name: CI

on: [push, pull_request]

jobs:
  build-image:
    strategy:
      fail-fast: false
      matrix:
        include:
          - runner: ubuntu-latest-amd64
            arch: amd64
          - runner: ubuntu-latest-arm64
            arch: arm64
    runs-on: ${{ matrix.runner }}
    steps:
      - uses: actions/checkout@v4

      - name: Log in to registry
        run: |
          echo "${{ secrets.REGISTRY_TOKEN }}" \
            | sudo docker login -u "${{ secrets.REGISTRY_USER }}" --password-stdin git.weaselab.dev

      - name: Build and push image if changed
        run: |
          image=git.weaselab.dev/weaselab/conflict-set-ci
          tag="$(sha256sum Dockerfile .pre-commit-config.yaml | sha256sum | cut -c 1-16)-${{ matrix.arch }}"
          latest=latest-${{ matrix.arch }}
          if sudo docker manifest inspect "$image:$tag" > /dev/null 2>&1; then
            if [ "$(sudo docker manifest inspect "$image:$tag")" = "$(sudo docker manifest inspect "$image:$latest" 2> /dev/null)" ]; then
              echo "$image:$latest is up to date"
            else
              sudo docker pull "$image:$tag"
              sudo docker tag "$image:$tag" "$image:$latest"
              sudo docker push "$image:$latest"
            fi
          else
            sudo docker build -t "$image:$tag" -t "$image:$latest" .
            sudo docker push "$image:$tag"
            sudo docker push "$image:$latest"
          fi

  pre-commit:
    needs: build-image
    runs-on: ubuntu-latest-amd64
    container:
      image: git.weaselab.dev/weaselab/conflict-set-ci:latest-amd64
      credentials:
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_TOKEN }}
    steps:
      - uses: actions/checkout@v4

      - name: Run pre-commit
        env:
          # use the hooks pre-installed in the image
          HOME: /tmp
        run: |
          git config --global --add safe.directory "$PWD"
          pre-commit run --all-files --show-diff-on-failure

  test:
    needs: build-image
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: 64-bit-versions
            cmake_args: -DCMAKE_CXX_FLAGS=-DUSE_64_BIT=1
          - name: debug
            cmake_args: -DCMAKE_BUILD_TYPE=Debug
          - name: simd-fallback
            cmake_args: -DUSE_SIMD_FALLBACK=ON
          - name: gcc
            cmake_args: -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++
    runs-on: ubuntu-latest-amd64
    container:
      image: git.weaselab.dev/weaselab/conflict-set-ci:latest-amd64
      credentials:
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_TOKEN }}
    steps:
      - uses: actions/checkout@v4

      - uses: actions/cache@v4
        with:
          path: .ccache
          key: ccache-${{ matrix.name }}-${{ gitea.sha }}
          restore-keys: |
            ccache-${{ matrix.name }}-

      - name: Build
        run: |
          export CCACHE_DIR="$GITHUB_WORKSPACE/.ccache"
          rm -rf build
          cmake -S . -B build -G Ninja -DCMAKE_CXX_COMPILER_LAUNCHER=ccache ${{ matrix.cmake_args }}
          ninja -C build
          ccache -s

      - name: Test
        run: |
          cd build
          ctest --no-compress-output --test-output-size-passed 100000 --test-output-size-failed 100000 -T Test -j "$(nproc)" --timeout 90 > /dev/null

      - name: Upload test results to MinIO
        if: always()
        env:
          MINIO_ACCESS_KEY: ${{ secrets.MINIO_ACCESS_KEY }}
          MC_HOST_minio: https://${{ secrets.MINIO_ACCESS_KEY }}:${{ secrets.MINIO_SECRET_KEY }}@minio.weaselab.dev
        run: |
          if [ -z "$MINIO_ACCESS_KEY" ]; then
            echo "MinIO credentials not configured; skipping upload"
            exit 0
          fi
          zstd build/Testing/*/Test.xml
          mc cp build/Testing/*/Test.xml.zst "minio/jenkins/conflict-set/${{ gitea.run_number }}/${{ matrix.name }}/"

  release:
    needs: build-image
    strategy:
      fail-fast: false
      matrix:
        include:
          - runner: ubuntu-latest-amd64
            arch: amd64
          - runner: ubuntu-latest-arm64
            arch: arm64
    runs-on: ${{ matrix.runner }}
    container:
      image: git.weaselab.dev/weaselab/conflict-set-ci:latest-${{ matrix.arch }}
      credentials:
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_TOKEN }}
    steps:
      - uses: actions/checkout@v4

