name: Build Multi-Platform Binaries
on:
  push:
    paths:
      - '**.go'
      - 'go.mod'
      - 'go.sum'
      - 'web/**'
      - '.gitea/workflows/**'

jobs:
  # --- 任务 1: 构建前端 ---
  build-frontend:
    runs-on: node
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      
      # 缓存 node_modules
      - name: Cache Node modules
        uses: actions/cache@v3
        with:
          path: web/node_modules
          key: node-modules-${{ hashFiles('web/package-lock.json') }}
          restore-keys: |
            node-modules-
      
      - name: Build Frontend
        run: |
          cd web
          npm ci --prefer-offline --no-audit
          npm run build
      
      - name: Upload Frontend Artifact
        uses: actions/upload-artifact@v3
        with:
          name: frontend-dist
          path: web/dist
          retention-days: 1

  # --- 任务 2: 构建多平台二进制文件 ---
  build-binaries:
    needs: build-frontend
    runs-on: golang
    strategy:
      fail-fast: false
      matrix:
        include:
          # Linux 平台
          - { goos: linux, goarch: amd64, target: server, upx: true }
          - { goos: linux, goarch: amd64, target: client, upx: true }
          - { goos: linux, goarch: arm64, target: server, upx: true }
          - { goos: linux, goarch: arm64, target: client, upx: true }
          - { goos: linux, goarch: arm, goarm: 7, target: server, upx: true }
          - { goos: linux, goarch: arm, goarm: 7, target: client, upx: true }
          
          # Windows 平台
          - { goos: windows, goarch: amd64, target: server, upx: true }
          - { goos: windows, goarch: amd64, target: client, upx: true }
          - { goos: windows, goarch: arm64, target: server, upx: false }
          
          # Darwin (macOS) 平台
          - { goos: darwin, goarch: amd64, target: server, upx: false }
          - { goos: darwin, goarch: arm64, target: server, upx: false }
    
    steps:
      # 在 checkout 前安装依赖
      - name: Install Dependencies
        run: |
          if command -v apk > /dev/null; then
            apk add --no-cache nodejs upx
          elif command -v apt-get > /dev/null; then
            apt-get update && apt-get install -y nodejs upx-ucl
          else
            echo "Unsupported package manager" && exit 1
          fi
      
      - name: Checkout code
        uses: actions/checkout@v4
      
      # 缓存 Go 模块
      - name: Cache Go modules
        uses: actions/cache@v3
        with:
          path: |
            ~/.cache/go-build
            ~/go/pkg/mod
          key: go-${{ runner.os }}-${{ hashFiles('go.sum') }}
          restore-keys: |
            go-${{ runner.os }}-
      
      # 下载依赖（只在缓存未命中时执行）
      - name: Download Go dependencies
        run: go mod download
      
      - name: Download Frontend Artifact
        uses: actions/download-artifact@v3
        with:
          name: frontend-dist
          path: internal/server/app/dist
      
      - name: Build Binary
        env:
          GOOS: ${{ matrix.goos }}
          GOARCH: ${{ matrix.goarch }}
          GOARM: ${{ matrix.goarm }}
          CGO_ENABLED: 0
        run: |
          # 处理文件名
          ARM_VAL=""
          [ "${{ matrix.goarch }}" = "arm" ] && ARM_VAL="v${{ matrix.goarm }}"
          
          EXT=""
          [ "${{ matrix.goos }}" = "windows" ] && EXT=".exe"
          
          FILENAME="gotunnel-${{ matrix.target }}-${{ matrix.goos }}-${{ matrix.goarch }}${ARM_VAL}${EXT}"
          
          # 编译（使用 -trimpath 减小体积，利用缓存）
          go build -trimpath -ldflags="-s -w" -o "${FILENAME}" ./cmd/${{ matrix.target }}
          
          echo "CURRENT_FILENAME=${FILENAME}" >> $GITHUB_ENV
      
      - name: Run UPX Compression
        if: matrix.upx == true
        run: |
          upx --best --lzma "${{ env.CURRENT_FILENAME }}" || echo "UPX skipped for this platform"
      
      - name: Upload Binary
        uses: actions/upload-artifact@v3
        with:
          name: ${{ env.CURRENT_FILENAME }}
          path: ${{ env.CURRENT_FILENAME }}
          retention-days: 7