# ======================================================================================
# Workflow: Cleanup Fix PRs
# ======================================================================================
# Usage:
#   - This workflow cleans up PRs generated by Fix Failing Checks
#
# Expected Output:
#   - The workflow should close all PRs created by the github-actions bot that are based on a branch with the auto-fix-ci label after it closes
#
# ======================================================================================

name: Cleanup Fix PRs
on:
  pull_request:
    types: [closed]

jobs:
  close-fix-prs:
    runs-on: ubuntu-latest
    if: contains(github.event.pull_request.labels.*.name, 'auto-fix-ci')
    steps:
      - name: Close Dependent Fix PRs
        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
        with:
          script: |
            const { pull_request: pr, repository } = context.payload;
            const { owner, repo } = context.repo;

            const closedBranch = pr.head.ref;
            console.log(`Original PR #${pr.number} closed. Head ref was: ${closedBranch}`);
            
            // Find open PRs that target the closed PR's branch
            const { data: openPRs } = await github.rest.pulls.list({
              owner,
              repo,
              state: 'open',
              base: closedBranch
            });
            
            if (openPRs.length === 0) {
              console.log('No open fix PRs found targeting this branch.');
              return;
            }
            
            console.log(`Found ${openPRs.length} open PRs targeting ${closedBranch}. Closing them...`);
            
            for (const openPR of openPRs) {
              if (openPR.user.login !== 'github-actions[bot]') {
                console.log(`Skipping PR #${openPR.number} created by ${openPR.user.login} (not github-actions[bot])`);
                continue;
              }

              console.log(`Closing PR #${openPR.number}: ${openPR.title}`);
              
              // Comment on the fix PR
              await github.rest.issues.createComment({
                owner,
                repo,
                issue_number: openPR.number,
                body: `Closing this fix PR because the parent PR #${pr.number} has been merged.`
              });
              
              // Close the fix PR
              await github.rest.pulls.update({
                owner,
                repo,
                pull_number: openPR.number,
                state: 'closed'
              });
            }