name: Publish Docker
on:
  push:
    branches: [master, beta, nightly, python3]
    tags: [v*]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v2

      - name: Prepare
        id: prepare
        run: |
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            echo ::set-output name=tag::${GITHUB_REF#refs/tags/}
          elif [[ $GITHUB_REF == refs/heads/master ]]; then
            echo ::set-output name=tag::latest
          else
            echo ::set-output name=tag::${GITHUB_REF#refs/heads/}
          fi
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            echo ::set-output name=branch::master
          else
            echo ::set-output name=branch::${GITHUB_REF#refs/heads/}
          fi
          echo ::set-output name=commit::${GITHUB_SHA}
          echo ::set-output name=build_date::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
          echo ::set-output name=docker_platforms::linux/amd64,linux/arm64,linux/arm
          echo ::set-output name=docker_image::${{ secrets.DOCKER_REPO }}/tautulli

      - name: Set up Docker Buildx
        id: buildx
        uses: crazy-max/ghaction-docker-buildx@v3
        with:
          buildx-version: latest

      - name: Cache Docker Layers
        id: cache
        uses: actions/cache@v2
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-

      - name: Docker Buildx (no push)
        run: |
          docker buildx build \
            --cache-from "type=local,src=/tmp/.buildx-cache" \
            --cache-to "type=local,dest=/tmp/.buildx-cache" \
            --platform ${{ steps.prepare.outputs.docker_platforms }} \
            --output "type=image,push=false" \
            --build-arg "TAG=${{ steps.prepare.outputs.tag }}" \
            --build-arg "BRANCH=${{ steps.prepare.outputs.branch }}" \
            --build-arg "COMMIT=${{ steps.prepare.outputs.commit }}" \
            --build-arg "BUILD_DATE=${{ steps.prepare.outputs.build_date }}" \
            --tag "${{ steps.prepare.outputs.docker_image }}:${{ steps.prepare.outputs.tag }}" \
            --file Dockerfile .

      - name: Docker Login
        if: success()
        env:
          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
        run: |
          echo "${DOCKER_PASSWORD}" | docker login --username "${{ secrets.DOCKER_USERNAME }}" --password-stdin

      - name: Docker Buildx (push)
        if: success()
        run: |
          docker buildx build \
            --cache-from "type=local,src=/tmp/.buildx-cache" \
            --platform ${{ steps.prepare.outputs.docker_platforms }} \
            --output "type=image,push=true" \
            --build-arg "TAG=${{ steps.prepare.outputs.tag }}" \
            --build-arg "BRANCH=${{ steps.prepare.outputs.branch }}" \
            --build-arg "COMMIT=${{ steps.prepare.outputs.commit }}" \
            --build-arg "BUILD_DATE=${{ steps.prepare.outputs.build_date }}" \
            --tag "${{ steps.prepare.outputs.docker_image }}:${{ steps.prepare.outputs.tag }}" \
            --file Dockerfile .

      - name: Clear
        if: always()
        run: |
          rm -f ${HOME}/.docker/config.json

      - name: Post Status to Discord
        uses: sarisia/actions-status-discord@v1
        if: always()
        with:
          webhook: ${{ secrets.DISCORD_WEBHOOK }}
          status: ${{ job.status }}
          title: ${{ github.workflow }}
          nofail: true