# GoFaster Full Stack Development Environment
param(
    [switch]$Debug,
    [switch]$Watch,
    [switch]$BackendOnly,
    [switch]$FrontendOnly
)

# Set console encoding
[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
$OutputEncoding = [System.Text.Encoding]::UTF8

# Set environment variables
$env:VUE_CLI_BABEL_TRANSPILE_MODULES = "false"
$env:VUE_CLI_MODERN_BUILD = "false"
$env:VUE_CLI_LOG_LEVEL = "info"
$env:VUE_CLI_DEBUG = "true"
$env:LANG = "zh_CN.UTF-8" 
$env:LC_ALL = "zh_CN.UTF-8"
$env:NODE_OPTIONS = "--max-old-space-size=4096"

# Display startup information
Write-Host "Starting GoFaster Full Stack Development Environment..." -ForegroundColor Cyan
Write-Host "Encoding: UTF-8" -ForegroundColor Green
Write-Host "Log Level: INFO" -ForegroundColor Green
Write-Host "Hot Reload: Enabled" -ForegroundColor Green
Write-Host ""
Write-Host "Frontend: Electron + Vue.js with Enhanced Hot Reload" -ForegroundColor Green
Write-Host "Backend: Go + Gin with Air Hot Reload" -ForegroundColor Green
Write-Host ""

# Check run mode
if ($Debug) {
    Write-Host "Debug mode starting..." -ForegroundColor Magenta
    $env:DEBUG = "*"
} elseif ($Watch) {
    Write-Host "Watch mode starting..." -ForegroundColor Blue
} else {
    Write-Host "Standard mode starting..." -ForegroundColor Green
}

Write-Host ""

# Check dependencies
Write-Host "Checking frontend dependencies..." -ForegroundColor Yellow
if (-not (Test-Path "app/node_modules")) {
    Write-Host "Frontend dependencies not installed, installing..." -ForegroundColor Yellow
    Set-Location "app"
    npm install
    if ($LASTEXITCODE -ne 0) {
        Write-Host "Frontend dependency installation failed" -ForegroundColor Red
        exit 1
    }
    Set-Location ".."
}

# Install cross-env if not exists
$crossEnvInstalled = npm list cross-env 2>$null -Path "app"
if (-not $crossEnvInstalled) {
    Write-Host "Installing cross-env..." -ForegroundColor Yellow
    Set-Location "app"
    npm install --save-dev cross-env
    Set-Location ".."
}

Write-Host "Frontend dependency check completed" -ForegroundColor Green
Write-Host ""

# Check backend dependencies
Write-Host "Checking backend dependencies..." -ForegroundColor Yellow
if (-not (Test-Path "backend/go.mod")) {
    Write-Host "Backend Go module not found" -ForegroundColor Red
    exit 1
}

# Check if air is installed
try {
    $airVersion = air -v 2>$null
    if (-not $airVersion) {
        Write-Host "Air not installed, installing..." -ForegroundColor Yellow
        go install github.com/air-verse/air@latest
    }
} catch {
    Write-Host "Air not installed, installing..." -ForegroundColor Yellow
    go install github.com/air-verse/air@latest
}

Write-Host "Backend dependency check completed" -ForegroundColor Green
Write-Host ""

# Select startup mode - 修复：默认使用watch模式确保热重载
$frontendScript = if ($Debug) { "npm run dev:debug" } elseif ($Watch) { "npm run dev:watch" } else { "npm run dev:watch" }
$backendScript = "air"

# Start services
if (-not $FrontendOnly) {
    Write-Host "Starting backend hot reload..." -ForegroundColor Green
    $backendProcess = Start-Process powershell -ArgumentList "-NoExit", "-Command", "cd backend; $backendScript" -WindowStyle Normal -PassThru
    Write-Host "Backend started (PID: $($backendProcess.Id))" -ForegroundColor Green
    
    # Wait for backend to start
    Write-Host "Waiting for backend to start..." -ForegroundColor Yellow
    Start-Sleep -Seconds 3
    
    # Check if backend started successfully
    try {
        $response = Invoke-WebRequest -Uri "http://localhost:8080/health" -Method GET -TimeoutSec 5 -ErrorAction Stop
        if ($response.StatusCode -eq 200) {
            Write-Host "Backend started successfully" -ForegroundColor Green
        }
    } catch {
        Write-Host "Backend might still be starting, continuing with frontend..." -ForegroundColor Yellow
    }
}

if (-not $BackendOnly) {
    Write-Host "Starting frontend hot reload..." -ForegroundColor Green
    Write-Host "Using script: $frontendScript" -ForegroundColor Cyan
    $frontendProcess = Start-Process powershell -ArgumentList "-NoExit", "-Command", "cd app; $frontendScript" -WindowStyle Normal -PassThru
    Write-Host "Frontend started (PID: $($frontendProcess.Id))" -ForegroundColor Green
}

Write-Host ""
Write-Host "Service startup completed!" -ForegroundColor Green

if (-not $BackendOnly) {
    Write-Host "Backend: http://localhost:8080" -ForegroundColor Cyan
    Write-Host "Swagger: http://localhost:8080/swagger/index.html" -ForegroundColor Cyan
}

if (-not $FrontendOnly) {
    Write-Host "Frontend: Electron app (auto-reload enabled)" -ForegroundColor Cyan
    Write-Host "Note: Frontend now uses watch mode by default for better hot reload" -ForegroundColor Yellow
}

Write-Host ""
Write-Host "Usage:" -ForegroundColor Yellow
Write-Host "   - Use -Debug parameter to enable detailed debug info" -ForegroundColor White
Write-Host "   - Use -Watch parameter to explicitly enable file watching" -ForegroundColor White
Write-Host "   - Use -BackendOnly to start only backend" -ForegroundColor White
Write-Host "   - Use -FrontendOnly to start only frontend" -ForegroundColor White
Write-Host "   - Press Ctrl+C to stop services" -ForegroundColor White
Write-Host ""

# Display process information
if (-not $BackendOnly -and -not $FrontendOnly) {
    Write-Host "Process Information:" -ForegroundColor Yellow
    Write-Host "   Backend PID: $($backendProcess.Id)" -ForegroundColor White
    Write-Host "   Frontend PID: $($frontendProcess.Id)" -ForegroundColor White
    Write-Host ""
    Write-Host "Management Commands:" -ForegroundColor Yellow
    Write-Host "   Stop Backend: Stop-Process -Id $($backendProcess.Id)" -ForegroundColor White
    Write-Host "   Stop Frontend: Stop-Process -Id $($frontendProcess.Id)" -ForegroundColor White
    Write-Host "   Stop All: Get-Process | Where-Object {$_.ProcessName -eq 'powershell'} | Stop-Process" -ForegroundColor White
}

Write-Host "Code changes will automatically trigger rebuilds and reloads!" -ForegroundColor Yellow
Write-Host "Frontend now uses watch mode by default for better hot reload experience" -ForegroundColor Green
Write-Host "Press any key to exit..."
$null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")