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import { api } from '../api';
import { MSG_TYPES } from '../constants';
import { vscodeNative } from '../vscodeNative';
const PARAM_SHIM = `<script>
window.simParams={};
window._paramSetters={};
window.registerParam=function(name,setter){window._paramSetters[name]=setter;if(name in window.simParams)setter(window.simParams[name]);};
window.addEventListener('message',function(e){
if(e.data&&e.data.type==='PARAM_UPDATE'){
var p=e.data.params;
Object.assign(window.simParams,p);
for(var k in p){window[k]=p[k];if(window._paramSetters[k])window._paramSetters[k](p[k]);}
window.dispatchEvent(new CustomEvent('paramupdate',{detail:p}));
}
});
</script>`;
export function useAgentChat(deps) {
const {
knowledge, setKnowledge,
workspaceFiles, workspaceCache, getWorkspaceFileContext,
researchMission, setResearchMission,
researchRoadmap, setResearchRoadmap,
models, selectedModelId, selectedModelObj,
selectableModels, deepResearchModels,
getProvider, getModelId,
speakText,
notify, logAgentAction,
setAgentLog,
journalEntries, setJournalEntries,
backgroundTasks, setBackgroundTasks,
} = deps;
const [input, setInput] = useState('');
const [messages, setMessages] = useState([]);
const [isLoading, setIsLoading] = useState(false);
const [selectedArtifact, setSelectedArtifact] = useState(null);
const [isAutoLoopEnabled, setIsAutoLoopEnabled] = useState(false);
const [isAutoRunning, setIsAutoRunning] = useState(false);
const [isWaitingForTelemetry, setIsWaitingForTelemetry] = useState(false);
const [currentObjective, setCurrentObjective] = useState({ task: '', wait: 0 });
const [telemetryLog, setTelemetryLog] = useState([]);
const [cycleCount, setCycleCount] = useState(0);
const [timeLeft, setTimeLeft] = useState(0);
const [imageContext, setImageContext] = useState(null);
const [runtimeParams, setRuntimeParams] = useState({});
const [paramValues, setRuntimeParamValues] = useState({});
const [webGroundingEnabled, setWebGroundingEnabled] = useState(false);
const messagesRef = useRef(messages);
messagesRef.current = messages;
const scrollRef = useRef(null);
const debugTimeoutRef = useRef(null);
const autonomyTimeoutRef = useRef(null);
const timerIntervalRef = useRef(null);
const lastTelemetryTimeRef = useRef(0);
const iframeRef = useRef(null);
const lastFinalCodeRef = useRef('');
const autoFixedArtifacts = useRef(new Set());
const observerInputRef = useRef(null);
const isLoadingRef = useRef(isLoading);
isLoadingRef.current = isLoading;
const loadingTimeoutRef = useRef(null);
const selectedArtifactRef = useRef(selectedArtifact);
selectedArtifactRef.current = selectedArtifact;
const isAutoRunningRef = useRef(isAutoRunning);
isAutoRunningRef.current = isAutoRunning;
const cycleCountRef = useRef(cycleCount);
cycleCountRef.current = cycleCount;
const injectParamShim = (html) => {
Iif (!html) return html;
try {
const doc = new DOMParser().parseFromString(html, 'text/html');
const script = doc.createElement('script');
script.textContent = PARAM_SHIM.replace(/<\/?script[^>]*>/gi, '');
(doc.head || doc.documentElement).appendChild(script);
return '<!DOCTYPE html>' + doc.documentElement.outerHTML;
} catch {
const lower = html.toLowerCase();
const headClose = lower.indexOf('</head>');
if (headClose !== -1) return html.slice(0, headClose) + PARAM_SHIM + html.slice(headClose);
const bodyOpen = lower.indexOf('<body');
