name: Core Feature Alert

on:
  pull_request:
    types:
      - opened
      - synchronize
    paths:
      - src/lib/features/client-feature-toggles/*
      - src/lib/features/frontend-api/*

jobs:
  check-core-feature:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout the repository
        uses: actions/checkout@v3

      - name: Fetch PR details
        id: pr-details
        run: |
          echo "PR_NUMBER=${{ github.event.pull_request.number }}" >> $GITHUB_ENV
          echo "PR_CREATOR=${{ github.event.pull_request.user.login }}" >> $GITHUB_ENV

      - name: Check if reviewers or comment already exist
        id: check-comment
        uses: actions/github-script@v6
        with:
          script: |
            const prNumber = context.payload.pull_request.number;

            // Check if a comment already exists
            const comments = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: prNumber,
            });

            const hasComment = comments.data.some(comment =>
              comment.body.includes("Core features have been modified")
            );

            // Check if reviewers are already assigned
            const reviewers = await github.rest.pulls.listRequestedReviewers({
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: prNumber,
            });

            const hasReviewers = reviewers.data.users.length > 0;

            core.setOutput('hasComment', hasComment);
            core.setOutput('hasReviewers', hasReviewers);
        outputs:
          hasComment: ${{ steps.check-comment.outputs.hasComment }}
          hasReviewers: ${{ steps.check-comment.outputs.hasReviewers }}

      - name: Add reviewers and comment if necessary
        if: steps.check-comment.outputs.hasComment == 'false' || steps.check-comment.outputs.hasReviewers == 'false'
        uses: actions/github-script@v6
        with:
          script: |
            const prNumber = context.payload.pull_request.number;
            const prCreator = context.payload.pull_request.user.login;

          
            if (!${{ steps.check-comment.outputs.hasComment }}) {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                body: `@${prCreator}, core features have been modified in this pull request. Reviewers have been added.`,
              });
            }

            if (!${{ steps.check-comment.outputs.hasReviewers }}) {
              await github.rest.pulls.requestReviewers({
                owner: context.repo.owner,
                repo: context.repo.repo,
                pull_number: prNumber,
                reviewers: ['FredrikOseberg'], // Do not include @ in reviewer names
              });
            }