name: test_coverage

on:
  pull_request:
    # open will be triggered when a pull request is created.
    # synchronize will be triggered when a pull request has new commits.
    # closed will be triggered when a pull request is closed.
    types: [opened, synchronize, closed]

env:
  METRICS_SERVICE_SECRET: ${{ secrets.GHASecretsGPGPassphrase1 }}

jobs:
  check:
    if: github.repository == 'Firebase/firebase-ios-sdk' && (github.event.action == 'opened' || github.event.action == 'synchronize')
    name: Check changed files
    outputs:
      abtesting_run_job: ${{ steps.check_files.outputs.abtesting_run_job }}
      auth_run_job: ${{ steps.check_files.outputs.auth_run_job }}
      database_run_job: ${{ steps.check_files.outputs.database_run_job }}
      dynamiclinks_run_job: ${{ steps.check_files.outputs.dynamiclinks_run_job }}
      firestore_run_job: ${{ steps.check_files.outputs.firestore_run_job }}
      functions_run_job: ${{ steps.check_files.outputs.functions_run_job }}
      inappmessaging_run_job: ${{ steps.check_files.outputs.inappmessaging_run_job }}
      messaging_run_job: ${{ steps.check_files.outputs.messaging_run_job }}
      performance_run_job: ${{ steps.check_files.outputs.performance_run_job }}
      remoteconfig_run_job: ${{ steps.check_files.outputs.remoteconfig_run_job }}
      storage_run_job: ${{ steps.check_files.outputs.storage_run_job }}
      base_commit: ${{ steps.check_files.outputs.base_commit }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: check files
        id: check_files
        env:
          pr_branch: ${{ github.event.pull_request.head.ref }}
        run: |
          if [ ! -z "${{ env.METRICS_SERVICE_SECRET }}"  ]; then
          ./scripts/code_coverage_report/get_updated_files.sh
          fi

  pod-lib-lint-abtesting:
    needs: check
    # Don't run on private repo unless it is a PR.
    # always() will trigger this job when `needs` are skipped in a `merge` pull_request event.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.abtesting_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseABTesting --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-auth:
    needs: check
    # Don't run on private repo unless it is a PR.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.auth_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseAuth --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-database:
    needs: check
    # Don't run on private repo unless it is a PR.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.database_run_job == 'true' || github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseDatabase --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-dynamiclinks:
    needs: check
    # Don't run on private repo unless it is a PR.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.dynamiclinks_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseDynamicLinks --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-firestore:
    needs: check
    # Don't run on private repo unless it is a PR.
    # Disable Firestore for now since Firestore currently does not have unit tests in podspecs.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.firestore_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseFirestore --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-functions:
    needs: check
    # Don't run on private repo unless it is a PR.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.functions_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseFunctions --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-inappmessaging:
    needs: check
    # Don't run on private repo unless it is a PR.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.inappmessaging_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseInAppMessaging --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-messaging:
    needs: check
    # Don't run on private repo unless it is a PR.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.messaging_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseMessaging --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-performance:
    needs: check
    # Don't run on private repo unless it is a PR.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.performance_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebasePerformance --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-remoteconfig:
    needs: check
    # Don't run on private repo unless it is a PR.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.remoteconfig_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseRemoteConfig --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  pod-lib-lint-storage:
    needs: check
    # Don't run on private repo unless it is a PR.
    if: always() && github.repository == 'Firebase/firebase-ios-sdk' && (needs.check.outputs.storage_run_job == 'true'|| github.event.pull_request.merged)
    runs-on: macOS-latest
    strategy:
      matrix:
        target: [iOS]
    steps:
    - uses: actions/checkout@v2
    - name: Setup Bundler
      run: scripts/setup_bundler.sh
    - name: Build and test
      run: ./scripts/code_coverage_report/pod_test_code_coverage_report.sh --sdk=FirebaseStorage --platform=${{ matrix.target }}
    - uses: actions/upload-artifact@v2
      with:
        name: codecoverage
        path: /Users/runner/*.xcresult

  create_report:
    needs: [check, pod-lib-lint-abtesting, pod-lib-lint-auth, pod-lib-lint-database, pod-lib-lint-dynamiclinks, pod-lib-lint-firestore, pod-lib-lint-functions, pod-lib-lint-inappmessaging, pod-lib-lint-messaging, pod-lib-lint-performance, pod-lib-lint-remoteconfig, pod-lib-lint-storage]
    if: always()
    runs-on: macOS-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Access to Metrics Service
        if: ${{ env.METRICS_SERVICE_SECRET }} && (github.event.action != 'closed' || github.event.pull_request.merged)
        run: |
          # Install gcloud sdk
          curl https://sdk.cloud.google.com > install.sh
          bash install.sh --disable-prompts
          echo "${HOME}/google-cloud-sdk/bin/" >> $GITHUB_PATH
          export PATH="${HOME}/google-cloud-sdk/bin/:${PATH}"

