name: Update Submodules

on:
  schedule:
    - cron: '0 0 * * *' # Runs daily at midnight
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

jobs:
  update-submodules:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
        with:
          submodules: true
          fetch-depth: 0

      - name: Update submodules
        run: |
          git submodule update --remote --recursive

      - name: Check for changes
        id: diff
        run: |
          if [ -n "$(git status --porcelain)" ]; then
            echo "changes=true" >> $GITHUB_OUTPUT
          else
            echo "changes=false" >> $GITHUB_OUTPUT
          fi

      - name: Create Pull Request
        if: steps.diff.outputs.changes == 'true'
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: "chore: update submodules"
          title: "chore: update submodules"
          body: "Automated update of submodules to their latest commits."
          branch: update-submodules
          base: main
          delete-branch: true