@echo off
setlocal EnableExtensions EnableDelayedExpansion

title MicroLearning - Development Launcher
pushd "%~dp0"
set "PHPRC=%~dp0backend"

echo.
echo  MicroLearning Development Launcher
echo  ================================
echo.

if not exist "backend\artisan" (
    echo [ERROR] backend\artisan was not found.
    goto :fail
)

if not exist "frontend\package.json" (
    echo [ERROR] frontend\package.json was not found.
    goto :fail
)

where php >nul 2>&1 || (
    echo [ERROR] PHP is not available in PATH.
    goto :fail
)

where composer >nul 2>&1 || (
    echo [ERROR] Composer is not available in PATH.
    goto :fail
)

where node >nul 2>&1 || (
    echo [ERROR] Node.js is not available in PATH.
    goto :fail
)

where npm >nul 2>&1 || (
    echo [ERROR] npm is not available in PATH.
    goto :fail
)

if /I "%~1"=="--check" goto :check_only

if not exist "backend\.env" (
    echo [SETUP] Creating backend\.env...
    copy /Y "backend\.env.example" "backend\.env" >nul || goto :fail
)

if not exist "backend\vendor\autoload.php" (
    echo [SETUP] Installing backend dependencies...
    pushd "backend"
    call composer install --no-interaction --prefer-dist || goto :fail_nested
    popd
)

findstr /B /C:"APP_KEY=base64:" "backend\.env" >nul 2>&1 || (
    echo [SETUP] Generating application key...
    pushd "backend"
    php artisan key:generate --force || goto :fail_nested
    popd
)

if not exist "frontend\node_modules" (
    echo [SETUP] Installing frontend dependencies...
    pushd "frontend"
    call npm install || goto :fail_nested
    popd
)

echo [SETUP] Applying pending non-destructive migrations...
pushd "backend"
php artisan migrate --force || goto :fail_nested
popd

echo [START] Laravel API: http://127.0.0.1:8000
powershell -NoProfile -Command "if (Get-NetTCPConnection -LocalPort 8000 -State Listen -ErrorAction SilentlyContinue) { exit 0 } else { exit 1 }" >nul 2>&1
if errorlevel 1 (
    start "MicroLearning API" /min cmd /k "cd /d ""%~dp0backend"" && php -d upload_max_filesize=2G -d post_max_size=2050M -d max_execution_time=0 artisan serve --host=127.0.0.1 --port=8000 --no-reload"
) else (
    echo [OK] Port 8000 is already listening; reusing the current API process.
)

echo [START] React app: http://127.0.0.1:5173
powershell -NoProfile -Command "if (Get-NetTCPConnection -LocalPort 5173 -State Listen -ErrorAction SilentlyContinue) { exit 0 } else { exit 1 }" >nul 2>&1
if errorlevel 1 (
    start "MicroLearning Frontend" /min cmd /k "cd /d ""%~dp0frontend"" && npm run dev -- --host=127.0.0.1 --port=5173"
) else (
    echo [OK] Port 5173 is already listening; reusing the current frontend process.
)

echo [START] Background queue worker
powershell -NoProfile -Command "$phpProcesses = Get-CimInstance Win32_Process -Filter 'Name = ''php.exe''' -ErrorAction SilentlyContinue; if ($phpProcesses.CommandLine -like '*artisan queue:work*') { exit 0 } else { exit 1 }" >nul 2>&1
if errorlevel 1 (
    start "MicroLearning Queue" /min cmd /k "cd /d ""%~dp0backend"" && php artisan queue:work --tries=3 --timeout=600"
) else (
    echo [OK] Queue worker is already running.
)

echo [START] Background scheduler
powershell -NoProfile -Command "$phpProcesses = Get-CimInstance Win32_Process -Filter 'Name = ''php.exe''' -ErrorAction SilentlyContinue; if ($phpProcesses.CommandLine -like '*artisan schedule:work*') { exit 0 } else { exit 1 }" >nul 2>&1
if errorlevel 1 (
    start "MicroLearning Scheduler" /min cmd /k "cd /d ""%~dp0backend"" && php artisan schedule:work"
) else (
    echo [OK] Scheduler is already running.
)

echo [WAIT] Verifying API, frontend, and Vite proxy...
set /a ready_attempts=0
:wait_for_services
powershell -NoProfile -Command "try { $api = Invoke-WebRequest -UseBasicParsing -Uri 'http://127.0.0.1:8000/api/v1/health' -TimeoutSec 2; $front = Invoke-WebRequest -UseBasicParsing -Uri 'http://127.0.0.1:5173/' -TimeoutSec 2; $proxy = Invoke-WebRequest -UseBasicParsing -Uri 'http://127.0.0.1:5173/api/v1/health' -TimeoutSec 2; if ($api.StatusCode -eq 200 -and $front.StatusCode -eq 200 -and $proxy.StatusCode -eq 200) { exit 0 }; exit 1 } catch { exit 1 }" >nul 2>&1
if errorlevel 1 (
    set /a ready_attempts+=1
    if !ready_attempts! GEQ 30 (
        echo [ERROR] Services did not become healthy within 30 seconds.
        echo         Check the minimized API, Frontend, and Queue windows for details.
        goto :fail
    )
    timeout /t 1 /nobreak >nul
    goto :wait_for_services
)

echo [OK] API, frontend, and proxy health checks passed.
start "" "http://127.0.0.1:5173"

echo.
echo [OK] Development services were launched in separate windows.
echo      Close those windows or press Ctrl+C in each one to stop them.
popd
exit /b 0

:check_only
echo [OK] Project structure and required development tools are available.
popd
exit /b 0

:fail_nested
popd

:fail
echo.
echo [FAILED] The launcher could not complete startup.
echo          Review the error above, then run this file again.
popd
pause
exit /b 1