CodeIDE / src /App.js
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// App.js (complete updated file)
import { useState, useEffect, useRef } from "react";
import Editor from "@monaco-editor/react";
import { askAgent } from "./agent/assistant";
import { runCode } from "./agent/runner";
import {
loadTree,
saveTree,
addFile,
addFolder,
renameNode,
deleteNode,
getNodeByPath,
updateFileContent,
searchTree,
} from "./fileStore";
import { downloadProjectZip } from "./zipExport";
import { parseProblems } from "./problemParser";
import "./App.css";
import "xterm/css/xterm.css";
import XTerm from "./Terminal"; // keep your existing XTerm wrapper
// =================== SUPPORTED LANGUAGES ===================
const LANGUAGE_OPTIONS = [
{ id: "python", ext: ".py", icon: "🐍", monaco: "python" },
{ id: "javascript", ext: ".js", icon: "🟨", monaco: "javascript" },
{ id: "typescript", ext: ".ts", icon: "🟦", monaco: "typescript" },
{ id: "cpp", ext: ".cpp", icon: "πŸ’ ", monaco: "cpp" },
{ id: "c", ext: ".c", icon: "πŸ”·", monaco: "c" },
{ id: "java", ext: ".java", icon: "β˜•", monaco: "java" },
{ id: "html", ext: ".html", icon: "🌐", monaco: "html" },
{ id: "css", ext: ".css", icon: "🎨", monaco: "css" },
{ id: "json", ext: ".json", icon: "🧾", monaco: "json" },
];
const RUNNABLE_LANGS = ["python", "javascript", "java"];
// =================== Heuristics ===================
// output patterns that indicate the program is waiting for console input
function outputLooksForInput(output) {
if (!output) return false;
const o = output.toString();
const patterns = [
/enter.*:/i,
/input.*:/i,
/please enter/i,
/scanner/i,
/press enter/i,
/: $/,
/:\n$/,
/> $/,
/awaiting input/i,
/provide input/i,
/stdin/i,
];
return patterns.some((p) => p.test(o));
}
// code-level heuristics to detect input() or equivalent calls
function codeNeedsInput(code, langId) {
if (!code) return false;
try {
const c = code.toString();
// Python
if (langId === "python") {
// input(), sys.stdin.read(), sys.stdin.readline()
if (/\binput\s*\(/i.test(c)) return true;
if (/\bsys\.stdin\.(read|readline|readlines)\s*\(/i.test(c)) return true;
if (/\braw_input\s*\(/i.test(c)) return true; // py2
}
// Java
if (langId === "java") {
if (/\bScanner\s*\(/i.test(c)) return true;
if (/\bBufferedReader\b.*readLine/i.test(c)) return true;
if (/\bSystem\.console\(\)/i.test(c)) return true;
if (/\bnext(Int|Line|Double|)\b/i.test(c)) return true;
}
// JavaScript/Node
if (langId === "javascript") {
if (/process\.stdin|readline|readlineSync|prompt\(|require\(['"]readline['"]\)/i.test(c)) return true;
}
// C/C++/C: scanf / cin
if (langId === "cpp" || langId === "c") {
if (/\bscanf\s*\(/i.test(c)) return true;
if (/\bstd::cin\b|cin\s*>>/i.test(c)) return true;
if (/\bgets?\s*\(/i.test(c)) return true;
}
// Generic fallback
if (/\binput\b|\bscanf\b|\bscanf_s\b|\bcin\b|\bScanner\b|readLine|readline/i.test(c)) return true;
return false;
} catch {
return false;
}
}
// Helper: focus xterm's hidden textarea (works with xterm.js default markup)
function focusXtermHelper() {
setTimeout(() => {
const ta = document.querySelector("#terminal-container .xterm-helper-textarea");
if (ta) {
try {
ta.focus();
// move caret to end
const len = ta.value?.length ?? 0;
ta.setSelectionRange(len, len);
} catch {}
} else {
// Fallback: focus container to encourage user to click
const cont = document.getElementById("terminal-container");
if (cont) cont.focus();
}
}, 120); // small delay to ensure xterm is ready
}
// =================== APP ===================
function App() {
