name: lint

on:
  pull_request:
    paths:
      - '**.h'
      - '**.cc'

permissions:
  contents: read
  pull-requests: write

jobs:
  format_code:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6

    - name: Install clang-format
      uses: aminya/setup-cpp@290824452986e378826155f3379d31bce8753d76 # v0.37.0
      with:
        clangformat: 17.0.5

    - name: Run clang-format
      id: clang_format
      run: |
        find include src -name '*.h' -o -name '*.cc' |  xargs clang-format -i -style=file -fallback-style=none
        git diff | tee fmt.patch
        if [ -s fmt.patch ]; then
          exit 1
        fi
    - uses: actions/github-script@v7
      if: failure() && steps.clang_format.outcome == 'failure'
      with:
        script: |
          const fs = require('fs');
          const patch = fs.readFileSync('fmt.patch', { encoding: 'utf8' });
          const comment = `clang-format 17.0.5 found issues in the formatting in your code:
          <details>
          <summary>
          View the diff from clang-format:
          </summary>

          \`\`\`diff
          ${patch}
          \`\`\`

          </details>
          `;
          await github.rest.issues.createComment({
            issue_number: context.issue.number,
            owner: context.repo.owner,
            repo: context.repo.repo,
            body: comment
          });