Upload 142 files

.editorconfig

@@ -0,0 +1,13 @@
+root = true
+
+[*]
+indent_style = space
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 120
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false

.env.example

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+# Rename this file to .env.local once you have filled in the below environment variables!
+
+# Get your GROQ API Key here -
+# https://console.groq.com/keys
+# You only need this environment variable set if you want to use Groq models
+GROQ_API_KEY=
+
+# Get your Open AI API Key by following these instructions -
+# https://help.openai.com/en/articles/4936850-where-do-i-find-my-openai-api-key
+# You only need this environment variable set if you want to use GPT models
+OPENAI_API_KEY=
+
+# Get your Anthropic API Key in your account settings -
+# https://console.anthropic.com/settings/keys
+# You only need this environment variable set if you want to use Claude models
+ANTHROPIC_API_KEY=
+
+# Get your OpenRouter API Key in your account settings -
+# https://openrouter.ai/settings/keys
+# You only need this environment variable set if you want to use OpenRouter models
+OPEN_ROUTER_API_KEY=
+
+# Get your Google Generative AI API Key by following these instructions -
+# https://console.cloud.google.com/apis/credentials
+# You only need this environment variable set if you want to use Google Generative AI models
+GOOGLE_GENERATIVE_AI_API_KEY=
+
+# You only need this environment variable set if you want to use oLLAMA models
+# EXAMPLE http://localhost:11434
+OLLAMA_API_BASE_URL=
+
+# You only need this environment variable set if you want to use OpenAI Like models
+OPENAI_LIKE_API_BASE_URL=
+
+# Get your OpenAI Like API Key
+OPENAI_LIKE_API_KEY=
+
+# Get your Mistral API Key by following these instructions -
+# https://console.mistral.ai/api-keys/
+# You only need this environment variable set if you want to use Mistral models
+MISTRAL_API_KEY=
+
+# Include this environment variable if you want more logging for debugging locally
+VITE_LOG_LEVEL=debug

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: "Bug report"
+description: Create a report to help us improve
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for reporting an issue :pray:.
+
+        This issue tracker is for bugs and issues found with [Bolt.new](https://bolt.new).
+        If you experience issues related to WebContainer, please file an issue in our [WebContainer repo](https://github.com/stackblitz/webcontainer-core), or file an issue in our [StackBlitz core repo](https://github.com/stackblitz/core) for issues with StackBlitz.
+
+        The more information you fill in, the better we can help you.
+  - type: textarea
+    id: description
+    attributes:
+      label: Describe the bug
+      description: Provide a clear and concise description of what you're running into.
+    validations:
+      required: true
+  - type: input
+    id: link
+    attributes:
+      label: Link to the Bolt URL that caused the error
+      description: Please do not delete it after reporting!
+    validations:
+      required: true
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to reproduce
+      description: Describe the steps we have to take to reproduce the behavior.
+      placeholder: |
+        1. Go to '...'
+        2. Click on '....'
+        3. Scroll down to '....'
+        4. See error
+    validations:
+      required: true
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+      description: Provide a clear and concise description of what you expected to happen.
+    validations:
+      required: true
+  - type: textarea
+    id: screenshots
+    attributes:
+      label: Screen Recording / Screenshot
+      description: If applicable, **please include a screen recording** (preferably) or screenshot showcasing the issue. This will assist us in resolving your issue <u>quickly</u>.
+  - type: textarea
+    id: platform
+    attributes:
+      label: Platform
+      value: |
+        - OS: [e.g. macOS, Windows, Linux]
+        - Browser: [e.g. Chrome, Safari, Firefox]
+        - Version: [e.g. 91.1]
+  - type: textarea
+    id: additional
+    attributes:
+      label: Additional context
+      description: Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+---
+
+**Is your feature request related to a problem? Please describe:**
+
+<!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
+
+**Describe the solution you'd like:**
+
+<!-- A clear and concise description of what you want to happen. -->
+
+**Describe alternatives you've considered:**
+
+<!-- A clear and concise description of any alternative solutions or features you've considered. -->
+
+**Additional context:**
+
+<!-- Add any other context or screenshots about the feature request here. -->

.github/actions/setup-and-build/action.yaml

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+name: Setup and Build
+description: Generic setup action
+inputs:
+  pnpm-version:
+    required: false
+    type: string
+    default: '9.4.0'
+  node-version:
+    required: false
+    type: string
+    default: '20.15.1'
+
+runs:
+  using: composite
+
+  steps:
+    - uses: pnpm/action-setup@v4
+      with:
+        version: ${{ inputs.pnpm-version }}
+        run_install: false
+
+    - name: Set Node.js version to ${{ inputs.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ inputs.node-version }}
+        cache: pnpm
+
+    - name: Install dependencies and build project
+      shell: bash
+      run: |
+        pnpm install
+        pnpm run build

.github/workflows/ci.yaml

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+name: CI/CD
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup and Build
+        uses: ./.github/actions/setup-and-build
+
+      - name: Run type check
+        run: pnpm run typecheck
+
+      # - name: Run ESLint
+      #   run: pnpm run lint
+
+      - name: Run tests
+        run: pnpm run test

.github/workflows/github-build-push.yml

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+name: Build and Push Container
+
+on:
+  push:
+    branches:
+      - main
+    # paths:
+    #   - 'Dockerfile'
+  workflow_dispatch:    
+jobs:
+  build-and-push:
+    runs-on: [ubuntu-latest]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and Push Containers
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository }}:latest
+            ghcr.io/${{ github.repository }}:${{ github.sha }}        

.github/workflows/semantic-pr.yaml

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+name: Semantic Pull Request
+on:
+  pull_request_target:
+    types: [opened, reopened, edited, synchronize]
+permissions:
+  pull-requests: read
+jobs:
+  main:
+    name: Validate PR Title
+    runs-on: ubuntu-latest
+    steps:
+      # https://github.com/amannn/action-semantic-pull-request/releases/tag/v5.5.3
+      - uses: amannn/action-semantic-pull-request@0723387faaf9b38adef4775cd42cfd5155ed6017
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          subjectPattern: ^(?![A-Z]).+$
+          subjectPatternError: |
+            The subject "{subject}" found in the pull request title "{title}"
+            didn't match the configured pattern. Please ensure that the subject
+            doesn't start with an uppercase character.
+          types: |
+            fix
+            feat
+            chore
+            build
+            ci
+            perf
+            docs
+            refactor
+            revert
+            test

.gitignore

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+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+.vscode/*
+.vscode/launch.json
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+/.cache
+/build
+.env.local
+.env
+*.vars
+.wrangler
+_worker.bundle

.husky/commit-msg

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+#!/usr/bin/env sh
+
+. "$(dirname "$0")/_/husky.sh"
+
+npx commitlint --edit $1
+
+exit 0

.prettierignore

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+pnpm-lock.yaml
+.astro

.prettierrc

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+{
+  "printWidth": 120,
+  "singleQuote": true,
+  "useTabs": false,
+  "tabWidth": 2,
+  "semi": true,
+  "bracketSpacing": true
+}

.tool-versions

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+nodejs 20.15.1
+pnpm 9.4.0

CONTRIBUTING.md

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+# Contributing to Bolt.new Fork
+
+First off, thank you for considering contributing to Bolt.new! This fork aims to expand the capabilities of the original project by integrating multiple LLM providers and enhancing functionality. Every contribution helps make Bolt.new a better tool for developers worldwide.
+
+## 📋 Table of Contents
+- [Code of Conduct](#code-of-conduct)
+- [How Can I Contribute?](#how-can-i-contribute)
+- [Pull Request Guidelines](#pull-request-guidelines)
+- [Coding Standards](#coding-standards)
+- [Development Setup](#development-setup)
+- [Project Structure](#project-structure)
+
+## Code of Conduct
+
+This project and everyone participating in it is governed by our Code of Conduct. By participating, you are expected to uphold this code. Please report unacceptable behavior to the project maintainers.
+
+## How Can I Contribute?
+
+### 🐞 Reporting Bugs and Feature Requests
+- Check the issue tracker to avoid duplicates
+- Use the issue templates when available
+- Include as much relevant information as possible
+- For bugs, add steps to reproduce the issue
+
+### 🔧 Code Contributions
+1. Fork the repository
+2. Create a new branch for your feature/fix
+3. Write your code
+4. Submit a pull request
+
+### ✨ Becoming a Core Contributor
+We're looking for dedicated contributors to help maintain and grow this project. If you're interested in becoming a core contributor, please fill out our [Contributor Application Form](https://forms.gle/TBSteXSDCtBDwr5m7).
+
+## Pull Request Guidelines
+
+### 📝 PR Checklist
+- [ ] Branch from the main branch
+- [ ] Update documentation if needed
+- [ ] Manually verify all new functionality works as expected
+- [ ] Keep PRs focused and atomic
+
+### 👀 Review Process
+1. Manually test the changes
+2. At least one maintainer review required
+3. Address all review comments
+4. Maintain clean commit history
+
+## Coding Standards
+
+### 💻 General Guidelines
+- Follow existing code style
+- Comment complex logic
+- Keep functions focused and small
+- Use meaningful variable names
+
+## Development Setup
+
+### 🔄 Initial Setup
+1. Clone the repository:
+```bash
+git clone https://github.com/coleam00/bolt.new-any-llm.git
+```
+
+2. Install dependencies:
+```bash
+pnpm install
+```
+
+3. Set up environment variables:
+   - Rename `.env.example` to `.env.local`
+   - Add your LLM API keys (only set the ones you plan to use):
+```bash
+GROQ_API_KEY=XXX
+OPENAI_API_KEY=XXX
+ANTHROPIC_API_KEY=XXX
+...
+```
+   - Optionally set debug level:
+```bash
+VITE_LOG_LEVEL=debug
+```
+**Important**: Never commit your `.env.local` file to version control. It's already included in .gitignore.
+
+### 🚀 Running the Development Server
+```bash
+pnpm run dev
+```
+
+**Note**: You will need Google Chrome Canary to run this locally if you use Chrome! It's an easy install and a good browser for web development anyway.
+
+## Questions?
+
+For any questions about contributing, please:
+1. Check existing documentation
+2. Search through issues
+3. Create a new issue with the question label
+
+Thank you for contributing to Bolt.new! 🚀

Dockerfile

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+# Use an official Node.js runtime as the base image
+FROM node:20.15.1
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Install pnpm
+RUN npm install -g pnpm@9.4.0
+
+# Copy package.json and pnpm-lock.yaml (if available)
+COPY package.json pnpm-lock.yaml* ./
+
+# Install dependencies
+RUN pnpm install
+
+# Copy the rest of the application code
+COPY . .
+
+# Build the application
+RUN pnpm run build
+
+# Make sure bindings.sh is executable
+RUN chmod +x bindings.sh
+
+# Expose the port the app runs on (adjust if you specified a different port)
+EXPOSE 3000
+
+# Start the application
+CMD ["pnpm", "run", "start"]

LICENSE

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+MIT License
+
+Copyright (c) 2024 StackBlitz, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

app/components/chat/Artifact.tsx

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+import { useStore } from '@nanostores/react';
+import { AnimatePresence, motion } from 'framer-motion';
+import { computed } from 'nanostores';
+import { memo, useEffect, useRef, useState } from 'react';
+import { createHighlighter, type BundledLanguage, type BundledTheme, type HighlighterGeneric } from 'shiki';
+import type { ActionState } from '~/lib/runtime/action-runner';
+import { workbenchStore } from '~/lib/stores/workbench';
+import { classNames } from '~/utils/classNames';
+import { cubicEasingFn } from '~/utils/easings';
+
+const highlighterOptions = {
+  langs: ['shell'],
+  themes: ['light-plus', 'dark-plus'],
+};
+
+const shellHighlighter: HighlighterGeneric<BundledLanguage, BundledTheme> =
+  import.meta.hot?.data.shellHighlighter ?? (await createHighlighter(highlighterOptions));
+
+if (import.meta.hot) {
+  import.meta.hot.data.shellHighlighter = shellHighlighter;
+}
+
+interface ArtifactProps {
+  messageId: string;
+}
+
+export const Artifact = memo(({ messageId }: ArtifactProps) => {
+  const userToggledActions = useRef(false);
+  const [showActions, setShowActions] = useState(false);
+
+  const artifacts = useStore(workbenchStore.artifacts);
+  const artifact = artifacts[messageId];
+
+  const actions = useStore(
+    computed(artifact.runner.actions, (actions) => {
+      return Object.values(actions);
+    }),
+  );
+
+  const toggleActions = () => {
+    userToggledActions.current = true;
+    setShowActions(!showActions);
+  };
+
+  useEffect(() => {
+    if (actions.length && !showActions && !userToggledActions.current) {
+      setShowActions(true);
+    }
+  }, [actions]);
+
+  return (
+    <div className="artifact border border-bolt-elements-borderColor flex flex-col overflow-hidden rounded-lg w-full transition-border duration-150">
+      <div className="flex">
+        <button
+          className="flex items-stretch bg-bolt-elements-artifacts-background hover:bg-bolt-elements-artifacts-backgroundHover w-full overflow-hidden"
+          onClick={() => {
+            const showWorkbench = workbenchStore.showWorkbench.get();
+            workbenchStore.showWorkbench.set(!showWorkbench);
+          }}
+        >
+          <div className="px-5 p-3.5 w-full text-left">
+            <div className="w-full text-bolt-elements-textPrimary font-medium leading-5 text-sm">{artifact?.title}</div>
+            <div className="w-full w-full text-bolt-elements-textSecondary text-xs mt-0.5">Click to open Workbench</div>
+          </div>
+        </button>
+        <div className="bg-bolt-elements-artifacts-borderColor w-[1px]" />
+        <AnimatePresence>
+          {actions.length && (
+            <motion.button
+              initial={{ width: 0 }}
+              animate={{ width: 'auto' }}
+              exit={{ width: 0 }}
+              transition={{ duration: 0.15, ease: cubicEasingFn }}
+              className="bg-bolt-elements-artifacts-background hover:bg-bolt-elements-artifacts-backgroundHover"
+              onClick={toggleActions}
+            >
+              <div className="p-4">
+                <div className={showActions ? 'i-ph:caret-up-bold' : 'i-ph:caret-down-bold'}></div>
+              </div>
+            </motion.button>
+          )}
+        </AnimatePresence>
+      </div>
+      <AnimatePresence>
+        {showActions && actions.length > 0 && (
+          <motion.div
+            className="actions"
+            initial={{ height: 0 }}
+            animate={{ height: 'auto' }}
+            exit={{ height: '0px' }}
+            transition={{ duration: 0.15 }}
+          >
+            <div className="bg-bolt-elements-artifacts-borderColor h-[1px]" />
+            <div className="p-5 text-left bg-bolt-elements-actions-background">
+              <ActionList actions={actions} />
+            </div>
+          </motion.div>
+        )}
+      </AnimatePresence>
+    </div>
+  );
+});
+
+interface ShellCodeBlockProps {
+  classsName?: string;
+  code: string;
+}
+
+function ShellCodeBlock({ classsName, code }: ShellCodeBlockProps) {
+  return (
+    <div
+      className={classNames('text-xs', classsName)}
+      dangerouslySetInnerHTML={{
+        __html: shellHighlighter.codeToHtml(code, {
+          lang: 'shell',
+          theme: 'dark-plus',
+        }),
+      }}
+    ></div>
+  );
+}
+
+interface ActionListProps {
+  actions: ActionState[];
+}
+
+const actionVariants = {
+  hidden: { opacity: 0, y: 20 },
+  visible: { opacity: 1, y: 0 },
+};
+
+const ActionList = memo(({ actions }: ActionListProps) => {
+  return (
+    <motion.div initial={{ opacity: 0 }} animate={{ opacity: 1 }} exit={{ opacity: 0 }} transition={{ duration: 0.15 }}>
+      <ul className="list-none space-y-2.5">
+        {actions.map((action, index) => {
+          const { status, type, content } = action;
+          const isLast = index === actions.length - 1;
+
+          return (
+            <motion.li
+              key={index}
+              variants={actionVariants}
+              initial="hidden"
+              animate="visible"
+              transition={{
+                duration: 0.2,
+                ease: cubicEasingFn,
+              }}
+            >
+              <div className="flex items-center gap-1.5 text-sm">
+                <div className={classNames('text-lg', getIconColor(action.status))}>
+                  {status === 'running' ? (
+                    <div className="i-svg-spinners:90-ring-with-bg"></div>
+                  ) : status === 'pending' ? (
+                    <div className="i-ph:circle-duotone"></div>
+                  ) : status === 'complete' ? (
+                    <div className="i-ph:check"></div>
+                  ) : status === 'failed' || status === 'aborted' ? (
+                    <div className="i-ph:x"></div>
+                  ) : null}
+                </div>
+                {type === 'file' ? (
+                  <div>
+                    Create{' '}
+                    <code className="bg-bolt-elements-artifacts-inlineCode-background text-bolt-elements-artifacts-inlineCode-text px-1.5 py-1 rounded-md">
+                      {action.filePath}
+                    </code>
+                  </div>
+                ) : type === 'shell' ? (
+                  <div className="flex items-center w-full min-h-[28px]">
+                    <span className="flex-1">Run command</span>
+                  </div>
+                ) : null}
+              </div>
+              {type === 'shell' && (
+                <ShellCodeBlock
+                  classsName={classNames('mt-1', {
+                    'mb-3.5': !isLast,
+                  })}
+                  code={content}
+                />
+              )}
+            </motion.li>
+          );
+        })}
+      </ul>
+    </motion.div>
+  );
+});
+
+function getIconColor(status: ActionState['status']) {
+  switch (status) {
+    case 'pending': {
+      return 'text-bolt-elements-textTertiary';
+    }
+    case 'running': {
+      return 'text-bolt-elements-loader-progress';
+    }
+    case 'complete': {
+      return 'text-bolt-elements-icon-success';
+    }
+    case 'aborted': {
+      return 'text-bolt-elements-textSecondary';
+    }
+    case 'failed': {
+      return 'text-bolt-elements-icon-error';
+    }
+    default: {
+      return undefined;
+    }
+  }
+}

