patch_auto_continue_v8.py

"""V8: Safe auto-continue via useEffect pattern (no hoisting issues)."""

import os

events_ts = "/source/frontend/src/types/events.ts"
sse_ts = "/source/frontend/src/lib/sse-chat-transport.ts"
hook_ts = "/source/frontend/src/hooks/useAgentChat.ts"
input_tsx = "/source/frontend/src/components/Chat/ChatInput.tsx"
session_tsx = "/source/frontend/src/components/SessionChat.tsx"
agent_py = "/app/agent/core/agent_loop.py"


def patch_events():
    with open(events_ts) as f:
        c = f.read()
    if "'task_incomplete'" not in c:
        c = c.replace(
            "  | 'interrupted'",
            "  | 'interrupted'\n  | 'task_incomplete'"
        )
        with open(events_ts, 'w') as f: f.write(c)
    print("OK: events.ts")


def patch_sse():
    with open(sse_ts) as f:
        c = f.read()
    
    if "onTaskIncomplete:" not in c:
        c = c.replace(
            "  onInterrupted: () => void;",
            "  onInterrupted: () => void;\n  onTaskIncomplete: (incompletePlan: Array<{ id: string; content: string; status: string }>) => void;"
        )
    
    if "case 'task_incomplete'" not in c:
        case_handler = """      case 'task_incomplete':
          sideChannel.onTaskIncomplete(
            (event.data?.incomplete_plan as Array<{ id: string; content: string; status: string }>) || [],
          );
          break;

        default:"""
        c = c.replace("\n        default:", "\n" + case_handler)
    
    with open(sse_ts, 'w') as f: f.write(c)
    print("OK: sse.ts")


def patch_hook():
    with open(hook_ts) as f:
        c = f.read()
    
    # 1. Import useState
    if "useState" not in c:
        c = c.replace(
            "import { useCallback, useEffect, useMemo, useRef } from 'react';",
            "import { useCallback, useEffect, useMemo, useRef, useState } from 'react';"
        )
    
    # 2. State after callbacksRef
    state = """
  // Auto-continue state for free models
  const [_showAc, _setShowAc] = useState(false);
  const _acPlanRef = useRef<Array<{ id: string; content: string; status: string }>>([]);"""
    if "_showAc" not in c:
        c = c.replace(
            "callbacksRef.current = { onReady, onError, onSessionDead };",
            "callbacksRef.current = { onReady, onError, onSessionDead };" + state
        )
    
    # 3. onTaskIncomplete in interface
    if "onTaskIncomplete:" not in c:
        c = c.replace(
            "  onInterrupted: () => void;",
            "  onInterrupted: () => void;\n  onTaskIncomplete: (incompletePlan: Array<{ id: string; content: string; status: string }>) => void;"
        )
    
    # 4. Handler in sideChannel (only set state + ref, no chat.sendMessage)
    handler = """      onTaskIncomplete: (incompletePlan: Array<{ id: string; content: string; status: string }>) => {
        _acPlanRef.current = incompletePlan;
        _setShowAc(true);
      },
      onInterrupted: () => { /* no-op */ },"""
    
    if "onTaskIncomplete: (incompletePlan" not in c:
        old = '      onInterrupted: () => { /* no-op \u2014 handled by stop() caller */ },'
        if old in c:
            c = c.replace(old, handler)
        else:
            c = c.replace('      onInterrupted: () => { /* no-op */ },', handler)
    
    # 5. useEffect to watch _showAc - runs timer, calls chat.sendMessage via chatActionsRef
    effect = """
  // Auto-continue effect: when _showAc becomes true, start 10s timer
  useEffect(() => {
    if (!_showAc) return;
    const timer = setTimeout(() => {
      const plan = _acPlanRef.current;
      const setMsgs = chatActionsRef.current.setMessages;
      const msgs = chatActionsRef.current.messages;
      if (setMsgs && plan.length > 0) {
        const planStr = plan.map(i => `- ${i.content}`).join('\\\\n');
        const newMsg = { id: 'ac-' + Date.now(), role: 'user' as const, parts: [{ type: 'text' as const, text: `[TIẾP TỤC] Task chưa hoàn thành:\\\\n${planStr}` }], content: '' };
        setMsgs([...msgs, newMsg]);
      }
      _setShowAc(false);
    }, 10000);
    return () => clearTimeout(timer);
  }, [_showAc]);
"""
    if "Auto-continue effect" not in c:
        # Insert before return
        c = c.replace("\n  return {\n    messages: chat.messages,", effect + "\n  return {\n    messages: chat.messages,")
    