if (bodyOpen !== -1) return html.slice(0, bodyOpen) + PARAM_SHIM + html.slice(bodyOpen);
return PARAM_SHIM + html;
}
};
const loadImageFile = (file) => {
if (!file || !file.type.startsWith('image/')) return;
const reader = new FileReader();
reader.onload = (ev) => {
setImageContext(ev.target.result);
logAgentAction("Observer", "Visual context loaded.");
};
reader.readAsDataURL(file);
};
const handleImageUpload = (e) => { loadImageFile(e.target.files[0]); };
const handlePaste = (e) => {
const items = e.clipboardData?.items;
if (!items) return;
for (const item of items) {
if (item.type.startsWith('image/')) {
e.preventDefault();
loadImageFile(item.getAsFile());
return;
}
}
};
const handleParamChange = (key, value) => {
setRuntimeParamValues(prev => ({ ...prev, [key]: value }));
};
useEffect(() => {
Iif (iframeRef.current && Object.keys(paramValues).length > 0) {
iframeRef.current.contentWindow.postMessage({ type: 'PARAM_UPDATE', params: paramValues }, '*');
}
}, [paramValues]);
const captureSimScreenshot = async () => {
const iframe = iframeRef.current;
if (!iframe) return null;
try {
const iframeDoc = iframe.contentDocument || iframe.contentWindow.document;
if (!iframe.contentWindow.html2canvas) {
const script = iframeDoc.createElement('script');
script.src = 'https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js';
await new Promise((resolve, reject) => {
script.onload = resolve;
script.onerror = reject;
iframeDoc.head.appendChild(script);
});
}
const canvas = await iframe.contentWindow.html2canvas(iframeDoc.body, { backgroundColor: '#000', scale: 2 });
return canvas.toDataURL('image/png');
} catch (err) {
console.warn('Screenshot capture failed:', err.message);
return null;
}
};
// --- Send user message to extension host agent ---
const handleRerun = (assistantMsg) => {
Iif (isLoadingRef.current) return;
const idx = messagesRef.current.findIndex(m => m.id === assistantMsg.id);
let prompt = '';
for (let i = idx - 1; i >= 0; i--) {
Eif (messagesRef.current[i].role === 'user') {
prompt = messagesRef.current[i].content;
break;
}
}
Iif (!prompt) return;
setIsLoading(true);
setAgentLog([]);
Iif (loadingTimeoutRef.current) clearTimeout(loadingTimeoutRef.current);
loadingTimeoutRef.current = setTimeout(() => {
if (isLoadingRef.current) {
setIsLoading(false);
notify('Agent request timed out. Try again.');
}
}, 120000);
Eif (vscodeNative.isVscode) {
window.vscode.postMessage({
type: 'agentTask',
prompt,
modelId: selectedModelId,
options: {
mode: selectedArtifactRef.current ? 'ENHANCE' : 'CREATE',
existingCode: selectedArtifactRef.current?.content || '',
cycleCount: cycleCountRef.current,
autoLoop: isAutoLoopEnabled,
},
knowledge,
messages: messagesRef.current.slice(-10),
roadmap: researchRoadmap,
mission: researchMission,
workspaceFiles,
telemetryLog,
});
}
};
const handleSend = async () => {
const hasActiveBG = backgroundTasks.some(t => t.status === 'running');
Iif (!input.trim() || isLoadingRef.current || hasActiveBG) return;
Iif (autonomyTimeoutRef.current) clearTimeout(autonomyTimeoutRef.current);
Iif (timerIntervalRef.current) clearInterval(timerIntervalRef.current);
const activeMessages = messages.filter(m => !m.archived);
const hasExistingWork = selectedArtifact && activeMessages.some(m => m.role === 'assistant' && !m.archived);
const prompt = input;
setInput('');
setIsAutoRunning(false);
setIsWaitingForTelemetry(false);
setIsLoading(true);
setAgentLog([]);
