# 构建 api / player / admin 生产镜像并导出为 tar
# 用法（在项目根目录或本目录执行均可）:
#   .\docs\docker\build-and-export-images.ps1
#   .\build-and-export-images.ps1 -UseCache
#   .\build-and-export-images.ps1 -ExportOnly

param(
  [switch]$UseCache,
  [switch]$ExportOnly,
  [string]$Output = "thebet365-images.tar"
)

$ErrorActionPreference = "Stop"
$Root = (Resolve-Path (Join-Path $PSScriptRoot "../..")).Path
Set-Location $Root

$ComposeFile = "docker-compose.prod.yml"
$EnvFile = ".env.docker"
$Services = @("api", "player", "admin")

if (-not (Test-Path $ComposeFile)) {
  throw "未找到 $ComposeFile（当前目录: $Root）"
}

if (-not (Test-Path $EnvFile)) {
  if (Test-Path ".env.docker.example") {
    Write-Warning "未找到 .env.docker，使用 .env.docker.example（生产请复制并修改密钥）"
    $EnvFile = ".env.docker.example"
  } else {
    throw "未找到 .env.docker 或 .env.docker.example"
  }
}

if (-not $ExportOnly) {
  Write-Host "==> 构建镜像: $($Services -join ', ')"
  $buildArgs = @(
    "compose", "-f", $ComposeFile, "--env-file", $EnvFile, "build"
  )
  if (-not $UseCache) {
    $buildArgs += "--no-cache"
  }
  $buildArgs += $Services
  & docker @buildArgs
  if ($LASTEXITCODE -ne 0) { throw "docker build 失败，退出码 $LASTEXITCODE" }
}

$OutputPath = if ([System.IO.Path]::IsPathRooted($Output)) { $Output } else { Join-Path $Root $Output }

Write-Host "==> 导出镜像 -> $OutputPath"
& docker save `
  thebet365-api:latest `
  thebet365-player:latest `
  thebet365-admin:latest `
  -o $OutputPath
if ($LASTEXITCODE -ne 0) { throw "docker save 失败，退出码 $LASTEXITCODE" }

$sizeMb = [math]::Round((Get-Item $OutputPath).Length / 1MB, 2)
Write-Host "完成: $OutputPath (${sizeMb} MB)"

Write-Host @"

服务器加载:
  docker load -i thebet365-images.tar
  docker compose -f docker-compose.prod.yml --env-file .env.docker up -d
"@