update-pr-description.yml

name: Update PR Description
on:
  pull_request:
    types: [opened]
jobs:
  update-description:
    runs-on: ubuntu-latest
    steps:
      - name: Update PR Description
        uses: actions/github-script@v7
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            const branchName = context.payload.pull_request.head.ref;
            const prNumber = context.payload.pull_request.number;
            const owner = context.repo.owner;
            const repo = context.repo.repo;
            
            const { data: prData } = await github.rest.pulls.get({
              owner: owner,
              repo: repo,
              pull_number: prNumber
            });
            
            let body = prData.body;
            
            const issueNumberMatch = branchName.match(/feature\/(\d+)/);
            const issueNumber = issueNumberMatch ? issueNumberMatch[1] : '';
            
            if (issueNumber) {
              body = prData.body.replace(/{issue-number}/g, issueNumber);
            }
            
            const branchNameCropped = branchName.split('feature/')[1];
            body = prData.body.replace(/{branch-name}/g, branchNameCropped);
                        
            await github.rest.pulls.update({
              owner: owner,
              repo: repo,
              pull_number: prNumber,
              body: body
            });