          # Activate the service account for Metrics Service.
          scripts/decrypt_gha_secret.sh scripts/gha-encrypted/metrics_service_access.json.gpg \
          metrics-access.json "${{ env.METRICS_SERVICE_SECRET }}"
          gcloud auth activate-service-account --key-file metrics-access.json
      - uses: actions/download-artifact@v2
        id: download
        with:
          path: /Users/runner/test
      - name: Compare Diff and Post a Report
        if: github.event.pull_request.merged != true && github.event.action != 'closed' && env.METRICS_SERVICE_SECRET
        env:
          base_commit: ${{ needs.check.outputs.base_commit }}
        run: |
          # Get Head commit of the branch, instead of a merge commit created by actions/checkout.
          GITHUB_SHA=$(cat $GITHUB_EVENT_PATH | jq -r .pull_request.head.sha)
          if [ -d "${{steps.download.outputs.download-path}}" ]; then
          cd scripts/code_coverage_report/generate_code_coverage_report
          swift run CoverageReportGenerator --presubmit "firebase/firebase-ios-sdk" --head-commit "${GITHUB_SHA}" --token $(gcloud auth print-identity-token) --xcresult-dir "/Users/runner/test/codecoverage" --log-link "https://github.com/firebase/firebase-ios-sdk/actions/runs/${GITHUB_RUN_ID}" --pull-request-num ${{github.event.pull_request.number}} --base-commit "$base_commit"
          fi
      - name: Incremental Code Coverage
        if: github.event.pull_request.merged != true && github.event.action != 'closed'
        env:
          base_commit: ${{ needs.check.outputs.base_commit }}
        run: |
          # Get Head commit of the branch, instead of a merge commit created by actions/checkout.
          GITHUB_SHA=$(cat $GITHUB_EVENT_PATH | jq -r .pull_request.head.sha)
          # Get a JSON of `git diff` from the base commit.
          git diff -U0 ${base_commit} "${GITHUB_SHA}" | scripts/code_coverage_report/git_diff_to_json.sh > scripts/code_coverage_report/generate_code_coverage_report/git_diff.json
          cat "scripts/code_coverage_report/generate_code_coverage_report/git_diff.json"
          if [ -d "${{steps.download.outputs.download-path}}" ]; then
            # Create an uncovered_file_lines.json including code lines not covered by tests.
            cd scripts/code_coverage_report/generate_code_coverage_report
            swift run IncrementalCoverageReportGenerator --changed-files "git_diff.json" --file-archive-root-path "${GITHUB_WORKSPACE}" --xcresult-dir "${{steps.download.outputs.download-path}}" --uncovered-line-file-json "uncovered_file_lines.json"
            # Post uncovered lines to PRs.
            pull_number=$(jq --raw-output .pull_request.number "$GITHUB_EVENT_PATH")
            cd ..
            bundle install
            INPUT_ACCESS_TOKEN=${{ secrets.GITHUB_TOKEN }} \
            GITHUB_REPOSITORY="${GITHUB_REPOSITORY}" \
            UNCOVERED_LINE_FILE="generate_code_coverage_report/uncovered_file_lines.json" \
            TESTING_COMMIT="${GITHUB_SHA}" \
            PULL_REQUEST="${pull_number}" \
            bundle exec ruby post_incremental_coverage_in_pr.rb
          fi
      - name: Update New Coverage Data
        if: github.event.pull_request.merged && env.METRICS_SERVICE_SECRET
        run: |
          if [ -d "${{steps.download.outputs.download-path}}" ]; then
          cd scripts/code_coverage_report/generate_code_coverage_report
          swift run CoverageReportGenerator --merge "firebase/firebase-ios-sdk" --head-commit "${GITHUB_SHA}" --token $(gcloud auth print-identity-token) --xcresult-dir "/Users/runner/test/codecoverage" --log-link "https://github.com/firebase/firebase-ios-sdk/actions/runs/${GITHUB_RUN_ID}" --source-branch "${{ github.base_ref }}"
          fi
