code_packager 0.1.0

name: Cleanup Old Container Images

on:
  schedule:
    - cron: '0 2 * * 0'  # 每周日凌晨2点
  workflow_dispatch:
    inputs:
      days_old:
        description: '删除超过多少天的镜像'
        required: true
        default: '30'
        type: string
      keep_minimum:
        description: '至少保留最近多少个镜像'
        required: false
        default: '10'
        type: string
      package_name:
        description: '要清理的包名称'
        required: true
        default: 'code_packager'
        type: string
      dry_run:
        description: '仅显示将要删除的镜像，不实际删除'
        required: false
        default: false
        type: boolean

jobs:
  cleanup:
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
    
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup GitHub CLI
        run: |

          # 确保 GitHub CLI 已安装
          command -v gh >/dev/null 2>&1 || {
            echo "GitHub CLI 已安装"
          }

      - name: Cleanup container images
        run: |

          DAYS_OLD=${DAYS_OLD:-30}
          KEEP_MINIMUM=${KEEP_MINIMUM:-10}
          PACKAGE_NAME=${PACKAGE_NAME:-code_packager}
          DRY_RUN=${DRY_RUN:-false}
          
          echo "🗑️ 容器镜像清理配置:"
          echo "  模式: $([ "$DRY_RUN" = "true" ] && echo "🔍 预览模式" || echo "🗑️ 删除模式")"
          echo "  时间阈值: $DAYS_OLD 天"
          echo "  最少保留: $KEEP_MINIMUM 个镜像"
          echo "  包名称: $PACKAGE_NAME"
          echo "  仓库: $GITHUB_REPOSITORY"

          # 获取所有容器镜像版本
          echo "📦 获取容器镜像列表..."
          package_versions=$(gh api repos/$GITHUB_REPOSITORY/packages/container/$PACKAGE_NAME/versions \
            --jq 'sort_by(.updated_at) | reverse')
          
          total_count=$(echo "$package_versions" | jq length)
          echo "📊 总镜像数量: $total_count"

          if [ $total_count -eq 0 ]; then
            echo "✅ 没有找到容器镜像。"
            exit 0
          fi

          # 计算截止时间（当前时间减去天数）
          cutoff_date=$(date -d "$DAYS_OLD days ago" -Iseconds | sed 's/+/%2B/')
          echo "⏰ 截止时间: $(date -d "$DAYS_OLD days ago" '+%Y-%m-%d %H:%M:%S')"

          # 获取需要删除的镜像ID（排除最新的 KEEP_MINIMUM 个，且超过天数）
          delete_ids=$(echo "$package_versions" | \
            jq -r ".[$KEEP_MINIMUM:] | .[] | select(.updated_at < \"$cutoff_date\") | .id")

          if [ -z "$delete_ids" ]; then
            echo "✅ 没有找到需要删除的镜像。"
            echo "💡 可能原因："
            echo "   - 镜像数量少于最少保留数 ($KEEP_MINIMUM)"
            echo "   - 所有镜像都在 $DAYS_OLD 天内更新"
            exit 0
          fi

          count=$(echo "$delete_ids" | wc -l)
          echo "找到 $count 个需要处理的镜像:"
          echo "$delete_ids" | head -5
          if [ $count -gt 5 ]; then
            echo "... 还有 $((count - 5)) 个镜像"
          fi

          # 显示详细信息
          echo "📋 将要删除的镜像详情:"
          echo "$package_versions" | jq -r ".[] | select(.id | IN($(echo "$delete_ids" | paste -sd, -))) | \"  - ID: \(.id), 更新: \(.updated_at), 标签: \(.metadata.container.tags | join(\", \"))\""

          if [ "$DRY_RUN" = "true" ]; then
            echo "🔍 预览模式：以上镜像将被删除（实际未执行删除操作）"
            echo "📈 清理后剩余镜像数: $((total_count - count))"
          else
            echo "🚀 开始删除镜像..."
            deleted_count=0
            failed_count=0
            
            while IFS= read -r version_id; do
              if [ -n "$version_id" ]; then
                echo "🗑️  删除镜像版本: $version_id"
                if gh api \
                  repos/$GITHUB_REPOSITORY/packages/container/$PACKAGE_NAME/versions/$version_id \
                  --method DELETE --silent; then
                  echo "✅ 成功删除: $version_id"
                  deleted_count=$((deleted_count + 1))
                else
                  echo "❌ 删除失败: $version_id"
                  failed_count=$((failed_count + 1))
                fi
                # 添加延迟避免 API 限制
                sleep 1
              fi
            done <<< "$delete_ids"
            
            echo "🎉 清理完成！"
            echo "📊 统计: 成功 $deleted_count, 失败 $failed_count, 总计 $count"
            echo "📈 剩余镜像数: $((total_count - deleted_count))"
            
            if [ $failed_count -gt 0 ]; then
              echo "⚠️  有 $failed_count 个镜像删除失败，请检查权限和网络连接"
              exit 1
            fi
          fi
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          DAYS_OLD: ${{ inputs.days_old }}
          KEEP_MINIMUM: ${{ inputs.keep_minimum }}
          # PACKAGE_NAME: ${{ inputs.package_name }}
          PACKAGE_NAME: ${{ github.event.repository.name }}
          DRY_RUN: ${{ inputs.dry_run }}
          GITHUB_REPOSITORY: ${{ github.repository }}