      - uses: actions/cache@v4
        with:
          path: .ccache
          key: ccache-release-${{ matrix.arch }}-${{ gitea.sha }}
          restore-keys: |
            ccache-release-${{ matrix.arch }}-

      - name: Build
        run: |
          export CCACHE_DIR="$GITHUB_WORKSPACE/.ccache"
          rm -rf build
          cmake -S . -B build -G Ninja -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_FLAGS=-DNVALGRIND
          ninja -C build
          ccache -s

      - name: Test
        run: |
          cd build
          ctest --no-compress-output --test-output-size-passed 100000 --test-output-size-failed 100000 -T Test -j "$(nproc)" --timeout 90 > /dev/null

      - name: Package
        run: |
          cd build
          cpack -G DEB
          cpack -G RPM

      - name: Build paper
        if: matrix.arch == 'amd64'
        run: |
          cd paper
          make

      - name: Upload artifacts to MinIO
        if: always()
        env:
          MINIO_ACCESS_KEY: ${{ secrets.MINIO_ACCESS_KEY }}
          MC_HOST_minio: https://${{ secrets.MINIO_ACCESS_KEY }}:${{ secrets.MINIO_SECRET_KEY }}@minio.weaselab.dev
        run: |
          if [ -z "$MINIO_ACCESS_KEY" ]; then
            echo "MinIO credentials not configured; skipping upload"
            exit 0
          fi
          dest="minio/jenkins/conflict-set/${{ gitea.run_number }}/release-${{ matrix.arch }}/"
          zstd build/Testing/*/Test.xml
          mc cp build/Testing/*/Test.xml.zst "$dest"
          mc cp build/*.deb build/*.rpm "$dest"
          if compgen -G "paper/*.pdf" > /dev/null; then
            mc cp paper/*.pdf "$dest"
          fi

  coverage:
    needs: build-image
    runs-on: ubuntu-latest-amd64
    container:
      image: git.weaselab.dev/weaselab/conflict-set-ci:latest-amd64
      credentials:
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_TOKEN }}
    steps:
      - uses: actions/checkout@v4

      - uses: actions/cache@v4
        with:
          path: .ccache
          key: ccache-coverage-${{ gitea.sha }}
          restore-keys: |
            ccache-coverage-

      - name: Build
        run: |
          export CCACHE_DIR="$GITHUB_WORKSPACE/.ccache"
          rm -rf build
          cmake -S . -B build -G Ninja -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
            -DCMAKE_C_FLAGS=--coverage -DCMAKE_CXX_FLAGS=--coverage \
            -DCMAKE_BUILD_TYPE=Debug -DDISABLE_TSAN=ON
          ninja -C build
          ccache -s

      - name: Test
        run: |
          cd build
          ctest --no-compress-output --test-output-size-passed 100000 --test-output-size-failed 100000 -T Test -j "$(nproc)" --timeout 90 > /dev/null

      - name: Coverage report
        run: |
          gcov_args=(-f ConflictSet.cpp -f LongestCommonPrefix.h -f Metrics.h
                     --gcov-executable "llvm-cov gcov" --exclude-noncode-lines)
          gcovr "${gcov_args[@]}" --cobertura > build/coverage.xml
          gcovr "${gcov_args[@]}"
          gcovr "${gcov_args[@]}" --fail-under-line 100 > /dev/null

      - name: Upload results to MinIO
        if: always()
        env:
          MINIO_ACCESS_KEY: ${{ secrets.MINIO_ACCESS_KEY }}
          MC_HOST_minio: https://${{ secrets.MINIO_ACCESS_KEY }}:${{ secrets.MINIO_SECRET_KEY }}@minio.weaselab.dev
        run: |
          if [ -z "$MINIO_ACCESS_KEY" ]; then
            echo "MinIO credentials not configured; skipping upload"
            exit 0
          fi
          dest="minio/jenkins/conflict-set/${{ gitea.run_number }}/coverage/"
          zstd build/Testing/*/Test.xml
          mc cp build/Testing/*/Test.xml.zst "$dest"
          if [ -e build/coverage.xml ]; then
            mc cp build/coverage.xml "$dest"
          fi