param(
  [switch] $SelfTest,
  [switch] $PauseOnError
)

$ErrorActionPreference = "Stop"
$projectRoot = $PSScriptRoot
$errorLogPath = Join-Path $projectRoot "launcher-last-error.txt"

try {
$bundledNodePath = Join-Path $env:USERPROFILE ".cache\codex-runtimes\codex-primary-runtime\dependencies\node\bin\node.exe"
$nodeCommand = Get-Command node -ErrorAction SilentlyContinue
$nodePath = if (Test-Path -LiteralPath $bundledNodePath) {
  $bundledNodePath
} elseif ($nodeCommand) {
  $nodeCommand.Source
} else {
  $bundledNodePath
}

if (-not (Test-Path -LiteralPath $nodePath)) {
  throw "未找到 Node.js。请安装 Node.js 20+，或从 Codex 桌面环境运行。"
}

Set-Location -LiteralPath $projectRoot
$tscPath = Join-Path $projectRoot "node_modules\typescript\bin\tsc"
if (Test-Path -LiteralPath $tscPath) {
  & $nodePath $tscPath -p tsconfig.json
  if ($LASTEXITCODE -ne 0) { throw "TypeScript 编译失败。" }
} elseif (-not (Test-Path -LiteralPath (Join-Path $projectRoot "dist\main.js"))) {
  throw "没有可用的 dist 构建，也未安装 TypeScript。请先执行 pnpm install。"
}

$server = Start-Process -FilePath $nodePath -ArgumentList @("tools/server.mjs", "--parent-pid", $PID) -WorkingDirectory $projectRoot -WindowStyle Hidden -PassThru
$url = "http://127.0.0.1:4173/mvp/"
try {
  $ready = $false
  for ($attempt = 0; $attempt -lt 30; $attempt += 1) {
    if ($server.HasExited) { throw "本地服务器启动失败，可能是 4173 端口被占用。" }
    try {
      $response = Invoke-WebRequest -Uri $url -UseBasicParsing -TimeoutSec 1
      if ($response.StatusCode -eq 200) { $ready = $true; break }
    } catch {
      Start-Sleep -Milliseconds 100
    }
  }
  if (-not $ready) { throw "本地服务器未在预期时间内就绪。" }
  if (Test-Path -LiteralPath $errorLogPath) {
    Remove-Item -LiteralPath $errorLogPath -Force -ErrorAction SilentlyContinue
  }
  if ($SelfTest) {
    Write-Host "SELF-TEST PASS: TypeScript compiled and $url returned HTTP 200." -ForegroundColor Green
    return
  }
  Write-Host "HEROLL 玩法验证 MVP 已启动：$url" -ForegroundColor Green
  Write-Host "保持此窗口打开；关闭本窗口或按 Ctrl+C 即可结束本地服务器。"
  try {
    Start-Process $url
  } catch {
    Write-Host "浏览器未能自动打开，但游戏服务器仍在正常运行。请复制上面的地址到浏览器。" -ForegroundColor Yellow
  }
  while (-not $server.HasExited) {
    Start-Sleep -Seconds 1
    $server.Refresh()
  }
} finally {
  if (-not $server.HasExited) { Stop-Process -Id $server.Id -Force }
}
} catch {
  $details = ($_ | Out-String).Trim()
  $details | Set-Content -LiteralPath $errorLogPath -Encoding UTF8
  Write-Host "HEROLL MVP 启动失败：" -ForegroundColor Red
  Write-Host $details -ForegroundColor Red
  Write-Host "错误日志：$errorLogPath" -ForegroundColor Yellow
  if ($PauseOnError) { Read-Host "按 Enter 关闭窗口" | Out-Null }
  exit 1
}