app/components/chat/AssistantMessage.tsx

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+import { memo } from 'react';
+import { Markdown } from './Markdown';
+
+interface AssistantMessageProps {
+  content: string;
+}
+
+export const AssistantMessage = memo(({ content }: AssistantMessageProps) => {
+  return (
+    <div className="overflow-hidden w-full">
+      <Markdown html>{content}</Markdown>
+    </div>
+  );
+});

app/components/chat/BaseChat.module.scss

@@ -0,0 +1,19 @@
+.BaseChat {
+  &[data-chat-visible='false'] {
+    --workbench-inner-width: 100%;
+    --workbench-left: 0;
+
+    .Chat {
+      --at-apply: bolt-ease-cubic-bezier;
+      transition-property: transform, opacity;
+      transition-duration: 0.3s;
+      will-change: transform, opacity;
+      transform: translateX(-50%);
+      opacity: 0;
+    }
+  }
+}
+
+.Chat {
+  opacity: 1;
+}

app/components/chat/BaseChat.tsx

@@ -0,0 +1,269 @@
+// @ts-nocheck
+// Preventing TS checks with files presented in the video for a better presentation.
+import type { Message } from 'ai';
+import React, { type RefCallback } from 'react';
+import { ClientOnly } from 'remix-utils/client-only';
+import { Menu } from '~/components/sidebar/Menu.client';
+import { IconButton } from '~/components/ui/IconButton';
+import { Workbench } from '~/components/workbench/Workbench.client';
+import { classNames } from '~/utils/classNames';
+import { MODEL_LIST, DEFAULT_PROVIDER } from '~/utils/constants';
+import { Messages } from './Messages.client';
+import { SendButton } from './SendButton.client';
+import { useState } from 'react';
+
+import styles from './BaseChat.module.scss';
+
+const EXAMPLE_PROMPTS = [
+  { text: 'Build a todo app in React using Tailwind' },
+  { text: 'Build a simple blog using Astro' },
+  { text: 'Create a cookie consent form using Material UI' },
+  { text: 'Make a space invaders game' },
+  { text: 'How do I center a div?' },
+];
+
+const providerList = [...new Set(MODEL_LIST.map((model) => model.provider))]
+
+const ModelSelector = ({ model, setModel, modelList, providerList }) => {
+  const [provider, setProvider] = useState(DEFAULT_PROVIDER);
+  return (
+    <div className="mb-2">
+      <select
+        value={provider}
+        onChange={(e) => {
+          setProvider(e.target.value);
+          const firstModel = [...modelList].find(m => m.provider == e.target.value);
+          setModel(firstModel ? firstModel.name : '');
+        }}
+        className="w-full p-2 rounded-lg border border-bolt-elements-borderColor bg-bolt-elements-prompt-background text-bolt-elements-textPrimary focus:outline-none"
+      >
+        {providerList.map((provider) => (
+          <option key={provider} value={provider}>
+            {provider}
+          </option>
+        ))}
+        <option key="Ollama" value="Ollama">
+          Ollama
+        </option>
+        <option key="OpenAILike" value="OpenAILike">
+          OpenAILike
+        </option>
+      </select>
+      <select
+        value={model}
+        onChange={(e) => setModel(e.target.value)}
+        className="w-full p-2 rounded-lg border border-bolt-elements-borderColor bg-bolt-elements-prompt-background text-bolt-elements-textPrimary focus:outline-none"
+      >
+        {[...modelList].filter(e => e.provider == provider && e.name).map((modelOption) => (
+          <option key={modelOption.name} value={modelOption.name}>
+            {modelOption.label}
+          </option>
+        ))}
+      </select>
+    </div>
+  );
+};
+
+const TEXTAREA_MIN_HEIGHT = 76;
+
+interface BaseChatProps {
+  textareaRef?: React.RefObject<HTMLTextAreaElement> | undefined;
+  messageRef?: RefCallback<HTMLDivElement> | undefined;
+  scrollRef?: RefCallback<HTMLDivElement> | undefined;
+  showChat?: boolean;
+  chatStarted?: boolean;
+  isStreaming?: boolean;
+  messages?: Message[];
+  enhancingPrompt?: boolean;
+  promptEnhanced?: boolean;
+  input?: string;
+  model: string;
+  setModel: (model: string) => void;
+  handleStop?: () => void;
+  sendMessage?: (event: React.UIEvent, messageInput?: string) => void;
+  handleInputChange?: (event: React.ChangeEvent<HTMLTextAreaElement>) => void;
+  enhancePrompt?: () => void;
+}
+
+export const BaseChat = React.forwardRef<HTMLDivElement, BaseChatProps>(
+  (
+    {
+      textareaRef,
+      messageRef,
+      scrollRef,
+      showChat = true,
+      chatStarted = false,
+      isStreaming = false,
+      enhancingPrompt = false,
+      promptEnhanced = false,
+      messages,
+      input = '',
+      model,
+      setModel,
+      sendMessage,
+      handleInputChange,
+      enhancePrompt,
+      handleStop,
+    },
+    ref,
+  ) => {
+    const TEXTAREA_MAX_HEIGHT = chatStarted ? 400 : 200;
+
+    return (
+      <div
+        ref={ref}
+        className={classNames(
+          styles.BaseChat,
+          'relative flex h-full w-full overflow-hidden bg-bolt-elements-background-depth-1',
+        )}
+        data-chat-visible={showChat}
+      >
+        <ClientOnly>{() => <Menu />}</ClientOnly>
+        <div ref={scrollRef} className="flex overflow-y-auto w-full h-full">
+          <div className={classNames(styles.Chat, 'flex flex-col flex-grow min-w-[var(--chat-min-width)] h-full')}>
+            {!chatStarted && (
+              <div id="intro" className="mt-[26vh] max-w-chat mx-auto">
+                <h1 className="text-5xl text-center font-bold text-bolt-elements-textPrimary mb-2">
+                  Where ideas begin
+                </h1>
+                <p className="mb-4 text-center text-bolt-elements-textSecondary">
+                  Bring ideas to life in seconds or get help on existing projects.
+                </p>
+              </div>
+            )}
+            <div
+              className={classNames('pt-6 px-6', {
+                'h-full flex flex-col': chatStarted,
+              })}
+            >
+              <ClientOnly>
+                {() => {
+                  return chatStarted ? (
+                    <Messages
+                      ref={messageRef}
+                      className="flex flex-col w-full flex-1 max-w-chat px-4 pb-6 mx-auto z-1"
+                      messages={messages}
+                      isStreaming={isStreaming}
+                    />
+                  ) : null;
+                }}
+              </ClientOnly>
+              <div
+                className={classNames('relative w-full max-w-chat mx-auto z-prompt', {
+                  'sticky bottom-0': chatStarted,
+                })}
+              >
+                <ModelSelector
+                  model={model}
+                  setModel={setModel}
+                  modelList={MODEL_LIST}
+                  providerList={providerList}
+                />
+                <div
+                  className={classNames(
+                    'shadow-sm border border-bolt-elements-borderColor bg-bolt-elements-prompt-background backdrop-filter backdrop-blur-[8px] rounded-lg overflow-hidden',
+                  )}
+                >
+                  <textarea
+                    ref={textareaRef}
+                    className={`w-full pl-4 pt-4 pr-16 focus:outline-none resize-none text-md text-bolt-elements-textPrimary placeholder-bolt-elements-textTertiary bg-transparent`}
+                    onKeyDown={(event) => {
+                      if (event.key === 'Enter') {
+                        if (event.shiftKey) {
+                          return;
+                        }
+
+                        event.preventDefault();
+
+                        sendMessage?.(event);
+                      }
+                    }}
+                    value={input}
+                    onChange={(event) => {
+                      handleInputChange?.(event);
+                    }}
+                    style={{
+                      minHeight: TEXTAREA_MIN_HEIGHT,
+                      maxHeight: TEXTAREA_MAX_HEIGHT,
+                    }}
+                    placeholder="How can Bolt help you today?"
+                    translate="no"
+                  />
+                  <ClientOnly>
+                    {() => (
+                      <SendButton
+                        show={input.length > 0 || isStreaming}
+                        isStreaming={isStreaming}
+                        onClick={(event) => {
+                          if (isStreaming) {
+                            handleStop?.();
+                            return;
+                          }
+
+                          sendMessage?.(event);
+                        }}
+                      />
+                    )}
+                  </ClientOnly>
+                  <div className="flex justify-between text-sm p-4 pt-2">
+                    <div className="flex gap-1 items-center">
+                      <IconButton
+                        title="Enhance prompt"
+                        disabled={input.length === 0 || enhancingPrompt}
+                        className={classNames({
+                          'opacity-100!': enhancingPrompt,
+                          'text-bolt-elements-item-contentAccent! pr-1.5 enabled:hover:bg-bolt-elements-item-backgroundAccent!':
+                            promptEnhanced,
+                        })}
+                        onClick={() => enhancePrompt?.()}
+                      >
+                        {enhancingPrompt ? (
+                          <>
+                            <div className="i-svg-spinners:90-ring-with-bg text-bolt-elements-loader-progress text-xl"></div>
+                            <div className="ml-1.5">Enhancing prompt...</div>
+                          </>
+                        ) : (
+                          <>
+                            <div className="i-bolt:stars text-xl"></div>
+                            {promptEnhanced && <div className="ml-1.5">Prompt enhanced</div>}
+                          </>
+                        )}
+                      </IconButton>
+                    </div>
+                    {input.length > 3 ? (
+                      <div className="text-xs text-bolt-elements-textTertiary">
+                        Use <kbd className="kdb">Shift</kbd> + <kbd className="kdb">Return</kbd> for a new line
+                      </div>
+                    ) : null}
+                  </div>
+                </div>
+                <div className="bg-bolt-elements-background-depth-1 pb-6">{/* Ghost Element */}</div>
+              </div>
+            </div>
+            {!chatStarted && (
+              <div id="examples" className="relative w-full max-w-xl mx-auto mt-8 flex justify-center">
+                <div className="flex flex-col space-y-2 [mask-image:linear-gradient(to_bottom,black_0%,transparent_180%)] hover:[mask-image:none]">
+                  {EXAMPLE_PROMPTS.map((examplePrompt, index) => {
+                    return (
+                      <button
+                        key={index}
+                        onClick={(event) => {
+                          sendMessage?.(event, examplePrompt.text);
+                        }}
+                        className="group flex items-center w-full gap-2 justify-center bg-transparent text-bolt-elements-textTertiary hover:text-bolt-elements-textPrimary transition-theme"
+                      >
+                        {examplePrompt.text}
+                        <div className="i-ph:arrow-bend-down-left" />
+                      </button>
+                    );
+                  })}
+                </div>
+              </div>
+            )}
+          </div>
+          <ClientOnly>{() => <Workbench chatStarted={chatStarted} isStreaming={isStreaming} />}</ClientOnly>
+        </div>
+      </div>
+    );
+  },
+);

app/components/chat/Chat.client.tsx

@@ -0,0 +1,240 @@
+// @ts-nocheck
+// Preventing TS checks with files presented in the video for a better presentation.
+import { useStore } from '@nanostores/react';
+import type { Message } from 'ai';
+import { useChat } from 'ai/react';
+import { useAnimate } from 'framer-motion';
+import { memo, useEffect, useRef, useState } from 'react';
+import { cssTransition, toast, ToastContainer } from 'react-toastify';
+import { useMessageParser, usePromptEnhancer, useShortcuts, useSnapScroll } from '~/lib/hooks';
+import { useChatHistory } from '~/lib/persistence';
+import { chatStore } from '~/lib/stores/chat';
+import { workbenchStore } from '~/lib/stores/workbench';
+import { fileModificationsToHTML } from '~/utils/diff';
+import { DEFAULT_MODEL } from '~/utils/constants';
+import { cubicEasingFn } from '~/utils/easings';
+import { createScopedLogger, renderLogger } from '~/utils/logger';
+import { BaseChat } from './BaseChat';
+
+const toastAnimation = cssTransition({
+  enter: 'animated fadeInRight',
+  exit: 'animated fadeOutRight',
+});
+
+const logger = createScopedLogger('Chat');
+
+export function Chat() {
+  renderLogger.trace('Chat');
+
+  const { ready, initialMessages, storeMessageHistory } = useChatHistory();
+
+  return (
+    <>
+      {ready && <ChatImpl initialMessages={initialMessages} storeMessageHistory={storeMessageHistory} />}
+      <ToastContainer
+        closeButton={({ closeToast }) => {
+          return (
+            <button className="Toastify__close-button" onClick={closeToast}>
+              <div className="i-ph:x text-lg" />
+            </button>
+          );
+        }}
+        icon={({ type }) => {
+          /**
+           * @todo Handle more types if we need them. This may require extra color palettes.
+           */
+          switch (type) {
+            case 'success': {
+              return <div className="i-ph:check-bold text-bolt-elements-icon-success text-2xl" />;
+            }
+            case 'error': {
+              return <div className="i-ph:warning-circle-bold text-bolt-elements-icon-error text-2xl" />;
+            }
+          }
+
+          return undefined;
+        }}
+        position="bottom-right"
+        pauseOnFocusLoss
+        transition={toastAnimation}
+      />
+    </>
+  );
+}
+
+interface ChatProps {
+  initialMessages: Message[];
+  storeMessageHistory: (messages: Message[]) => Promise<void>;
+}
+
+export const ChatImpl = memo(({ initialMessages, storeMessageHistory }: ChatProps) => {
+  useShortcuts();
+
+  const textareaRef = useRef<HTMLTextAreaElement>(null);
+
+  const [chatStarted, setChatStarted] = useState(initialMessages.length > 0);
+  const [model, setModel] = useState(DEFAULT_MODEL);
+
+  const { showChat } = useStore(chatStore);
+
+  const [animationScope, animate] = useAnimate();
+
+  const { messages, isLoading, input, handleInputChange, setInput, stop, append } = useChat({
+    api: '/api/chat',
+    onError: (error) => {
+      logger.error('Request failed\n\n', error);
+      toast.error('There was an error processing your request');
+    },
+    onFinish: () => {
+      logger.debug('Finished streaming');
+    },
+    initialMessages,
+  });
+
+  const { enhancingPrompt, promptEnhanced, enhancePrompt, resetEnhancer } = usePromptEnhancer();
+  const { parsedMessages, parseMessages } = useMessageParser();
+
+  const TEXTAREA_MAX_HEIGHT = chatStarted ? 400 : 200;
+
+  useEffect(() => {
+    chatStore.setKey('started', initialMessages.length > 0);
+  }, []);
+
+  useEffect(() => {
+    parseMessages(messages, isLoading);
+
+    if (messages.length > initialMessages.length) {
+      storeMessageHistory(messages).catch((error) => toast.error(error.message));
+    }
+  }, [messages, isLoading, parseMessages]);
+
+  const scrollTextArea = () => {
+    const textarea = textareaRef.current;
+
+    if (textarea) {
+      textarea.scrollTop = textarea.scrollHeight;
+    }
+  };
+
+  const abort = () => {
+    stop();
+    chatStore.setKey('aborted', true);
+    workbenchStore.abortAllActions();
+  };
+
+  useEffect(() => {
+    const textarea = textareaRef.current;
+
+    if (textarea) {
+      textarea.style.height = 'auto';
+
+      const scrollHeight = textarea.scrollHeight;
+
+      textarea.style.height = `${Math.min(scrollHeight, TEXTAREA_MAX_HEIGHT)}px`;
+      textarea.style.overflowY = scrollHeight > TEXTAREA_MAX_HEIGHT ? 'auto' : 'hidden';
+    }
+  }, [input, textareaRef]);
+
+  const runAnimation = async () => {
+    if (chatStarted) {
+      return;
+    }
+
+    await Promise.all([
+      animate('#examples', { opacity: 0, display: 'none' }, { duration: 0.1 }),
+      animate('#intro', { opacity: 0, flex: 1 }, { duration: 0.2, ease: cubicEasingFn }),
+    ]);
+
+    chatStore.setKey('started', true);
+
+    setChatStarted(true);
+  };
+
+  const sendMessage = async (_event: React.UIEvent, messageInput?: string) => {
+    const _input = messageInput || input;
+
+    if (_input.length === 0 || isLoading) {
+      return;
+    }
+
+    /**
+     * @note (delm) Usually saving files shouldn't take long but it may take longer if there
+     * many unsaved files. In that case we need to block user input and show an indicator
+     * of some kind so the user is aware that something is happening. But I consider the
+     * happy case to be no unsaved files and I would expect users to save their changes
+     * before they send another message.
+     */
+    await workbenchStore.saveAllFiles();
+
+    const fileModifications = workbenchStore.getFileModifcations();
+
+    chatStore.setKey('aborted', false);
+
+    runAnimation();
+
+    if (fileModifications !== undefined) {
+      const diff = fileModificationsToHTML(fileModifications);
+
+      /**
+       * If we have file modifications we append a new user message manually since we have to prefix
+       * the user input with the file modifications and we don't want the new user input to appear
+       * in the prompt. Using `append` is almost the same as `handleSubmit` except that we have to
+       * manually reset the input and we'd have to manually pass in file attachments. However, those
+       * aren't relevant here.
+       */
+      append({ role: 'user', content: `[Model: ${model}]\n\n${diff}\n\n${_input}` });
+
+      /**
+       * After sending a new message we reset all modifications since the model
+       * should now be aware of all the changes.
+       */
+      workbenchStore.resetAllFileModifications();
+    } else {
+      append({ role: 'user', content: `[Model: ${model}]\n\n${_input}` });
+    }
+
+    setInput('');
+
+    resetEnhancer();
+
+    textareaRef.current?.blur();
+  };
+
+  const [messageRef, scrollRef] = useSnapScroll();
+
+  return (
+    <BaseChat
+      ref={animationScope}
+      textareaRef={textareaRef}
+      input={input}
+      showChat={showChat}
+      chatStarted={chatStarted}
+      isStreaming={isLoading}
+      enhancingPrompt={enhancingPrompt}
+      promptEnhanced={promptEnhanced}
+      sendMessage={sendMessage}
+      model={model}
+      setModel={setModel}
+      messageRef={messageRef}
+      scrollRef={scrollRef}
+      handleInputChange={handleInputChange}
+      handleStop={abort}
+      messages={messages.map((message, i) => {
+        if (message.role === 'user') {
+          return message;
+        }
+
+        return {
+          ...message,
+          content: parsedMessages[i] || '',
+        };
+      })}
+      enhancePrompt={() => {
+        enhancePrompt(input, (input) => {
+          setInput(input);
+          scrollTextArea();
+        });
+      }}
+    />
+  );
+});

