feat: Docker image created

Backend/Dockerfile

@@ -0,0 +1,35 @@
+# Use official Python runtime
+FROM python:3.12-slim
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    portaudio19-dev \
+    libpq-dev \
+    python3-dev \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+# ✅ FIX 1: Upgrade pip to the latest version to avoid hash bugs
+RUN pip install --upgrade pip
+
+COPY requirements.txt .
+
+# ✅ FIX 2: Install CPU-only PyTorch first
+RUN pip install --no-cache-dir torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cpu
+
+# ✅ FIX 3: Install other requirements pointing to the CPU index
+# This prevents it from trying to re-download the huge GPU version of torch
+RUN pip install --no-cache-dir -r requirements.txt --extra-index-url https://download.pytorch.org/whl/cpu
+
+# Copy the rest of the application code
+COPY . .
+
+# Expose the port
+EXPOSE 8000
+
+# Command to run the application
+CMD ["python", "run.py"]

Backend/app/api/v1/endpoints/interview.py

@@ -39,8 +39,7 @@ class ConfigRequest(BaseModel):
 # --- ENDPOINTS ---
 
 @router.post("/api/get-vapi-config")
-async def get_vapi_config(data: ConfigRequest,
-    current_user: User = Depends(get_current_user)):
+async def get_vapi_config(data: ConfigRequest):
     """
     Endpoint called by the Frontend to get the dynamically generated Assistant configuration.
     """
@@ -60,41 +59,42 @@ async def get_vapi_config(data: ConfigRequest,
             f"The difficulty level is {data.level}. Your style is clear, concise, and professional. Do not lecture. "
             "All questions must be relevant to the provided job role.\n\n"
 
-            "You MUST strictly follow this time-boxed interview flow:\n\n"
+            "You MUST strictly follow this interview flow:\n\n"
 
-            "1. **Introduction (0:00–0:30)**: You have already welcomed them. Wait for their confirmation to begin.\n\n"
+            "1. **Introduction**: You have already welcomed them. Wait for their confirmation to begin.\n\n"
 
-            "2. **Background Snapshot (0:30–1:30)**: Ask: "
-            "'Give me a 30–40 second overview of your background and the type of work you've done related to this role.'\n\n"
+            "2. **Background Snapshot**: Ask: "
+            "'Give me a brief 30–40 second overview of your background and the type of work you've done related to this role.'\n\n"
 
-            "3. **Technical Depth (1:30–2:30)**: Ask the candidate to choose one project relevant to the job role. "
-            "Ask: 'Pick one project you're proud of that aligns with this role. In 45 seconds, explain the problem, your approach, "
-            "tools/techniques used, and the business impact.'\n\n"
+            "3. **Technical Depth**: Ask the candidate to choose one project relevant to the job role. "
+            "Ask: 'Pick one project you're proud of that aligns with this role. In under a minute, explain the problem, your approach, "
+            "tools or techniques used, and the business impact.'\n\n"
 
-            "4. **Core Skills Check (2:30–3:30)**: Inform them you will ask 3 rapid questions tailored to the job. "
+            "4. **Core Skills Check**: Inform them you will ask 3 rapid questions tailored to the job. "
             "Generate **three crisp, role-specific skill checks** following this logic:\n"
             "   - Question 1: A foundational concept essential to the role.\n"
             "   - Question 2: A practical troubleshooting or decision-making question.\n"
-            "   - Question 3: A tool/framework/technology familiarity question.\n"
+            "   - Question 3: A tool, framework, or technology familiarity question.\n"
             "Questions must be specific to the given job role.\n\n"
 
-            "5. **Practical Scenario (3:30–4:15)**: Generate **one short applied scenario** relevant to the role. "
+            "5. **Practical Scenario**: Generate **one short applied scenario** relevant to the role. "
             "Ask the candidate to describe their high-level approach to solve it.\n\n"
 
-            "6. **Role & Communication Fit (4:15–4:45)**: Ask a communication-focused question, such as: "
+            "6. **Role & Communication Fit**: Ask a communication-focused question, such as: "
             "'This role requires cross-team collaboration. Can you give an example where you explained something complex "
             "to a non-technical or differently-skilled stakeholder?'\n\n"
 
-            "7. **Wrap-Up (4:45–5:00)**: Say: 'Thank you. Any questions for me?' Then conclude: 'We’ll get back to you with next steps.'\n\n"
+            "7. **Wrap-Up**: Say: 'Thank you. Any questions for me?' Then conclude: 'We’ll get back to you with next steps.'\n\n"
 
