name: Auto Update .app-files

on:
  push:
    branches:
      - main
    paths:
      - 'ct/**.sh'
  workflow_dispatch:  # Ermöglicht das manuelle Ausführen der Action

jobs:
  update-app-files:
    runs-on: ubuntu-latest

    permissions:
      contents: write
      pull-requests: write

    steps:
      # Step 1: Checkout repository
      - name: Checkout repository
        uses: actions/checkout@v2

      # Step 2: Set up Git user for committing changes
      - name: Set up Git
        run: |
          git config --global user.name "GitHub Actions"
          git config --global user.email "github-actions[bot]@users.noreply.github.com"

      # Step 3: Install figlet
      - name: Install figlet
        run: sudo apt-get install -y figlet

      # Step 4: Run the updated generate-app-files.sh script
      - name: Run generate-app-files.sh
        run: |
          chmod +x .github/workflows/scripts/generate-app-headers.sh
          .github/workflows/scripts/generate-app-headers.sh
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      # Step 5: Check if there are any changes
      - name: Check if there are any changes
        id: verify-diff
        run: |
          if git diff --quiet; then
            echo "No changes detected."
            echo "changed=false" >> $GITHUB_OUTPUT
          else
            echo "Changes detected."
            echo "changed=true" >> $GITHUB_OUTPUT
          fi

      # Step 6: Commit changes (if any) and create a PR
      - name: Commit and create PR if changes exist
        if: steps.verify-diff.outputs.changed == 'true'
        run: |
          git add -A
          git commit -m "Update .app files"
          git checkout -b pr-update-app-files
          git push origin pr-update-app-files --force

          gh pr create --title "[core] update .app files" \
                       --body "This PR is auto-generated by a GitHub Action to update the .app files." \
                       --head pr-update-app-files \
                       --base main \
                       --label "automated pr"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      # Step 7: Output success message when no changes
      - name: No changes detected
        if: steps.verify-diff.outputs.changed == 'false'
        run: echo "No changes to commit. Workflow completed successfully."

      # Step 8: Re-approve pull request after update
      - name: Re-approve pull request after update
        if: steps.verify-diff.outputs.changed == 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          PR_NUMBER=$(gh pr list --head "pr-update-app-files" --json number --jq '.[].number')

          if [ -n "$PR_NUMBER" ]; then
            PR_AUTHOR=$(gh pr view "$PR_NUMBER" --json author --jq '.author.login')

            # Skip approval if the PR was created by the bot
            if [ "$PR_AUTHOR" != "github-actions[bot]" ]; then
              gh pr review "$PR_NUMBER" --approve
            else
              echo "Skipping approval: PR was created by the bot."
            fi
          else
            echo "No PR found for the current branch."
          fi

          else
            echo "No PR found for the current branch."
          fi