name: Deploy Hommabot2 to GCP
on:
  push:
    branches:
      - main

env:
  IMAGE: eu.gcr.io/jan-systems/hommabot2
  GCP_PROJECT: jan-systems
  GCR_SERVICE: hommabot
  GCR_PORT: 8080 # Not used in service, but GCR requires a port
  GCR_PLATFORM: managed
  GCR_REGION: europe-north1
  CLOUDSQL_INSTANCES: jan-systems:europe-north1:pg1
  VPC_CONNECTOR: connector1
  # Env vars (normally) comma separated. Use @ as separator since TELEGRAM_USER_IDS has commas.
  GCR_ENV_VARS: "^&^SHEETS_SPREADSHEET_ID=1eKEcFRQBdM2b-pPxnSUEilAKdHnMUNXZljO_I6iqwBw\
                   &SHEETS_RANGE=Aikataulu!A4:C999\
                   &TELEGRAM_BOT_TOKEN=1617681735:AAFr1314RVQt7giW82yh0DYQKqGl4m_B8gM\
                   &TELEGRAM_WEBHOOK_URL=https://hommabot.jan.systems/webhook/telegram\
                   &PG_CONNECTION_URI=postgresql://hommabot_user:${{ secrets.DATABASE_PASSWORD }}@10.24.240.3/hommabot"

jobs:
  website:
    name: Build, Push, and Deploy Hommabot
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      # Build image tag from the commit SHA
      - name: Define image tag
        run: echo "TAG=$(date +'%Y.%m.%d')_${GITHUB_SHA:0:6}" >> $GITHUB_ENV

      - name: Define full image identifier
        run: echo "IMAGE_AND_TAG=${IMAGE}:${TAG}" >> $GITHUB_ENV

      # Define revision suffix
      - name: Define revision suffix
        run: echo "GCR_REVISION_SUFFIX=$(echo ${TAG} | sed 's/\./-/g' | sed 's/_/-/g')" >> $GITHUB_ENV

      # Setup gcloud CLI
      - name: Set up gcloud CLI
        uses: google-github-actions/setup-gcloud@v0.2.0
        with:
          service_account_key: ${{ secrets.GCP_SA_KEY }}
          project_id: ${{ env.GCP_PROJECT }}
          export_default_credentials: true

      # Configure Docker to use the gcloud command-line tool as a credential
      # helper for authentication
      - name: Configure Docker authentication
        run: gcloud --quiet auth configure-docker

      # In this step, this action saves a list of existing images,
      # the cache is created without them in the post run.
      # It also restores the cache if it exists.
      - name: Restore Docker cache
        uses: satackey/action-docker-layer-caching@v0.0.11
        # Ignore the failure of a step and avoid terminating the job.
        continue-on-error: true
        with:
          key: hommabot-docker-cache-{hash}
          restore-keys: |
            hommabot-docker-cache-

      # Build the Docker image
      - name: Build image
        run: docker build -t ${IMAGE_AND_TAG} .

      # Push the Docker image to Google Container Registry
      - name: Push image to registry
        run: docker push ${IMAGE_AND_TAG}

      # Deploy to Google Cloud Run
      - name: Deploy to Cloud Run
        run: |-
          gcloud run deploy ${GCR_SERVICE} \
            --region=${GCR_REGION} \
            --platform=${GCR_PLATFORM} \
            --port=${GCR_PORT} \
            --revision-suffix=${GCR_REVISION_SUFFIX} \
            --set-env-vars=${GCR_ENV_VARS} \
            --image=${IMAGE_AND_TAG} \
            --set-cloudsql-instances=${CLOUDSQL_INSTANCES} \
            --vpc-connector=${VPC_CONNECTOR}