name: Build Any Repository Docker Image

on:
  workflow_dispatch:
    inputs:
      repo_url:
        description: '要构建的仓库地址（如：xc-workflows/engine-demo）'
        required: true
        type: string
      ref:
        description: '分支/tag/commit'
        required: true
        default: 'main'
        type: string
      dry_run:
        description: '仅构建不推送'
        required: false
        default: 'true'
        type: choice
        options:
          - 'true'
          - 'false'

jobs:
  build:
    runs-on: amd64-ubuntu-24.04
    
    steps:
      - name: Clone target repository
        run: |
          # 构建完整的 clone URL
          CLONE_URL="https://${{ gitea.server_url }}/${{ github.event.inputs.repo_url }}.git"
          echo "正在克隆: $CLONE_URL"
          
          git clone "$CLONE_URL" target_repo
          cd target_repo
          git checkout "${{ github.event.inputs.ref }}"
          
          # 保存仓库信息供后续步骤使用
          echo "TARGET_REPO_PATH=$(pwd)" >> "$GITEA_ENV"
          echo "TARGET_REPO_NAME=$(basename ${{ github.event.inputs.repo_url }})" >> "$GITEA_ENV"

      - name: Set image metadata
        run: |
          cd target_repo
          
          # 生成镜像名称（将仓库路径中的 / 替换为 -）
          IMAGE_NAME="$(echo "${{ github.event.inputs.repo_url }}" | tr '[:upper:]' '[:lower:]' | tr '/' '-')"
          SAFE_TAG=$(echo "${{ github.event.inputs.ref }}" | sed 's/\//-/g')
          IMAGE="${DOCKER_REGISTRY}/${DOCKER_USERNAME}/${IMAGE_NAME}:${SAFE_TAG}"
          
          echo "IMAGE_NAME=${IMAGE_NAME}" >> "$GITEA_ENV"
          echo "IMAGE=${IMAGE}" >> "$GITEA_ENV"
          echo "构建目标镜像: ${IMAGE}"

      - name: Login to Docker Registry
        if: github.event.inputs.dry_run != 'true'
        run: |
          echo "$DOCKER_PASSWORD" | docker login "$DOCKER_REGISTRY" \
            -u "$DOCKER_USERNAME" \
            --password-stdin

      - name: Build Docker Image
        run: |
          cd target_repo
          echo "开始构建镜像: ${IMAGE}"
          docker build -t "${IMAGE}" .
          echo "镜像构建完成"

      - name: Push Docker Image
        if: github.event.inputs.dry_run != 'true'
        run: |
          for attempt in 1 2 3; do
            echo "Starting docker push attempt ${attempt}/3 for ${IMAGE}"
            docker push "${IMAGE}" &
            PUSH_PID=$!

            while kill -0 "$PUSH_PID" 2>/dev/null; do
              echo "docker push is still running at $(date -u '+%Y-%m-%dT%H:%M:%SZ')"
              sleep 60
            done

            if wait "$PUSH_PID"; then
              echo "docker push completed successfully"
              exit 0
            fi

            echo "docker push failed on attempt ${attempt}/3"
            sleep 30
          done

          echo "docker push failed after 3 attempts"
          exit 1

      - name: Dry Run Summary
        if: github.event.inputs.dry_run == 'true'
        run: |
          echo "=========================================="
          echo "✅ 仅构建模式完成（未推送）"
          echo "=========================================="
          echo "源仓库: ${{ github.event.inputs.repo_url }}"
          echo "分支/Tag: ${{ github.event.inputs.ref }}"
          echo "镜像名称: ${IMAGE}"
          echo "=========================================="
          
      - name: Full Build Summary
        if: github.event.inputs.dry_run != 'true'
        run: |
          echo "=========================================="
          echo "✅ 完整构建完成（已推送）"
          echo "=========================================="
          echo "源仓库: ${{ github.event.inputs.repo_url }}"
          echo "分支/Tag: ${{ github.event.inputs.ref }}"
          echo "镜像名称: ${IMAGE}"
          echo "=========================================="