Iif (loadingTimeoutRef.current) clearTimeout(loadingTimeoutRef.current);
loadingTimeoutRef.current = setTimeout(() => {
if (isLoadingRef.current) {
console.warn('Agent loading timeout — resetting');
setIsLoading(false);
setIsAutoRunning(false);
notify('Agent request timed out. Try again.');
logAgentAction("Timeout", "No response received — input re-enabled");
}
}, 120000);
try {
const savedMsg = await api.addMessage({ role: 'user', content: prompt, timestamp: Date.now() });
setMessages(prev => [...prev, savedMsg]);
} catch (err) {
console.error('Failed to save message:', err);
const localMsg = { id: 'local-' + Date.now(), role: 'user', content: prompt, timestamp: Date.now() };
setMessages(prev => [...prev, localMsg]);
}
Eif (!hasExistingWork) {
setResearchRoadmap([]);
setResearchMission('');
setCycleCount(0);
setCurrentObjective({ task: '', wait: 0 });
lastFinalCodeRef.current = '';
api.updateWorkspace({ researchMission: '', researchRoadmap: [], cycleCount: 0 }).catch(() => {});
}
if (vscodeNative.isVscode) {
window.vscode.postMessage({
type: 'agentTask',
prompt,
modelId: selectedModelId,
options: {
mode: hasExistingWork ? 'ENHANCE' : 'CREATE',
existingCode: hasExistingWork ? selectedArtifact.content : '',
cycleCount: cycleCountRef.current,
autoLoop: isAutoLoopEnabled,
},
knowledge,
messages: messagesRef.current.slice(-10),
roadmap: researchRoadmap,
mission: researchMission,
workspaceFiles,
telemetryLog,
});
} else E{
setIsLoading(false);
}
};
const forceNextStep = () => {
if (autonomyTimeoutRef.current) {
clearTimeout(autonomyTimeoutRef.current);
if (timerIntervalRef.current) clearInterval(timerIntervalRef.current);
autonomyTimeoutRef.current = null;
setIsWaitingForTelemetry(false);
}
logAgentAction("Manual Snap", "Skipping observation — asking now.");
if (vscodeNative.isVscode) {
window.vscode.postMessage({
type: 'agentAutoLoop',
existingCode: lastFinalCodeRef.current,
cycleCount: cycleCountRef.current,
telemetryLog,
});
}
};
// --- Listen for agent events from extension host ---
useEffect(() => {
const handleAgentEvent = (event) => {
const msg = event.data;
Iif (!msg || !msg.type) return;
switch (msg.type) {
case 'agent:thinking':
logAgentAction("Thinking", msg.data?.prompt?.substring(0, 80) || "Processing...");
break;
case 'agent:streaming':
if (msg.data?.token) {
const preview = msg.data.token.length > 120 ? '...' + msg.data.token.slice(-120) : msg.data.token;
logAgentAction("Streaming", preview.replace(/\n/g, ' '));
}
break;
case 'agent:complete':
Iif (loadingTimeoutRef.current) clearTimeout(loadingTimeoutRef.current);
Eif (msg.data?.message) {
setMessages(prev => [...prev, msg.data.message]);
if (msg.data.message.content && /<html/i.test(msg.data.message.content)) {
setSelectedArtifact(msg.data.message);
lastFinalCodeRef.current = msg.data.message.content;
}
}
Iif (msg.data?.mission) setResearchMission(msg.data.mission);
Iif (msg.data?.roadmap) setResearchRoadmap(msg.data.roadmap);
Iif (msg.data?.knowledge) {
for (const k of msg.data.knowledge) {
setKnowledge(prev => [...prev, k]);
}
}
Iif (msg.data?.journal) {
for (const j of msg.data.journal) {
setJournalEntries(prev => [...prev, j]);
}
}
setIsLoading(false);
logAgentAction("Complete", "Agent turn finished");
break;
case 'agent:error':
Iif (loadingTimeoutRef.current) clearTimeout(loadingTimeoutRef.current);
setIsLoading(false);
setIsAutoRunning(false);
notify(msg.data?.error || 'Agent error');
