@echo off
title BankBot AI — Launcher

echo.
echo  ============================================================
echo   BankBot AI  ^|  One-Click Launcher
echo   Frontend  : http://localhost:3000
echo   Backend   : http://localhost:8000
echo   API Docs  : http://localhost:8000/docs
echo  ============================================================
echo.

REM ── Step 1: Check Python ────────────────────────────────────────────────────
python --version >nul 2>&1
if errorlevel 1 (
    echo  [ERROR] Python not found.
    echo          Install Python 3.11+ from https://python.org
    echo          During install, tick "Add Python to PATH"
    pause
    exit /b 1
)
echo  [OK] Python found

REM ── Step 2: Check Node.js ───────────────────────────────────────────────────
node --version >nul 2>&1
if errorlevel 1 (
    echo  [ERROR] Node.js not found.
    echo          Install Node.js 18+ from https://nodejs.org
    pause
    exit /b 1
)
echo  [OK] Node.js found

REM ── Step 3: Create backend venv if missing ──────────────────────────────────
if not exist "backend\venv\Scripts\python.exe" (
    echo.
    echo  [SETUP] Creating Python virtual environment...
    python -m venv backend\venv
    if errorlevel 1 (
        echo  [ERROR] Failed to create virtual environment.
        pause
        exit /b 1
    )
    echo  [OK] Virtual environment created
) else (
    echo  [OK] Virtual environment exists
)

REM ── Step 4: Install backend dependencies if not yet installed ───────────────
backend\venv\Scripts\python.exe -c "import uvicorn" >nul 2>&1
if errorlevel 1 (
    echo.
    echo  [SETUP] Installing backend dependencies ^(first run, ~2 min^)...
    backend\venv\Scripts\pip.exe install -r backend\requirements.txt --quiet
    if errorlevel 1 (
        echo  [ERROR] Failed to install backend dependencies.
        pause
        exit /b 1
    )
    echo  [OK] Backend dependencies installed
) else (
    echo  [OK] Backend dependencies already installed
)

REM ── Step 5: Install frontend dependencies if missing ────────────────────────
if not exist "frontend\node_modules\next\package.json" (
    echo.
    echo  [SETUP] Installing frontend dependencies ^(first run, ~1 min^)...
    cd frontend
    npm install --legacy-peer-deps --silent
    if errorlevel 1 (
        echo  [ERROR] Failed to install frontend dependencies.
        cd ..
        pause
        exit /b 1
    )
    cd ..
    echo  [OK] Frontend dependencies installed
) else (
    echo  [OK] Frontend dependencies already installed
)

REM ── Step 6: Create backend .env if missing ──────────────────────────────────
if not exist "backend\.env" (
    echo.
    echo  [SETUP] Creating backend\.env ...
    (
        echo USE_SQLITE=true
        echo JWT_SECRET_KEY=bankbot-local-dev-secret-change-in-prod
        echo ACCESS_TOKEN_EXPIRE_MINUTES=60
        echo BACKEND_CORS_ORIGINS=["http://localhost:3000"]
    ) > backend\.env
    echo  [OK] backend\.env created
    echo  [TIP] Open backend\.env and add your GROQ_API_KEY for live AI chat
    echo          Get a free key at: https://console.groq.com/keys
) else (
    echo  [OK] backend\.env exists
)

REM ── Step 7: Seed demo data only if database is empty ────────────────────────
echo.
echo  [1/2] Checking demo data...
backend\venv\Scripts\python.exe -c "import sys,os; sys.path.insert(0,'backend'); os.chdir('backend'); os.environ.setdefault('USE_SQLITE','true'); from app.database.database import SessionLocal; from app.database.models import User; db=SessionLocal(); c=db.query(User).count(); db.close(); sys.exit(0 if c>0 else 1)" >nul 2>&1
if errorlevel 1 (
    echo  [SEED] Seeding demo account ^(alex@bankbot.dev^)...
    cd backend
    call venv\Scripts\activate.bat
    python app\scripts\seed_demo.py
    if errorlevel 1 (
        echo  [WARN] Seed had warnings — continuing anyway
    ) else (
        echo  [OK] Demo account seeded
    )
    cd ..
) else (
    echo  [OK] Demo data already present — skipping seed
)

REM ── Step 8: Free ports 3000 and 8000 if already occupied ────────────────────
echo.
echo  [CLEAN] Freeing ports 3000 and 8000...
for /f "tokens=5" %%a in ('netstat -ano 2^>nul ^| findstr ":3000 " ^| findstr "LISTENING"') do (
    taskkill /PID %%a /F >nul 2>&1
)
for /f "tokens=5" %%a in ('netstat -ano 2^>nul ^| findstr ":8000 " ^| findstr "LISTENING"') do (
    taskkill /PID %%a /F >nul 2>&1
)
echo  [OK] Ports are free

REM ── Step 9: Start backend in its own window ──────────────────────────────────
echo.
echo  [2/2] Launching services...
start "BankBot Backend" cmd /k "title BankBot Backend (port 8000) & cd /d "%~dp0backend" & call venv\Scripts\activate.bat & echo. & echo  Backend: http://localhost:8000 & echo  Docs:    http://localhost:8000/docs & echo  Press Ctrl+C to stop. & echo. & uvicorn app.main:app --host 0.0.0.0 --port 8000 --reload"

REM ── Step 10: Wait for backend to be ready (max 30 seconds) ──────────────────
echo  [WAIT] Waiting for backend to start...
set TRIES=0
:WAIT_BACKEND
set /a TRIES=%TRIES%+1
if %TRIES% GTR 30 goto BACKEND_TIMEOUT
timeout /t 1 /nobreak >nul
curl -s -o nul http://localhost:8000/health
if errorlevel 1 goto WAIT_BACKEND
echo  [OK] Backend is ready ^(took %TRIES% seconds^)
goto BACKEND_READY

:BACKEND_TIMEOUT
echo  [WARN] Backend taking longer than usual — continuing anyway

:BACKEND_READY

REM ── Step 11: Start frontend in its own window ────────────────────────────────
start "BankBot Frontend" cmd /k "title BankBot Frontend (port 3000) & cd /d "%~dp0frontend" & echo. & echo  Frontend: http://localhost:3000 & echo  Press Ctrl+C to stop. & echo. & npm run dev"

REM ── Step 12: Wait for frontend to compile, then open browser ─────────────────
echo  [WAIT] Waiting for frontend to compile ^(~8 seconds^)...
timeout /t 8 /nobreak >nul
start "" http://localhost:3000

REM ── All done ──────────────────────────────────────────────────────────────────
echo.
echo  ============================================================
echo   BankBot AI is running!
echo.
echo   Frontend   :  http://localhost:3000
echo   Backend    :  http://localhost:8000
echo   API Docs   :  http://localhost:8000/docs
echo   Metrics    :  http://localhost:8000/api/metrics
echo   Health     :  http://localhost:8000/health
echo.
echo   Demo Login :
echo     Email    :  alex@bankbot.dev
echo     Password :  BankBot2026!
echo.
echo   Two terminal windows are now open:
echo     "BankBot Backend"  — close to stop the API
echo     "BankBot Frontend" — close to stop the UI
echo.
echo   Run this file again any time to restart.
echo  ============================================================
echo.
pause