# GSPro Remote Development Script
# Starts both backend and frontend servers for development

Write-Host "GSPro Remote Development Environment" -ForegroundColor Green
Write-Host "=====================================" -ForegroundColor Green
Write-Host ""

# Check if Python is installed
$pythonVersion = python --version 2>$null
if (-not $pythonVersion) {
    Write-Host "ERROR: Python is not installed or not in PATH" -ForegroundColor Red
    Write-Host "Please install Python 3.11+ from https://www.python.org/" -ForegroundColor Yellow
    exit 1
}
Write-Host "✓ Python found: $pythonVersion" -ForegroundColor Green

# Check if Node.js is installed
$nodeVersion = node --version 2>$null
if (-not $nodeVersion) {
    Write-Host "ERROR: Node.js is not installed or not in PATH" -ForegroundColor Red
    Write-Host "Please install Node.js 20+ from https://nodejs.org/" -ForegroundColor Yellow
    exit 1
}
Write-Host "✓ Node.js found: $nodeVersion" -ForegroundColor Green

# Check if npm is installed
$npmVersion = npm --version 2>$null
if (-not $npmVersion) {
    Write-Host "ERROR: npm is not installed or not in PATH" -ForegroundColor Red
    exit 1
}
Write-Host "✓ npm found: $npmVersion" -ForegroundColor Green
Write-Host ""

# Get the script directory (project root)
$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$projectRoot = Split-Path -Parent $scriptDir
$backendDir = Join-Path $projectRoot "backend"
$frontendDir = Join-Path $projectRoot "frontend"

# Function to check if a port is in use
function Test-Port {
    param($port)
    $tcpClient = New-Object System.Net.Sockets.TcpClient
    try {
        $tcpClient.Connect("localhost", $port)
        $tcpClient.Close()
        return $true
    } catch {
        return $false
    }
}

# Check if backend port is already in use
if (Test-Port 5005) {
    Write-Host "WARNING: Port 5005 is already in use. Backend server might already be running." -ForegroundColor Yellow
    Write-Host "Do you want to continue anyway? (Y/N): " -NoNewline
    $response = Read-Host
    if ($response -ne "Y" -and $response -ne "y") {
        exit 0
    }
}

# Check if frontend port is already in use
if (Test-Port 5173) {
    Write-Host "WARNING: Port 5173 is already in use. Frontend server might already be running." -ForegroundColor Yellow
    Write-Host "Do you want to continue anyway? (Y/N): " -NoNewline
    $response = Read-Host
    if ($response -ne "Y" -and $response -ne "y") {
        exit 0
    }
}

# Setup backend
Write-Host "Setting up Backend..." -ForegroundColor Cyan
Set-Location $backendDir

# Check if virtual environment exists
$venvPath = Join-Path $backendDir ".venv"
if (-not (Test-Path $venvPath)) {
    Write-Host "Creating Python virtual environment..." -ForegroundColor Yellow
    python -m venv .venv
    if ($LASTEXITCODE -ne 0) {
        Write-Host "ERROR: Failed to create virtual environment" -ForegroundColor Red
        exit 1
    }
}

# Activate virtual environment and install dependencies
Write-Host "Installing backend dependencies..." -ForegroundColor Yellow
$activateScript = Join-Path $venvPath "Scripts\Activate.ps1"
if (Test-Path $activateScript) {
    & $activateScript
} else {
    Write-Host "ERROR: Virtual environment activation script not found" -ForegroundColor Red
    exit 1
}

# Check if requirements are installed
$pipList = pip list 2>$null
if (-not ($pipList -like "*fastapi*")) {
    Write-Host "Installing Python packages..." -ForegroundColor Yellow
    pip install -e . 2>&1 | Out-Null
    if ($LASTEXITCODE -ne 0) {
        Write-Host "ERROR: Failed to install backend dependencies" -ForegroundColor Red
        Write-Host "Try running: pip install -e . manually in the backend directory" -ForegroundColor Yellow
        exit 1
    }
}