const [tree, setTree] = useState(loadTree());
const [activePath, setActivePath] = useState("main.py");
// Terminal state
const [accumStdin, setAccumStdin] = useState("");
const [awaitingInput, setAwaitingInput] = useState(false);
const [output, setOutput] = useState("");
const [prompt, setPrompt] = useState("");
const [explanation, setExplanation] = useState("");
// legacy small-input & helpers (kept for convenience)
const [terminalInput, setTerminalInput] = useState("");
const [stdin, setStdin] = useState("");
const [problems, setProblems] = useState([]);
const [theme, setTheme] = useState("vs-dark");
const [searchOpen, setSearchOpen] = useState(false);
const [searchQuery, setSearchQuery] = useState("");
const [aiSuggestions, setAiSuggestions] = useState([]);
const [contextMenu, setContextMenu] = useState(null);
const editorRef = useRef(null);
const fileInputRef = useRef(null);
// loading flags
const [isRunning, setIsRunning] = useState(false);
const [isFixing, setIsFixing] = useState(false);
const [isExplaining, setIsExplaining] = useState(false);
// near other useState declarations
const [interactivePromptShown, setInteractivePromptShown] = useState(false);
useEffect(() => {
saveTree(tree);
}, [tree]);
const currentNode = getNodeByPath(tree, activePath);
const langMeta =
LANGUAGE_OPTIONS.find((l) => currentNode?.name?.endsWith(l.ext)) ||
LANGUAGE_OPTIONS[0];
// ---------- File/Folder helpers (unchanged) ----------
const collectFolderPaths = (node, acc = []) => {
if (!node) return acc;
if (node.type === "folder") acc.push(node.path || "");
node.children?.forEach((c) => collectFolderPaths(c, acc));
return acc;
};
const handleNewFile = () => {
const filename = window.prompt("Filename (with extension):", "untitled.js");
if (!filename) return;
const selected = getNodeByPath(tree, activePath);
let parentPath = "";
if (selected?.type === "folder") parentPath = selected.path;
else if (selected?.type === "file") {
const parts = selected.path.split("/").slice(0, -1);
parentPath = parts.join("/");
}
const folders = collectFolderPaths(tree);
const suggestion = parentPath || folders[0] || "";
const chosen = window.prompt(
`Parent folder (enter path). Available:\n${folders.join("\n")}\n\nLeave empty for root.`,
suggestion
);
const targetParent = chosen == null ? parentPath : (chosen.trim() || "");
const updated = addFile(tree, filename, targetParent);
setTree(updated);
const newPath = (targetParent ? targetParent + "/" : "") + filename;
setActivePath(newPath);
};
const handleNewFolder = () => {
const name = window.prompt("Folder name:", "new_folder");
if (!name) return;
const selected = getNodeByPath(tree, activePath);
const parentPath = selected && selected.type === "folder" ? selected.path : "";
const updated = addFolder(tree, name, parentPath);
setTree(updated);
};
const handleRename = () => {
if (!activePath) return;
const node = getNodeByPath(tree, activePath);
if (!node) return;
const newName = window.prompt("New name:", node.name);
if (!newName || newName === node.name) return;
const updated = renameNode(tree, activePath, newName);
setTree(updated);
const parts = activePath.split("/");
parts.pop();
const parent = parts.join("/");
const newPath = (parent ? parent + "/" : "") + newName;
setActivePath(newPath);
};
const handleDelete = () => {
if (!activePath) return;
const node = getNodeByPath(tree, activePath);
if (!node) return;
if (node.type === "folder" && node.children?.length > 0) {
const ok = window.confirm(`Folder "${node.name}" has ${node.children.length} items. Delete anyway?`);
