name: Publish

on:
    push:
        branches:
            - main
        paths-ignore:
            - 'README.md'
            - 'LICENSE'
            - '.gitignore'
            - '.github/**'

jobs:
    tag:
        name: Update tag
        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
        runs-on: ubuntu-23.04
        steps:
            - name: Checkout code
              uses: actions/checkout@v3
            - name: Bump version and push tag
              id: tag_version
              uses: mathieudutour/github-tag-action@v6.1
              with:
                github_token: ${{ secrets.GITHUB_TOKEN }}
    docker-publish:
        name: Publish to GitHub Container Registry
        if: "!contains(github.event.head_commit.message, '[ci skip]')"
        runs-on: ubuntu-23.04
        steps:
            - name: Checkout code
              uses: actions/checkout@v3
            - name: 'Get Previous tag'
              id: tag
              uses: "WyriHaximus/github-action-get-previous-tag@v1"
            - name: Write version
              uses: DamianReeves/write-file-action@master
              with:
                path: ./VERSION
                contents: |
                  ${{ steps.tag.outputs.tag }}
                write-mode: overwrite
            - name: Set up QEMU
              id: qemu
              uses: docker/setup-qemu-action@v2.1.0
              with:
                  platforms: linux/amd64,linux/arm64,linux/armv7
            - name: Set up Docker Buildx
              uses: docker/setup-buildx-action@v2.5.0
            - name: Login to GitHub Container Registry
              uses: docker/login-action@v2.1.0
              with:
                  registry: ghcr.io
                  username: ${{ github.repository_owner }}
                  password: ${{ secrets.GITHUB_TOKEN }}
            - name: Build and push
              id: build
              uses: docker/build-push-action@v4.0.0
              with:
                  context: .
                  push: true
                  platforms: ${{ steps.qemu.outputs.platforms }}
                  tags: |
                      ghcr.io/danclough/amcrest2mqtt:latest
                      ghcr.io/danclough/amcrest2mqtt:${{ steps.tag.outputs.tag }}
                  labels: "version=${{ steps.tag.outputs.tag }}"