app/components/chat/CodeBlock.module.scss

@@ -0,0 +1,10 @@
+.CopyButtonContainer {
+  button:before {
+    content: 'Copied';
+    font-size: 12px;
+    position: absolute;
+    left: -53px;
+    padding: 2px 6px;
+    height: 30px;
+  }
+}

app/components/chat/CodeBlock.tsx

@@ -0,0 +1,82 @@
+import { memo, useEffect, useState } from 'react';
+import { bundledLanguages, codeToHtml, isSpecialLang, type BundledLanguage, type SpecialLanguage } from 'shiki';
+import { classNames } from '~/utils/classNames';
+import { createScopedLogger } from '~/utils/logger';
+
+import styles from './CodeBlock.module.scss';
+
+const logger = createScopedLogger('CodeBlock');
+
+interface CodeBlockProps {
+  className?: string;
+  code: string;
+  language?: BundledLanguage | SpecialLanguage;
+  theme?: 'light-plus' | 'dark-plus';
+  disableCopy?: boolean;
+}
+
+export const CodeBlock = memo(
+  ({ className, code, language = 'plaintext', theme = 'dark-plus', disableCopy = false }: CodeBlockProps) => {
+    const [html, setHTML] = useState<string | undefined>(undefined);
+    const [copied, setCopied] = useState(false);
+
+    const copyToClipboard = () => {
+      if (copied) {
+        return;
+      }
+
+      navigator.clipboard.writeText(code);
+
+      setCopied(true);
+
+      setTimeout(() => {
+        setCopied(false);
+      }, 2000);
+    };
+
+    useEffect(() => {
+      if (language && !isSpecialLang(language) && !(language in bundledLanguages)) {
+        logger.warn(`Unsupported language '${language}'`);
+      }
+
+      logger.trace(`Language = ${language}`);
+
+      const processCode = async () => {
+        setHTML(await codeToHtml(code, { lang: language, theme }));
+      };
+
+      processCode();
+    }, [code]);
+
+    return (
+      <div className={classNames('relative group text-left', className)}>
+        <div
+          className={classNames(
+            styles.CopyButtonContainer,
+            'bg-white absolute top-[10px] right-[10px] rounded-md z-10 text-lg flex items-center justify-center opacity-0 group-hover:opacity-100',
+            {
+              'rounded-l-0 opacity-100': copied,
+            },
+          )}
+        >
+          {!disableCopy && (
+            <button
+              className={classNames(
+                'flex items-center bg-transparent p-[6px] justify-center before:bg-white before:rounded-l-md before:text-gray-500 before:border-r before:border-gray-300',
+                {
+                  'before:opacity-0': !copied,
+                  'before:opacity-100': copied,
+                },
+              )}
+              title="Copy Code"
+              onClick={() => copyToClipboard()}
+            >
+              <div className="i-ph:clipboard-text-duotone"></div>
+            </button>
+          )}
+        </div>
+        <div dangerouslySetInnerHTML={{ __html: html ?? '' }}></div>
+      </div>
+    );
+  },
+);

app/components/chat/Markdown.module.scss

@@ -0,0 +1,171 @@
+$font-mono: ui-monospace, 'Fira Code', Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
+$code-font-size: 13px;
+
+@mixin not-inside-actions {
+  &:not(:has(:global(.actions)), :global(.actions *)) {
+    @content;
+  }
+}
+
+.MarkdownContent {
+  line-height: 1.6;
+  color: var(--bolt-elements-textPrimary);
+
+  > *:not(:last-child) {
+    margin-block-end: 16px;
+  }
+
+  :global(.artifact) {
+    margin: 1.5em 0;
+  }
+
+  :is(h1, h2, h3, h4, h5, h6) {
+    @include not-inside-actions {
+      margin-block-start: 24px;
+      margin-block-end: 16px;
+      font-weight: 600;
+      line-height: 1.25;
+      color: var(--bolt-elements-textPrimary);
+    }
+  }
+
+  h1 {
+    font-size: 2em;
+    border-bottom: 1px solid var(--bolt-elements-borderColor);
+    padding-bottom: 0.3em;
+  }
+
+  h2 {
+    font-size: 1.5em;
+    border-bottom: 1px solid var(--bolt-elements-borderColor);
+    padding-bottom: 0.3em;
+  }
+
+  h3 {
+    font-size: 1.25em;
+  }
+
+  h4 {
+    font-size: 1em;
+  }
+
+  h5 {
+    font-size: 0.875em;
+  }
+
+  h6 {
+    font-size: 0.85em;
+    color: #6a737d;
+  }
+
+  p {
+    white-space: pre-wrap;
+
+    &:not(:last-of-type) {
+      margin-block-start: 0;
+      margin-block-end: 16px;
+    }
+  }
+
+  a {
+    color: var(--bolt-elements-messages-linkColor);
+    text-decoration: none;
+    cursor: pointer;
+
+    &:hover {
+      text-decoration: underline;
+    }
+  }
+
+  :not(pre) > code {
+    font-family: $font-mono;
+    font-size: $code-font-size;
+
+    @include not-inside-actions {
+      border-radius: 6px;
+      padding: 0.2em 0.4em;
+      background-color: var(--bolt-elements-messages-inlineCode-background);
+      color: var(--bolt-elements-messages-inlineCode-text);
+    }
+  }
+
+  pre {
+    padding: 20px 16px;
+    border-radius: 6px;
+  }
+
+  pre:has(> code) {
+    font-family: $font-mono;
+    font-size: $code-font-size;
+    background: transparent;
+    overflow-x: auto;
+    min-width: 0;
+  }
+
+  blockquote {
+    margin: 0;
+    padding: 0 1em;
+    color: var(--bolt-elements-textTertiary);
+    border-left: 0.25em solid var(--bolt-elements-borderColor);
+  }
+
+  :is(ul, ol) {
+    @include not-inside-actions {
+      padding-left: 2em;
+      margin-block-start: 0;
+      margin-block-end: 16px;
+    }
+  }
+
+  ul {
+    @include not-inside-actions {
+      list-style-type: disc;
+    }
+  }
+
+  ol {
+    @include not-inside-actions {
+      list-style-type: decimal;
+    }
+  }
+
+  li {
+    @include not-inside-actions {
+      & + li {
+        margin-block-start: 8px;
+      }
+
+      > *:not(:last-child) {
+        margin-block-end: 16px;
+      }
+    }
+  }
+
+  img {
+    max-width: 100%;
+    box-sizing: border-box;
+  }
+
+  hr {
+    height: 0.25em;
+    padding: 0;
+    margin: 24px 0;
+    background-color: var(--bolt-elements-borderColor);
+    border: 0;
+  }
+
+  table {
+    border-collapse: collapse;
+    width: 100%;
+    margin-block-end: 16px;
+
+    :is(th, td) {
+      padding: 6px 13px;
+      border: 1px solid #dfe2e5;
+    }
+
+    tr:nth-child(2n) {
+      background-color: #f6f8fa;
+    }
+  }
+}

app/components/chat/Markdown.tsx

@@ -0,0 +1,74 @@
+import { memo, useMemo } from 'react';
+import ReactMarkdown, { type Components } from 'react-markdown';
+import type { BundledLanguage } from 'shiki';
+import { createScopedLogger } from '~/utils/logger';
+import { rehypePlugins, remarkPlugins, allowedHTMLElements } from '~/utils/markdown';
+import { Artifact } from './Artifact';
+import { CodeBlock } from './CodeBlock';
+
+import styles from './Markdown.module.scss';
+
+const logger = createScopedLogger('MarkdownComponent');
+
+interface MarkdownProps {
+  children: string;
+  html?: boolean;
+  limitedMarkdown?: boolean;
+}
+
+export const Markdown = memo(({ children, html = false, limitedMarkdown = false }: MarkdownProps) => {
+  logger.trace('Render');
+
+  const components = useMemo(() => {
+    return {
+      div: ({ className, children, node, ...props }) => {
+        if (className?.includes('__boltArtifact__')) {
+          const messageId = node?.properties.dataMessageId as string;
+
+          if (!messageId) {
+            logger.error(`Invalid message id ${messageId}`);
+          }
+
+          return <Artifact messageId={messageId} />;
+        }
+
+        return (
+          <div className={className} {...props}>
+            {children}
+          </div>
+        );
+      },
+      pre: (props) => {
+        const { children, node, ...rest } = props;
+
+        const [firstChild] = node?.children ?? [];
+
+        if (
+          firstChild &&
+          firstChild.type === 'element' &&
+          firstChild.tagName === 'code' &&
+          firstChild.children[0].type === 'text'
+        ) {
+          const { className, ...rest } = firstChild.properties;
+          const [, language = 'plaintext'] = /language-(\w+)/.exec(String(className) || '') ?? [];
+
+          return <CodeBlock code={firstChild.children[0].value} language={language as BundledLanguage} {...rest} />;
+        }
+
+        return <pre {...rest}>{children}</pre>;
+      },
+    } satisfies Components;
+  }, []);
+
+  return (
+    <ReactMarkdown
+      allowedElements={allowedHTMLElements}
+      className={styles.MarkdownContent}
+      components={components}
+      remarkPlugins={remarkPlugins(limitedMarkdown)}
+      rehypePlugins={rehypePlugins(html)}
+    >
+      {children}
+    </ReactMarkdown>
+  );
+});

app/components/chat/Messages.client.tsx

@@ -0,0 +1,53 @@
+import type { Message } from 'ai';
+import React from 'react';
+import { classNames } from '~/utils/classNames';
+import { AssistantMessage } from './AssistantMessage';
+import { UserMessage } from './UserMessage';
+
+interface MessagesProps {
+  id?: string;
+  className?: string;
+  isStreaming?: boolean;
+  messages?: Message[];
+}
+
+export const Messages = React.forwardRef<HTMLDivElement, MessagesProps>((props: MessagesProps, ref) => {
+  const { id, isStreaming = false, messages = [] } = props;
+
+  return (
+    <div id={id} ref={ref} className={props.className}>
+      {messages.length > 0
+        ? messages.map((message, index) => {
+            const { role, content } = message;
+            const isUserMessage = role === 'user';
+            const isFirst = index === 0;
+            const isLast = index === messages.length - 1;
+
+            return (
+              <div
+                key={index}
+                className={classNames('flex gap-4 p-6 w-full rounded-[calc(0.75rem-1px)]', {
+                  'bg-bolt-elements-messages-background': isUserMessage || !isStreaming || (isStreaming && !isLast),
+                  'bg-gradient-to-b from-bolt-elements-messages-background from-30% to-transparent':
+                    isStreaming && isLast,
+                  'mt-4': !isFirst,
+                })}
+              >
+                {isUserMessage && (
+                  <div className="flex items-center justify-center w-[34px] h-[34px] overflow-hidden bg-white text-gray-600 rounded-full shrink-0 self-start">
+                    <div className="i-ph:user-fill text-xl"></div>
+                  </div>
+                )}
+                <div className="grid grid-col-1 w-full">
+                  {isUserMessage ? <UserMessage content={content} /> : <AssistantMessage content={content} />}
+                </div>
+              </div>
+            );
+          })
+        : null}
+      {isStreaming && (
+        <div className="text-center w-full text-bolt-elements-textSecondary i-svg-spinners:3-dots-fade text-4xl mt-4"></div>
+      )}
+    </div>
+  );
+});

app/components/chat/SendButton.client.tsx

@@ -0,0 +1,33 @@
+import { AnimatePresence, cubicBezier, motion } from 'framer-motion';
+
+interface SendButtonProps {
+  show: boolean;
+  isStreaming?: boolean;
+  onClick?: (event: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
+}
+
+const customEasingFn = cubicBezier(0.4, 0, 0.2, 1);
+
+export function SendButton({ show, isStreaming, onClick }: SendButtonProps) {
+  return (
+    <AnimatePresence>
+      {show ? (
+        <motion.button
+          className="absolute flex justify-center items-center top-[18px] right-[22px] p-1 bg-accent-500 hover:brightness-94 color-white rounded-md w-[34px] h-[34px] transition-theme"
+          transition={{ ease: customEasingFn, duration: 0.17 }}
+          initial={{ opacity: 0, y: 10 }}
+          animate={{ opacity: 1, y: 0 }}
+          exit={{ opacity: 0, y: 10 }}
+          onClick={(event) => {
+            event.preventDefault();
+            onClick?.(event);
+          }}
+        >
+          <div className="text-lg">
+            {!isStreaming ? <div className="i-ph:arrow-right"></div> : <div className="i-ph:stop-circle-bold"></div>}
+          </div>
+        </motion.button>
+      ) : null}
+    </AnimatePresence>
+  );
+}

app/components/chat/UserMessage.tsx

@@ -0,0 +1,21 @@
+// @ts-nocheck
+// Preventing TS checks with files presented in the video for a better presentation.
+import { modificationsRegex } from '~/utils/diff';
+import { MODEL_REGEX } from '~/utils/constants';
+import { Markdown } from './Markdown';
+
+interface UserMessageProps {
+  content: string;
+}
+
+export function UserMessage({ content }: UserMessageProps) {
+  return (
+    <div className="overflow-hidden pt-[4px]">
+      <Markdown limitedMarkdown>{sanitizeUserMessage(content)}</Markdown>
+    </div>
+  );
+}
+
+function sanitizeUserMessage(content: string) {
+  return content.replace(modificationsRegex, '').replace(MODEL_REGEX, '').trim();
+}

app/components/editor/codemirror/BinaryContent.tsx

@@ -0,0 +1,7 @@
+export function BinaryContent() {
+  return (
+    <div className="flex items-center justify-center absolute inset-0 z-10 text-sm bg-tk-elements-app-backgroundColor text-tk-elements-app-textColor">
+      File format cannot be displayed.
+    </div>
+  );
+}

app/components/editor/codemirror/CodeMirrorEditor.tsx

@@ -0,0 +1,461 @@
+import { acceptCompletion, autocompletion, closeBrackets } from '@codemirror/autocomplete';
+import { defaultKeymap, history, historyKeymap } from '@codemirror/commands';
+import { bracketMatching, foldGutter, indentOnInput, indentUnit } from '@codemirror/language';
+import { searchKeymap } from '@codemirror/search';
+import { Compartment, EditorSelection, EditorState, StateEffect, StateField, type Extension } from '@codemirror/state';
+import {
+  drawSelection,
+  dropCursor,
+  EditorView,
+  highlightActiveLine,
+  highlightActiveLineGutter,
+  keymap,
+  lineNumbers,
+  scrollPastEnd,
+  showTooltip,
+  tooltips,
+  type Tooltip,
+} from '@codemirror/view';
+import { memo, useEffect, useRef, useState, type MutableRefObject } from 'react';
+import type { Theme } from '~/types/theme';
+import { classNames } from '~/utils/classNames';
+import { debounce } from '~/utils/debounce';
+import { createScopedLogger, renderLogger } from '~/utils/logger';
+import { BinaryContent } from './BinaryContent';
+import { getTheme, reconfigureTheme } from './cm-theme';
+import { indentKeyBinding } from './indent';
+import { getLanguage } from './languages';
+
+const logger = createScopedLogger('CodeMirrorEditor');
+
+export interface EditorDocument {
+  value: string;
+  isBinary: boolean;
+  filePath: string;
+  scroll?: ScrollPosition;
+}
+
+export interface EditorSettings {
+  fontSize?: string;
+  gutterFontSize?: string;
+  tabSize?: number;
+}
+
+type TextEditorDocument = EditorDocument & {
+  value: string;
+};
+
+export interface ScrollPosition {
+  top: number;
+  left: number;
+}
+
+export interface EditorUpdate {
+  selection: EditorSelection;
+  content: string;
+}
+
+export type OnChangeCallback = (update: EditorUpdate) => void;
+export type OnScrollCallback = (position: ScrollPosition) => void;
+export type OnSaveCallback = () => void;
+
+interface Props {
+  theme: Theme;
+  id?: unknown;
+  doc?: EditorDocument;
+  editable?: boolean;
+  debounceChange?: number;
+  debounceScroll?: number;
+  autoFocusOnDocumentChange?: boolean;
+  onChange?: OnChangeCallback;
+  onScroll?: OnScrollCallback;
+  onSave?: OnSaveCallback;
+  className?: string;
+  settings?: EditorSettings;
+}
+
+type EditorStates = Map<string, EditorState>;
+
+const readOnlyTooltipStateEffect = StateEffect.define<boolean>();
+
+const editableTooltipField = StateField.define<readonly Tooltip[]>({
+  create: () => [],
+  update(_tooltips, transaction) {
+    if (!transaction.state.readOnly) {
+      return [];
+    }
+
+    for (const effect of transaction.effects) {
+      if (effect.is(readOnlyTooltipStateEffect) && effect.value) {
+        return getReadOnlyTooltip(transaction.state);
+      }
+    }
+
+    return [];
+  },
+  provide: (field) => {
+    return showTooltip.computeN([field], (state) => state.field(field));
+  },
+});
+
+const editableStateEffect = StateEffect.define<boolean>();
+
+const editableStateField = StateField.define<boolean>({
+  create() {
+    return true;
+  },
+  update(value, transaction) {
+    for (const effect of transaction.effects) {
+      if (effect.is(editableStateEffect)) {
+        return effect.value;
+      }
+    }
+
+    return value;
+  },
+});
+
+export const CodeMirrorEditor = memo(
+  ({
+    id,
+    doc,
+    debounceScroll = 100,
+    debounceChange = 150,
+    autoFocusOnDocumentChange = false,
+    editable = true,
+    onScroll,
+    onChange,
+    onSave,
+    theme,
+    settings,
+    className = '',
+  }: Props) => {
+    renderLogger.trace('CodeMirrorEditor');
+
+    const [languageCompartment] = useState(new Compartment());
+
+    const containerRef = useRef<HTMLDivElement | null>(null);
+    const viewRef = useRef<EditorView>();
+    const themeRef = useRef<Theme>();
+    const docRef = useRef<EditorDocument>();
+    const editorStatesRef = useRef<EditorStates>();
+    const onScrollRef = useRef(onScroll);
+    const onChangeRef = useRef(onChange);
+    const onSaveRef = useRef(onSave);
+
+    /**
+     * This effect is used to avoid side effects directly in the render function
+     * and instead the refs are updated after each render.
+     */
+    useEffect(() => {
+      onScrollRef.current = onScroll;
+      onChangeRef.current = onChange;
+      onSaveRef.current = onSave;
+      docRef.current = doc;
+      themeRef.current = theme;
+    });
+
+    useEffect(() => {
+      const onUpdate = debounce((update: EditorUpdate) => {
+        onChangeRef.current?.(update);
+      }, debounceChange);
+
+      const view = new EditorView({
+        parent: containerRef.current!,
+        dispatchTransactions(transactions) {
+          const previousSelection = view.state.selection;
+
+          view.update(transactions);
+
+          const newSelection = view.state.selection;
+
+          const selectionChanged =
+            newSelection !== previousSelection &&
+            (newSelection === undefined || previousSelection === undefined || !newSelection.eq(previousSelection));
+
+          if (docRef.current && (transactions.some((transaction) => transaction.docChanged) || selectionChanged)) {
+            onUpdate({
+              selection: view.state.selection,
+              content: view.state.doc.toString(),
+            });
+
+            editorStatesRef.current!.set(docRef.current.filePath, view.state);
+          }
+        },
+      });
+
+      viewRef.current = view;
+
+      return () => {
+        viewRef.current?.destroy();
+        viewRef.current = undefined;
+      };
+    }, []);
+
+    useEffect(() => {
+      if (!viewRef.current) {
+        return;
+      }
+
+      viewRef.current.dispatch({
+        effects: [reconfigureTheme(theme)],
+      });
+    }, [theme]);
+
+    useEffect(() => {
+      editorStatesRef.current = new Map<string, EditorState>();
+    }, [id]);
+
+    useEffect(() => {
+      const editorStates = editorStatesRef.current!;
+      const view = viewRef.current!;
+      const theme = themeRef.current!;
+
+      if (!doc) {
+        const state = newEditorState('', theme, settings, onScrollRef, debounceScroll, onSaveRef, [
+          languageCompartment.of([]),
+        ]);
+
+        view.setState(state);
+
+        setNoDocument(view);
+
+        return;
+      }
+
+      if (doc.isBinary) {
+        return;
+      }
+
+      if (doc.filePath === '') {
+        logger.warn('File path should not be empty');
+      }
+
+      let state = editorStates.get(doc.filePath);
+
+      if (!state) {
+        state = newEditorState(doc.value, theme, settings, onScrollRef, debounceScroll, onSaveRef, [
+          languageCompartment.of([]),
+        ]);
+
+        editorStates.set(doc.filePath, state);
+      }
+
+      view.setState(state);
+
+      setEditorDocument(
+        view,
+        theme,
+        editable,
+        languageCompartment,
+        autoFocusOnDocumentChange,
+        doc as TextEditorDocument,
+      );
+    }, [doc?.value, editable, doc?.filePath, autoFocusOnDocumentChange]);
+
+    return (
+      <div className={classNames('relative h-full', className)}>
+        {doc?.isBinary && <BinaryContent />}
+        <div className="h-full overflow-hidden" ref={containerRef} />
+      </div>
+    );
+  },
+);
+
+export default CodeMirrorEditor;
+
+CodeMirrorEditor.displayName = 'CodeMirrorEditor';
+
+function newEditorState(
+  content: string,
+  theme: Theme,
+  settings: EditorSettings | undefined,
+  onScrollRef: MutableRefObject<OnScrollCallback | undefined>,
+  debounceScroll: number,
+  onFileSaveRef: MutableRefObject<OnSaveCallback | undefined>,
+  extensions: Extension[],
+) {
+  return EditorState.create({
+    doc: content,
+    extensions: [
+      EditorView.domEventHandlers({
+        scroll: debounce((event, view) => {
+          if (event.target !== view.scrollDOM) {
+            return;
+          }
+
+          onScrollRef.current?.({ left: view.scrollDOM.scrollLeft, top: view.scrollDOM.scrollTop });
+        }, debounceScroll),
+        keydown: (event, view) => {
+          if (view.state.readOnly) {
+            view.dispatch({
+              effects: [readOnlyTooltipStateEffect.of(event.key !== 'Escape')],
+            });
+
+            return true;
+          }
+
+          return false;
+        },
+      }),
+      getTheme(theme, settings),
+      history(),
+      keymap.of([
+        ...defaultKeymap,
+        ...historyKeymap,
+        ...searchKeymap,
+        { key: 'Tab', run: acceptCompletion },
+        {
+          key: 'Mod-s',
+          preventDefault: true,
+          run: () => {
+            onFileSaveRef.current?.();
+            return true;
+          },
+        },
+        indentKeyBinding,
+      ]),
+      indentUnit.of('\t'),
+      autocompletion({
+        closeOnBlur: false,
+      }),
+      tooltips({
+        position: 'absolute',
+        parent: document.body,
+        tooltipSpace: (view) => {
+          const rect = view.dom.getBoundingClientRect();
+
+          return {
+            top: rect.top - 50,
+            left: rect.left,
+            bottom: rect.bottom,
+            right: rect.right + 10,
+          };
+        },
+      }),
+      closeBrackets(),
+      lineNumbers(),
+      scrollPastEnd(),
+      dropCursor(),
+      drawSelection(),
+      bracketMatching(),
+      EditorState.tabSize.of(settings?.tabSize ?? 2),
+      indentOnInput(),
+      editableTooltipField,
+      editableStateField,
+      EditorState.readOnly.from(editableStateField, (editable) => !editable),
+      highlightActiveLineGutter(),
+      highlightActiveLine(),
+      foldGutter({
+        markerDOM: (open) => {
+          const icon = document.createElement('div');
+
+          icon.className = `fold-icon ${open ? 'i-ph-caret-down-bold' : 'i-ph-caret-right-bold'}`;
+
+          return icon;
+        },
+      }),
+      ...extensions,
+    ],
+  });
+}
+
+function setNoDocument(view: EditorView) {
+  view.dispatch({
+    selection: { anchor: 0 },
+    changes: {
+      from: 0,
+      to: view.state.doc.length,
+      insert: '',
+    },
+  });
+
+  view.scrollDOM.scrollTo(0, 0);
+}
+
+function setEditorDocument(
+  view: EditorView,
+  theme: Theme,
+  editable: boolean,
+  languageCompartment: Compartment,
+  autoFocus: boolean,
+  doc: TextEditorDocument,
+) {
+  if (doc.value !== view.state.doc.toString()) {
+    view.dispatch({
+      selection: { anchor: 0 },
+      changes: {
+        from: 0,
+        to: view.state.doc.length,
+        insert: doc.value,
+      },
+    });
+  }
+
+  view.dispatch({
+    effects: [editableStateEffect.of(editable && !doc.isBinary)],
+  });
+
+  getLanguage(doc.filePath).then((languageSupport) => {
+    if (!languageSupport) {
+      return;
+    }
+
+    view.dispatch({
+      effects: [languageCompartment.reconfigure([languageSupport]), reconfigureTheme(theme)],
+    });
+
+    requestAnimationFrame(() => {
+      const currentLeft = view.scrollDOM.scrollLeft;
+      const currentTop = view.scrollDOM.scrollTop;
+      const newLeft = doc.scroll?.left ?? 0;
+      const newTop = doc.scroll?.top ?? 0;
+
+      const needsScrolling = currentLeft !== newLeft || currentTop !== newTop;
+
+      if (autoFocus && editable) {
+        if (needsScrolling) {
+          // we have to wait until the scroll position was changed before we can set the focus
+          view.scrollDOM.addEventListener(
+            'scroll',
+            () => {
+              view.focus();
+            },
+            { once: true },
+          );
+        } else {
+          // if the scroll position is still the same we can focus immediately
+          view.focus();
+        }
+      }
+
+      view.scrollDOM.scrollTo(newLeft, newTop);
+    });
+  });
+}
+
+function getReadOnlyTooltip(state: EditorState) {
+  if (!state.readOnly) {
+    return [];
+  }
+
+  return state.selection.ranges
+    .filter((range) => {
+      return range.empty;
+    })
+    .map((range) => {
+      return {
+        pos: range.head,
+        above: true,
+        strictSide: true,
+        arrow: true,
+        create: () => {
+          const divElement = document.createElement('div');
+          divElement.className = 'cm-readonly-tooltip';
+          divElement.textContent = 'Cannot edit file while AI response is being generated';
+
+          return { dom: divElement };
+        },
+      };
+    });
+}

app/components/editor/codemirror/cm-theme.ts

@@ -0,0 +1,192 @@
+import { Compartment, type Extension } from '@codemirror/state';
+import { EditorView } from '@codemirror/view';
+import { vscodeDark, vscodeLight } from '@uiw/codemirror-theme-vscode';
+import type { Theme } from '~/types/theme.js';
+import type { EditorSettings } from './CodeMirrorEditor.js';
+
+export const darkTheme = EditorView.theme({}, { dark: true });
+export const themeSelection = new Compartment();
+
+export function getTheme(theme: Theme, settings: EditorSettings = {}): Extension {
+  return [
+    getEditorTheme(settings),
+    theme === 'dark' ? themeSelection.of([getDarkTheme()]) : themeSelection.of([getLightTheme()]),
+  ];
+}
+
+export function reconfigureTheme(theme: Theme) {
+  return themeSelection.reconfigure(theme === 'dark' ? getDarkTheme() : getLightTheme());
+}
+
+function getEditorTheme(settings: EditorSettings) {
+  return EditorView.theme({
+    '&': {
+      fontSize: settings.fontSize ?? '12px',
+    },
+    '&.cm-editor': {
+      height: '100%',
+      background: 'var(--cm-backgroundColor)',
+      color: 'var(--cm-textColor)',
+    },
+    '.cm-cursor': {
+      borderLeft: 'var(--cm-cursor-width) solid var(--cm-cursor-backgroundColor)',
+    },
+    '.cm-scroller': {
+      lineHeight: '1.5',
+      '&:focus-visible': {
+        outline: 'none',
+      },
+    },
+    '.cm-line': {
+      padding: '0 0 0 4px',
+    },
+    '&.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground': {
+      backgroundColor: 'var(--cm-selection-backgroundColorFocused) !important',
+      opacity: 'var(--cm-selection-backgroundOpacityFocused, 0.3)',
+    },
+    '&:not(.cm-focused) > .cm-scroller > .cm-selectionLayer .cm-selectionBackground': {
+      backgroundColor: 'var(--cm-selection-backgroundColorBlured)',
+      opacity: 'var(--cm-selection-backgroundOpacityBlured, 0.3)',
+    },
+    '&.cm-focused > .cm-scroller .cm-matchingBracket': {
+      backgroundColor: 'var(--cm-matching-bracket)',
+    },
+    '.cm-activeLine': {
+      background: 'var(--cm-activeLineBackgroundColor)',
+    },
+    '.cm-gutters': {
+      background: 'var(--cm-gutter-backgroundColor)',
+      borderRight: 0,
+      color: 'var(--cm-gutter-textColor)',
+    },
+    '.cm-gutter': {
+      '&.cm-lineNumbers': {
+        fontFamily: 'Roboto Mono, monospace',
+        fontSize: settings.gutterFontSize ?? settings.fontSize ?? '12px',
+        minWidth: '40px',
+      },
+      '& .cm-activeLineGutter': {
+        background: 'transparent',
+        color: 'var(--cm-gutter-activeLineTextColor)',
+      },
+      '&.cm-foldGutter .cm-gutterElement > .fold-icon': {
+        cursor: 'pointer',
+        color: 'var(--cm-foldGutter-textColor)',
+        transform: 'translateY(2px)',
+        '&:hover': {
+          color: 'var(--cm-foldGutter-textColorHover)',
+        },
+      },
+    },
+    '.cm-foldGutter .cm-gutterElement': {
+      padding: '0 4px',
+    },
+    '.cm-tooltip-autocomplete > ul > li': {
+      minHeight: '18px',
+    },
+    '.cm-panel.cm-search label': {
+      marginLeft: '2px',
+      fontSize: '12px',
+    },
+    '.cm-panel.cm-search .cm-button': {
+      fontSize: '12px',
+    },
+    '.cm-panel.cm-search .cm-textfield': {
+      fontSize: '12px',
+    },
+    '.cm-panel.cm-search input[type=checkbox]': {
+      position: 'relative',
+      transform: 'translateY(2px)',
+      marginRight: '4px',
+    },
+    '.cm-panels': {
+      borderColor: 'var(--cm-panels-borderColor)',
+    },
+    '.cm-panels-bottom': {
+      borderTop: '1px solid var(--cm-panels-borderColor)',
+      backgroundColor: 'transparent',
+    },
+    '.cm-panel.cm-search': {
+      background: 'var(--cm-search-backgroundColor)',
+      color: 'var(--cm-search-textColor)',
+      padding: '8px',
+    },
+    '.cm-search .cm-button': {
+      background: 'var(--cm-search-button-backgroundColor)',
+      borderColor: 'var(--cm-search-button-borderColor)',
+      color: 'var(--cm-search-button-textColor)',
+      borderRadius: '4px',
+      '&:hover': {
+        color: 'var(--cm-search-button-textColorHover)',
+      },
+      '&:focus-visible': {
+        outline: 'none',
+        borderColor: 'var(--cm-search-button-borderColorFocused)',
+      },
+      '&:hover:not(:focus-visible)': {
+        background: 'var(--cm-search-button-backgroundColorHover)',
+        borderColor: 'var(--cm-search-button-borderColorHover)',
+      },
+      '&:hover:focus-visible': {
+        background: 'var(--cm-search-button-backgroundColorHover)',
+        borderColor: 'var(--cm-search-button-borderColorFocused)',
+      },
+    },
+    '.cm-panel.cm-search [name=close]': {
+      top: '6px',
+      right: '6px',
+      padding: '0 6px',
+      fontSize: '1rem',
+      backgroundColor: 'var(--cm-search-closeButton-backgroundColor)',
+      color: 'var(--cm-search-closeButton-textColor)',
+      '&:hover': {
+        'border-radius': '6px',
+        color: 'var(--cm-search-closeButton-textColorHover)',
+        backgroundColor: 'var(--cm-search-closeButton-backgroundColorHover)',
+      },
+    },
+    '.cm-search input': {
+      background: 'var(--cm-search-input-backgroundColor)',
+      borderColor: 'var(--cm-search-input-borderColor)',
+      color: 'var(--cm-search-input-textColor)',
+      outline: 'none',
+      borderRadius: '4px',
+      '&:focus-visible': {
+        borderColor: 'var(--cm-search-input-borderColorFocused)',
+      },
+    },
+    '.cm-tooltip': {
+      background: 'var(--cm-tooltip-backgroundColor)',
+      border: '1px solid transparent',
+      borderColor: 'var(--cm-tooltip-borderColor)',
+      color: 'var(--cm-tooltip-textColor)',
+    },
+    '.cm-tooltip.cm-tooltip-autocomplete ul li[aria-selected]': {
+      background: 'var(--cm-tooltip-backgroundColorSelected)',
+      color: 'var(--cm-tooltip-textColorSelected)',
+    },
+    '.cm-searchMatch': {
+      backgroundColor: 'var(--cm-searchMatch-backgroundColor)',
+    },
+    '.cm-tooltip.cm-readonly-tooltip': {
+      padding: '4px',
+      whiteSpace: 'nowrap',
+      backgroundColor: 'var(--bolt-elements-bg-depth-2)',
+      borderColor: 'var(--bolt-elements-borderColorActive)',
+      '& .cm-tooltip-arrow:before': {
+        borderTopColor: 'var(--bolt-elements-borderColorActive)',
+      },
+      '& .cm-tooltip-arrow:after': {
+        borderTopColor: 'transparent',
+      },
+    },
+  });
+}
+
+function getLightTheme() {
+  return vscodeLight;
+}
+
+function getDarkTheme() {
+  return vscodeDark;
+}