if (!ok) return;
} else {
const ok = window.confirm(`Delete "${node.name}"?`);
if (!ok) return;
}
const updated = deleteNode(tree, activePath);
setTree(updated);
setActivePath("");
};
const downloadFile = () => {
const node = getNodeByPath(tree, activePath);
if (!node || node.type !== "file") return;
const blob = new Blob([node.content || ""], { type: "text/plain;charset=utf-8" });
const a = document.createElement("a");
a.href = URL.createObjectURL(blob);
a.download = node.name;
a.click();
};
// import file
const handleImportFileClick = () => fileInputRef.current?.click();
const handleFileInputChange = async (e) => {
const f = e.target.files?.[0];
if (!f) return;
const text = await f.text();
const selected = getNodeByPath(tree, activePath);
let parentPath = "";
if (selected?.type === "folder") parentPath = selected.path;
else if (selected?.type === "file") parentPath = selected.path.split("/").slice(0, -1).join("");
const updated = addFile(tree, f.name, parentPath);
const newPath = (parentPath ? parentPath + "/" : "") + f.name;
const finalTree = updateFileContent(updated, newPath, text);
setTree(finalTree);
setActivePath(newPath);
e.target.value = "";
};
// ---------- Terminal helpers ----------
const resetTerminal = (keepAccum = false) => {
setOutput("");
if (!keepAccum) {
setAccumStdin("");
}
setAwaitingInput(false);
setTerminalInput("");
};
// Core run with updated input (used by XTerm onData and Send button)
const runCodeWithUpdatedInput = async (inputLine) => {
if (typeof inputLine !== "string") inputLine = String(inputLine || "");
const trimmed = inputLine.replace(/\r$/, ""); // normalize
if (trimmed.length === 0 && !accumStdin) {
// nothing to send
return;
}
// append newline like a real console
const newAccum = (accumStdin || "") + trimmed + "\n";
setAccumStdin(newAccum);
setInteractivePromptShown(false); // first input arrived -> clear prompt-shown flag
const node = getNodeByPath(tree, activePath);
if (!node || node.type !== "file") {
setOutput((prev) => prev + "\n[Error] No file selected to run.");
setAwaitingInput(false);
return;
}
const selectedLang = LANGUAGE_OPTIONS.find((l) => node.name.endsWith(l.ext))?.id;
if (!selectedLang || !RUNNABLE_LANGS.includes(selectedLang)) {
setOutput((prev) => prev + `\n[Error] Run not supported for ${node.name}`);
setAwaitingInput(false);
return;
}
setIsRunning(true);
try {
const res = await runCode(node.content, selectedLang, newAccum);
const out = res.output ?? "";
setOutput(out);
setProblems(res.error ? parseProblems(res.output) : []);
if (outputLooksForInput(out)) {
// program still waits for more input
setAwaitingInput(true);
focusXtermHelper();
} else {
setAwaitingInput(false);
}
} catch (err) {
setOutput(String(err));
setAwaitingInput(true);
} finally {
setIsRunning(false);
}
};
// Initial Run: do NOT run if code needs interactive input and there's no accumulated stdin.
const handleRun = async () => {
const node = getNodeByPath(tree, activePath);
if (!node || node.type !== "file") {
setOutput("Select a file to run.");
return;
}
const selectedLang = LANGUAGE_OPTIONS.find((l) => node.name.endsWith(l.ext))?.id;
if (!selectedLang || !RUNNABLE_LANGS.includes(selectedLang)) {
setOutput(`⚠️ Run not supported for this file type.`);
return;
}
const needs = codeNeedsInput(node.content, selectedLang);
const haveAccum = !!(accumStdin && accumStdin.length > 0);
const haveLegacyStdin = !!(stdin && stdin.length > 0);
if (needs && !haveAccum && !haveLegacyStdin) {
// Show helpful message in terminal and enable awaitingInput so user can type into XTerm.
