name: e2e tests
"on":
  workflow_call:
    inputs:
      grafana-image-tag:
        required: true
        type: string
      browsers:
        required: true
        type: string
      run-expensive-tests:
        description: >
          Whether or not to run Playwright tests that're annotated as "@expensive"
          (ex. tests that incur costs such as sending SMSes via Twilio/Mailslurp)
        required: true
        type: boolean
    secrets:
      TWILIO_ACCOUNT_SID:
        required: true
      TWILIO_AUTH_TOKEN:
        required: true
      TWILIO_PHONE_NUMBER:
        required: true
      TWILIO_VERIFY_SID:
        required: true
      MAILSLURP_API_KEY:
        required: true

jobs:
  end-to-end-tests:
    # default "ubuntu-latest" runners only provide 2 CPU cores + 7GB of RAM. this seems to lead to HTTP 504s from
    # the oncall backend, and hence, flaky tests. Let's use CI runners w/ more resources to avoid this (plus
    # this will allow us to run more backend containers and parralelize the tests)
    runs-on: ubuntu-latest-8-cores
    name: "Grafana: ${{ inputs.grafana-image-tag }}"
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Collect Workflow Telemetry
        uses: runforesight/workflow-telemetry-action@v1
        with:
          comment_on_pr: false
          proc_trace_chart_show: false
          proc_trace_table_show: false

      - name: Create k8s Kind Cluster
        uses: helm/kind-action@v1.3.0
        with:
          config: ./.github/kind.yml

      - uses: actions/setup-node@v3
        with:
          node-version: 18.16.0
          cache: "yarn"
          cache-dependency-path: grafana-plugin/yarn.lock

      - name: Use cached frontend dependencies
        id: cache-frontend-dependencies
        uses: actions/cache@v3
        with:
          path: grafana-plugin/node_modules
          key: ${{ runner.os }}-frontend-node-modules-${{ hashFiles('grafana-plugin/yarn.lock') }}

      - name: Install frontend dependencies
        if: steps.cache-frontend-dependencies.outputs.cache-hit != 'true'
        working-directory: grafana-plugin
        run: yarn install --frozen-lockfile --prefer-offline --network-timeout 500000

      - name: Use cached plugin frontend build
        id: cache-plugin-frontend
        uses: actions/cache@v3
        with:
          path: grafana-plugin/dist
          key: ${{ runner.os }}-plugin-frontend-${{ hashFiles('grafana-plugin/src/**/*', 'grafana-plugin/yarn.lock') }}

      - name: Build plugin frontend
        if: steps.cache-plugin-frontend.outputs.cache-hit != 'true'
        working-directory: grafana-plugin
        run: yarn build:dev

      - name: Set up Docker Buildx # We need this step for docker caching
        uses: docker/setup-buildx-action@v2

      - name: Build engine Docker image locally # using github actions docker cache
        uses: docker/build-push-action@v4
        with:
          context: ./engine
          file: ./engine/Dockerfile
          push: false
          load: true
          tags: oncall/engine:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max
          outputs: type=docker,dest=/tmp/oncall-engine.tar

      - name: Load engine Docker image on the nodes of the cluster
        run: kind load image-archive --name=chart-testing /tmp/oncall-engine.tar

      - name: Install helm chart
        run: |
          helm install oncall-ci \
            --values ./.github/helm-values.yml \
            --set oncall.twilio.accountSid="${{ secrets.TWILIO_ACCOUNT_SID }}" \
            --set oncall.twilio.authToken="${{ secrets.TWILIO_AUTH_TOKEN }}" \
            --set oncall.twilio.phoneNumber="\"${{ secrets.TWILIO_PHONE_NUMBER }}"\" \
            --set oncall.twilio.verifySid="${{ secrets.TWILIO_VERIFY_SID }}" \
            --set grafana.image.tag=${{ inputs.grafana-image-tag }} \
            ./helm/oncall

      # helpful reference for properly caching the playwright binaries/dependencies
      # https://playwrightsolutions.com/playwright-github-action-to-cache-the-browser-binaries/
      - name: Get installed Playwright version
        id: playwright-version
        working-directory: grafana-plugin
        run: >
          echo "PLAYWRIGHT_VERSION=$(cat ./package.json |
          jq -r '.devDependencies["@playwright/test"]')" >> $GITHUB_ENV

      - name: Cache Playwright binaries/dependencies
        id: playwright-cache
        uses: actions/cache@v3
        with:
          path: "~/.cache/ms-playwright"
          key: ${{ runner.os }}-playwright-${{ env.PLAYWRIGHT_VERSION }}-chromium-firefox-webkit

      # For the next two steps, use the binary directly from node_modules/.bin as opposed to npx playwright
      # due to this bug (https://github.com/microsoft/playwright/issues/13188)
      - name: Install Playwright Browsers
        if: steps.playwright-cache.outputs.cache-hit != 'true'
        working-directory: grafana-plugin
        run: ./node_modules/.bin/playwright install --with-deps ${{ inputs.browsers }}

      # use the cached browsers, but we still need to install the necessary system dependencies
      # (system deps are installed in the cache-miss step above by the --with-deps flag)
      - name: Install Playwright System Dependencies
        if: steps.playwright-cache.outputs.cache-hit == 'true'
        working-directory: grafana-plugin
        run: ./node_modules/.bin/playwright install-deps ${{ inputs.browsers }}

      # we could instead use the --wait flag for the helm install command above
      # but there's no reason to block on that step
      # instead we can let the k8s resources start up behind the scenes and do other
      # setup tasks (ex. install playwright + its dependencies)
      - name: Wait until k8s resources are ready
        run: |
          kubectl rollout status deployment/oncall-ci-grafana --timeout=300s
          kubectl rollout status deployment/oncall-ci-engine --timeout=300s
          kubectl rollout status deployment/oncall-ci-celery --timeout=300s

      - name: Run e2e Tests
        env:
          # BASE_URL represents what is accessed via a browser
          BASE_URL: http://localhost:30002/grafana
          # ONCALL_API_URL is what is configured in the plugin configuration form
          # it is what the grafana container uses to communicate with the OnCall backend
          #
          # 172.17.0.1 is the docker bridge network default gateway. Requests originate in the grafana container
          # hit 172.17.0.1 which proxies the request onto the host where port 30001 is the node port that is mapped
          # to the OnCall API
          ONCALL_API_URL: http://172.17.0.1:30001
          GRAFANA_ADMIN_USERNAME: oncall
          GRAFANA_ADMIN_PASSWORD: oncall
          GRAFANA_EDITOR_USERNAME: editor
          GRAFANA_EDITOR_PASSWORD: editor
          GRAFANA_VIEWER_USERNAME: viewer
          GRAFANA_VIEWER_PASSWORD: viewer
          MAILSLURP_API_KEY: ${{ secrets.MAILSLURP_API_KEY }}
          BROWSERS: ${{ inputs.browsers }}
        working-directory: ./grafana-plugin
        run: yarn test:e2e

      - name: Run expensive e2e Tests
        if: inputs.run-expensive-tests
        env:
          BASE_URL: http://localhost:30002/grafana
          ONCALL_API_URL: http://172.17.0.1:30001
          GRAFANA_ADMIN_USERNAME: oncall
          GRAFANA_ADMIN_PASSWORD: oncall
          GRAFANA_EDITOR_USERNAME: editor
          GRAFANA_EDITOR_PASSWORD: editor
          GRAFANA_VIEWER_USERNAME: viewer
          GRAFANA_VIEWER_PASSWORD: viewer
          MAILSLURP_API_KEY: ${{ secrets.MAILSLURP_API_KEY }}
        working-directory: ./grafana-plugin
        run: yarn test:e2e-expensive

      # spit out the engine, celery, and grafana logs, if the the e2e tests have failed (or were flaky)
      # can be helpful for debugging these tests
      # GitHub Action reference: https://github.com/jupyterhub/action-k8s-namespace-report
      - name: oncall-engine logs
        if: always()
        uses: jupyterhub/action-k8s-namespace-report@v1
        with:
          important-workloads: deploy/oncall-ci-engine

      - name: oncall-celery logs
        if: always()
        uses: jupyterhub/action-k8s-namespace-report@v1
        with:
          important-workloads: deploy/oncall-ci-celery

      - name: grafana logs
        if: always()
        uses: jupyterhub/action-k8s-namespace-report@v1
        with:
          important-workloads: deploy/oncall-ci-grafana

      - uses: actions/upload-artifact@v3
        if: failure()
        with:
          name: playwright-report
          path: ./grafana-plugin/playwright-report/
          retention-days: 30