# action.yml
name: "magic docker build and push"
description: "一键构建并推送 Docker 镜像：支持自定义 context / dockerfile，或使用内置 preset（vue3、vue3-hash、dotnet10）"

inputs:
  registry:
    description: "Docker registry URL"
    required: true
    default: "${{ vars.DOCKER_REGISTRY }}"
  user:
    description: "Docker registry username"
    required: true
    default: "${{ vars.DOCKER_USER }}"
  pass:
    description: "Docker registry password"
    required: true
    default: "${{ vars.DOCKER_PASS }}"
  image:
    description: "Docker image name，不含 registry（最终会拼成 <registry>/<image>:<tag>）"
    required: true
    default: "${{ github.repository }}"
  tag:
    description: "Docker image tag (default: github.ref_name)"
    required: false
    default: "${{ github.ref_name }}"
  platform:
    description: "Build platform (default: linux/amd64)"
    required: false
    default: "linux/amd64"
  context:
    description: "构建目录，相对仓库根目录（默认 .）"
    required: false
    default: "."
  dockerfile:
    description: "Dockerfile 的完整路径，相对仓库根目录或绝对路径。设置后忽略 preset（默认留空）"
    required: false
    default: ""
  preset:
    description: "内置方案：vue3 / vue3-hash / dotnet10。未设置 dockerfile 时生效（默认留空）"
    required: false
    default: ""

runs:
  using: "composite"
  steps:
    # 编译、nginx 配置都在 preset 的 Dockerfile 里（多阶段构建）
    # 优先级：dockerfile > preset > context 下的默认 Dockerfile
    - name: build docker image and push
      uses: docker://docker:git
      env:
        DOCKER_BUILDKIT: 1
        REGISTRY: ${{ inputs.registry }}
        REG_USER: ${{ inputs.user }}
        REG_PASS: ${{ inputs.pass }}
        IMAGE: ${{ inputs.image }}
        TAG: ${{ inputs.tag }}
        PLATFORM: ${{ inputs.platform }}
        CONTEXT_DIR: ${{ inputs.context }}
        DOCKERFILE: ${{ inputs.dockerfile }}
        PRESET: ${{ inputs.preset }}
        ACTION_PATH: ${{ github.action_path }}
      with:
        entrypoint: "/bin/sh"
        args: |
          -c '
          set -e
          image="$REGISTRY/$IMAGE:$TAG"
          dockerfile_path="${DOCKERFILE:-}"
          preset="${PRESET:-}"
          build_args=""

          if [ -n "$dockerfile_path" ]; then
            if [ -n "$preset" ]; then
              echo "已指定 dockerfile（$dockerfile_path），忽略 preset（$preset）"
            fi
          elif [ -n "$preset" ]; then
            dockerfile_path="$ACTION_PATH/$preset.Dockerfile"
            if [ ! -f "$dockerfile_path" ]; then
              echo "未知 preset：$preset（可选：vue3 / vue3-hash / dotnet10）"
              exit 1
            fi
            # preset 的 Dockerfile 用 VERSION 覆盖 package.json 版本 / dotnet Version
            build_args="VERSION=$TAG"
            echo "使用 preset：$preset"
          else
            dockerfile_path="$CONTEXT_DIR/Dockerfile"
          fi

          echo "构建目录：$CONTEXT_DIR"
          echo "Dockerfile：$dockerfile_path"
          echo "镜像：$image"

          set -- --platform "$PLATFORM" -t "$image" -f "$dockerfile_path"
          if [ -n "$build_args" ]; then
            set -- --build-arg "$build_args" "$@"
          fi

          docker ps && docker info && \
          docker build "$@" "$CONTEXT_DIR" && \
          echo "$image 已经构建完了" && \
          docker login "$REGISTRY" -u "$REG_USER" -p "$REG_PASS" && \
          docker push "$image" && \
          echo "$image 推送成功"
          '