setOutput("[Interactive program detected β€” type input directly into the terminal]");
setAwaitingInput(true);
setInteractivePromptShown(true);
focusXtermHelper();
return; // do not run now (avoids EOFError)
}
// Otherwise run immediately with whichever stdin we have (accumStdin or legacy stdin)
const stdinToSend = accumStdin || stdin || "";
resetTerminal(true); // keep accumStdin
setOutput(`[Running with stdin length=${stdinToSend ? stdinToSend.length : 0}]\n`);
setIsRunning(true);
setProblems([]);
try {
const res = await runCode(node.content, selectedLang, stdinToSend);
const out = res.output ?? "";
setOutput(out);
setProblems(res.error ? parseProblems(res.output) : []);
if (outputLooksForInput(out)) {
setAwaitingInput(true);
focusXtermHelper();
} else {
setAwaitingInput(false);
setInteractivePromptShown(false);
}
} catch (err) {
setOutput(String(err));
// Allow user to type into terminal after EOF errors
setAwaitingInput(true);
setInteractivePromptShown(true);
focusXtermHelper();
} finally {
setIsRunning(false);
}
};
// Send from the small input box: delegate to runCodeWithUpdatedInput to keep behavior uniform
const sendTerminalInput = async () => {
const line = (terminalInput || "").replace(/\r$/, "");
if (!line) {
// If there is no typed small-input but interactivePromptShown is true, just focus terminal
if (interactivePromptShown) {
focusXtermHelper();
}
return;
}
// show echo in output
setOutput((prev) => (prev ? prev + `\n> ${line}` : `> ${line}`));
setTerminalInput("");
// Use the unified runner that appends input and runs
await runCodeWithUpdatedInput(line);
};
// handle press Enter for small input
const onTerminalKeyDown = (e) => {
if (e.key === "Enter") {
e.preventDefault();
if (!awaitingInput) return;
sendTerminalInput();
}
};
// ---------- Agent functions (unchanged) ----------
const handleAskFix = async () => {
const node = getNodeByPath(tree, activePath);
if (!node || node.type !== "file") {
setOutput("Select a file to apply fix.");
return;
}
setIsFixing(true);
try {
const userHint = prompt.trim() ? `User request: ${prompt}` : "";
const reply = await askAgent(
`Improve, debug, or refactor this ${LANGUAGE_OPTIONS.find((l) => node.name.endsWith(l.ext))?.id || "file"} file.\n${userHint}\nReturn ONLY updated code, no explanation.\n\nCODE:\n${node.content}`
);
const updatedTree = updateFileContent(tree, node.path, reply);
setTree(updatedTree);
} catch (err) {
setOutput(String(err));
} finally {
setIsFixing(false);
}
};
const handleExplainSelection = async () => {
const node = getNodeByPath(tree, activePath);
if (!node || node.type !== "file") {
setExplanation("Select a file to explain.");
return;
}
setIsExplaining(true);
try {
const editor = editorRef.current;
let selectedCode = "";
try {
selectedCode = editor?.getModel()?.getValueInRange(editor.getSelection()) || "";
} catch {}
const code = selectedCode.trim() || node.content;
const userHint = prompt.trim() ? `Focus on: ${prompt}` : "Give a clear and simple explanation.";
const reply = await askAgent(
`Explain what this code does, any risks, and improvements.\n${userHint}\n\nCODE:\n${code}`
);
setExplanation(reply);
} catch (err) {
setExplanation(String(err));
} finally {
setIsExplaining(false);
}
};
// AI suggestions for continuation
const fetchAiSuggestions = async (code) => {
if (!code?.trim()) return;
try {
const reply = await askAgent(`Suggest possible next lines for continuation. Return 3 short snippets.\n${code}`);
setAiSuggestions(reply.split("\n").filter((l) => l.trim()));
} catch {
// ignore
}
};
// ---------- Search ----------
const handleSearchToggle = () => setSearchOpen(!searchOpen);
const handleSearchNow = () => {
if (!searchQuery) return;
const results = searchTree(tree, searchQuery);
alert(`Found ${results.length} results:\n` + JSON.stringify(results, null, 2));
};
// Editor change
const updateActiveFileContent = (value) => {
const node = getNodeByPath(tree, activePath);
if (!node) return;
const updated = updateFileContent(tree, activePath, value ?? "");
setTree(updated);
};
// Render tree
const renderTree = (node, depth = 0) => {
const isActive = node.path === activePath;
return (
