name: Sync from upstream

on:
  schedule:
    - cron: '23 3 * * *'
  workflow_dispatch: {}

permissions:
  contents: write

concurrency:
  group: registry-sync
  cancel-in-progress: true

jobs:
  sync:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          ref: main
          fetch-depth: 0

      - name: Configure git identity
        run: |
          git config user.name "arka-ops"
          git config user.email "ops@arka-ai.ru"

      - name: Merge upstream main
        run: |
          set -euo pipefail
          git remote add upstream https://github.com/librefang/librefang-registry.git || true
          git fetch --depth=1 upstream main
          # Fast-forward when possible; otherwise record a merge commit so the
          # arka-specific files under .gitea/ (which upstream does not ship)
          # stay on top of upstream content.
          git checkout main
          if ! git merge --no-edit -m "chore: merge upstream registry main" upstream/main; then
            echo "registry sync merge conflict — resolve manually" >&2
            git merge --abort
            exit 1
          fi

      - name: Push to origin
        run: |
          set -euo pipefail
          git push origin main