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