name: Sync docs mirror and landing submodule

on:
  push:
    branches: [master]
    paths: ['docs/**', '.github/workflows/sync-landing-submodule.yml']
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: sync-landing-docs-main
  cancel-in-progress: false

jobs:
  sync:
    if: github.repository == 'langbot-app/LangBot' && github.ref == 'refs/heads/master' && vars.DOCS_MIRROR_ENABLED == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 20
    steps:
      - uses: actions/checkout@v7
        with:
          ref: master
          fetch-depth: 0
          persist-credentials: false
      - name: Test synchronization contracts
        working-directory: docs
        run: python3 -m unittest discover -s tests -p test_sync_landing_submodule.py -v
      - name: Publish docs subtree (fast-forward only)
        env:
          GH_TOKEN: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN || secrets.RELEASE_UPLOAD_GITHUB_TOKEN }}
        run: |
          gh auth setup-git
          git remote add docs-mirror https://github.com/langbot-app/langbot-docs.git
          git fetch docs-mirror main
          docs_sha=$(git subtree split --prefix=docs)
          git merge-base --is-ancestor docs-mirror/main "$docs_sha"
          git push docs-mirror "$docs_sha:refs/heads/main"
      - name: Update landing submodule and production fork
        working-directory: docs
        env:
          GH_TOKEN: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN || secrets.RELEASE_UPLOAD_GITHUB_TOKEN }}
        run: python3 scripts/sync-landing-submodule.py