name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  build-and-test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install .NET 8
        run: |
          curl -sSL https://dot.net/v1/dotnet-install.sh -o dotnet-install.sh
          chmod +x dotnet-install.sh
          ./dotnet-install.sh --channel 8.0 --install-dir $HOME/.dotnet
          echo "$HOME/.dotnet" >> $GITHUB_PATH
          echo "DOTNET_ROOT=$HOME/.dotnet" >> $GITHUB_ENV

      - name: Restore (Linux solution filter — excludes Windows-only WPF app)
        run: dotnet restore TeamsISO.Linux.slnf

      - name: Build (Release, treat warnings as errors)
        run: dotnet build TeamsISO.Linux.slnf --configuration Release --no-restore

      - name: Test (excluding requires=ndi)
        run: >
          dotnet test TeamsISO.Linux.slnf
          --configuration Release
          --no-build
          --logger "trx;LogFileName=test-results.trx"
          --collect:"XPlat Code Coverage"
          --settings coverlet.runsettings
          --filter "Category!=ndi&requires!=ndi"

      - name: Install ReportGenerator
        run: dotnet tool install --global dotnet-reportgenerator-globaltool

      - name: Generate coverage report
        run: |
          export PATH="$PATH:$HOME/.dotnet/tools"
          reportgenerator \
            -reports:"**/coverage.cobertura.xml" \
            -targetdir:coverage-report \
            -reporttypes:"Cobertura;TextSummary" \
            -assemblyfilters:"+TeamsISO.Engine;-TeamsISO.Engine.NdiInterop"

      - name: Enforce coverage threshold (80%)
        run: |
          summary=$(cat coverage-report/Summary.txt)
          echo "$summary"
          line_coverage=$(echo "$summary" | awk '/Line coverage/ {print $3}' | tr -d '%')
          echo "Line coverage: $line_coverage%"
          awk -v c="$line_coverage" 'BEGIN { if (c+0 < 80) { exit 1 } }'

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results
          path: '**/test-results.trx'

      - name: Upload coverage report
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: coverage-report
          path: coverage-report/