param(
  [string]$FnpackPath = "",
  [string]$GoBin = "go"
)

$ErrorActionPreference = "Stop"
$root = (Resolve-Path (Join-Path $PSScriptRoot "..")).Path
$project = Join-Path $PSScriptRoot "havline"
$mainRepo = Join-Path $root "havline"
$version = (Get-Content -Raw (Join-Path $mainRepo "VERSION")).Trim()

function Copy-Tree {
  param(
    [string]$Source,
    [string]$Destination
  )

  New-Item -ItemType Directory -Force $Destination | Out-Null
  robocopy $Source $Destination /E /NFL /NDL /NJH /NJS /NP | Out-Null
  if ($LASTEXITCODE -ge 8) {
    throw "复制失败：$Source -> $Destination，退出码：$LASTEXITCODE"
  }
}

if (-not (Test-Path -LiteralPath $project)) {
  throw "找不到 Native 应用工程：$project"
}

if (-not $FnpackPath) {
  $localTool = Join-Path $root "fnos\fnpack.exe"
  $FnpackPath = if (Test-Path -LiteralPath $localTool) { $localTool } else { "fnpack" }
}

Push-Location (Join-Path $mainRepo "web")
try {
  $env:VITE_BASE_PATH = "/app/havline/"
  npm run build
  if ($LASTEXITCODE -ne 0) {
    throw "前端构建失败，退出码：$LASTEXITCODE"
  }
}
finally {
  Pop-Location
}

$webDist = Join-Path $mainRepo "web\dist"
$embedDist = Join-Path $mainRepo "cmd\havline\web\dist"
New-Item -ItemType Directory -Force $embedDist | Out-Null
robocopy $webDist $embedDist /E /NFL /NDL /NJH /NJS /NP | Out-Null
if ($LASTEXITCODE -ge 8) {
  throw "复制前端产物失败，robocopy 退出码：$LASTEXITCODE"
}

$stamp = Get-Date -Format "yyyyMMddHHmmss"
$stage = Join-Path $PSScriptRoot ".build\havline-$stamp"
New-Item -ItemType Directory -Force $stage | Out-Null
robocopy $project $stage /E /XF .DS_Store /NFL /NDL /NJH /NJS /NP | Out-Null
if ($LASTEXITCODE -ge 8) {
  throw "复制 Native 应用工程失败，robocopy 退出码：$LASTEXITCODE"
}

Copy-Tree -Source (Join-Path $mainRepo "migrations") -Destination (Join-Path $stage "app\migrations")
Copy-Tree -Source (Join-Path $mainRepo "web\assets\image") -Destination (Join-Path $stage "app\web\assets\image")

$env:CGO_ENABLED = "0"
$env:GOOS = "linux"

foreach ($arch in @("amd64", "arm64")) {
  $outputDir = Join-Path $stage "app\server\$arch"
  New-Item -ItemType Directory -Force $outputDir | Out-Null
  $env:GOARCH = $arch

  Push-Location $mainRepo
  try {
    & $GoBin build -trimpath `
      -ldflags "-X github.com/havline/havline/internal/version.Version=$version" `
      -o (Join-Path $outputDir "havline") `
      ./cmd/havline
    if ($LASTEXITCODE -ne 0) {
      throw "编译 $arch 二进制失败，退出码：$LASTEXITCODE"
    }
  }
  finally {
    Pop-Location
  }
}

Push-Location $PSScriptRoot
try {
  & $FnpackPath build -d $stage
  if ($LASTEXITCODE -ne 0) {
    throw "fnpack build 失败，退出码：$LASTEXITCODE"
  }

  $output = Join-Path $PSScriptRoot "havline.fpk"
  $dist = Join-Path $PSScriptRoot "dist"
  New-Item -ItemType Directory -Force $dist | Out-Null
  $target = Join-Path $dist "havline-native-$version.fpk"
  Copy-Item -LiteralPath $output -Destination $target -Force
  $sizeMB = [math]::Round((Get-Item $target).Length / 1MB, 1)
  Write-Output "FPK: $target"
  Write-Output "FPK 大小：$sizeMB MB"
}
finally {
  Pop-Location
}