name: Build and Deploy Documentation

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

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

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install pnpm
        uses: pnpm/action-setup@v4
        with:
          version: 9

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Build
        run: pnpm build

      - name: Publish to Pages
        if: gitea.event_name == 'push' && gitea.ref == 'refs/heads/main'
        shell: bash
        run: |
          set -euo pipefail
          ORG_REPO='${{ gitea.repository }}'
          case "$ORG_REPO" in
            */*) ;;
            *) echo "invalid repository slug: $ORG_REPO" >&2; exit 1 ;;
          esac
          case "$ORG_REPO" in
            *..*|/*|*/|*//* ) echo "unsafe repository slug: $ORG_REPO" >&2; exit 1 ;;
          esac
          test -f build/index.html
          pages_root="/pages"
          if ! mountpoint -q "$pages_root"; then
            echo "$pages_root is not a persistent host mount inside the Gitea Actions job container" >&2
            exit 1
          fi
          destination="$pages_root/$ORG_REPO"
          rm -rf -- "$destination"
          mkdir -p "$destination"
          cp -a build/. "$destination/"