name: push-pipeline
on:
  push:
    branches:
      - main
      - ^v[0-9]*.[0-9]*.x$
    tags:
      - "*"
  # pull_request:
  #   branches:
  #     - main
  #     - v*
  #   paths:
  #     - 'pkg/**'
  #     - 'frontend/**'
jobs:
  get-envs:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
      - shell: bash
        run: |
          img_tag=""
          array=(`echo ${GITHUB_REF} | sed 's/\//\n/g'`)
          if [ ${array[1]} == "tags" ]
          then
              echo "tag build"
              img_tag=${GITHUB_REF#refs/*/v}
          elif [ ${array[1]} == "pull" ]
          then
            img_tag="pull-${{ github.event.number }}"
          else
              echo "non tag build"
              img_tag="latest"
          fi
          # This is a condition where image tag looks like "pull/<pullrequest-name>" during pull request build
          NEW_IMG_TAG=`echo $img_tag | sed "s/\//-/g"`
          echo $NEW_IMG_TAG
          echo export IMG_TAG=$NEW_IMG_TAG >> env-vars
          echo export FRONTEND_IMAGE="frontend" >> env-vars
          echo export QUERY_SERVICE="query-service" >> env-vars
          echo export FLATTENER_PROCESSOR="flattener-processor" >> env-vars

      - name: Uploading envs
        uses: actions/upload-artifact@v2
        with:
          name: env_artifact
          path: env-vars

  build-and-push-frontend:
    runs-on: ubuntu-latest
    needs:
      - get-envs
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Downloading image artifact
        uses: actions/download-artifact@v2
        with:
          name: env_artifact

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1
        with:
          version: latest

      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build & Push Frontend Docker Image
        shell: bash
        env: 
          FRONTEND_DIRECTORY: "frontend"
          REPONAME: ${{ secrets.REPONAME }}
          FRONTEND_DOCKER_IMAGE: ${FRONTEND_IMAGE}
          DOCKER_TAG: ${IMG_TAG} 
        run: |
          branch=${GITHUB_REF#refs/*/}
          array=(`echo ${GITHUB_REF} | sed 's/\//\n/g'`)
          if [ $branch == "main" ] || [ ${array[1]} == "tags" ] || [ ${array[1]} == "pull" ] || [[ $branch =~ ^v[0-9]*.[0-9]*.x$ ]]
          then
            source env-vars
            make build-push-frontend
          fi

  build-and-push-query-service:
    runs-on: ubuntu-latest
    needs:
      - get-envs
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
      
      - name: Downloading image artifact
        uses: actions/download-artifact@v2
        with:
          name: env_artifact

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1
        with:
          version: latest

      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build & Push Query Service Docker Image
        shell: bash
        env: 
          QUERY_SERVICE_DIRECTORY: "pkg/query-service"
          REPONAME: ${{ secrets.REPONAME }}
          QUERY_SERVICE_DOCKER_IMAGE: ${QUERY_SERVICE}
          DOCKER_TAG: ${IMG_TAG} 
        run: |
          branch=${GITHUB_REF#refs/*/}
          array=(`echo ${GITHUB_REF} | sed 's/\//\n/g'`)
          if [ $branch == "main" ] || [ ${array[1]} == "tags" ] || [ ${array[1]} == "pull" ] ||[[ $branch =~ ^v[0-9]*.[0-9]*.x$ ]]
          then
            source env-vars
            make build-push-query-service
          fi

  build-and-push-flattener:
    runs-on: ubuntu-latest
    needs:
      - get-envs
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Downloading image artifact
        uses: actions/download-artifact@v2
        with:
          name: env_artifact

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1
        with:
          version: latest

      - name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build & Push Flattener Processor Docker Image
        shell: bash
        env: 
          FLATTENER_DIRECTORY: "pkg/processors/flattener"
          REPONAME: ${{ secrets.REPONAME }}
          FLATTERNER_DOCKER_IMAGE: ${FLATTENER_PROCESSOR}
          DOCKER_TAG: ${IMG_TAG} 
        run: |
          branch=${GITHUB_REF#refs/*/}
          array=(`echo ${GITHUB_REF} | sed 's/\//\n/g'`)
          if [ $branch == "main" ] || [ ${array[1]} == "tags" ] || [ ${array[1]} == "pull" ] || [[ $branch =~ ^v[0-9]*.[0-9]*.x$ ]]
          then
            source env-vars
            make build-push-flattener
          fi