name: Build Docker Image

on:
  workflow_dispatch:
  push:

env:
  DOCKER_IMAGE_NAME: yanhao98/docker-example
  GHCR_IMAGE_NAME: ${{ github.repository }}
  DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
  DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
  GHCR_TOKEN: ${{ secrets.GITHUB_TOKEN }}
  GHCR_USERNAME: ${{ github.repository_owner }}

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      # - name: Login to DockerHub
      #   uses: docker/login-action@v3
      #   with:
      #     registry: docker.io
      #     username: ${{ env.DOCKER_USERNAME }}
      #     password: ${{ env.DOCKER_PASSWORD }}

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ env.GHCR_USERNAME }}
          password: ${{ env.GHCR_TOKEN }}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Cache Docker layers
        uses: actions/cache@v4
        with:
          path: |
            /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            # docker.io/${{ env.DOCKER_IMAGE_NAME }}
            ghcr.io/${{ env.GHCR_IMAGE_NAME }}
          tags: |
            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }}
            type=semver,pattern={{major}}
            type=raw,value=dev,enable=${{ github.ref == 'refs/heads/dev' }}

            # type=pep440,pattern={{raw}},enable=${{ startsWith(github.ref, 'refs/tags/') }}

            # type=schedule,pattern={{date 'YYYYMMDD-HHmmss' tz='UTC'}}
            # type=ref,event=branch
            # type=ref,event=pr
            # type=semver,pattern={{version}}
            # type=semver,pattern={{major}}.{{minor}}.{{patch}}
            # type=sha

      - name: Print metadata
        run: |
          echo "tags: ${{ steps.meta.outputs.tags }}"
          echo "labels: ${{ steps.meta.outputs.labels }}"

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64, linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          file: ./Dockerfile
          # cache-from: type=gha
          # cache-to: type=gha,mode=max
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache