# 寸进后端打包部署脚本
# 用法: .\scripts\build-backend.ps1 [platform]
# platform: windows (默认) | linux | all

param([string]$Platform = "windows")

$root = Split-Path -Parent $PSScriptRoot
$serverDir = Join-Path $root "server"
$outputDir = Join-Path $root "build"
$version = "1.0.0"
$commit = git -C $root rev-parse --short HEAD 2>$null
if (-not $commit) { $commit = "dev" }

$ldflags = "-s -w -X main.version=$version -X main.commit=$commit"

function Build-Platform {
    param([string]$GOOS, [string]$GOARCH, [string]$suffix)
    $outName = "inchstep-api$suffix"
    $outPath = Join-Path $outputDir $outName

    Write-Host "Building for $GOOS/$GOARCH ..." -ForegroundColor Cyan
    $env:GOOS = $GOOS
    $env:GOARCH = $GOARCH
    $env:CGO_ENABLED = 0

    Push-Location $serverDir
    $result = & go build -buildvcs=false -ldflags $ldflags -o $outPath ./cmd/api 2>&1
    Pop-Location

    if ($LASTEXITCODE -eq 0) {
        $size = (Get-Item $outPath).Length / 1KB
        Write-Host "  OK: $outPath ($([math]::Round($size, 1)) KB)" -ForegroundColor Green
    } else {
        Write-Host "  FAIL: $result" -ForegroundColor Red
    }
}

New-Item -ItemType Directory -Force -Path $outputDir | Out-Null

switch ($Platform) {
    "windows" { Build-Platform "windows" "amd64" ".exe" }
    "linux"   { Build-Platform "linux"   "amd64" "" }
    "all"     {
        Build-Platform "windows" "amd64" ".exe"
        Build-Platform "linux"   "amd64" ""
        Build-Platform "linux"   "arm64" "-arm64"
    }
    default   { Build-Platform "windows" "amd64" ".exe" }
}

Write-Host "Build complete. Output directory: $outputDir" -ForegroundColor Green