name: registry-compatibility
on:
  pull_request:
    paths:
      - 'src/ExportCenter/**'
      - 'src/ReleaseOrchestrator/**/Connectors/Registry/**'
      - 'src/__Tests/**Registry**'
      - 'src/__Libraries/StellaOps.Doctor.Plugins.Integration/**'
  schedule:
    - cron: '0 4 * * 1'  # Weekly on Monday at 4 AM UTC
  workflow_dispatch: {}

env:
  DOTNET_NOLOGO: true
  DOTNET_CLI_TELEMETRY_OPTOUT: true

jobs:
  registry-matrix:
    name: Registry ${{ matrix.registry }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        registry: [generic-oci, zot, distribution, harbor]
      fail-fast: false
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup .NET
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: "10.0.100"

      - name: Restore dependencies
        run: |
          dotnet restore src/__Tests/__Libraries/StellaOps.Infrastructure.Registry.Testing.Tests/StellaOps.Infrastructure.Registry.Testing.Tests.csproj

      - name: Build test project
        run: |
          dotnet build src/__Tests/__Libraries/StellaOps.Infrastructure.Registry.Testing.Tests/StellaOps.Infrastructure.Registry.Testing.Tests.csproj --no-restore

      - name: Run compatibility tests for ${{ matrix.registry }}
        run: |
          dotnet test src/__Tests/__Libraries/StellaOps.Infrastructure.Registry.Testing.Tests/StellaOps.Infrastructure.Registry.Testing.Tests.csproj \
            --no-build \
            --filter "Category=RegistryCompatibility" \
            --logger "trx;LogFileName=${{ matrix.registry }}-results.trx" \
            --results-directory TestResults \
            -- xunit.parallelizeTestCollections=false
        timeout-minutes: 15

      - name: Upload test results
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: registry-compat-${{ matrix.registry }}
          path: TestResults/
          retention-days: 30

  compatibility-report:
    name: Generate Compatibility Report
    runs-on: ubuntu-latest
    needs: registry-matrix
    if: always()
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Download all artifacts
        uses: actions/download-artifact@v4
        with:
          path: TestResults
          pattern: registry-compat-*

      - name: Generate compatibility matrix
        run: |
          echo "# Registry Compatibility Matrix" > compatibility-report.md
          echo "" >> compatibility-report.md
          echo "Generated: $(date -u +%Y-%m-%dT%H:%M:%SZ)" >> compatibility-report.md
          echo "" >> compatibility-report.md
          echo "| Registry | OCI Compliance | Referrers API | Auth | Capabilities | Status |" >> compatibility-report.md
          echo "|----------|---------------|---------------|------|--------------|--------|" >> compatibility-report.md

          for registry in generic-oci zot distribution harbor; do
            trx_file="TestResults/registry-compat-${registry}/${registry}-results.trx"
            if [ -f "$trx_file" ]; then
              # Count passed/failed from trx file
              passed=$(grep -c 'outcome="Passed"' "$trx_file" 2>/dev/null || echo "0")
              failed=$(grep -c 'outcome="Failed"' "$trx_file" 2>/dev/null || echo "0")

              if [ "$failed" -eq "0" ]; then
                status="Pass"
              else
                status="Fail ($failed)"
              fi
            else
              status="No results"
            fi

            # Referrers API support
            case $registry in
              generic-oci) referrers="Fallback" ;;
              zot|harbor|distribution) referrers="Native" ;;
            esac

            echo "| $registry | $passed tests | $referrers | Basic | Full | $status |" >> compatibility-report.md
          done

          echo "" >> compatibility-report.md
          echo "## Legend" >> compatibility-report.md
          echo "- **Native**: Full OCI 1.1 referrers API support" >> compatibility-report.md
          echo "- **Fallback**: Uses tag-based discovery (sha256-{digest}.*)" >> compatibility-report.md

          cat compatibility-report.md

      - name: Upload compatibility report
        uses: actions/upload-artifact@v4
        with:
          name: compatibility-report
          path: compatibility-report.md
          retention-days: 90

      - name: Comment on PR
        if: github.event_name == 'pull_request'
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const report = fs.readFileSync('compatibility-report.md', 'utf8');

            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: report
            });

  doctor-checks:
    name: Doctor Registry Checks
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup .NET
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: "10.0.100"

      - name: Build Doctor plugin tests
        run: |
          dotnet build src/__Tests/__Libraries/StellaOps.Doctor.Plugins.Integration.Tests/StellaOps.Doctor.Plugins.Integration.Tests.csproj

      - name: Run Doctor check tests
        run: |
          dotnet test src/__Tests/__Libraries/StellaOps.Doctor.Plugins.Integration.Tests/StellaOps.Doctor.Plugins.Integration.Tests.csproj \
            --no-build \
            --logger "trx;LogFileName=doctor-registry-results.trx" \
            --results-directory TestResults

      - name: Upload test results
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: doctor-registry-checks
          path: TestResults/
          retention-days: 30