app/components/editor/codemirror/indent.ts

@@ -0,0 +1,68 @@
+import { indentLess } from '@codemirror/commands';
+import { indentUnit } from '@codemirror/language';
+import { EditorSelection, EditorState, Line, type ChangeSpec } from '@codemirror/state';
+import { EditorView, type KeyBinding } from '@codemirror/view';
+
+export const indentKeyBinding: KeyBinding = {
+  key: 'Tab',
+  run: indentMore,
+  shift: indentLess,
+};
+
+function indentMore({ state, dispatch }: EditorView) {
+  if (state.readOnly) {
+    return false;
+  }
+
+  dispatch(
+    state.update(
+      changeBySelectedLine(state, (from, to, changes) => {
+        changes.push({ from, to, insert: state.facet(indentUnit) });
+      }),
+      { userEvent: 'input.indent' },
+    ),
+  );
+
+  return true;
+}
+
+function changeBySelectedLine(
+  state: EditorState,
+  cb: (from: number, to: number | undefined, changes: ChangeSpec[], line: Line) => void,
+) {
+  return state.changeByRange((range) => {
+    const changes: ChangeSpec[] = [];
+
+    const line = state.doc.lineAt(range.from);
+
+    // just insert single indent unit at the current cursor position
+    if (range.from === range.to) {
+      cb(range.from, undefined, changes, line);
+    }
+    // handle the case when multiple characters are selected in a single line
+    else if (range.from < range.to && range.to <= line.to) {
+      cb(range.from, range.to, changes, line);
+    } else {
+      let atLine = -1;
+
+      // handle the case when selection spans multiple lines
+      for (let pos = range.from; pos <= range.to; ) {
+        const line = state.doc.lineAt(pos);
+
+        if (line.number > atLine && (range.empty || range.to > line.from)) {
+          cb(line.from, undefined, changes, line);
+          atLine = line.number;
+        }
+
+        pos = line.to + 1;
+      }
+    }
+
+    const changeSet = state.changes(changes);
+
+    return {
+      changes,
+      range: EditorSelection.range(changeSet.mapPos(range.anchor, 1), changeSet.mapPos(range.head, 1)),
+    };
+  });
+}

app/components/editor/codemirror/languages.ts

@@ -0,0 +1,105 @@
+import { LanguageDescription } from '@codemirror/language';
+
+export const supportedLanguages = [
+  LanguageDescription.of({
+    name: 'TS',
+    extensions: ['ts'],
+    async load() {
+      return import('@codemirror/lang-javascript').then((module) => module.javascript({ typescript: true }));
+    },
+  }),
+  LanguageDescription.of({
+    name: 'JS',
+    extensions: ['js', 'mjs', 'cjs'],
+    async load() {
+      return import('@codemirror/lang-javascript').then((module) => module.javascript());
+    },
+  }),
+  LanguageDescription.of({
+    name: 'TSX',
+    extensions: ['tsx'],
+    async load() {
+      return import('@codemirror/lang-javascript').then((module) => module.javascript({ jsx: true, typescript: true }));
+    },
+  }),
+  LanguageDescription.of({
+    name: 'JSX',
+    extensions: ['jsx'],
+    async load() {
+      return import('@codemirror/lang-javascript').then((module) => module.javascript({ jsx: true }));
+    },
+  }),
+  LanguageDescription.of({
+    name: 'HTML',
+    extensions: ['html'],
+    async load() {
+      return import('@codemirror/lang-html').then((module) => module.html());
+    },
+  }),
+  LanguageDescription.of({
+    name: 'CSS',
+    extensions: ['css'],
+    async load() {
+      return import('@codemirror/lang-css').then((module) => module.css());
+    },
+  }),
+  LanguageDescription.of({
+    name: 'SASS',
+    extensions: ['sass'],
+    async load() {
+      return import('@codemirror/lang-sass').then((module) => module.sass({ indented: true }));
+    },
+  }),
+  LanguageDescription.of({
+    name: 'SCSS',
+    extensions: ['scss'],
+    async load() {
+      return import('@codemirror/lang-sass').then((module) => module.sass({ indented: false }));
+    },
+  }),
+  LanguageDescription.of({
+    name: 'JSON',
+    extensions: ['json'],
+    async load() {
+      return import('@codemirror/lang-json').then((module) => module.json());
+    },
+  }),
+  LanguageDescription.of({
+    name: 'Markdown',
+    extensions: ['md'],
+    async load() {
+      return import('@codemirror/lang-markdown').then((module) => module.markdown());
+    },
+  }),
+  LanguageDescription.of({
+    name: 'Wasm',
+    extensions: ['wat'],
+    async load() {
+      return import('@codemirror/lang-wast').then((module) => module.wast());
+    },
+  }),
+  LanguageDescription.of({
+    name: 'Python',
+    extensions: ['py'],
+    async load() {
+      return import('@codemirror/lang-python').then((module) => module.python());
+    },
+  }),
+  LanguageDescription.of({
+    name: 'C++',
+    extensions: ['cpp'],
+    async load() {
+      return import('@codemirror/lang-cpp').then((module) => module.cpp());
+    },
+  }),
+];
+
+export async function getLanguage(fileName: string) {
+  const languageDescription = LanguageDescription.matchFilename(supportedLanguages, fileName);
+
+  if (languageDescription) {
+    return await languageDescription.load();
+  }
+
+  return undefined;
+}

app/components/header/Header.tsx

@@ -0,0 +1,41 @@
+import { useStore } from '@nanostores/react';
+import { ClientOnly } from 'remix-utils/client-only';
+import { chatStore } from '~/lib/stores/chat';
+import { classNames } from '~/utils/classNames';
+import { HeaderActionButtons } from './HeaderActionButtons.client';
+import { ChatDescription } from '~/lib/persistence/ChatDescription.client';
+
+export function Header() {
+  const chat = useStore(chatStore);
+
+  return (
+    <header
+      className={classNames(
+        'flex items-center bg-bolt-elements-background-depth-1 p-5 border-b h-[var(--header-height)]',
+        {
+          'border-transparent': !chat.started,
+          'border-bolt-elements-borderColor': chat.started,
+        },
+      )}
+    >
+      <div className="flex items-center gap-2 z-logo text-bolt-elements-textPrimary cursor-pointer">
+        <div className="i-ph:sidebar-simple-duotone text-xl" />
+        <a href="/" className="text-2xl font-semibold text-accent flex items-center">
+          <span className="i-bolt:logo-text?mask w-[46px] inline-block" />
+        </a>
+      </div>
+      <span className="flex-1 px-4 truncate text-center text-bolt-elements-textPrimary">
+        <ClientOnly>{() => <ChatDescription />}</ClientOnly>
+      </span>
+      {chat.started && (
+        <ClientOnly>
+          {() => (
+            <div className="mr-1">
+              <HeaderActionButtons />
+            </div>
+          )}
+        </ClientOnly>
+      )}
+    </header>
+  );
+}

app/components/header/HeaderActionButtons.client.tsx

@@ -0,0 +1,68 @@
+import { useStore } from '@nanostores/react';
+import { chatStore } from '~/lib/stores/chat';
+import { workbenchStore } from '~/lib/stores/workbench';
+import { classNames } from '~/utils/classNames';
+
+interface HeaderActionButtonsProps {}
+
+export function HeaderActionButtons({}: HeaderActionButtonsProps) {
+  const showWorkbench = useStore(workbenchStore.showWorkbench);
+  const { showChat } = useStore(chatStore);
+
+  const canHideChat = showWorkbench || !showChat;
+
+  return (
+    <div className="flex">
+      <div className="flex border border-bolt-elements-borderColor rounded-md overflow-hidden">
+        <Button
+          active={showChat}
+          disabled={!canHideChat}
+          onClick={() => {
+            if (canHideChat) {
+              chatStore.setKey('showChat', !showChat);
+            }
+          }}
+        >
+          <div className="i-bolt:chat text-sm" />
+        </Button>
+        <div className="w-[1px] bg-bolt-elements-borderColor" />
+        <Button
+          active={showWorkbench}
+          onClick={() => {
+            if (showWorkbench && !showChat) {
+              chatStore.setKey('showChat', true);
+            }
+
+            workbenchStore.showWorkbench.set(!showWorkbench);
+          }}
+        >
+          <div className="i-ph:code-bold" />
+        </Button>
+      </div>
+    </div>
+  );
+}
+
+interface ButtonProps {
+  active?: boolean;
+  disabled?: boolean;
+  children?: any;
+  onClick?: VoidFunction;
+}
+
+function Button({ active = false, disabled = false, children, onClick }: ButtonProps) {
+  return (
+    <button
+      className={classNames('flex items-center p-1.5', {
+        'bg-bolt-elements-item-backgroundDefault hover:bg-bolt-elements-item-backgroundActive text-bolt-elements-textTertiary hover:text-bolt-elements-textPrimary':
+          !active,
+        'bg-bolt-elements-item-backgroundAccent text-bolt-elements-item-contentAccent': active && !disabled,
+        'bg-bolt-elements-item-backgroundDefault text-alpha-gray-20 dark:text-alpha-white-20 cursor-not-allowed':
+          disabled,
+      })}
+      onClick={onClick}
+    >
+      {children}
+    </button>
+  );
+}

app/components/sidebar/HistoryItem.tsx

@@ -0,0 +1,64 @@
+import * as Dialog from '@radix-ui/react-dialog';
+import { useEffect, useRef, useState } from 'react';
+import { type ChatHistoryItem } from '~/lib/persistence';
+
+interface HistoryItemProps {
+  item: ChatHistoryItem;
+  onDelete?: (event: React.UIEvent) => void;
+}
+
+export function HistoryItem({ item, onDelete }: HistoryItemProps) {
+  const [hovering, setHovering] = useState(false);
+  const hoverRef = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    let timeout: NodeJS.Timeout | undefined;
+
+    function mouseEnter() {
+      setHovering(true);
+
+      if (timeout) {
+        clearTimeout(timeout);
+      }
+    }
+
+    function mouseLeave() {
+      setHovering(false);
+    }
+
+    hoverRef.current?.addEventListener('mouseenter', mouseEnter);
+    hoverRef.current?.addEventListener('mouseleave', mouseLeave);
+
+    return () => {
+      hoverRef.current?.removeEventListener('mouseenter', mouseEnter);
+      hoverRef.current?.removeEventListener('mouseleave', mouseLeave);
+    };
+  }, []);
+
+  return (
+    <div
+      ref={hoverRef}
+      className="group rounded-md text-bolt-elements-textSecondary hover:text-bolt-elements-textPrimary hover:bg-bolt-elements-background-depth-3 overflow-hidden flex justify-between items-center px-2 py-1"
+    >
+      <a href={`/chat/${item.urlId}`} className="flex w-full relative truncate block">
+        {item.description}
+        <div className="absolute right-0 z-1 top-0 bottom-0 bg-gradient-to-l from-bolt-elements-background-depth-2 group-hover:from-bolt-elements-background-depth-3 to-transparent w-10 flex justify-end group-hover:w-15 group-hover:from-45%">
+          {hovering && (
+            <div className="flex items-center p-1 text-bolt-elements-textSecondary hover:text-bolt-elements-item-contentDanger">
+              <Dialog.Trigger asChild>
+                <button
+                  className="i-ph:trash scale-110"
+                  onClick={(event) => {
+                    // we prevent the default so we don't trigger the anchor above
+                    event.preventDefault();
+                    onDelete?.(event);
+                  }}
+                />
+              </Dialog.Trigger>
+            </div>
+          )}
+        </div>
+      </a>
+    </div>
+  );
+}

app/components/sidebar/Menu.client.tsx

@@ -0,0 +1,172 @@
+import { motion, type Variants } from 'framer-motion';
+import { useCallback, useEffect, useRef, useState } from 'react';
+import { toast } from 'react-toastify';
+import { Dialog, DialogButton, DialogDescription, DialogRoot, DialogTitle } from '~/components/ui/Dialog';
+import { IconButton } from '~/components/ui/IconButton';
+import { ThemeSwitch } from '~/components/ui/ThemeSwitch';
+import { db, deleteById, getAll, chatId, type ChatHistoryItem } from '~/lib/persistence';
+import { cubicEasingFn } from '~/utils/easings';
+import { logger } from '~/utils/logger';
+import { HistoryItem } from './HistoryItem';
+import { binDates } from './date-binning';
+
+const menuVariants = {
+  closed: {
+    opacity: 0,
+    visibility: 'hidden',
+    left: '-150px',
+    transition: {
+      duration: 0.2,
+      ease: cubicEasingFn,
+    },
+  },
+  open: {
+    opacity: 1,
+    visibility: 'initial',
+    left: 0,
+    transition: {
+      duration: 0.2,
+      ease: cubicEasingFn,
+    },
+  },
+} satisfies Variants;
+
+type DialogContent = { type: 'delete'; item: ChatHistoryItem } | null;
+
+export function Menu() {
+  const menuRef = useRef<HTMLDivElement>(null);
+  const [list, setList] = useState<ChatHistoryItem[]>([]);
+  const [open, setOpen] = useState(false);
+  const [dialogContent, setDialogContent] = useState<DialogContent>(null);
+
+  const loadEntries = useCallback(() => {
+    if (db) {
+      getAll(db)
+        .then((list) => list.filter((item) => item.urlId && item.description))
+        .then(setList)
+        .catch((error) => toast.error(error.message));
+    }
+  }, []);
+
+  const deleteItem = useCallback((event: React.UIEvent, item: ChatHistoryItem) => {
+    event.preventDefault();
+
+    if (db) {
+      deleteById(db, item.id)
+        .then(() => {
+          loadEntries();
+
+          if (chatId.get() === item.id) {
+            // hard page navigation to clear the stores
+            window.location.pathname = '/';
+          }
+        })
+        .catch((error) => {
+          toast.error('Failed to delete conversation');
+          logger.error(error);
+        });
+    }
+  }, []);
+
+  const closeDialog = () => {
+    setDialogContent(null);
+  };
+
+  useEffect(() => {
+    if (open) {
+      loadEntries();
+    }
+  }, [open]);
+
+  useEffect(() => {
+    const enterThreshold = 40;
+    const exitThreshold = 40;
+
+    function onMouseMove(event: MouseEvent) {
+      if (event.pageX < enterThreshold) {
+        setOpen(true);
+      }
+
+      if (menuRef.current && event.clientX > menuRef.current.getBoundingClientRect().right + exitThreshold) {
+        setOpen(false);
+      }
+    }
+
+    window.addEventListener('mousemove', onMouseMove);
+
+    return () => {
+      window.removeEventListener('mousemove', onMouseMove);
+    };
+  }, []);
+
+  return (
+    <motion.div
+      ref={menuRef}
+      initial="closed"
+      animate={open ? 'open' : 'closed'}
+      variants={menuVariants}
+      className="flex flex-col side-menu fixed top-0 w-[350px] h-full bg-bolt-elements-background-depth-2 border-r rounded-r-3xl border-bolt-elements-borderColor z-sidebar shadow-xl shadow-bolt-elements-sidebar-dropdownShadow text-sm"
+    >
+      <div className="flex items-center h-[var(--header-height)]">{/* Placeholder */}</div>
+      <div className="flex-1 flex flex-col h-full w-full overflow-hidden">
+        <div className="p-4">
+          <a
+            href="/"
+            className="flex gap-2 items-center bg-bolt-elements-sidebar-buttonBackgroundDefault text-bolt-elements-sidebar-buttonText hover:bg-bolt-elements-sidebar-buttonBackgroundHover rounded-md p-2 transition-theme"
+          >
+            <span className="inline-block i-bolt:chat scale-110" />
+            Start new chat
+          </a>
+        </div>
+        <div className="text-bolt-elements-textPrimary font-medium pl-6 pr-5 my-2">Your Chats</div>
+        <div className="flex-1 overflow-scroll pl-4 pr-5 pb-5">
+          {list.length === 0 && <div className="pl-2 text-bolt-elements-textTertiary">No previous conversations</div>}
+          <DialogRoot open={dialogContent !== null}>
+            {binDates(list).map(({ category, items }) => (
+              <div key={category} className="mt-4 first:mt-0 space-y-1">
+                <div className="text-bolt-elements-textTertiary sticky top-0 z-1 bg-bolt-elements-background-depth-2 pl-2 pt-2 pb-1">
+                  {category}
+                </div>
+                {items.map((item) => (
+                  <HistoryItem key={item.id} item={item} onDelete={() => setDialogContent({ type: 'delete', item })} />
+                ))}
+              </div>
+            ))}
+            <Dialog onBackdrop={closeDialog} onClose={closeDialog}>
+              {dialogContent?.type === 'delete' && (
+                <>
+                  <DialogTitle>Delete Chat?</DialogTitle>
+                  <DialogDescription asChild>
+                    <div>
+                      <p>
+                        You are about to delete <strong>{dialogContent.item.description}</strong>.
+                      </p>
+                      <p className="mt-1">Are you sure you want to delete this chat?</p>
+                    </div>
+                  </DialogDescription>
+                  <div className="px-5 pb-4 bg-bolt-elements-background-depth-2 flex gap-2 justify-end">
+                    <DialogButton type="secondary" onClick={closeDialog}>
+                      Cancel
+                    </DialogButton>
+                    <DialogButton
+                      type="danger"
+                      onClick={(event) => {
+                        deleteItem(event, dialogContent.item);
+                        closeDialog();
+                      }}
+                    >
+                      Delete
+                    </DialogButton>
+                  </div>
+                </>
+              )}
+            </Dialog>
+          </DialogRoot>
+        </div>
+        <div className="flex items-center border-t border-bolt-elements-borderColor p-4">
+          <ThemeSwitch className="ml-auto" />
+        </div>
+      </div>
+    </motion.div>
+  );
+}

app/components/sidebar/date-binning.ts

@@ -0,0 +1,59 @@
+import { format, isAfter, isThisWeek, isThisYear, isToday, isYesterday, subDays } from 'date-fns';
+import type { ChatHistoryItem } from '~/lib/persistence';
+
+type Bin = { category: string; items: ChatHistoryItem[] };
+
+export function binDates(_list: ChatHistoryItem[]) {
+  const list = _list.toSorted((a, b) => Date.parse(b.timestamp) - Date.parse(a.timestamp));
+
+  const binLookup: Record<string, Bin> = {};
+  const bins: Array<Bin> = [];
+
+  list.forEach((item) => {
+    const category = dateCategory(new Date(item.timestamp));
+
+    if (!(category in binLookup)) {
+      const bin = {
+        category,
+        items: [item],
+      };
+
+      binLookup[category] = bin;
+
+      bins.push(bin);
+    } else {
+      binLookup[category].items.push(item);
+    }
+  });
+
+  return bins;
+}
+
+function dateCategory(date: Date) {
+  if (isToday(date)) {
+    return 'Today';
+  }
+
+  if (isYesterday(date)) {
+    return 'Yesterday';
+  }
+
+  if (isThisWeek(date)) {
+    // e.g., "Monday"
+    return format(date, 'eeee');
+  }
+
+  const thirtyDaysAgo = subDays(new Date(), 30);
+
+  if (isAfter(date, thirtyDaysAgo)) {
+    return 'Last 30 Days';
+  }
+
+  if (isThisYear(date)) {
+    // e.g., "July"
+    return format(date, 'MMMM');
+  }
+
+  // e.g., "July 2023"
+  return format(date, 'MMMM yyyy');
+}

app/components/ui/Dialog.tsx

@@ -0,0 +1,133 @@
+import * as RadixDialog from '@radix-ui/react-dialog';
+import { motion, type Variants } from 'framer-motion';
+import React, { memo, type ReactNode } from 'react';
+import { classNames } from '~/utils/classNames';
+import { cubicEasingFn } from '~/utils/easings';
+import { IconButton } from './IconButton';
+
+export { Close as DialogClose, Root as DialogRoot } from '@radix-ui/react-dialog';
+
+const transition = {
+  duration: 0.15,
+  ease: cubicEasingFn,
+};
+
+export const dialogBackdropVariants = {
+  closed: {
+    opacity: 0,
+    transition,
+  },
+  open: {
+    opacity: 1,
+    transition,
+  },
+} satisfies Variants;
+
+export const dialogVariants = {
+  closed: {
+    x: '-50%',
+    y: '-40%',
+    scale: 0.96,
+    opacity: 0,
+    transition,
+  },
+  open: {
+    x: '-50%',
+    y: '-50%',
+    scale: 1,
+    opacity: 1,
+    transition,
+  },
+} satisfies Variants;
+
+interface DialogButtonProps {
+  type: 'primary' | 'secondary' | 'danger';
+  children: ReactNode;
+  onClick?: (event: React.UIEvent) => void;
+}
+
+export const DialogButton = memo(({ type, children, onClick }: DialogButtonProps) => {
+  return (
+    <button
+      className={classNames(
+        'inline-flex h-[35px] items-center justify-center rounded-lg px-4 text-sm leading-none focus:outline-none',
+        {
+          'bg-bolt-elements-button-primary-background text-bolt-elements-button-primary-text hover:bg-bolt-elements-button-primary-backgroundHover':
+            type === 'primary',
+          'bg-bolt-elements-button-secondary-background text-bolt-elements-button-secondary-text hover:bg-bolt-elements-button-secondary-backgroundHover':
+            type === 'secondary',
+          'bg-bolt-elements-button-danger-background text-bolt-elements-button-danger-text hover:bg-bolt-elements-button-danger-backgroundHover':
+            type === 'danger',
+        },
+      )}
+      onClick={onClick}
+    >
+      {children}
+    </button>
+  );
+});
+
+export const DialogTitle = memo(({ className, children, ...props }: RadixDialog.DialogTitleProps) => {
+  return (
+    <RadixDialog.Title
+      className={classNames(
+        'px-5 py-4 flex items-center justify-between border-b border-bolt-elements-borderColor text-lg font-semibold leading-6 text-bolt-elements-textPrimary',
+        className,
+      )}
+      {...props}
+    >
+      {children}
+    </RadixDialog.Title>
+  );
+});
+
+export const DialogDescription = memo(({ className, children, ...props }: RadixDialog.DialogDescriptionProps) => {
+  return (
+    <RadixDialog.Description
+      className={classNames('px-5 py-4 text-bolt-elements-textPrimary text-md', className)}
+      {...props}
+    >
+      {children}
+    </RadixDialog.Description>
+  );
+});
+
+interface DialogProps {
+  children: ReactNode | ReactNode[];
+  className?: string;
+  onBackdrop?: (event: React.UIEvent) => void;
+  onClose?: (event: React.UIEvent) => void;
+}
+
+export const Dialog = memo(({ className, children, onBackdrop, onClose }: DialogProps) => {
+  return (
+    <RadixDialog.Portal>
+      <RadixDialog.Overlay onClick={onBackdrop} asChild>
+        <motion.div
+          className="bg-black/50 fixed inset-0 z-max"
+          initial="closed"
+          animate="open"
+          exit="closed"
+          variants={dialogBackdropVariants}
+        />
+      </RadixDialog.Overlay>
+      <RadixDialog.Content asChild>
+        <motion.div
+          className={classNames(
+            'fixed top-[50%] left-[50%] z-max max-h-[85vh] w-[90vw] max-w-[450px] translate-x-[-50%] translate-y-[-50%] border border-bolt-elements-borderColor rounded-lg bg-bolt-elements-background-depth-2 shadow-lg focus:outline-none overflow-hidden',
+            className,
+          )}
+          initial="closed"
+          animate="open"
+          exit="closed"
+          variants={dialogVariants}
+        >
+          {children}
+          <RadixDialog.Close asChild onClick={onClose}>
+            <IconButton icon="i-ph:x" className="absolute top-[10px] right-[10px]" />
+          </RadixDialog.Close>
+        </motion.div>
+      </RadixDialog.Content>
+    </RadixDialog.Portal>
+  );
+});

app/components/ui/IconButton.tsx

@@ -0,0 +1,77 @@
+import { memo } from 'react';
+import { classNames } from '~/utils/classNames';
+
+type IconSize = 'sm' | 'md' | 'lg' | 'xl' | 'xxl';
+
+interface BaseIconButtonProps {
+  size?: IconSize;
+  className?: string;
+  iconClassName?: string;
+  disabledClassName?: string;
+  title?: string;
+  disabled?: boolean;
+  onClick?: (event: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
+}
+
+type IconButtonWithoutChildrenProps = {
+  icon: string;
+  children?: undefined;
+} & BaseIconButtonProps;
+
+type IconButtonWithChildrenProps = {
+  icon?: undefined;
+  children: string | JSX.Element | JSX.Element[];
+} & BaseIconButtonProps;
+
+type IconButtonProps = IconButtonWithoutChildrenProps | IconButtonWithChildrenProps;
+
+export const IconButton = memo(
+  ({
+    icon,
+    size = 'xl',
+    className,
+    iconClassName,
+    disabledClassName,
+    disabled = false,
+    title,
+    onClick,
+    children,
+  }: IconButtonProps) => {
+    return (
+      <button
+        className={classNames(
+          'flex items-center text-bolt-elements-item-contentDefault bg-transparent enabled:hover:text-bolt-elements-item-contentActive rounded-md p-1 enabled:hover:bg-bolt-elements-item-backgroundActive disabled:cursor-not-allowed',
+          {
+            [classNames('opacity-30', disabledClassName)]: disabled,
+          },
+          className,
+        )}
+        title={title}
+        disabled={disabled}
+        onClick={(event) => {
+          if (disabled) {
+            return;
+          }
+
+          onClick?.(event);
+        }}
+      >
+        {children ? children : <div className={classNames(icon, getIconSize(size), iconClassName)}></div>}
+      </button>
+    );
+  },
+);
+
+function getIconSize(size: IconSize) {
+  if (size === 'sm') {
+    return 'text-sm';
+  } else if (size === 'md') {
+    return 'text-md';
+  } else if (size === 'lg') {
+    return 'text-lg';
+  } else if (size === 'xl') {
+    return 'text-xl';
+  } else {
+    return 'text-2xl';
+  }
+}

app/components/ui/LoadingDots.tsx

@@ -0,0 +1,27 @@
+import { memo, useEffect, useState } from 'react';
+
+interface LoadingDotsProps {
+  text: string;
+}
+
+export const LoadingDots = memo(({ text }: LoadingDotsProps) => {
+  const [dotCount, setDotCount] = useState(0);
+
+  useEffect(() => {
+    const interval = setInterval(() => {
+      setDotCount((prevDotCount) => (prevDotCount + 1) % 4);
+    }, 500);
+
+    return () => clearInterval(interval);
+  }, []);
+
+  return (
+    <div className="flex justify-center items-center h-full">
+      <div className="relative">
+        <span>{text}</span>
+        <span className="absolute left-[calc(100%-12px)]">{'.'.repeat(dotCount)}</span>
+        <span className="invisible">...</span>
+      </div>
+    </div>
+  );
+});

app/components/ui/PanelHeader.tsx

@@ -0,0 +1,20 @@
+import { memo } from 'react';
+import { classNames } from '~/utils/classNames';
+
+interface PanelHeaderProps {
+  className?: string;
+  children: React.ReactNode;
+}
+
+export const PanelHeader = memo(({ className, children }: PanelHeaderProps) => {
+  return (
+    <div
+      className={classNames(
+        'flex items-center gap-2 bg-bolt-elements-background-depth-2 text-bolt-elements-textSecondary border-b border-bolt-elements-borderColor px-4 py-1 min-h-[34px] text-sm',
+        className,
+      )}
+    >
+      {children}
+    </div>
+  );
+});

app/components/ui/PanelHeaderButton.tsx

@@ -0,0 +1,36 @@
+import { memo } from 'react';
+import { classNames } from '~/utils/classNames';
+
+interface PanelHeaderButtonProps {
+  className?: string;
+  disabledClassName?: string;
+  disabled?: boolean;
+  children: string | JSX.Element | Array<JSX.Element | string>;
+  onClick?: (event: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
+}
+
+export const PanelHeaderButton = memo(
+  ({ className, disabledClassName, disabled = false, children, onClick }: PanelHeaderButtonProps) => {
+    return (
+      <button
+        className={classNames(
+          'flex items-center shrink-0 gap-1.5 px-1.5 rounded-md py-0.5 text-bolt-elements-item-contentDefault bg-transparent enabled:hover:text-bolt-elements-item-contentActive enabled:hover:bg-bolt-elements-item-backgroundActive disabled:cursor-not-allowed',
+          {
+            [classNames('opacity-30', disabledClassName)]: disabled,
+          },
+          className,
+        )}
+        disabled={disabled}
+        onClick={(event) => {
+          if (disabled) {
+            return;
+          }
+
+          onClick?.(event);
+        }}
+      >
+        {children}
+      </button>
+    );
+  },
+);

app/components/ui/Slider.tsx

@@ -0,0 +1,65 @@
+import { motion } from 'framer-motion';
+import { memo } from 'react';
+import { classNames } from '~/utils/classNames';
+import { cubicEasingFn } from '~/utils/easings';
+import { genericMemo } from '~/utils/react';
+
+interface SliderOption<T> {
+  value: T;
+  text: string;
+}
+
+export interface SliderOptions<T> {
+  left: SliderOption<T>;
+  right: SliderOption<T>;
+}
+
+interface SliderProps<T> {
+  selected: T;
+  options: SliderOptions<T>;
+  setSelected?: (selected: T) => void;
+}
+
+export const Slider = genericMemo(<T,>({ selected, options, setSelected }: SliderProps<T>) => {
+  const isLeftSelected = selected === options.left.value;
+
+  return (
+    <div className="flex items-center flex-wrap shrink-0 gap-1 bg-bolt-elements-background-depth-1 overflow-hidden rounded-full p-1">
+      <SliderButton selected={isLeftSelected} setSelected={() => setSelected?.(options.left.value)}>
+        {options.left.text}
+      </SliderButton>
+      <SliderButton selected={!isLeftSelected} setSelected={() => setSelected?.(options.right.value)}>
+        {options.right.text}
+      </SliderButton>
+    </div>
+  );
+});
+
+interface SliderButtonProps {
+  selected: boolean;
+  children: string | JSX.Element | Array<JSX.Element | string>;
+  setSelected: () => void;
+}
+
+const SliderButton = memo(({ selected, children, setSelected }: SliderButtonProps) => {
+  return (
+    <button
+      onClick={setSelected}
+      className={classNames(
+        'bg-transparent text-sm px-2.5 py-0.5 rounded-full relative',
+        selected
+          ? 'text-bolt-elements-item-contentAccent'
+          : 'text-bolt-elements-item-contentDefault hover:text-bolt-elements-item-contentActive',
+      )}
+    >
+      <span className="relative z-10">{children}</span>
+      {selected && (
+        <motion.span
+          layoutId="pill-tab"
+          transition={{ duration: 0.2, ease: cubicEasingFn }}
+          className="absolute inset-0 z-0 bg-bolt-elements-item-backgroundAccent rounded-full"
+        ></motion.span>
+      )}
+    </button>
+  );
+});

app/components/ui/ThemeSwitch.tsx

@@ -0,0 +1,29 @@
+import { useStore } from '@nanostores/react';
+import { memo, useEffect, useState } from 'react';
+import { themeStore, toggleTheme } from '~/lib/stores/theme';
+import { IconButton } from './IconButton';
+
+interface ThemeSwitchProps {
+  className?: string;
+}
+
+export const ThemeSwitch = memo(({ className }: ThemeSwitchProps) => {
+  const theme = useStore(themeStore);
+  const [domLoaded, setDomLoaded] = useState(false);
+
+  useEffect(() => {
+    setDomLoaded(true);
+  }, []);
+
+  return (
+    domLoaded && (
+      <IconButton
+        className={className}
+        icon={theme === 'dark' ? 'i-ph-sun-dim-duotone' : 'i-ph-moon-stars-duotone'}
+        size="xl"
+        title="Toggle Theme"
+        onClick={toggleTheme}
+      />
+    )
+  );
+});

