name: Deploy Docs

on:
  push:
    branches: [main]
    paths:
      - "docs/**"
      - ".gitea/workflows/docs.yml"

jobs:
  build-and-deploy:
    runs-on: docs
    steps:
      - name: Checkout
        run: |
          REPO_URL="http://gitea:3000/kindred/create.git"
          if [ -d .git ]; then
            git fetch "$REPO_URL" main
            git checkout -f FETCH_HEAD
          else
            git clone --depth 1 --branch main "$REPO_URL" .
          fi

      - name: Install mdBook
        run: |
          if ! command -v mdbook &>/dev/null; then
            MDBOOK_VERSION="v0.5.2"
            wget -q -O mdbook.tar.gz "https://github.com/rust-lang/mdBook/releases/download/${MDBOOK_VERSION}/mdbook-${MDBOOK_VERSION}-x86_64-unknown-linux-musl.tar.gz"
            tar -xzf mdbook.tar.gz -C /usr/local/bin
            rm mdbook.tar.gz
          fi

      - name: Build mdBook
        run: mdbook build docs/

      - name: Deploy
        run: |
          rm -rf /opt/git/docs/book/*
          cp -r docs/book/* /opt/git/docs/book/