# DMS 一体化构建脚本（Java 版）
# 用法：在项目根目录执行 .\build\build-java.ps1
# 产物：dist-package-java\dms-server\（dms-server.jar 内置前端）
[CmdletBinding()]
param(
    [switch]$SkipFrontend
)

$ErrorActionPreference = "Stop"
$ProjectRoot = Split-Path $PSScriptRoot -Parent
$Backend = Join-Path $ProjectRoot "backend-java"
$Frontend = Join-Path $ProjectRoot "frontend"
$Dist = Join-Path $ProjectRoot "dist-package-java"
$Templates = Join-Path $PSScriptRoot "java-templates"

Write-Host "========== DMS 一体化构建（Java 版） ==========" -ForegroundColor Cyan
Write-Host "项目根目录: $ProjectRoot"

# ---------- 1. 前端构建 ----------
if (-not $SkipFrontend) {
    Write-Host "`n[1/4] 构建前端..." -ForegroundColor Yellow
    Push-Location $Frontend
    try {
        if (-not (Test-Path "node_modules")) {
            Write-Host "  npm install..." -ForegroundColor DarkGray
            npm install
            if ($LASTEXITCODE -ne 0) { throw "npm install 失败" }
        }
        npm run build
        if ($LASTEXITCODE -ne 0) { throw "前端构建失败" }
    } finally { Pop-Location }
} else {
    Write-Host "`n[1/4] 跳过前端构建 (-SkipFrontend)" -ForegroundColor DarkGray
}

$indexHtml = Join-Path $Frontend "dist\index.html"
if (-not (Test-Path $indexHtml)) {
    throw "前端产物不存在: $indexHtml - 请先执行 npm run build"
}

# ---------- 2. Maven 打包（-Pfrontend 把前端 dist 合入 jar 的 static） ----------
Write-Host "`n[2/4] Maven 打包..." -ForegroundColor Yellow
Push-Location $Backend
try {
    mvn -q clean package -Pfrontend
    if ($LASTEXITCODE -ne 0) { throw "Maven 打包失败" }
} finally { Pop-Location }

$JarFile = Join-Path $Backend "target\dms-server.jar"
if (-not (Test-Path $JarFile)) { throw "未找到打包产物: $JarFile" }

# ---------- 3. 整理发行包 ----------
Write-Host "`n[3/4] 整理发行包..." -ForegroundColor Yellow
$ReleaseDir = Join-Path $Dist "dms-server"
if (Test-Path $ReleaseDir) { Remove-Item $ReleaseDir -Recurse -Force }
New-Item $ReleaseDir -ItemType Directory | Out-Null

Copy-Item $JarFile $ReleaseDir -Force
# 配置模板与 Python 版共用同一份 .env.example
Copy-Item (Join-Path $ProjectRoot "backend\.env.example") $ReleaseDir -Force
# 启动/升级脚本与说明
Copy-Item (Join-Path $Templates "run.bat") $ReleaseDir -Force
Copy-Item (Join-Path $Templates "run.sh") $ReleaseDir -Force
Copy-Item (Join-Path $Templates "upgrade-db.bat") $ReleaseDir -Force
Copy-Item (Join-Path $Templates "upgrade-db.sh") $ReleaseDir -Force
Copy-Item (Join-Path $Templates "README.txt") $ReleaseDir -Force

# 示例数据库 SQL（与后端语言无关，复用同一导出工具）
$ExportTool = Join-Path $ProjectRoot "tools\export_full_demo_data.py"
$ExportedSql = Join-Path $ReleaseDir "database-init.sql"
if (Test-Path $ExportTool) {
    Write-Host "  导出示例数据库 SQL..." -ForegroundColor DarkGray
    Push-Location (Join-Path $ProjectRoot "backend")
    try {
        python $ExportTool --output $ExportedSql 2>&1 | Out-Host
        if (-not (Test-Path $ExportedSql)) {
            Write-Warning "导出工具未生成 $ExportedSql，请手动准备 SQL 文件"
        }
    } catch {
        Write-Warning "导出工具执行失败：$_"
    } finally { Pop-Location }
} else {
    Write-Warning "未找到 tools\export_full_demo_data.py，跳过自动导出"
}

# ---------- 4. 从备份恢复 .env 和 dms-storage ----------
Write-Host "`n[4/4] 从备份恢复 .env 和 dms-storage..." -ForegroundColor Yellow
$BackupDir = Join-Path $ProjectRoot "dist-package-java-bak\dms-server"
if (-not (Test-Path $BackupDir)) {
    Write-Host "  备份目录不存在: $BackupDir - 跳过恢复" -ForegroundColor DarkGray
} else {
    $BackupEnv = Join-Path $BackupDir ".env"
    if (Test-Path $BackupEnv) {
        Copy-Item $BackupEnv $ReleaseDir -Force
        Write-Host "  已恢复 .env" -ForegroundColor DarkGray
    } else {
        Write-Warning "备份中没有 .env，跳过"
    }
    $BackupStorage = Join-Path $BackupDir "dms-storage"
    if (Test-Path $BackupStorage) {
        $TargetStorage = Join-Path $ReleaseDir "dms-storage"
        if (Test-Path $TargetStorage) {
            Remove-Item $TargetStorage -Recurse -Force
        }
        Copy-Item $BackupStorage $TargetStorage -Recurse -Force
        Write-Host "  已恢复 dms-storage" -ForegroundColor DarkGray
    } else {
        Write-Warning "备份中没有 dms-storage，跳过"
    }
}

Write-Host "`n========== 构建完成（Java 版） ==========" -ForegroundColor Green
Write-Host "发行包目录: $ReleaseDir" -ForegroundColor Green
$sizeMB = [math]::Round((Get-ChildItem $ReleaseDir -Recurse | Measure-Object -Property Length -Sum).Sum / 1MB, 1)
Write-Host "包大小: ${sizeMB} MB" -ForegroundColor Green
Write-Host "将该目录整体压缩即可分发给最终用户" -ForegroundColor Green