import sys
import json

def generate_plan():
    print("Sequential Thinking Phase:")
    print("1. Analyze the request: The user wants to add a 'vision' tab to the chat UI.")
    print("   - Currently: Chat UI exists for text interaction.")
    print("   - Goal: Add a second tab for 'vision', streaming screenshots/VNC/visual data seamlessly.")
    print("   - The process must keep running seamlessly while switching tabs.")
    print("2. Architecture & Functionality:")
    print("   - Frontend: Update ChatView to have tabs (Chat | Vision).")
    print("     - 'Vision' tab needs a component to display streamed images/VNC.")
    print("     - The WebSocket connection in `app.py`/`ws.py` currently handles run streams.")
    print("     - We need a way to receive visual data (base64 images or VNC URL) via WebSocket or a separate endpoint.")
    print("     - Given `FaraWebSurfer` and `VncDockerPlaywrightBrowser`, visual data might already be captured or accessible.")
    print("   - Backend:")
    print("     - FastAPI handles WebSocket for runs. Need to ensure visual data from `FaraWebSurfer` or similar agents is sent over WS.")
    print("     - Or expose an endpoint to fetch the latest screenshot / VNC stream for a run.")
    print("     - VNC streaming could be an iframe to a noVNC instance if the docker container exposes it.")
    print("3. APIs & Integrations:")
    print("     - Backend: Update WS manager to broadcast screenshots if agents yield them.")
    print("     - Frontend: Listen to WS messages of type 'screenshot' or 'visual_data', and update the Vision tab.")
    print("     - Alternatively, an endpoint `/api/runs/{run_id}/vision` could return the VNC URL or latest screenshot.")
    print("4. Iteration:")
    print("     - The simplest robust approach for 'streaming the screenshots, or no vnc' is:")
    print("       a) Frontend: Add Tabs to Chat UI (Tabs: Chat, Vision).")
    print("       b) Vision Tab: If VNC is available, show an iframe to the VNC URL. If screenshots are streaming, show an image tag updated via WS.")
    print("       c) Backend: Define an API to get the vision stream info for a session/run.")

    return """
1. **Project Description**
   - Vision: Add a seamlessly integrated 'Vision' tab in the Magentic-UI to observe agents' visual interactions (screenshots or VNC) in real-time.
   - Integration: The frontend `ChatView` will be updated to include tabs (Chat / Vision). The Vision tab will subscribe to visual data via WebSocket or display a VNC iframe.
   - FastAPI Setup: 
     - Use existing `/api/ws/runs/{run_id}` for streaming screenshot events, or add `/api/runs/{run_id}/vision` to get VNC connection details.

2. **Tasks and Tests**
   - Task 1 (Backend): Expose VNC/Vision info endpoint.
     - Modify `src/magentic_ui/backend/web/routes/runs.py` to add a `GET /runs/{run_id}/vision` endpoint returning VNC URL or stream status.
     - Test: Add a unit test in `tests/` checking if the endpoint returns valid connection info.
   - Task 2 (Backend WS): Broadcast screenshots.
     - Update WebSocketManager in `src/magentic_ui/backend/web/managers/websocket.py` to relay `screenshot` type messages from agents like `FaraWebSurfer`.
     - Test: Unit test the WebSocketManager to ensure `screenshot` messages are broadcasted properly.
   - Task 3 (Frontend): Implement Tabs in Chat UI.
     - Update `frontend/src/components/views/chat/chat.tsx` to wrap the chat interface in an Ant Design `<Tabs>` component (Chat vs Vision).
     - Test: Write a Playwright test ensuring the Tabs render and clicking 'Vision' switches the view.
   - Task 4 (Frontend): Implement Vision Component.
     - Create `frontend/src/components/views/chat/vision.tsx` to render an `<iframe>` for VNC or an `<img>` that updates when a `screenshot` WS message arrives.
     - Test: Write a Playwright test simulating a `screenshot` WS message and verifying the image source updates.

3. **Functionality Expectations**
   - User perspective: User clicks 'Vision' tab and sees exactly what the agent sees (browser viewport, desktop) via VNC or updating screenshots. Switching tabs doesn't interrupt the run.
   - Technical perspective: Agents emit visual state. Backend routes it to the frontend via WS or provides a VNC endpoint. Frontend maintains connection regardless of active tab.
   - Constraints: VNC requires Docker configuration exposing the noVNC port. Fallback to screenshots if VNC is unavailable.

4. **API Endpoints to be Exposed**
   - `GET /api/runs/{run_id}/vision`
     - Request: None
     - Response: `{ "status": true, "vnc_url": "ws://localhost:5900", "has_vnc": true }`
     - Auth: Inherits existing run access auth.
   - WebSocket `/api/ws/runs/{run_id}` (Existing, modified)
     - New message type from server: `{ "type": "screenshot", "data": "base64_encoded_image_string" }`

READY
"""

print(generate_plan())