name: Go Build & Release

on:
  push:
    branches: [ "main" ]
    tags:
      - 'v*'  # 监听形如 v1.0, v2.0 的提交签发事件以触发正式 Release
  pull_request:
    branches: [ "main" ]

# 【必需权限声明】：默认情况下的 GitHub Token 只有读能力。赋予 contents: write 才能创建 Release 页面并上传附件
permissions:
  contents: write

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        include:
          - os: linux
            arch: amd64
            name: imagehost-linux-amd64
          - os: linux
            arch: arm64
            name: imagehost-linux-arm64
          - os: windows
            arch: amd64
            name: imagehost-windows-amd64.exe
          - os: darwin
            arch: amd64
            name: imagehost-macos-amd64
          - os: darwin
            arch: arm64
            name: imagehost-macos-arm64

    steps:
    - uses: actions/checkout@v4

    - name: Set up Go
      uses: actions/setup-go@v4
      with:
        go-version: '1.21'
        cache: true

    - name: Build Binary
      env:
        GOOS: ${{ matrix.os }}
        GOARCH: ${{ matrix.arch }}
      run: |
        mkdir -p dist
        go build -v -o dist/${{ matrix.name }} ./cmd/main.go
        
    - name: Upload Artifact (For standard push)
      uses: actions/upload-artifact@v4
      with:
        name: ${{ matrix.name }}
        path: dist/${{ matrix.name }}

    # 关键追加：当检测到 Tag 标签推入时，自动化传给 Release！
    - name: Upload to GitHub Releases
      uses: softprops/action-gh-release@v2
      if: startsWith(github.ref, 'refs/tags/')
      with:
        files: dist/${{ matrix.name }}
        generate_release_notes: true

  # ==== 🌟 新增的 DockerHub 全自动推送组 ====
  docker:
    # 避免在其他人的野鸡 PR 测试中乱发
    if: github.event_name != 'pull_request'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout codebase
        uses: actions/checkout@v4

      - name: Set up QEMU (支持多架构底层)
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx (全能无缝打包引流引擎)
        uses: docker/setup-buildx-action@v3

      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract Docker metadata (自动打标签系统)
        id: meta
        uses: docker/metadata-action@v5
        with:
          # 自动组合 "你的名字 / 项目名"
          images: ${{ secrets.DOCKERHUB_USERNAME }}/123pan-imagehost
          tags: |
            type=ref,event=branch
            type=ref,event=tag
            # 原本的 latest 标签会在 master/main 分支时被自动赋予
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Build and push to Space (核心推流指令)
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          # 借用 Github 的高速缓存，让你后续的打包时间缩短成几秒！
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Sync README to DockerHub (自动更新主页排版)
        uses: peter-evans/dockerhub-description@v4
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
          repository: ${{ secrets.DOCKERHUB_USERNAME }}/123pan-imagehost
          readme-filepath: ./README.md