name: Auto Sync Dev to Main

on:
  schedule:
    # sync every 2 weeks at midnight
    - cron:  '0 0 1,15 * *'
  workflow_dispatch: # Allow manual trigger

jobs:
  sync_branches:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout Repo
      uses: actions/checkout@v2
      with:
        ref: dev
        fetch-depth: 0

    - name: Configure Git
      run: |
        git config --global user.email "${{ secrets.GITHUBEMAILADDRESS }}"
        git config --global user.name "${{ secrets.GITHUBUSER }}"

    - name: Merge dev into main
      run: |
        git checkout main
        git merge dev --no-edit
        git push origin main

    - name: Handle merge conflicts
      run: |
        if git ls-files -u | grep -q . ; then
          echo "Merge conflict detected. Please resolve manually."
          exit 1
        fi