logAgentAction("Error", msg.data?.error || 'Unknown error');
break;
case 'tool:start':
logAgentAction(`Tool: ${msg.data?.tool || 'unknown'}`, "Executing...");
break;
case 'tool:complete':
logAgentAction(`Tool: ${msg.data?.tool || 'unknown'}`, msg.data?.result?.substring(0, 100) || "Done");
break;
case 'tool:error':
logAgentAction(`Tool Error`, msg.data?.error || 'Unknown');
break;
case 'cycle:start':
setIsAutoRunning(true);
setCycleCount(msg.data?.cycleCount || 0);
logAgentAction("Autonomous Cycle", `Starting cycle ${msg.data?.cycleCount || 0}`);
break;
case 'cycle:complete':
setIsAutoRunning(false);
logAgentAction("Cycle Complete", msg.data?.reason || 'Done');
break;
case 'cycle:autonomous_tick':
setIsWaitingForTelemetry(true);
setIsAutoRunning(true);
Eif (msg.data?.waitTime) {
setTimeLeft(Math.ceil(msg.data.waitTime / 1000));
Iif (timerIntervalRef.current) clearInterval(timerIntervalRef.current);
timerIntervalRef.current = setInterval(() => {
setTimeLeft(prev => Math.max(0, prev - 1));
}, 1000);
}
logAgentAction("Observing", `Gathering telemetry for ${msg.data?.waitTime || 8000}ms...`);
break;
}
};
window.addEventListener('message', handleAgentEvent);
return () => window.removeEventListener('message', handleAgentEvent);
}, []);
// --- Iframe message handler (simulation events) ---
useEffect(() => {
const handleMessage = (event) => {
Iif (iframeRef.current && event.source !== iframeRef.current.contentWindow) return;
const { type } = event.data || {};
Iif (type === MSG_TYPES.NARRATE) speakText(event.data.text);
Iif (type === MSG_TYPES.TELEMETRY) {
const now = Date.now();
if (now - lastTelemetryTimeRef.current < 400) return;
lastTelemetryTimeRef.current = now;
const data = typeof event.data.data === 'object' ? JSON.stringify(event.data.data) : String(event.data.data);
setTelemetryLog(prev => [...prev, data].slice(-20));
logAgentAction("Telemetry Rx", data);
if (vscodeNative.isVscode) {
window.vscode.postMessage({ type: 'telemetryUpdate', data });
}
}
Iif (type === MSG_TYPES.ARTIFACT_ERROR) {
if (isLoadingRef.current || !selectedArtifactRef.current) return;
if (autoFixedArtifacts.current.has(selectedArtifactRef.current.id)) return;
if (debugTimeoutRef.current) clearTimeout(debugTimeoutRef.current);
debugTimeoutRef.current = setTimeout(() => {
const artifact = selectedArtifactRef.current;
if (!artifact) return;
autoFixedArtifacts.current.add(artifact.id);
logAgentAction("Self-Repair", "Stabilizing state...");
if (vscodeNative.isVscode) {
window.vscode.postMessage({
type: 'agentFixError',
error: event.data.error,
code: artifact.content,
});
}
debugTimeoutRef.current = null;
}, 3000);
}
Iif (type === MSG_TYPES.PARAMS_REGISTER) {
setRuntimeParams(event.data.params || {});
const defaults = {};
Object.entries(event.data.params || {}).forEach(([k, v]) => { defaults[k] = v.default ?? v.min ?? 0; });
setRuntimeParamValues(prev => ({ ...defaults, ...prev }));
logAgentAction("Params Registered", `${Object.keys(event.data.params || {}).length} variables`);
}
Iif (type === MSG_TYPES.SIMULATION_READY) {
logAgentAction("Sim Ready", event.data.info || "Simulation loaded");
}
Iif (type === MSG_TYPES.DATA_EXPORT) {
logAgentAction("Data Export", event.data.payload?.name || "Export received");
}
Iif (type === MSG_TYPES.STATE_SNAPSHOT) {
logAgentAction("State Snapshot", "Simulation state captured");
}
};
window.addEventListener('message', handleMessage);