<div key={node.path || node.name} style={{ paddingLeft: depth * 10 }}>
<div
className={`tree-item ${node.type} ${isActive ? "ide-file-item-active" : ""}`}
onClick={() => setActivePath(node.path)}
onContextMenu={(e) => {
e.preventDefault();
setActivePath(node.path);
setContextMenu({ x: e.pageX, y: e.pageY, file: node.path });
}}
style={{ display: "flex", alignItems: "center", gap: 8 }}
>
<span style={{ width: 18 }}>{node.type === "folder" ? "πŸ“" : "πŸ“„"}</span>
<span className="ide-file-name">{node.name}</span>
</div>
{node.children && node.children.map((c) => renderTree(c, depth + 1))}
</div>
);
};
const anyLoading = isRunning || isFixing || isExplaining;
// JSX
return (
<div className={`ide-root ${theme === "vs-dark" ? "ide-dark" : "ide-light"}`}>
<input ref={fileInputRef} id="file-import-input" type="file" style={{ display: "none" }} onChange={handleFileInputChange} />
<div className="ide-menubar">
<div className="ide-menubar-left">
<span className="ide-logo">βš™οΈ DevMate IDE</span>
<button onClick={handleNewFile} disabled={anyLoading}>πŸ“„ New File</button>
<button onClick={handleNewFolder} disabled={anyLoading}>πŸ“ New Folder</button>
<button onClick={handleRename} disabled={anyLoading}>✏️ Rename</button>
<button onClick={handleDelete} disabled={anyLoading}>πŸ—‘ Delete</button>
<button onClick={downloadFile} disabled={anyLoading}>πŸ“₯ Download</button>
<button onClick={() => downloadProjectZip()} disabled={anyLoading}>πŸ“¦ ZIP</button>
<button onClick={handleImportFileClick} disabled={anyLoading}>πŸ“€ Import File</button>
</div>
<div className="ide-menubar-right">
<button onClick={handleSearchToggle} disabled={anyLoading}>πŸ” Search</button>
<button onClick={handleRun} disabled={isRunning || anyLoading}>{isRunning ? "⏳ Running..." : "β–Ά Run"}</button>
<button onClick={handleAskFix} disabled={isFixing || anyLoading}>{isFixing ? "⏳ Fixing..." : "πŸ€– Fix"}</button>
<button onClick={handleExplainSelection} disabled={isExplaining || anyLoading}>{isExplaining ? "⏳ Explaining..." : "πŸ“– Explain"}</button>
<button onClick={() => setTheme((t) => (t === "vs-dark" ? "light" : "vs-dark"))} disabled={anyLoading}>
{theme === "vs-dark" ? "β˜€οΈ" : "πŸŒ™"}
</button>
</div>
</div>
{anyLoading && (
<div className="ide-progress-wrap">
<div className="ide-progress" />
</div>
)}
<div className="ide-body">
<div className="ide-sidebar">
<div className="ide-sidebar-header">
<span>EXPLORER</span>
<button className="ide-icon-button" onClick={handleNewFile} title="New File" disabled={anyLoading}>οΌ‹</button>
</div>
<div className="ide-file-list" style={{ padding: 6 }}>{renderTree(tree)}</div>
</div>
<div className="ide-main">
<div className="ide-editor-wrapper">
<Editor
height="100%"
theme={theme}
language={langMeta.monaco}
value={currentNode?.content || ""}
onChange={updateActiveFileContent}
onMount={(editor) => (editorRef.current = editor)}
onBlur={() => fetchAiSuggestions(currentNode?.content)}
options={{ minimap: { enabled: true }, fontSize: 14, scrollBeyondLastLine: false }}
/>
</div>
{aiSuggestions.length > 0 && (
<div className="ai-popup">
{aiSuggestions.map((s, i) => (
<div key={i} className="ai-suggest" onClick={() => updateFileContent(tree, activePath, (currentNode?.content || "") + "\n" + s)}>{s}</div>
))}
</div>
)}
<div className="ide-panels">
<div style={{ marginBottom: 8 }}>
<div style={{ fontSize: 12, color: "#ccc", marginBottom: 6 }}>Terminal</div>
<XTerm
output={output}
onData={(line) => {
const text = (line || "").replace(/\r$/, "");
if (!text) return;
// only auto-send when we previously showed a prompt OR are awaiting input
if (interactivePromptShown || awaitingInput) {
runCodeWithUpdatedInput(text);
} else {
// not an interactive session β€” you can still echo into small input if desired
setTerminalInput((prev) => (prev ? prev + text : text));
}
}}
/>
{/* When interactive program detected and waiting for user input */}
{awaitingInput && (
<div style={{ marginTop: 8, padding: 8, background: "#252526", border: "1px solid #333", borderRadius: 6 }}>
<div style={{ marginBottom: 6, color: "#ddd" }}>
This program appears to be interactive and requires console input.
