name: Build Docker image

on:
  push:
    branches: main
    tags:
      - v*

  workflow_dispatch:

jobs:
  buildx:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Prepare
        id: prep
        run: |
          DOCKER_IMAGE=keshavdv/unifi-cam-proxy
          VERSION=dev
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            VERSION=${GITHUB_REF#refs/tags/v}
          fi
          TAGS="${DOCKER_IMAGE}:${VERSION}"
          if [ "${{ github.event_name }}" = "push" ]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:sha-${GITHUB_SHA::8}"
          fi
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            TAGS="$TAGS,${DOCKER_IMAGE}:latest"
          fi

          echo "version=${VERSION}" >> $GITHUB_OUTPUT
          echo "tags=${TAGS}" >> $GITHUB_OUTPUT
          echo "created=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" >> $GITHUB_OUTPUT

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

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

      - name: Login to DockerHub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: .
          platforms: linux/amd64,linux/arm64,linux/arm/v6,linux/arm/v7
          push: true
          tags: ${{ steps.prep.outputs.tags }}
          labels: |
            org.opencontainers.image.source=${{ github.event.repository.html_url }}
            org.opencontainers.image.created=${{ steps.prep.outputs.created }}
            org.opencontainers.image.revision=${{ github.sha }}