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path: root/.github/workflows/approve-contributor.yml
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name: Approve Contributor

on:
  issue_comment:
    types: [created, edited]

jobs:
  approve:
    if: ${{ !github.event.issue.pull_request }}
    runs-on: ubuntu-latest
    permissions:
      contents: write
      issues: write
    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          ref: ${{ github.event.repository.default_branch }}

      - name: Add contributor to approved list
        id: update
        uses: actions/github-script@v9
        with:
          script: |
            const fs = require('fs');

            const issueAuthor = context.payload.issue.user.login;
            const commenter = context.payload.comment.user.login;
            const commentBody = context.payload.comment.body || '';
            const approvedFile = '.github/APPROVED_CONTRIBUTORS';

            if (!/(^|\s)\/approve(?=$|\s)/i.test(commentBody)) {
              console.log('Comment does not contain /approve');
              core.setOutput('status', 'skipped');
              return;
            }

            try {
              const { data: permissionLevel } = await github.rest.repos.getCollaboratorPermissionLevel({
                owner: context.repo.owner,
                repo: context.repo.repo,
                username: commenter,
              });

              if (!['admin', 'write'].includes(permissionLevel.permission)) {
                console.log(`${commenter} does not have write access`);
                core.setOutput('status', 'skipped');
                return;
              }
            } catch (error) {
              console.log(`${commenter} does not have collaborator access`);
              core.setOutput('status', 'skipped');
              return;
            }

            let content = fs.readFileSync(approvedFile, 'utf8');
            const approvedList = content
              .split('\n')
              .map(line => line.trim().toLowerCase())
              .filter(line => line && !line.startsWith('#'));

            if (approvedList.includes(issueAuthor.toLowerCase())) {
              console.log(`${issueAuthor} is already approved`);
              core.setOutput('status', 'already');
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                body: `@${issueAuthor} is already in the approved contributors list.`,
              });
              return;
            }

            content = content.trimEnd() + '\n' + issueAuthor + '\n';
            fs.writeFileSync(approvedFile, content);

            console.log(`Added ${issueAuthor} to approved contributors`);
            core.setOutput('status', 'added');

      - name: Commit and push
        if: steps.update.outputs.status == 'added'
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add .github/APPROVED_CONTRIBUTORS
          git diff --staged --quiet || git commit -m "chore: approve contributor ${{ github.event.issue.user.login }}"
          git push

      - name: Comment on issue
        if: steps.update.outputs.status == 'added'
        uses: actions/github-script@v9
        with:
          script: |
            const issueAuthor = context.payload.issue.user.login;
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              body: `@${issueAuthor} has been added to the approved contributors list. You can now submit PRs. Thanks for contributing!`,
            });