name: AuTo Docker Image


on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  
  # 保留手动触发作为备选
  workflow_dispatch:
    inputs:
      version_type:
        description: '版本递增类型'
        required: true
        default: 'patch'
        type: choice
        options:
          - patch    # 0.0.x
          - minor    # 0.x.0
          - major    # x.0.0

permissions:
  contents: write  # 需要写入权限来更新版本文件
  packages: write

jobs:
  version-and-publish:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0  # 获取完整历史以便版本计算
          token: ${{ secrets.GITHUB_TOKEN }}

      # 1. 获取或初始化版本号
      - name: Get current version
        id: get_version
        run: |
          # 从文件读取版本号，或使用默认值
          if [ -f VERSION ]; then
            CURRENT_VERSION=$(cat VERSION)
          else
            CURRENT_VERSION="0.0.0"
            echo $CURRENT_VERSION > VERSION
          fi
          echo "current_version=$CURRENT_VERSION" >> $GITHUB_OUTPUT
          
          # 分离版本组成部分
          MAJOR=$(echo $CURRENT_VERSION | cut -d. -f1)
          MINOR=$(echo $CURRENT_VERSION | cut -d. -f2)
          PATCH=$(echo $CURRENT_VERSION | cut -d. -f3)
          echo "major=$MAJOR" >> $GITHUB_OUTPUT
          echo "minor=$MINOR" >> $GITHUB_OUTPUT
          echo "patch=$PATCH" >> $GITHUB_OUTPUT

      # 2. 计算新版本号
      - name: Bump version
        id: bump_version
        run: |
          MAJOR=${{ steps.get_version.outputs.major }}
          MINOR=${{ steps.get_version.outputs.minor }}
          PATCH=${{ steps.get_version.outputs.patch }}
          
          # 手动触发时根据选择递增
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            TYPE="${{ github.event.inputs.version_type }}"
            if [ "$TYPE" = "major" ]; then
              MAJOR=$((MAJOR + 1))
              MINOR=0
              PATCH=0
            elif [ "$TYPE" = "minor" ]; then
              MINOR=$((MINOR + 1))
              PATCH=0
            else  # patch
              PATCH=$((PATCH + 1))
            fi
          else
            # 自动触发时默认 patch 递增
            PATCH=$((PATCH + 1))
          fi
          
          NEW_VERSION="${MAJOR}.${MINOR}.${PATCH}"
          echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT
          echo "tag=MMTL-v${NEW_VERSION}" >> $GITHUB_OUTPUT
          echo "tag=mmtl-v${NEW_VERSION}" >> $GITHUB_OUTPUT

      # 3. 更新 VERSION 文件
      - name: Update version file
        run: |
          echo "${{ steps.bump_version.outputs.new_version }}" > VERSION
          
          # 如果存在 go.mod，也更新其中的版本（可选）
          # if [ -f go.mod ]; then
          #   sed -i "s/^version .*/version ${{ steps.bump_version.outputs.new_version }}/" go.mod
          # fi

      # 4. 提交版本变更
      - name: Commit version bump
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add VERSION
          git commit -m "chore: bump version to ${{ steps.bump_version.outputs.new_version }} [skip ci]"
          git push

      # 5. 创建 Git Tag
      - name: Create and push tag
        run: |
          TAG="${{ steps.bump_version.outputs.tag }}"
          git tag $TAG
          git push origin $TAG

      # 6. 设置 Docker QEMU 和 Buildx
      - uses: docker/setup-qemu-action@v3
      - uses: docker/setup-buildx-action@v3

      # 7. 登录 GHCR
      - name: Log in to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # 8. 提取镜像元数据
      - name: Extract image metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/${{ github.repository_owner }}/mmtl
          tags: |
            type=raw,value=latest
            type=raw,value=${{ steps.bump_version.outputs.tag }}
            type=raw,value=${{ steps.bump_version.outputs.new_version }}

      # 9. 构建并推送
      - name: Build & push
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          provenance: false
          sbom: false
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            VERSION=${{ steps.bump_version.outputs.new_version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max