name: Perform checks

on:
  pull_request:
    branches: [ master ]
    paths:
      - '**'
      - '!.github/**'
      - '!*.yml'
      - '!*.config'
      - '!*.md'
      - '.github/workflows/*.yml'

  pull_request_target:
    branches: [ master ]
    types: [closed]

permissions:
  pull-requests: write
  checks: write

concurrency:
  group: pr-checks-${{ github.event.number }}
  cancel-in-progress: true

jobs:
  format:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/setup-dotnet@v4
        with:
          global-json-file: global.json

      - name: Overwrite csc problem matcher
        run: echo "::add-matcher::.github/csc.json"

      - run: dotnet restore

      - name: Print dotnet format version
        run: dotnet format --version

      - name: Run dotnet format whitespace
        run: |
          dotnet format whitespace --verify-no-changes --report ./whitespace-report.json -v d

      # For some unknown reason this step sometimes fails with exit code 139 (segfault?),
      # so in that case we'll try again (3 tries max).
      - name: Run dotnet format style
        uses: TSRBerry/unstable-commands@v1
        with:
          commands: dotnet format style --severity info --verify-no-changes --report ./style-report.json -v d
          timeout-minutes: 5
          retry-codes: 139

      # For some unknown reason this step sometimes fails with exit code 139 (segfault?),
      # so in that case we'll try again (3 tries max).
      - name: Run dotnet format analyzers
        uses: TSRBerry/unstable-commands@v1
        with:
          commands: dotnet format analyzers --severity info --verify-no-changes --report ./analyzers-report.json -v d
          timeout-minutes: 5
          retry-codes: 139

      - name: Upload report
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: dotnet-format
          path: ./*-report.json

  pr_build:
    uses: ./.github/workflows/build.yml
    needs: format
    secrets: inherit

  cleanup:
    if: github.event.pull_request.merged == false
    runs-on: ubuntu-latest
    steps:
      - name: Setup gh extension
        run: |
          gh extension install actions/gh-actions-cache

      - name: Cleanup
        run: |
          echo "Fetching list of cache keys"
          cacheKeysForPR=$(gh actions-cache list -R $REPO -B $BRANCH -L 100 | cut -f 1 )

          ## Setting this to not fail the workflow while deleting cache keys.
          set +e
          echo "Deleting caches..."
          for cacheKey in $cacheKeysForPR
          do
              gh actions-cache delete $cacheKey -R $REPO -B $BRANCH --confirm
          done
          echo "Done"
        env:
          GH_TOKEN: ${{ github.token }}
          REPO: ${{ github.repository }}
          BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge