post-merge-cleanup.yml

name: Post-Merge Cleanup

on:
  pull_request:
    types: [closed]
    branches:
      - master
      - main

jobs:
  cleanup-consolidated-prs:
    name: Clean up consolidated PRs and branches
    runs-on: ubuntu-latest
    # Only run if PR was merged (not just closed)
    if: github.event.pull_request.merged == true

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Check if this is the consolidation PR
        id: check_consolidation
        run: |
          # Check if PR title or description mentions consolidation
          PR_TITLE="${{ github.event.pull_request.title }}"
          PR_BODY="${{ github.event.pull_request.body }}"

          if [[ "$PR_TITLE" == *"Consolidate"* ]] || [[ "$PR_TITLE" == *"consolidate"* ]] || \
             [[ "$PR_BODY" == *"PRs Consolidated"* ]] || [[ "$PR_BODY" == *"consolidat"* ]]; then
            echo "is_consolidation=true" >> $GITHUB_OUTPUT
            echo "This is a consolidation PR - will perform cleanup"
          else
            echo "is_consolidation=false" >> $GITHUB_OUTPUT
            echo "Not a consolidation PR - skipping cleanup"
          fi

      - name: Close consolidated PRs
        if: steps.check_consolidation.outputs.is_consolidation == 'true'
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const owner = context.repo.owner;
            const repo = context.repo.repo;

            // List of PR numbers to close (from consolidation)
            const prsToClose = [1, 7, 8, 10, 12, 14, 15];

            // Add comment and close each PR
            for (const prNumber of prsToClose) {
              try {
                // Check if PR exists and is open
                const { data: pr } = await github.rest.pulls.get({
                  owner,
                  repo,
                  pull_number: prNumber
                });
                
                if (pr.state === 'open') {
                  // Add comment explaining consolidation
                  await github.rest.issues.createComment({
                    owner,
                    repo,
                    issue_number: prNumber,
                    body: `This PR has been consolidated into #${{ github.event.pull_request.number }} and merged to master.\n\nAll changes from this PR are included in the consolidated merge. Closing as completed.`
                  });
                  
                  // Close the PR
                  await github.rest.pulls.update({
                    owner,
                    repo,
                    pull_number: prNumber,
                    state: 'closed'
                  });
                  
                  console.log(`✅ Closed PR #${prNumber}`);
                } else {
                  console.log(`ℹ️ PR #${prNumber} is already ${pr.state}`);
                }
              } catch (error) {
                console.log(`⚠️ Could not process PR #${prNumber}: ${error.message}`);
              }
            }

      - name: Delete consolidated branches
        if: steps.check_consolidation.outputs.is_consolidation == 'true'
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const owner = context.repo.owner;
            const repo = context.repo.repo;

            // List of branches to delete (from consolidation)
            const branchesToDelete = [
              'refactor-cleanup',
              'phase1-refactor-pyscript-deps',
              'fix/eslint-errors',
              'snyk-upgrade-element-plus-2.9.1',
              'snyk-upgrade-element-plus-2.9.5',
              'snyk-upgrade-element-plus-2.10.5'
            ];

            for (const branch of branchesToDelete) {
              try {
                await github.rest.git.deleteRef({
                  owner,
                  repo,
                  ref: `heads/${branch}`
                });
                console.log(`✅ Deleted branch: ${branch}`);
              } catch (error) {
                console.log(`⚠️ Could not delete branch ${branch}: ${error.message}`);
              }
            }

      - name: Create cleanup summary
        if: steps.check_consolidation.outputs.is_consolidation == 'true'
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const owner = context.repo.owner;
            const repo = context.repo.repo;

            // Add comment to the merged PR summarizing cleanup
            await github.rest.issues.createComment({
              owner,
              repo,
              issue_number: context.issue.number,
              body: `## 🧹 Post-Merge Cleanup Complete\n\n` +
                    `✅ Consolidated PRs have been closed\n` +
                    `✅ Obsolete branches have been deleted\n\n` +
                    `The repository is now clean and ready for future development.`
            });