app/components/workbench/EditorPanel.tsx

@@ -0,0 +1,256 @@
+import { useStore } from '@nanostores/react';
+import { memo, useEffect, useMemo, useRef, useState } from 'react';
+import { Panel, PanelGroup, PanelResizeHandle, type ImperativePanelHandle } from 'react-resizable-panels';
+import {
+  CodeMirrorEditor,
+  type EditorDocument,
+  type EditorSettings,
+  type OnChangeCallback as OnEditorChange,
+  type OnSaveCallback as OnEditorSave,
+  type OnScrollCallback as OnEditorScroll,
+} from '~/components/editor/codemirror/CodeMirrorEditor';
+import { IconButton } from '~/components/ui/IconButton';
+import { PanelHeader } from '~/components/ui/PanelHeader';
+import { PanelHeaderButton } from '~/components/ui/PanelHeaderButton';
+import { shortcutEventEmitter } from '~/lib/hooks';
+import type { FileMap } from '~/lib/stores/files';
+import { themeStore } from '~/lib/stores/theme';
+import { workbenchStore } from '~/lib/stores/workbench';
+import { classNames } from '~/utils/classNames';
+import { WORK_DIR } from '~/utils/constants';
+import { renderLogger } from '~/utils/logger';
+import { isMobile } from '~/utils/mobile';
+import { FileBreadcrumb } from './FileBreadcrumb';
+import { FileTree } from './FileTree';
+import { Terminal, type TerminalRef } from './terminal/Terminal';
+
+interface EditorPanelProps {
+  files?: FileMap;
+  unsavedFiles?: Set<string>;
+  editorDocument?: EditorDocument;
+  selectedFile?: string | undefined;
+  isStreaming?: boolean;
+  onEditorChange?: OnEditorChange;
+  onEditorScroll?: OnEditorScroll;
+  onFileSelect?: (value?: string) => void;
+  onFileSave?: OnEditorSave;
+  onFileReset?: () => void;
+}
+
+const MAX_TERMINALS = 3;
+const DEFAULT_TERMINAL_SIZE = 25;
+const DEFAULT_EDITOR_SIZE = 100 - DEFAULT_TERMINAL_SIZE;
+
+const editorSettings: EditorSettings = { tabSize: 2 };
+
+export const EditorPanel = memo(
+  ({
+    files,
+    unsavedFiles,
+    editorDocument,
+    selectedFile,
+    isStreaming,
+    onFileSelect,
+    onEditorChange,
+    onEditorScroll,
+    onFileSave,
+    onFileReset,
+  }: EditorPanelProps) => {
+    renderLogger.trace('EditorPanel');
+
+    const theme = useStore(themeStore);
+    const showTerminal = useStore(workbenchStore.showTerminal);
+
+    const terminalRefs = useRef<Array<TerminalRef | null>>([]);
+    const terminalPanelRef = useRef<ImperativePanelHandle>(null);
+    const terminalToggledByShortcut = useRef(false);
+
+    const [activeTerminal, setActiveTerminal] = useState(0);
+    const [terminalCount, setTerminalCount] = useState(1);
+
+    const activeFileSegments = useMemo(() => {
+      if (!editorDocument) {
+        return undefined;
+      }
+
+      return editorDocument.filePath.split('/');
+    }, [editorDocument]);
+
+    const activeFileUnsaved = useMemo(() => {
+      return editorDocument !== undefined && unsavedFiles?.has(editorDocument.filePath);
+    }, [editorDocument, unsavedFiles]);
+
+    useEffect(() => {
+      const unsubscribeFromEventEmitter = shortcutEventEmitter.on('toggleTerminal', () => {
+        terminalToggledByShortcut.current = true;
+      });
+
+      const unsubscribeFromThemeStore = themeStore.subscribe(() => {
+        for (const ref of Object.values(terminalRefs.current)) {
+          ref?.reloadStyles();
+        }
+      });
+
+      return () => {
+        unsubscribeFromEventEmitter();
+        unsubscribeFromThemeStore();
+      };
+    }, []);
+
+    useEffect(() => {
+      const { current: terminal } = terminalPanelRef;
+
+      if (!terminal) {
+        return;
+      }
+
+      const isCollapsed = terminal.isCollapsed();
+
+      if (!showTerminal && !isCollapsed) {
+        terminal.collapse();
+      } else if (showTerminal && isCollapsed) {
+        terminal.resize(DEFAULT_TERMINAL_SIZE);
+      }
+
+      terminalToggledByShortcut.current = false;
+    }, [showTerminal]);
+
+    const addTerminal = () => {
+      if (terminalCount < MAX_TERMINALS) {
+        setTerminalCount(terminalCount + 1);
+        setActiveTerminal(terminalCount);
+      }
+    };
+
+    return (
+      <PanelGroup direction="vertical">
+        <Panel defaultSize={showTerminal ? DEFAULT_EDITOR_SIZE : 100} minSize={20}>
+          <PanelGroup direction="horizontal">
+            <Panel defaultSize={20} minSize={10} collapsible>
+              <div className="flex flex-col border-r border-bolt-elements-borderColor h-full">
+                <PanelHeader>
+                  <div className="i-ph:tree-structure-duotone shrink-0" />
+                  Files
+                </PanelHeader>
+                <FileTree
+                  className="h-full"
+                  files={files}
+                  hideRoot
+                  unsavedFiles={unsavedFiles}
+                  rootFolder={WORK_DIR}
+                  selectedFile={selectedFile}
+                  onFileSelect={onFileSelect}
+                />
+              </div>
+            </Panel>
+            <PanelResizeHandle />
+            <Panel className="flex flex-col" defaultSize={80} minSize={20}>
+              <PanelHeader className="overflow-x-auto">
+                {activeFileSegments?.length && (
+                  <div className="flex items-center flex-1 text-sm">
+                    <FileBreadcrumb pathSegments={activeFileSegments} files={files} onFileSelect={onFileSelect} />
+                    {activeFileUnsaved && (
+                      <div className="flex gap-1 ml-auto -mr-1.5">
+                        <PanelHeaderButton onClick={onFileSave}>
+                          <div className="i-ph:floppy-disk-duotone" />
+                          Save
+                        </PanelHeaderButton>
+                        <PanelHeaderButton onClick={onFileReset}>
+                          <div className="i-ph:clock-counter-clockwise-duotone" />
+                          Reset
+                        </PanelHeaderButton>
+                      </div>
+                    )}
+                  </div>
+                )}
+              </PanelHeader>
+              <div className="h-full flex-1 overflow-hidden">
+                <CodeMirrorEditor
+                  theme={theme}
+                  editable={!isStreaming && editorDocument !== undefined}
+                  settings={editorSettings}
+                  doc={editorDocument}
+                  autoFocusOnDocumentChange={!isMobile()}
+                  onScroll={onEditorScroll}
+                  onChange={onEditorChange}
+                  onSave={onFileSave}
+                />
+              </div>
+            </Panel>
+          </PanelGroup>
+        </Panel>
+        <PanelResizeHandle />
+        <Panel
+          ref={terminalPanelRef}
+          defaultSize={showTerminal ? DEFAULT_TERMINAL_SIZE : 0}
+          minSize={10}
+          collapsible
+          onExpand={() => {
+            if (!terminalToggledByShortcut.current) {
+              workbenchStore.toggleTerminal(true);
+            }
+          }}
+          onCollapse={() => {
+            if (!terminalToggledByShortcut.current) {
+              workbenchStore.toggleTerminal(false);
+            }
+          }}
+        >
+          <div className="h-full">
+            <div className="bg-bolt-elements-terminals-background h-full flex flex-col">
+              <div className="flex items-center bg-bolt-elements-background-depth-2 border-y border-bolt-elements-borderColor gap-1.5 min-h-[34px] p-2">
+                {Array.from({ length: terminalCount }, (_, index) => {
+                  const isActive = activeTerminal === index;
+
+                  return (
+                    <button
+                      key={index}
+                      className={classNames(
+                        'flex items-center text-sm cursor-pointer gap-1.5 px-3 py-2 h-full whitespace-nowrap rounded-full',
+                        {
+                          'bg-bolt-elements-terminals-buttonBackground text-bolt-elements-textPrimary': isActive,
+                          'bg-bolt-elements-background-depth-2 text-bolt-elements-textSecondary hover:bg-bolt-elements-terminals-buttonBackground':
+                            !isActive,
+                        },
+                      )}
+                      onClick={() => setActiveTerminal(index)}
+                    >
+                      <div className="i-ph:terminal-window-duotone text-lg" />
+                      Terminal {terminalCount > 1 && index + 1}
+                    </button>
+                  );
+                })}
+                {terminalCount < MAX_TERMINALS && <IconButton icon="i-ph:plus" size="md" onClick={addTerminal} />}
+                <IconButton
+                  className="ml-auto"
+                  icon="i-ph:caret-down"
+                  title="Close"
+                  size="md"
+                  onClick={() => workbenchStore.toggleTerminal(false)}
+                />
+              </div>
+              {Array.from({ length: terminalCount }, (_, index) => {
+                const isActive = activeTerminal === index;
+
+                return (
+                  <Terminal
+                    key={index}
+                    className={classNames('h-full overflow-hidden', {
+                      hidden: !isActive,
+                    })}
+                    ref={(ref) => {
+                      terminalRefs.current.push(ref);
+                    }}
+                    onTerminalReady={(terminal) => workbenchStore.attachTerminal(terminal)}
+                    onTerminalResize={(cols, rows) => workbenchStore.onTerminalResize(cols, rows)}
+                    theme={theme}
+                  />
+                );
+              })}
+            </div>
+          </div>
+        </Panel>
+      </PanelGroup>
+    );
+  },
+);

app/components/workbench/FileBreadcrumb.tsx

@@ -0,0 +1,148 @@
+import * as DropdownMenu from '@radix-ui/react-dropdown-menu';
+import { AnimatePresence, motion, type Variants } from 'framer-motion';
+import { memo, useEffect, useRef, useState } from 'react';
+import type { FileMap } from '~/lib/stores/files';
+import { classNames } from '~/utils/classNames';
+import { WORK_DIR } from '~/utils/constants';
+import { cubicEasingFn } from '~/utils/easings';
+import { renderLogger } from '~/utils/logger';
+import FileTree from './FileTree';
+
+const WORK_DIR_REGEX = new RegExp(`^${WORK_DIR.split('/').slice(0, -1).join('/').replaceAll('/', '\\/')}/`);
+
+interface FileBreadcrumbProps {
+  files?: FileMap;
+  pathSegments?: string[];
+  onFileSelect?: (filePath: string) => void;
+}
+
+const contextMenuVariants = {
+  open: {
+    y: 0,
+    opacity: 1,
+    transition: {
+      duration: 0.15,
+      ease: cubicEasingFn,
+    },
+  },
+  close: {
+    y: 6,
+    opacity: 0,
+    transition: {
+      duration: 0.15,
+      ease: cubicEasingFn,
+    },
+  },
+} satisfies Variants;
+
+export const FileBreadcrumb = memo<FileBreadcrumbProps>(({ files, pathSegments = [], onFileSelect }) => {
+  renderLogger.trace('FileBreadcrumb');
+
+  const [activeIndex, setActiveIndex] = useState<number | null>(null);
+
+  const contextMenuRef = useRef<HTMLDivElement | null>(null);
+  const segmentRefs = useRef<(HTMLSpanElement | null)[]>([]);
+
+  const handleSegmentClick = (index: number) => {
+    setActiveIndex((prevIndex) => (prevIndex === index ? null : index));
+  };
+
+  useEffect(() => {
+    const handleOutsideClick = (event: MouseEvent) => {
+      if (
+        activeIndex !== null &&
+        !contextMenuRef.current?.contains(event.target as Node) &&
+        !segmentRefs.current.some((ref) => ref?.contains(event.target as Node))
+      ) {
+        setActiveIndex(null);
+      }
+    };
+
+    document.addEventListener('mousedown', handleOutsideClick);
+
+    return () => {
+      document.removeEventListener('mousedown', handleOutsideClick);
+    };
+  }, [activeIndex]);
+
+  if (files === undefined || pathSegments.length === 0) {
+    return null;
+  }
+
+  return (
+    <div className="flex">
+      {pathSegments.map((segment, index) => {
+        const isLast = index === pathSegments.length - 1;
+
+        const path = pathSegments.slice(0, index).join('/');
+
+        if (!WORK_DIR_REGEX.test(path)) {
+          return null;
+        }
+
+        const isActive = activeIndex === index;
+
+        return (
+          <div key={index} className="relative flex items-center">
+            <DropdownMenu.Root open={isActive} modal={false}>
+              <DropdownMenu.Trigger asChild>
+                <span
+                  ref={(ref) => (segmentRefs.current[index] = ref)}
+                  className={classNames('flex items-center gap-1.5 cursor-pointer shrink-0', {
+                    'text-bolt-elements-textTertiary hover:text-bolt-elements-textPrimary': !isActive,
+                    'text-bolt-elements-textPrimary underline': isActive,
+                    'pr-4': isLast,
+                  })}
+                  onClick={() => handleSegmentClick(index)}
+                >
+                  {isLast && <div className="i-ph:file-duotone" />}
+                  {segment}
+                </span>
+              </DropdownMenu.Trigger>
+              {index > 0 && !isLast && <span className="i-ph:caret-right inline-block mx-1" />}
+              <AnimatePresence>
+                {isActive && (
+                  <DropdownMenu.Portal>
+                    <DropdownMenu.Content
+                      className="z-file-tree-breadcrumb"
+                      asChild
+                      align="start"
+                      side="bottom"
+                      avoidCollisions={false}
+                    >
+                      <motion.div
+                        ref={contextMenuRef}
+                        initial="close"
+                        animate="open"
+                        exit="close"
+                        variants={contextMenuVariants}
+                      >
+                        <div className="rounded-lg overflow-hidden">
+                          <div className="max-h-[50vh] min-w-[300px] overflow-scroll bg-bolt-elements-background-depth-1 border border-bolt-elements-borderColor shadow-sm rounded-lg">
+                            <FileTree
+                              files={files}
+                              hideRoot
+                              rootFolder={path}
+                              collapsed
+                              allowFolderSelection
+                              selectedFile={`${path}/${segment}`}
+                              onFileSelect={(filePath) => {
+                                setActiveIndex(null);
+                                onFileSelect?.(filePath);
+                              }}
+                            />
+                          </div>
+                        </div>
+                        <DropdownMenu.Arrow className="fill-bolt-elements-borderColor" />
+                      </motion.div>
+                    </DropdownMenu.Content>
+                  </DropdownMenu.Portal>
+                )}
+              </AnimatePresence>
+            </DropdownMenu.Root>
+          </div>
+        );
+      })}
+    </div>
+  );
+});

