name: Sync Wiki

on:
  push:
    branches: [main]
    paths: [".wiki/**"]
  workflow_dispatch:

permissions:
  contents: write

jobs:
  sync:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Checkout wiki
        id: clone_wiki
        run: |
          if git clone "https://x-access-token:${{ github.token }}@github.com/${{ github.repository }}.wiki.git" .wiki-remote 2>&1; then
            echo "wiki_exists=true" >> "$GITHUB_OUTPUT"
          else
            echo "wiki_exists=false" >> "$GITHUB_OUTPUT"
            echo "Wiki not yet initialized — skipping sync. Initialize via GitHub web UI first."
          fi

      - name: Sync wiki pages
        if: steps.clone_wiki.outputs.wiki_exists == 'true'
        run: |
          cp .wiki/*.md .wiki-remote/
          cd .wiki-remote
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add -A
          if git diff --cached --quiet; then
            echo "No wiki changes to commit"
          else
            git commit -m "Sync wiki from repo"
            git push origin HEAD:master
          fi