return () => window.removeEventListener('message', handleMessage);
}, []);
// --- Auto-scroll ---
useEffect(() => {
Iif (scrollRef.current) scrollRef.current.scrollTop = scrollRef.current.scrollHeight;
}, [messages.length]);
// --- Keyboard shortcuts ---
useEffect(() => {
const handleKeyboard = (e) => {
if (!(e.metaKey || e.ctrlKey)) return;
const el = document.activeElement;
const isInput = el && (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT' || el.isContentEditable);
if (e.key === 'a' && isInput) {
e.preventDefault();
el.select?.();
} else if (e.key === 'c') {
e.preventDefault();
const text = window.getSelection()?.toString() || '';
if (text) navigator.clipboard.writeText(text);
} else if (e.key === 'x' && isInput) {
e.preventDefault();
const text = window.getSelection()?.toString() || '';
if (text) {
navigator.clipboard.writeText(text);
if (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') {
const start = el.selectionStart;
const end = el.selectionEnd;
const val = el.value;
const proto = el.tagName === 'TEXTAREA' ? window.HTMLTextAreaElement.prototype : window.HTMLInputElement.prototype;
const nativeSet = Object.getOwnPropertyDescriptor(proto, 'value')?.set;
nativeSet?.call(el, val.substring(0, start) + val.substring(end));
el.selectionStart = el.selectionEnd = start;
el.dispatchEvent(new Event('input', { bubbles: true }));
}
}
} else if (e.key === 'v' && isInput) {
e.preventDefault();
navigator.clipboard.readText().then(text => {
if (!text) return;
if (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') {
const start = el.selectionStart;
const end = el.selectionEnd;
const val = el.value;
const nativeInputValueSetter = Object.getOwnPropertyDescriptor(window.HTMLTextAreaElement.prototype, 'value')?.set || Object.getOwnPropertyDescriptor(window.HTMLInputElement.prototype, 'value')?.set;
nativeInputValueSetter?.call(el, val.substring(0, start) + text + val.substring(end));
el.selectionStart = el.selectionEnd = start + text.length;
el.dispatchEvent(new Event('input', { bubbles: true }));
}
});
} else if (e.key === 'z') {
e.preventDefault();
document.execCommand(e.shiftKey ? 'redo' : 'undo');
}
};
document.addEventListener('keydown', handleKeyboard, true);
return () => document.removeEventListener('keydown', handleKeyboard, true);
}, []);
// --- Notify extension host when auto-loop toggle changes ---
useEffect(() => {
if (vscodeNative.isVscode) {
window.vscode.postMessage({ type: 'agentSetAutoLoop', enabled: isAutoLoopEnabled });
}
}, [isAutoLoopEnabled]);
return {
input, setInput,
messages, setMessages,
isLoading, setIsLoading,
selectedArtifact, setSelectedArtifact,
isAutoLoopEnabled, setIsAutoLoopEnabled,
isAutoRunning, setIsAutoRunning,
isWaitingForTelemetry, setIsWaitingForTelemetry,
currentObjective, setCurrentObjective,
telemetryLog, setTelemetryLog,
cycleCount, setCycleCount,
timeLeft, setTimeLeft,
imageContext, setImageContext,
runtimeParams, setRuntimeParams,
paramValues, setRuntimeParamValues,
webGroundingEnabled, setWebGroundingEnabled,
messagesRef, scrollRef, debugTimeoutRef, autonomyTimeoutRef, timerIntervalRef,
lastTelemetryTimeRef, iframeRef, lastFinalCodeRef, autoFixedArtifacts, observerInputRef,
isLoadingRef, selectedArtifactRef, isAutoRunningRef, cycleCountRef,
injectParamShim,
loadImageFile, handleImageUpload, handlePaste,
handleParamChange,
forceNextStep,
handleSend,
handleRerun,
captureSimScreenshot,
};
}
|