# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

# GitHub recommends pinning actions to a commit SHA.
# To get a newer version, you will need to update the SHA.
# You can also reference a tag or branch, but the action may change without warning.

name: Publish Docker image

on:
  release:
    types: [published]
    tags:
      - '*.*.*'
jobs:
  docker:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Set up dynamic build ARGs
        id: getargs        
        run: echo "version=$(cat ./stable/VERSION)" >> $GITHUB_OUTPUT

      - name: Get release version
        id: get_version
        run: echo "::set-output name=version::${GITHUB_REF#refs/tags/}"

      - name: Create .VERSION file
        run: echo "${{ steps.get_version.outputs.version }}" >> .VERSION

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v4
        with:
          # list of Docker images to use as base name for tags
          images: |
            jokobsk/pi.alert
          # generate Docker tags based on the following events/attributes
          tags: |
            type=semver,pattern={{version}},value=${{ inputs.version }}
            type=semver,pattern={{major}}.{{minor}},value=${{ inputs.version }}
            type=semver,pattern={{major}},value=${{ inputs.version }}
            type=ref,event=branch,suffix=-{{ sha }}
            type=ref,event=pr
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/') }}

      - name: Log in to Github Container registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: jokob-sk
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Login to DockerHub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v3
        with:
          context: .
          platforms: linux/amd64,linux/arm64,linux/arm/v7
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=ghcr.io/jokob-sk/pi.alert:buildcache
          cache-to: type=registry,ref=ghcr.io/jokob-sk/pi.alert:buildcache,mode=max