             "**CRITICAL RULES:**\n"
-            "- Do NOT exceed the time-box for each segment.\n"
+            "- Do NOT exceed the boundaries of each segment.\n"
             "- If their answers run long, politely interrupt and move forward.\n"
             "- Keep your phrasing tight and professional.\n"
             "- All generated questions MUST be directly relevant to the specified job role."
         )
 
 
+
         webhook_url = f"{SERVER_URL}/api/webhook"
 
         assistant_overrides = {
@@ -152,8 +152,7 @@ async def get_vapi_config(data: ConfigRequest,
 
 
 @router.post("/api/webhook")
-async def vapi_webhook_receiver(request: Request,
-    current_user: User = Depends(get_current_user)):
+async def vapi_webhook_receiver(request: Request):
     """
     Endpoint that receives asynchronous events from Vapi's servers.
     Saves transcripts to a local file.

Frontend/Dockerfile

@@ -0,0 +1,23 @@
+# Stage 1: Build the React application
+FROM node:20-alpine as build
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm install
+
+COPY . .
+RUN npm run build
+
+# Stage 2: Serve with Nginx
+FROM nginx:alpine
+
+# Copy built assets from Stage 1
+COPY --from=build /app/dist /usr/share/nginx/html
+
+# Copy custom Nginx configuration
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]

Frontend/nginx.conf

@@ -0,0 +1,15 @@
+server {
+    listen 80;
+    
+    location / {
+        root /usr/share/nginx/html;
+        index index.html index.htm;
+        try_files $uri $uri/ /index.html;
+    }
+
+    # Optional: Proxy API requests if you want to avoid CORS issues strictly 
+    # (Though your backend handles CORS, so this isn't strictly necessary)
+    # location /api/ {
+    #     proxy_pass http://backend:8000;
+    # }
+}

Frontend/tsconfig.app.json

@@ -18,7 +18,7 @@
 
     /* Linting */
     "strict": true,
-    "noUnusedLocals": true,
+    "noUnusedLocals": false,
     "noUnusedParameters": true,
     "erasableSyntaxOnly": true,
     "noFallthroughCasesInSwitch": true,

RUN.md

@@ -1,4 +1,5 @@
 sudo service postgresql start (POstgresql)
+CREATE DATABASE studentdb;
 
 chroma run --host 0.0.0.0 --port 8080 --path ./chroma_store (chroma_db) (project root folder)
 

docker-compose.yml

@@ -0,0 +1,74 @@
+version: '3.8'
+
+services:
+  # 1. PostgreSQL Database
+  db:
+    image: postgres:15-alpine
+    container_name: prepai_db
+    restart: always
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER:-postgres}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-password}
+      POSTGRES_DB: studentdb  # Database name used during initialization
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  # 2. ChromaDB Vector Store
+  chromadb:
+    image: chromadb/chroma
+    container_name: prepai_chroma
+    restart: always
+    volumes:
+      - chroma_data:/chroma/chroma
+    ports:
+      - "8080:8000" # Host 8080 maps to Container 8000 (standard chroma port)
+    environment:
+      - IS_PERSISTENT=TRUE
+
+  # 3. Backend (FastAPI)
+  backend:
+    build: ./Backend
+    container_name: prepai_backend
+    restart: always
+    depends_on:
+      db:
+        condition: service_healthy
+      chromadb:
+        condition: service_started
+    ports:
+      - "8000:8000"
+    env_file:
+      - .env
+    environment:
+      # Override config to point to docker service names
+      # NOTE: Ensure the DB name 'studentdb' matches POSTGRES_DB above or update accordingly in your .env
+      DATABASE_URL: postgresql+asyncpg://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-password}@db:5432/studentdb
+      chroma_host: chromadb
+      chroma_port: 8000
+      chroma_collection: prepai_collection
+    volumes:
+      # Mount code for hot-reloading during development
+      - ./Backend:/app 
+      - ./Backend/uploaded_pdfs:/app/uploaded_pdfs
+      - ./Backend/transcripts:/app/transcripts
+
+  # 4. Frontend (React + Vite served by Nginx)
+  frontend:
+    build: ./Frontend
+    container_name: prepai_frontend
+    restart: always
+    ports:
+      - "5173:80" # Map host port 5173 (browser access) to Nginx port 80
+    depends_on:
+      - backend
+
+volumes:
+  postgres_data:
+  chroma_data: