# Triggers after the layered build has finished, taking the artifact and running cypress on it
name: Cypress End to End Tests
on:
    workflow_run:
        workflows: ["Element Web - Build"]
        types:
            - completed
concurrency:
    group: ${{ github.workflow }}-${{ github.event.workflow_run.head_branch || github.run_id }}
    cancel-in-progress: ${{ github.event.workflow_run.event == 'pull_request' }}
jobs:
    prepare:
        name: Prepare
        if: github.event.workflow_run.conclusion == 'success'
        runs-on: ubuntu-latest
        permissions:
            actions: read
            issues: read
            statuses: write
            pull-requests: read
        outputs:
            uuid: ${{ steps.uuid.outputs.value }}
            pr_id: ${{ steps.prdetails.outputs.pr_id }}
            commit_message: ${{ steps.commit.outputs.message }}
            commit_author: ${{ steps.commit.outputs.author }}
            commit_email: ${{ steps.commit.outputs.email }}
            percy_enable: ${{ steps.percy.outputs.value || '0' }}
            kiwi_enable: ${{ steps.kiwi.outputs.value || '1' }}
        steps:
            # We create the status here and then update it to success/failure in the `report` stage
            # This provides an easy link to this workflow_run from the PR before Cypress is done.
            - uses: Sibz/github-status-action@faaa4d96fecf273bd762985e0e7f9f933c774918 # v1
              with:
                  authToken: ${{ secrets.GITHUB_TOKEN }}
                  state: pending
                  context: ${{ github.workflow }} / cypress
                  sha: ${{ github.event.workflow_run.head_sha }}
                  target_url: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}

            - id: prdetails
              if: github.event.workflow_run.event == 'pull_request' || github.event.workflow_run.event == 'merge_group'
              uses: matrix-org/pr-details-action@v1.3
              with:
                  owner: ${{ github.event.workflow_run.head_repository.owner.login }}
                  branch: ${{ github.event.workflow_run.head_branch }}

            - name: Get commit details
              id: commit
              if: github.event.workflow_run.event == 'pull_request' || github.event.workflow_run.event == 'merge_group'
              uses: actions/github-script@v6
              with:
                  script: |
                      const response = await github.rest.git.getCommit({
                        owner: context.repo.owner,
                        repo: context.repo.repo,
                        commit_sha: "${{ github.event.workflow_run.head_sha }}",
                      });
                      core.setOutput("message", response.data.message);
                      core.setOutput("author", response.data.author.name);
                      core.setOutput("email", response.data.author.email);

            # Only run Percy when it is demanded or we are running the daily build
            - name: Enable Percy if X-Needs-Percy
              id: percy
              if: |
                  github.event.workflow_run.event == 'schedule' ||
                  (
                    github.event.workflow_run.event == 'merge_queue' &&
                    contains(fromJSON(steps.prdetails.outputs.data).labels.*.name, 'X-Needs-Percy')
                  )
              run: echo "value=1" >> $GITHUB_OUTPUT

            # Only export to kiwi when it is demanded or on develop
            - name: Disable Kiwi if not needed
              id: kiwi
              if: |
                  github.event.workflow_run.event == 'pull_request' &&
                  !contains(fromJSON(steps.prdetails.outputs.data).labels.*.name, 'X-Send-Kiwi')
              run: echo "value=0" >> $GITHUB_OUTPUT

            - name: Generate unique ID 💎
              id: uuid
              run: echo "value=sha-$GITHUB_SHA-time-$(date +"%s")" >> $GITHUB_OUTPUT

    tests:
        name: "Run Tests"
        needs: prepare
        runs-on: ubuntu-latest
        permissions:
            actions: read
            issues: read
            pull-requests: read
        environment: Cypress
        strategy:
            fail-fast: false
            matrix:
                # Run 4 instances in Parallel
                runner: [1, 2, 3, 4]
        steps:
            - uses: browser-actions/setup-chrome@c485fa3bab6be59dce18dbc18ef6ab7cbc8ff5f1
            - run: echo "BROWSER_PATH=$(which chrome)" >> $GITHUB_ENV

            - uses: tecolicom/actions-use-apt-tools@ceaf289fdbc6169fd2406a0f0365a584ffba003b # v1
              with:
                  # Our test suite includes some screenshot tests with unusual diacritics, which are
                  # supposed to be covered by STIXGeneral.
                  tools: fonts-stix

            # There's a 'download artifact' action, but it hasn't been updated for the workflow_run action
            # (https://github.com/actions/download-artifact/issues/60) so instead we get this mess:
            - name: 📥 Download artifact
              uses: dawidd6/action-download-artifact@5e780fc7bbd0cac69fc73271ed86edf5dcb72d67 # v2
              with:
                  run_id: ${{ github.event.workflow_run.id }}
                  name: previewbuild
                  path: webapp

            # The workflow_run.head_sha is the sha of the head commit but the element-web was built using a simulated
            # merge commit - https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request
            # so use the sha from the tarball for the checkout of the cypress tests
            # to make sure we get a matching set of code and tests.
            - name: Grab sha from webapp
              id: sha
              run: |
                  echo "sha=$(cat webapp/sha)" >> $GITHUB_OUTPUT

            - uses: actions/checkout@v3
              with:
                  # XXX: We're checking out untrusted code in a secure context
                  # We need to be careful to not trust anything this code outputs/may do
                  # We need to check this out to access the cypress tests which are on the head branch
                  repository: ${{ github.event.workflow_run.head_repository.full_name }}
                  ref: ${{ steps.sha.outputs.sha }}
                  persist-credentials: false
                  path: matrix-react-sdk

            - name: Run Cypress tests
              uses: cypress-io/github-action@a29a621b736c9a8547ba0236cc9cee1e49725bd5
              with:
                  working-directory: matrix-react-sdk
                  # The built-in Electron runner seems to grind to a halt trying
                  # to run the tests, so use chrome.
                  browser: "${{ env.BROWSER_PATH }}"
                  start: npx serve -p 8080 ../webapp
                  wait-on: "http://localhost:8080"
                  record: true
                  parallel: true
                  command-prefix: "yarn percy exec --parallel --"
                  config: '{"reporter":"cypress-multi-reporters", "reporterOptions": { "configFile": "cypress-ci-reporter-config.json" } }'
                  ci-build-id: ${{ needs.prepare.outputs.uuid }}
              env:
                  # pass the Dashboard record key as an environment variable
                  CYPRESS_RECORD_KEY: ${{ secrets.CYPRESS_RECORD_KEY }}

                  # Use existing chromium rather than downloading another
                  PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: true

                  # pass GitHub token to allow accurately detecting a build vs a re-run build
                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

                  # make Node's os.tmpdir() return something where we actually have permissions
                  TMPDIR: ${{ runner.temp }}

                  # tell Cypress more details about the context of this run
                  COMMIT_INFO_BRANCH: ${{ github.event.workflow_run.head_branch }}
                  COMMIT_INFO_SHA: ${{ github.event.workflow_run.head_sha }}
                  COMMIT_INFO_REMOTE: ${{ github.repositoryUrl }}
                  COMMIT_INFO_MESSAGE: ${{ needs.prepare.outputs.commit_message }}
                  COMMIT_INFO_AUTHOR: ${{ needs.prepare.outputs.commit_author }}
                  COMMIT_INFO_EMAIL: ${{ needs.prepare.outputs.commit_email }}
                  CYPRESS_PULL_REQUEST_ID: ${{ needs.prepare.outputs.pr_id }}
                  CYPRESS_PULL_REQUEST_URL: https://github.com/${{ github.repository }}/pull/${{ needs.prepare.outputs.pr_id }}

                  # pass the Percy token as an environment variable
                  PERCY_TOKEN: ${{ secrets.PERCY_TOKEN }}
                  PERCY_ENABLE: ${{ needs.prepare.outputs.percy_enable }}
                  PERCY_BROWSER_EXECUTABLE: /usr/bin/chromium-browser
                  # tell Percy more details about the context of this run
                  PERCY_BRANCH: ${{ github.event.workflow_run.head_branch }}
                  PERCY_COMMIT: ${{ github.event.workflow_run.head_sha }}
                  PERCY_PULL_REQUEST: ${{ needs.prepare.outputs.pr_id }}
                  PERCY_PARALLEL_NONCE: ${{ needs.prepare.outputs.uuid }}
                  # We manually finalize the build in the report stage
                  PERCY_PARALLEL_TOTAL: -1

            - name: Upload Artifact
              if: failure()
              uses: actions/upload-artifact@v3
              with:
                  name: cypress-results
                  path: |
                      cypress/screenshots
                      cypress/videos
                      cypress/synapselogs

            - name: Upload reports
              if: always()
              uses: actions/upload-artifact@v3
              with:
                  name: cypress-junit
                  path: cypress/results

    report:
        name: Report results
        needs:
            - prepare
            - tests
        runs-on: ubuntu-latest
        if: always()
        permissions:
            statuses: write
        steps:
            - name: Finalize Percy
              if: needs.prepare.outputs.percy_enable == '1'
              run: npx -p @percy/cli percy build:finalize
              env:
                  PERCY_TOKEN: ${{ secrets.PERCY_TOKEN }}
                  PERCY_PARALLEL_NONCE: ${{ needs.prepare.outputs.uuid }}

            - name: Skip Percy required check
              if: needs.prepare.outputs.percy_enable != '1'
              uses: Sibz/github-status-action@faaa4d96fecf273bd762985e0e7f9f933c774918 # v1
              with:
                  authToken: ${{ secrets.GITHUB_TOKEN }}
                  state: success
                  description: Percy skipped
                  context: percy/matrix-react-sdk
                  sha: ${{ github.event.workflow_run.head_sha }}
                  target_url: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}

            - uses: Sibz/github-status-action@faaa4d96fecf273bd762985e0e7f9f933c774918 # v1
              with:
                  authToken: ${{ secrets.GITHUB_TOKEN }}
                  state: ${{ needs.tests.result == 'success' && 'success' || 'failure' }}
                  context: ${{ github.workflow }} / cypress
                  sha: ${{ github.event.workflow_run.head_sha }}
                  target_url: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}

    kiwi:
        name: Report results to kiwi
        needs:
            - prepare
            - tests
        environment: Kiwi
        runs-on: ubuntu-latest
        if: ${{ needs.prepare.outputs.kiwi_enable == '1' }}
        steps:
            - name: Download all zip files
              uses: actions/download-artifact@v3
              with:
                  name: cypress-junit
            - name: Upload to kiwi
              uses: vector-im/kiwitcms-upload-action@main
              with:
                  file-pattern: results-*.xml
                  kiwi-username: ${{ secrets.TCMS_USERNAME }}
                  kiwi-password: ${{ secrets.TCMS_PASSWORD }}
                  product: "Element Web"
                  product-version: ${{ github.event.workflow_run.head_branch }}
                  build-id: ${{ github.event.workflow_run.head_sha }}
                  suite-name: "Cypress E2E"
                  summary-template: "$name"