name: Claude PR Review

on:
  pull_request:
    types: [opened, synchronize, ready_for_review]

permissions:
  contents: read
  pull-requests: write
  issues: read
  id-token: write

concurrency:
  group: claude-review-${{ github.event.pull_request.number }}
  cancel-in-progress: true

jobs:
  review:
    if: github.event.pull_request.draft == false
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Compose review prompt
        id: compose
        run: |
          {
            printf 'prompt<<PROMPT_EOF\n'
            if [ -f REVIEW.md ]; then
              echo '# Highest-priority review instructions (from REVIEW.md at the repo root)'
              echo 'Follow these rules as the authoritative guide for this review. If anything'
              echo 'below contradicts a more generic review habit, follow these.'
              echo
              cat REVIEW.md
              echo
              echo '---'
              echo
            fi
            cat <<'BASE'
          Review this pull request against the main branch.

          Tag every finding with a priority label: P0 (blocks merge), P1 (worth
          fixing, not blocking), or P2 (informational / pre-existing). Open the
          review body with a one-line tally ("2 P0, 3 P1", or
          "No blocking issues — 3 P1", or "LGTM" if nothing). Cite file:line for
          every behavior claim. Prefer inline comments over long summaries.

          Fallback focus if REVIEW.md is missing: correctness, security (auth,
          injection, SSRF), LiteLLM/Bedrock routing breakage, agent loop / streaming
          regressions, test coverage for new behavior. Skip anything ruff already
          catches.
          BASE
            printf 'PROMPT_EOF\n'
          } >> "$GITHUB_OUTPUT"

      - uses: anthropics/claude-code-action@v1
        with:
          anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
          track_progress: true
          prompt: ${{ steps.compose.outputs.prompt }}