code_review.yml

name: AI Code Review

on:
  pull_request:
    types: [opened, synchronize]

jobs:
  review:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write  # required to post a comment

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0  # full history needed for git diff

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Install dependencies
        run: |
          pip install -r requirements.txt
          pip install -e .

      - name: Generate diff
        id: diff
        run: |
          git diff origin/${{ github.base_ref }}...HEAD > pr.diff
          git diff --name-only origin/${{ github.base_ref }}...HEAD > pr_files.txt

      - name: Run AI code review
        env:
          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
        run: |
          code-review --file pr.diff --output review.md

      - name: Post review as PR comment
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const review = fs.readFileSync('review.md', 'utf8');
            const body = `## AI Code Review\n\n${review}\n\n---\n*Generated by [multi-agent-code-review](https://github.com/${{ github.repository }})*`;

            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              body,
            });