</div>
<div style={{ display: "flex", gap: 8 }}>
<button
onClick={() => {
focusXtermHelper();
// ensure terminal is ready to accept typed input
}}
className="ide-button"
>
β–Ά Focus Terminal
</button>
<button
onClick={() => {
// start interactive session: clear output but keep accum
resetTerminal(true);
setOutput("[Interactive session started β€” type into the terminal]");
setAwaitingInput(true);
focusXtermHelper();
}}
className="ide-button"
>
β–Ά Start interactive session
</button>
<div style={{ color: "#999", alignSelf: "center" }}>Type & press Enter in terminal or use Send below.</div>
</div>
</div>
)}
{/* If not awaiting input show legacy small input for single-run */}
{!awaitingInput && (
<div style={{ display: "flex", gap: 6, marginTop: 6 }}>
<input className="ide-input-box" placeholder="(Optional) Program input for single-run" value={stdin} onChange={(e) => setStdin(e.target.value)} />
<div style={{ alignSelf: "center", color: "#999", fontSize: 12 }}>Press Run β†’ to execute</div>
</div>
)}
{/* Always show small input/send option so users can type without xterm if they prefer */}
<div style={{ display: "flex", gap: 6, marginTop: 8 }}>
<input
className="ide-input-box"
placeholder={awaitingInput ? "Type input and press Send (or press Enter in terminal)" : "Optional input (press Send to append and run)"}
value={terminalInput}
onChange={(e) => setTerminalInput(e.target.value)}
onKeyDown={(e) => {
if (e.key === "Enter") {
e.preventDefault();
sendTerminalInput();
}
}}
/>
<button onClick={sendTerminalInput} className="ide-button" disabled={isRunning}>{isRunning ? "⏳" : "Send"}</button>
</div>
</div>
{problems.length > 0 && (
<div className="ide-problems-panel">
<div>🚨 Problems ({problems.length})</div>
{problems.map((p, i) => <div key={i}>{p.path}:{p.line} β€” {p.message}</div>)}
</div>
)}
</div>
</div>
<div className="ide-right-panel">
<div className="ide-ai-header">πŸ€– AI Assistant</div>
<div className="ide-ai-section">
<label className="ide-ai-label">Instruction</label>
<textarea className="ide-agent-textarea" placeholder="Ask the AI (optimize, add tests, convert, etc.)" value={prompt} onChange={(e) => setPrompt(e.target.value)} />
</div>
<div className="ide-ai-buttons">
<button onClick={handleAskFix} disabled={isFixing || anyLoading}>{isFixing ? "⏳ Apply Fix" : "πŸ’‘ Apply Fix"}</button>
<button onClick={handleExplainSelection} disabled={isExplaining || anyLoading}>{isExplaining ? "⏳ Explaining" : "πŸ“– Explain Code"}</button>
</div>
{explanation && (
<div className="ide-ai-section">
<label className="ide-ai-label">Explanation</label>
<div className="ide-explain">{explanation}</div>
</div>
)}
</div>
</div>
{searchOpen && (
<div className="search-dialog">
<input placeholder="Search text..." onChange={(e) => setSearchQuery(e.target.value)} />
<button onClick={handleSearchNow}>Search</button>
</div>
)}
{contextMenu && (
<div className="ide-context-menu" style={{ top: contextMenu.y, left: contextMenu.x }} onMouseLeave={() => setContextMenu(null)}>
<div onClick={() => { setContextMenu(null); handleRename(); }}>✏️ Rename</div>
<div onClick={() => { setContextMenu(null); handleDelete(); }}>πŸ—‘ Delete</div>
<div onClick={() => { setContextMenu(null); downloadFile(); }}>πŸ“₯ Download</div>
</div>
)}
</div>
);
}
export default App;