name: Verify first-time contributors

on:
  issue_comment:
    types: [created]

permissions:
  pull-requests: write
  issues: write

jobs:
  verify:
    runs-on: ubuntu-latest
    if: github.event.issue.pull_request && contains(github.event.issue.labels.*.name, 'needs verification')
    steps:
      - name: Verify and reopen PR
        uses: actions/github-script@v7
        with:
          script: |
            const { owner, repo } = context.repo;
            const issue = context.payload.issue;
            const comment = context.payload.comment;
            const { data: pr } = await github.rest.pulls.get({
              owner,
              repo,
              pull_number: issue.number,
            });
            
            // Only allow verification of the comment user is the author
            if (comment.user.login !== pr.user.login) {
              return;
            }

            // Fetch user display and login names (lowercase)
            const { data: user } = await github.rest.users.getByUsername({
              username: pr.user.login,
            });
            const username = pr.user.login.toLowerCase();
            const displayName = (user.name || '').toLowerCase();
            
            // Make comment body lowercase and split words
            const body = comment.body.toLowerCase().trim().replace(/[^a-z0-9_\-\s]/g, '').split(/\s+/);

            // Check that the user verified themselves by writing a song about the NES and the SNES.
            const verified =
                (body.includes(username) ||
                (displayName && body.includes(displayName))) &&
                body.includes('azahar');

            // Only reopen the PR and remove the label if verification succeeded
            if (verified) {
              await github.rest.pulls.update({
                owner,
                repo,
                pull_number: issue.number,
                state: 'open',
              });
              await github.rest.issues.createComment({
                owner,
                repo,
                issue_number: issue.number,
                body: 'Verification successful! Pull request has been reopened. Please also edit your PR description to remove the block of text between `---` to make the description easier to read.',
              });
              try {
                await github.rest.issues.removeLabel({
                  owner,
                  repo,
                  issue_number: issue.number,
                  name: 'needs verification',
                });
              } catch {}
            } else {
              await github.rest.issues.createComment({
                owner,
                repo,
                issue_number: issue.number,
                body: 'Verification failed! Pull request will remain closed.',
              });
            }