# vim: ts=2 sw=2:

name: Docker Build and Deploy

on:
  push:
    # Publish `master` as Docker `dev` image.
    branches:
      - master
    # Publish `v*` tags as x.x.x images and as `latest`.
    tags:
      - v*

jobs:
  docker:
    name: Build and push docker images
    runs-on: ubuntu-20.04
    permissions:
      packages: write
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          ref: ${{ github.ref }}

      - name: Write ref to file
        run: git rev-list -n 1 $GITHUB_REF > ./git_commit

      - name: Build image
        id: build_image
        run: |
          IMAGE_ID=${GITHUB_REPOSITORY,,}
          IMAGE_NAME=${IMAGE_ID#*/}
          echo "image_id=$IMAGE_ID" >> $GITHUB_ENV
          echo "image_name=$IMAGE_NAME" >> $GITHUB_ENV
          docker build . --file Dockerfile -t $IMAGE_NAME

      - name: Login to Github Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Tag image
        id: tag_image
        run: |
          IMAGE_NAME=${{ env.image_name }}
          IMAGE_ID=ghcr.io/${{ env.image_id }}
          echo IMAGE_ID=$IMAGE_ID
          echo "image_id=$IMAGE_ID" >> $GITHUB_ENV

          # Strip git ref prefix from version
          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
          # Strip "v" prefix from tag name
          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
          # if version is master, set version to dev
          [[ "$VERSION" == "master" ]] && VERSION=dev
          echo VERSION=$VERSION
          echo "version=$VERSION" >> $GITHUB_ENV

          # tag dev or x.x.x
          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
          # tag latest if not a dev release
          [[ "$VERSION" != "dev" ]] && docker tag $IMAGE_NAME $IMAGE_ID:latest || true

      - name: Push images to registry
        run: |
          VERSION=${{ env.version }}
          IMAGE_ID=${{ env.image_id }}

          [[ "$VERSION" != "dev" ]] && docker push $IMAGE_ID:latest || true
          docker push $IMAGE_ID:$VERSION

      - name: Deploy official images
        id: deploy_images
        uses: satak/webrequest-action@v1
        with:
          url: ${{ secrets.DEPLOY_URL }}
          method: POST
          headers: '{"Authentication": "Token ${{ secrets.DEPLOY_TOKEN }}"}'
          payload: '{"version": "${{ env.version }}"}'