app/components/workbench/FileTree.tsx

@@ -0,0 +1,409 @@
+import { memo, useEffect, useMemo, useState, type ReactNode } from 'react';
+import type { FileMap } from '~/lib/stores/files';
+import { classNames } from '~/utils/classNames';
+import { createScopedLogger, renderLogger } from '~/utils/logger';
+
+const logger = createScopedLogger('FileTree');
+
+const NODE_PADDING_LEFT = 8;
+const DEFAULT_HIDDEN_FILES = [/\/node_modules\//, /\/\.next/, /\/\.astro/];
+
+interface Props {
+  files?: FileMap;
+  selectedFile?: string;
+  onFileSelect?: (filePath: string) => void;
+  rootFolder?: string;
+  hideRoot?: boolean;
+  collapsed?: boolean;
+  allowFolderSelection?: boolean;
+  hiddenFiles?: Array<string | RegExp>;
+  unsavedFiles?: Set<string>;
+  className?: string;
+}
+
+export const FileTree = memo(
+  ({
+    files = {},
+    onFileSelect,
+    selectedFile,
+    rootFolder,
+    hideRoot = false,
+    collapsed = false,
+    allowFolderSelection = false,
+    hiddenFiles,
+    className,
+    unsavedFiles,
+  }: Props) => {
+    renderLogger.trace('FileTree');
+
+    const computedHiddenFiles = useMemo(() => [...DEFAULT_HIDDEN_FILES, ...(hiddenFiles ?? [])], [hiddenFiles]);
+
+    const fileList = useMemo(() => {
+      return buildFileList(files, rootFolder, hideRoot, computedHiddenFiles);
+    }, [files, rootFolder, hideRoot, computedHiddenFiles]);
+
+    const [collapsedFolders, setCollapsedFolders] = useState(() => {
+      return collapsed
+        ? new Set(fileList.filter((item) => item.kind === 'folder').map((item) => item.fullPath))
+        : new Set<string>();
+    });
+
+    useEffect(() => {
+      if (collapsed) {
+        setCollapsedFolders(new Set(fileList.filter((item) => item.kind === 'folder').map((item) => item.fullPath)));
+        return;
+      }
+
+      setCollapsedFolders((prevCollapsed) => {
+        const newCollapsed = new Set<string>();
+
+        for (const folder of fileList) {
+          if (folder.kind === 'folder' && prevCollapsed.has(folder.fullPath)) {
+            newCollapsed.add(folder.fullPath);
+          }
+        }
+
+        return newCollapsed;
+      });
+    }, [fileList, collapsed]);
+
+    const filteredFileList = useMemo(() => {
+      const list = [];
+
+      let lastDepth = Number.MAX_SAFE_INTEGER;
+
+      for (const fileOrFolder of fileList) {
+        const depth = fileOrFolder.depth;
+
+        // if the depth is equal we reached the end of the collaped group
+        if (lastDepth === depth) {
+          lastDepth = Number.MAX_SAFE_INTEGER;
+        }
+
+        // ignore collapsed folders
+        if (collapsedFolders.has(fileOrFolder.fullPath)) {
+          lastDepth = Math.min(lastDepth, depth);
+        }
+
+        // ignore files and folders below the last collapsed folder
+        if (lastDepth < depth) {
+          continue;
+        }
+
+        list.push(fileOrFolder);
+      }
+
+      return list;
+    }, [fileList, collapsedFolders]);
+
+    const toggleCollapseState = (fullPath: string) => {
+      setCollapsedFolders((prevSet) => {
+        const newSet = new Set(prevSet);
+
+        if (newSet.has(fullPath)) {
+          newSet.delete(fullPath);
+        } else {
+          newSet.add(fullPath);
+        }
+
+        return newSet;
+      });
+    };
+
+    return (
+      <div className={classNames('text-sm', className)}>
+        {filteredFileList.map((fileOrFolder) => {
+          switch (fileOrFolder.kind) {
+            case 'file': {
+              return (
+                <File
+                  key={fileOrFolder.id}
+                  selected={selectedFile === fileOrFolder.fullPath}
+                  file={fileOrFolder}
+                  unsavedChanges={unsavedFiles?.has(fileOrFolder.fullPath)}
+                  onClick={() => {
+                    onFileSelect?.(fileOrFolder.fullPath);
+                  }}
+                />
+              );
+            }
+            case 'folder': {
+              return (
+                <Folder
+                  key={fileOrFolder.id}
+                  folder={fileOrFolder}
+                  selected={allowFolderSelection && selectedFile === fileOrFolder.fullPath}
+                  collapsed={collapsedFolders.has(fileOrFolder.fullPath)}
+                  onClick={() => {
+                    toggleCollapseState(fileOrFolder.fullPath);
+                  }}
+                />
+              );
+            }
+            default: {
+              return undefined;
+            }
+          }
+        })}
+      </div>
+    );
+  },
+);
+
+export default FileTree;
+
+interface FolderProps {
+  folder: FolderNode;
+  collapsed: boolean;
+  selected?: boolean;
+  onClick: () => void;
+}
+
+function Folder({ folder: { depth, name }, collapsed, selected = false, onClick }: FolderProps) {
+  return (
+    <NodeButton
+      className={classNames('group', {
+        'bg-transparent text-bolt-elements-item-contentDefault hover:text-bolt-elements-item-contentActive hover:bg-bolt-elements-item-backgroundActive':
+          !selected,
+        'bg-bolt-elements-item-backgroundAccent text-bolt-elements-item-contentAccent': selected,
+      })}
+      depth={depth}
+      iconClasses={classNames({
+        'i-ph:caret-right scale-98': collapsed,
+        'i-ph:caret-down scale-98': !collapsed,
+      })}
+      onClick={onClick}
+    >
+      {name}
+    </NodeButton>
+  );
+}
+
+interface FileProps {
+  file: FileNode;
+  selected: boolean;
+  unsavedChanges?: boolean;
+  onClick: () => void;
+}
+
+function File({ file: { depth, name }, onClick, selected, unsavedChanges = false }: FileProps) {
+  return (
+    <NodeButton
+      className={classNames('group', {
+        'bg-transparent hover:bg-bolt-elements-item-backgroundActive text-bolt-elements-item-contentDefault': !selected,
+        'bg-bolt-elements-item-backgroundAccent text-bolt-elements-item-contentAccent': selected,
+      })}
+      depth={depth}
+      iconClasses={classNames('i-ph:file-duotone scale-98', {
+        'group-hover:text-bolt-elements-item-contentActive': !selected,
+      })}
+      onClick={onClick}
+    >
+      <div
+        className={classNames('flex items-center', {
+          'group-hover:text-bolt-elements-item-contentActive': !selected,
+        })}
+      >
+        <div className="flex-1 truncate pr-2">{name}</div>
+        {unsavedChanges && <span className="i-ph:circle-fill scale-68 shrink-0 text-orange-500" />}
+      </div>
+    </NodeButton>
+  );
+}
+
+interface ButtonProps {
+  depth: number;
+  iconClasses: string;
+  children: ReactNode;
+  className?: string;
+  onClick?: () => void;
+}
+
+function NodeButton({ depth, iconClasses, onClick, className, children }: ButtonProps) {
+  return (
+    <button
+      className={classNames(
+        'flex items-center gap-1.5 w-full pr-2 border-2 border-transparent text-faded py-0.5',
+        className,
+      )}
+      style={{ paddingLeft: `${6 + depth * NODE_PADDING_LEFT}px` }}
+      onClick={() => onClick?.()}
+    >
+      <div className={classNames('scale-120 shrink-0', iconClasses)}></div>
+      <div className="truncate w-full text-left">{children}</div>
+    </button>
+  );
+}
+
+type Node = FileNode | FolderNode;
+
+interface BaseNode {
+  id: number;
+  depth: number;
+  name: string;
+  fullPath: string;
+}
+
+interface FileNode extends BaseNode {
+  kind: 'file';
+}
+
+interface FolderNode extends BaseNode {
+  kind: 'folder';
+}
+
+function buildFileList(
+  files: FileMap,
+  rootFolder = '/',
+  hideRoot: boolean,
+  hiddenFiles: Array<string | RegExp>,
+): Node[] {
+  const folderPaths = new Set<string>();
+  const fileList: Node[] = [];
+
+  let defaultDepth = 0;
+
+  if (rootFolder === '/' && !hideRoot) {
+    defaultDepth = 1;
+    fileList.push({ kind: 'folder', name: '/', depth: 0, id: 0, fullPath: '/' });
+  }
+
+  for (const [filePath, dirent] of Object.entries(files)) {
+    const segments = filePath.split('/').filter((segment) => segment);
+    const fileName = segments.at(-1);
+
+    if (!fileName || isHiddenFile(filePath, fileName, hiddenFiles)) {
+      continue;
+    }
+
+    let currentPath = '';
+
+    let i = 0;
+    let depth = 0;
+
+    while (i < segments.length) {
+      const name = segments[i];
+      const fullPath = (currentPath += `/${name}`);
+
+      if (!fullPath.startsWith(rootFolder) || (hideRoot && fullPath === rootFolder)) {
+        i++;
+        continue;
+      }
+
+      if (i === segments.length - 1 && dirent?.type === 'file') {
+        fileList.push({
+          kind: 'file',
+          id: fileList.length,
+          name,
+          fullPath,
+          depth: depth + defaultDepth,
+        });
+      } else if (!folderPaths.has(fullPath)) {
+        folderPaths.add(fullPath);
+
+        fileList.push({
+          kind: 'folder',
+          id: fileList.length,
+          name,
+          fullPath,
+          depth: depth + defaultDepth,
+        });
+      }
+
+      i++;
+      depth++;
+    }
+  }
+
+  return sortFileList(rootFolder, fileList, hideRoot);
+}
+
+function isHiddenFile(filePath: string, fileName: string, hiddenFiles: Array<string | RegExp>) {
+  return hiddenFiles.some((pathOrRegex) => {
+    if (typeof pathOrRegex === 'string') {
+      return fileName === pathOrRegex;
+    }
+
+    return pathOrRegex.test(filePath);
+  });
+}
+
+/**
+ * Sorts the given list of nodes into a tree structure (still a flat list).
+ *
+ * This function organizes the nodes into a hierarchical structure based on their paths,
+ * with folders appearing before files and all items sorted alphabetically within their level.
+ *
+ * @note This function mutates the given `nodeList` array for performance reasons.
+ *
+ * @param rootFolder - The path of the root folder to start the sorting from.
+ * @param nodeList - The list of nodes to be sorted.
+ *
+ * @returns A new array of nodes sorted in depth-first order.
+ */
+function sortFileList(rootFolder: string, nodeList: Node[], hideRoot: boolean): Node[] {
+  logger.trace('sortFileList');
+
+  const nodeMap = new Map<string, Node>();
+  const childrenMap = new Map<string, Node[]>();
+
+  // pre-sort nodes by name and type
+  nodeList.sort((a, b) => compareNodes(a, b));
+
+  for (const node of nodeList) {
+    nodeMap.set(node.fullPath, node);
+
+    const parentPath = node.fullPath.slice(0, node.fullPath.lastIndexOf('/'));
+
+    if (parentPath !== rootFolder.slice(0, rootFolder.lastIndexOf('/'))) {
+      if (!childrenMap.has(parentPath)) {
+        childrenMap.set(parentPath, []);
+      }
+
+      childrenMap.get(parentPath)?.push(node);
+    }
+  }
+
+  const sortedList: Node[] = [];
+
+  const depthFirstTraversal = (path: string): void => {
+    const node = nodeMap.get(path);
+
+    if (node) {
+      sortedList.push(node);
+    }
+
+    const children = childrenMap.get(path);
+
+    if (children) {
+      for (const child of children) {
+        if (child.kind === 'folder') {
+          depthFirstTraversal(child.fullPath);
+        } else {
+          sortedList.push(child);
+        }
+      }
+    }
+  };
+
+  if (hideRoot) {
+    // if root is hidden, start traversal from its immediate children
+    const rootChildren = childrenMap.get(rootFolder) || [];
+
+    for (const child of rootChildren) {
+      depthFirstTraversal(child.fullPath);
+    }
+  } else {
+    depthFirstTraversal(rootFolder);
+  }
+
+  return sortedList;
+}
+
+function compareNodes(a: Node, b: Node): number {
+  if (a.kind !== b.kind) {
+    return a.kind === 'folder' ? -1 : 1;
+  }
+
+  return a.name.localeCompare(b.name, undefined, { numeric: true, sensitivity: 'base' });
+}

app/components/workbench/PortDropdown.tsx

@@ -0,0 +1,83 @@
+import { memo, useEffect, useRef } from 'react';
+import { IconButton } from '~/components/ui/IconButton';
+import type { PreviewInfo } from '~/lib/stores/previews';
+
+interface PortDropdownProps {
+  activePreviewIndex: number;
+  setActivePreviewIndex: (index: number) => void;
+  isDropdownOpen: boolean;
+  setIsDropdownOpen: (value: boolean) => void;
+  setHasSelectedPreview: (value: boolean) => void;
+  previews: PreviewInfo[];
+}
+
+export const PortDropdown = memo(
+  ({
+    activePreviewIndex,
+    setActivePreviewIndex,
+    isDropdownOpen,
+    setIsDropdownOpen,
+    setHasSelectedPreview,
+    previews,
+  }: PortDropdownProps) => {
+    const dropdownRef = useRef<HTMLDivElement>(null);
+
+    // sort previews, preserving original index
+    const sortedPreviews = previews
+      .map((previewInfo, index) => ({ ...previewInfo, index }))
+      .sort((a, b) => a.port - b.port);
+
+    // close dropdown if user clicks outside
+    useEffect(() => {
+      const handleClickOutside = (event: MouseEvent) => {
+        if (dropdownRef.current && !dropdownRef.current.contains(event.target as Node)) {
+          setIsDropdownOpen(false);
+        }
+      };
+
+      if (isDropdownOpen) {
+        window.addEventListener('mousedown', handleClickOutside);
+      } else {
+        window.removeEventListener('mousedown', handleClickOutside);
+      }
+
+      return () => {
+        window.removeEventListener('mousedown', handleClickOutside);
+      };
+    }, [isDropdownOpen]);
+
+    return (
+      <div className="relative z-port-dropdown" ref={dropdownRef}>
+        <IconButton icon="i-ph:plug" onClick={() => setIsDropdownOpen(!isDropdownOpen)} />
+        {isDropdownOpen && (
+          <div className="absolute right-0 mt-2 bg-bolt-elements-background-depth-2 border border-bolt-elements-borderColor rounded shadow-sm min-w-[140px] dropdown-animation">
+            <div className="px-4 py-2 border-b border-bolt-elements-borderColor text-sm font-semibold text-bolt-elements-textPrimary">
+              Ports
+            </div>
+            {sortedPreviews.map((preview) => (
+              <div
+                key={preview.port}
+                className="flex items-center px-4 py-2 cursor-pointer hover:bg-bolt-elements-item-backgroundActive"
+                onClick={() => {
+                  setActivePreviewIndex(preview.index);
+                  setIsDropdownOpen(false);
+                  setHasSelectedPreview(true);
+                }}
+              >
+                <span
+                  className={
+                    activePreviewIndex === preview.index
+                      ? 'text-bolt-elements-item-contentAccent'
+                      : 'text-bolt-elements-item-contentDefault group-hover:text-bolt-elements-item-contentActive'
+                  }
+                >
+                  {preview.port}
+                </span>
+              </div>
+            ))}
+          </div>
+        )}
+      </div>
+    );
+  },
+);

app/components/workbench/Preview.tsx

@@ -0,0 +1,124 @@
+import { useStore } from '@nanostores/react';
+import { memo, useCallback, useEffect, useRef, useState } from 'react';
+import { IconButton } from '~/components/ui/IconButton';
+import { workbenchStore } from '~/lib/stores/workbench';
+import { PortDropdown } from './PortDropdown';
+
+export const Preview = memo(() => {
+  const iframeRef = useRef<HTMLIFrameElement>(null);
+  const inputRef = useRef<HTMLInputElement>(null);
+  const [activePreviewIndex, setActivePreviewIndex] = useState(0);
+  const [isPortDropdownOpen, setIsPortDropdownOpen] = useState(false);
+  const hasSelectedPreview = useRef(false);
+  const previews = useStore(workbenchStore.previews);
+  const activePreview = previews[activePreviewIndex];
+
+  const [url, setUrl] = useState('');
+  const [iframeUrl, setIframeUrl] = useState<string | undefined>();
+
+  useEffect(() => {
+    if (!activePreview) {
+      setUrl('');
+      setIframeUrl(undefined);
+
+      return;
+    }
+
+    const { baseUrl } = activePreview;
+
+    setUrl(baseUrl);
+    setIframeUrl(baseUrl);
+  }, [activePreview, iframeUrl]);
+
+  const validateUrl = useCallback(
+    (value: string) => {
+      if (!activePreview) {
+        return false;
+      }
+
+      const { baseUrl } = activePreview;
+
+      if (value === baseUrl) {
+        return true;
+      } else if (value.startsWith(baseUrl)) {
+        return ['/', '?', '#'].includes(value.charAt(baseUrl.length));
+      }
+
+      return false;
+    },
+    [activePreview],
+  );
+
+  const findMinPortIndex = useCallback(
+    (minIndex: number, preview: { port: number }, index: number, array: { port: number }[]) => {
+      return preview.port < array[minIndex].port ? index : minIndex;
+    },
+    [],
+  );
+
+  // when previews change, display the lowest port if user hasn't selected a preview
+  useEffect(() => {
+    if (previews.length > 1 && !hasSelectedPreview.current) {
+      const minPortIndex = previews.reduce(findMinPortIndex, 0);
+
+      setActivePreviewIndex(minPortIndex);
+    }
+  }, [previews]);
+
+  const reloadPreview = () => {
+    if (iframeRef.current) {
+      iframeRef.current.src = iframeRef.current.src;
+    }
+  };
+
+  return (
+    <div className="w-full h-full flex flex-col">
+      {isPortDropdownOpen && (
+        <div className="z-iframe-overlay w-full h-full absolute" onClick={() => setIsPortDropdownOpen(false)} />
+      )}
+      <div className="bg-bolt-elements-background-depth-2 p-2 flex items-center gap-1.5">
+        <IconButton icon="i-ph:arrow-clockwise" onClick={reloadPreview} />
+        <div
+          className="flex items-center gap-1 flex-grow bg-bolt-elements-preview-addressBar-background border border-bolt-elements-borderColor text-bolt-elements-preview-addressBar-text rounded-full px-3 py-1 text-sm hover:bg-bolt-elements-preview-addressBar-backgroundHover hover:focus-within:bg-bolt-elements-preview-addressBar-backgroundActive focus-within:bg-bolt-elements-preview-addressBar-backgroundActive
+        focus-within-border-bolt-elements-borderColorActive focus-within:text-bolt-elements-preview-addressBar-textActive"
+        >
+          <input
+            ref={inputRef}
+            className="w-full bg-transparent outline-none"
+            type="text"
+            value={url}
+            onChange={(event) => {
+              setUrl(event.target.value);
+            }}
+            onKeyDown={(event) => {
+              if (event.key === 'Enter' && validateUrl(url)) {
+                setIframeUrl(url);
+
+                if (inputRef.current) {
+                  inputRef.current.blur();
+                }
+              }
+            }}
+          />
+        </div>
+        {previews.length > 1 && (
+          <PortDropdown
+            activePreviewIndex={activePreviewIndex}
+            setActivePreviewIndex={setActivePreviewIndex}
+            isDropdownOpen={isPortDropdownOpen}
+            setHasSelectedPreview={(value) => (hasSelectedPreview.current = value)}
+            setIsDropdownOpen={setIsPortDropdownOpen}
+            previews={previews}
+          />
+        )}
+      </div>
+      <div className="flex-1 border-t border-bolt-elements-borderColor">
+        {activePreview ? (
+          <iframe ref={iframeRef} className="border-none w-full h-full bg-white" src={iframeUrl} />
+        ) : (
+          <div className="flex w-full h-full justify-center items-center bg-white">No preview available</div>
+        )}
+      </div>
+    </div>
+  );
+});