name: Submodule push

on:
  push:
    branches: [ main ]
    paths:
      - "home-manager/core/dotfiles/**"
  workflow_dispatch:  # Allows manual triggering

jobs:
  sync-submodule:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        submodules: "recursive"
        token: ${{ secrets.PUBLIC_REPO_SYNC_TOKEN }}

    - name: Configure Git
      run: |
        git config --global user.name "github-actions[bot]"
        git config --global user.email "github-actions[bot]@users.noreply.github.com"

    - name: Push changes to subtree remotes
      run: |
        COMMIT_MSG="Sync from parent repo

        Parent commit: ${{ github.event.head_commit.message }}
        SHA: ${{ github.sha }}
        Author: ${{ github.event.head_commit.author.name }}
        Workflow: ${{ github.workflow }}
        "

        git submodule foreach '
          git add . &&
          git diff --staged --quiet || (
            git commit -m "$COMMIT_MSG" &&
            git push
          )'
      env:
        GITHUB_TOKEN: ${{ secrets.PUBLIC_REPO_SYNC_TOKEN }}

    - name: Handle errors
      if: failure()
      run: |
        echo "::error::Submodule sync failed. Manual intervention may be required."