Write-Host "✓ Backend dependencies installed" -ForegroundColor Green

# Setup frontend
Write-Host ""
Write-Host "Setting up Frontend..." -ForegroundColor Cyan
Set-Location $frontendDir

# Check if node_modules exists
if (-not (Test-Path "node_modules")) {
    Write-Host "Installing frontend dependencies..." -ForegroundColor Yellow
    npm install 2>&1 | Out-Null
    if ($LASTEXITCODE -ne 0) {
        Write-Host "ERROR: Failed to install frontend dependencies" -ForegroundColor Red
        Write-Host "Try running: npm install manually in the frontend directory" -ForegroundColor Yellow
        exit 1
    }
}

Write-Host "✓ Frontend dependencies installed" -ForegroundColor Green
Write-Host ""

# Start servers
Write-Host "Starting Development Servers..." -ForegroundColor Cyan
Write-Host "================================" -ForegroundColor Cyan
Write-Host ""

# Start backend server in a new PowerShell window
Write-Host "Starting Backend Server on http://localhost:5005" -ForegroundColor Green
$backendScript = @"
Write-Host 'GSPro Remote Backend Server' -ForegroundColor Cyan
Write-Host '===========================' -ForegroundColor Cyan
Write-Host ''
Write-Host 'Server: http://localhost:5005' -ForegroundColor Yellow
Write-Host 'API Docs: http://localhost:5005/api/docs' -ForegroundColor Yellow
Write-Host 'mDNS: http://gsproapp.local:5005' -ForegroundColor Yellow
Write-Host ''
Set-Location '$backendDir'
& '$activateScript'
python -m uvicorn app.main:app --reload --host 0.0.0.0 --port 5005 --log-level info
"@

$backendScriptPath = Join-Path $env:TEMP "gspro-backend.ps1"
$backendScript | Out-File -FilePath $backendScriptPath -Encoding UTF8
Start-Process powershell -ArgumentList "-NoExit", "-ExecutionPolicy", "Bypass", "-File", $backendScriptPath

# Give backend a moment to start
Start-Sleep -Seconds 2

# Start frontend server in a new PowerShell window
Write-Host "Starting Frontend Server on http://localhost:5173" -ForegroundColor Green
$frontendScript = @"
Write-Host 'GSPro Remote Frontend Server' -ForegroundColor Cyan
Write-Host '============================' -ForegroundColor Cyan
Write-Host ''
Write-Host 'UI: http://localhost:5173' -ForegroundColor Yellow
Write-Host ''
Set-Location '$frontendDir'
npm run dev
"@

$frontendScriptPath = Join-Path $env:TEMP "gspro-frontend.ps1"
$frontendScript | Out-File -FilePath $frontendScriptPath -Encoding UTF8
Start-Process powershell -ArgumentList "-NoExit", "-ExecutionPolicy", "Bypass", "-File", $frontendScriptPath

Write-Host ""
Write-Host "Development servers starting..." -ForegroundColor Green
Write-Host ""
Write-Host "Access Points:" -ForegroundColor Cyan
Write-Host "  Frontend UI:  http://localhost:5173" -ForegroundColor White
Write-Host "  Backend API:  http://localhost:5005" -ForegroundColor White
Write-Host "  API Docs:     http://localhost:5005/api/docs" -ForegroundColor White
Write-Host "  mDNS Access:  http://gsproapp.local:5005" -ForegroundColor White
Write-Host ""
Write-Host "Press any key to stop watching for changes..." -ForegroundColor Yellow

# Wait for user input
$null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")

# The servers are running in separate windows, so they'll keep running
# This script can exit, and the user can close the server windows manually
Write-Host ""
Write-Host "Note: The servers are still running in separate windows." -ForegroundColor Yellow
Write-Host "Close those windows to stop the servers." -ForegroundColor Yellow