    # 6. Cancel + return
    cancel = """
  const _acCancel = useCallback(() => { _setShowAc(false); }, []);"""
    if "_acCancel" not in c:
        c = c.replace("\n  return {\n    messages: chat.messages,", cancel + "\n  return {\n    messages: chat.messages,")
    if "_showAc," not in c:
        c = c.replace(
            "refreshMessages,\n  };",
            "refreshMessages,\n    _showAc,\n    _acCancel,\n  };"
        )
    
    with open(hook_ts, 'w') as f: f.write(c)
    print("OK: useAgentChat.ts")


def patch_chat_input():
    with open(input_tsx) as f:
        c = f.read()
    
    if "Button" not in c:
        c = c.replace("  Tooltip,", "  Tooltip,\n  Button,")
    
    if "_showAc" not in c:
        old_iface = """interface ChatInputProps {
  sessionId?: string;
  initialModelPath?: string | null;
  onSend: (text: string) => void;
  onStop?: () => void;
  onDatasetUploaded?: () => Promise<boolean> | boolean;
  isProcessing?: boolean;
  disabled?: boolean;
  placeholder?: string;
}"""
        new_iface = """interface ChatInputProps {
  sessionId?: string;
  initialModelPath?: string | null;
  onSend: (text: string) => void;
  onStop?: () => void;
  onDatasetUploaded?: () => Promise<boolean> | boolean;
  isProcessing?: boolean;
  disabled?: boolean;
  placeholder?: string;
  _showAc?: boolean;
  _acCancel?: () => void;
}"""
        c = c.replace(old_iface, new_iface)
        
        old_props = "placeholder = 'Ask anything...' }: ChatInputProps) {"
        new_props = "placeholder = 'Ask anything...', _showAc = false, _acCancel }: ChatInputProps) {"
        if old_props not in c:
            old_props2 = "placeholder = 'Ask anything...' }: ChatInputProps) {"
            new_props2 = "placeholder = 'Ask anything...', _showAc = false, _acCancel }: ChatInputProps) {"
            c = c.replace(old_props2, new_props2)
        else:
            c = c.replace(old_props, new_props)
    
    if "T\u1ea1m d\u1eebng" not in c:
        btn = """
        {_showAc && _acCancel && (
          <Box sx={{ display: 'flex', justifyContent: 'center', mt: 1 }}>
            <Button variant="outlined" size="small" onClick={_acCancel}
              sx={{ textTransform: 'none', fontSize: '0.7rem', opacity: 0.7, '&:hover': { opacity: 1 } }}>
              T\u1ea1m d\u1eebng t\u1ef1 \u0111\u1ed9ng ti\u1ebfp t\u1ee5c (10s)
            </Button>
          </Box>
        )}
"""
        if "<JobsUpgradeDialog" in c:
            c = c.replace("<JobsUpgradeDialog", btn + "\n        <JobsUpgradeDialog")
    
    with open(input_tsx, 'w') as f: f.write(c)
    print("OK: ChatInput.tsx")


def patch_session():
    if not os.path.exists(session_tsx):
        print(f"SKIP: {session_tsx}")
        return
    with open(session_tsx) as f:
        c = f.read()
    if "_showAc" not in c:
        c = c.replace("<ChatInput ", "<ChatInput _showAc={_showAc} _acCancel={_acCancel} ")
    with open(session_tsx, 'w') as f: f.write(c)
    print("OK: SessionChat.tsx")


def patch_agent():
    if not os.path.exists(agent_py):
        print(f"SKIP: {agent_py}")
        return
    with open(agent_py) as f:
        c = f.read()
    
    if "_unfinished_plan" not in c:
        fn = """
def _unfinished_plan(s: Session) -> list[dict[str, str]]:
    p = getattr(s, "current_plan", None) or []
    return [it for it in p if it.get("status") in ("pending", "in_progress")]
"""
        c = c.replace("class Handlers:", fn + "\n\nclass Handlers:")
    
    if "task_incomplete" not in c:
        check = """
            # Auto-continue detection
            if not llm_result.tool_calls_acc and llm_result.content:
                unfinished = _unfinished_plan(session)
                if unfinished:
                    await session.send_event(Event(event_type="task_incomplete", data={"incomplete_plan": unfinished}))
"""
        marker = "  # -- End of turn --"
        if marker in c:
            c = c.replace(marker, check + "\n" + marker)
    
    with open(agent_py, 'w') as f: f.write(c)
    print("OK: agent_loop.py")


if __name__ == "__main__":
    patch_events()
    patch_sse()
    patch_hook()
    patch_chat_input()
    patch_session()
    patch_agent()
    print("\nDONE: V8 - safe useEffect pattern")