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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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name: Copilot auto review

on:
  pull_request_target:
    types: [opened, reopened, ready_for_review, synchronize]

permissions: {}

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

jobs:
  request-review:
    if: >-
      github.event.pull_request.draft == false &&
      !endsWith(github.event.pull_request.user.login, '[bot]') &&
      !contains(github.event.pull_request.labels.*.name, 'copilot-skip')
    runs-on: ubuntu-latest
    timeout-minutes: 5

    steps:
      # pull_request_target exposes the repository secret to fork PR events.
      # Never checkout, execute, or otherwise consume untrusted PR code here.
      - name: Request GitHub Copilot review
        env:
          GH_TOKEN: ${{ secrets.COPILOT_REVIEW_TOKEN }}
          EXPECTED_REVIEW_REQUESTER: hqhq1025
          PR_NUMBER: ${{ github.event.pull_request.number }}
        run: |
          if [[ -z "${GH_TOKEN:-}" ]]; then
            echo "::error::COPILOT_REVIEW_TOKEN is not configured"
            exit 1
          fi

          review_requester="$(gh api user --jq '.login')"
          if [[ "${review_requester}" != "${EXPECTED_REVIEW_REQUESTER}" ]]; then
            echo "::error::COPILOT_REVIEW_TOKEN belongs to ${review_requester}, expected ${EXPECTED_REVIEW_REQUESTER}"
            exit 1
          fi

          if gh api \
            "repos/${GITHUB_REPOSITORY}/pulls/${PR_NUMBER}/requested_reviewers" \
            --jq '.users[].login' | \
            grep -Fxq 'copilot-pull-request-reviewer[bot]'; then
            exit 0
          fi

          gh api \
            --method POST \
            "repos/${GITHUB_REPOSITORY}/pulls/${PR_NUMBER}/requested_reviewers" \
            -f 'reviewers[]=copilot-pull-request-reviewer[bot]'