name: "Wiki Sync"

on:
  push:
    branches:
      - main

jobs:
  sync-wiki:
    name: "Синхронизация Wiki"
    runs-on: ubuntu-latest

    steps:
      - name: "Checkout main repository"
        uses: actions/checkout@v4

      - name: "Validate wiki source folder"
        run: |
          if [ ! -d "wiki" ]; then
            echo "Папка wiki/ не найдена — синхронизация не требуется."
            exit 0
          fi

      - name: "Sync wiki folder to Gitea Wiki repository"
        env:
          GIT_TOKEN: ${{ secrets.GIT_TOKEN }}
        run: |
          if [ -z "${GIT_TOKEN}" ]; then
            echo "GIT_TOKEN не задан. Добавьте секрет в Settings -> Secrets -> Actions."
            echo "Пропуск синхронизации wiki без ошибки."
            exit 0
          fi

          WIKI_REPO_URL="${{ github.server_url }}/${{ github.repository }}.wiki.git"
          AUTH_WIKI_REPO_URL="${WIKI_REPO_URL/https:\/\//https:\/\/oauth2:${GIT_TOKEN}@}"

          echo "Клонируем: ${WIKI_REPO_URL}"
          git clone --depth 1 "${AUTH_WIKI_REPO_URL}" .wiki-repo

          rsync -a --delete --exclude '.git/' wiki/ .wiki-repo/

          cd .wiki-repo
          git add -A

          if git diff --cached --quiet; then
            echo "Изменений в wiki нет — пуш не требуется."
            exit 0
          fi

          git config user.name "gitea-actions[bot]"
          git config user.email "gitea-actions@local"

          DEFAULT_BRANCH=$(git remote show origin | sed -n '/HEAD branch/s/.*: //p')
          if [ -z "${DEFAULT_BRANCH}" ]; then
            DEFAULT_BRANCH="master"
          fi

          git commit -m "docs(wiki): sync from main @ ${{ github.sha }}"
          git push origin "HEAD:${DEFAULT_BRANCH}"

          echo "Wiki синхронизирована в ветку ${DEFAULT_BRANCH}."