name: Progress report

on:
  pull_request:
    paths:
      - 'core/libs/prx/**'
      - 'tools/progress.py'
      - '.github/workflows/progress-report.yml'

permissions:
  contents: read

jobs:
  report:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
        with:
          fetch-depth: 2
      - env:
          PR: ${{ github.event.pull_request.number }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: |
          out=$RUNNER_TEMP/out report=$RUNNER_TEMP/report
          git worktree add --detach "$RUNNER_TEMP/base" HEAD^1
          python3 tools/progress.py --root "$RUNNER_TEMP/base" "$out/base"
          python3 tools/progress.py "$out/head"
          mkdir "$report"
          echo "$PR" > "$report/pr"
          body=$(python3 tools/progress.py --compare "$out/base/progress.json" "$out/head/progress.json")
          if [ -n "$body" ]; then
            printf '### Progress report (%s → %s)\n\n%s\n' "$(git rev-parse --short HEAD^1)" "${HEAD_SHA::7}" "$body" > "$report/report.md"
            cat "$report/report.md" >> "$GITHUB_STEP_SUMMARY"
          fi
      - uses: actions/upload-artifact@v7
        with:
          name: progress-report
          path: ${{ runner.temp }}/report