name: CI

on:
  push:
  pull_request:
  workflow_dispatch:

jobs:
  test:
    name: Tests
    runs-on: ubuntu-22.04

    steps:
      - uses: actions/checkout@v4

      - name: Set up Python 3.10
        uses: actions/setup-python@v5
        with:
          python-version: '3.10'

      - name: Setup mdBook
        uses: peaceiris/actions-mdbook@v2
        with:
          mdbook-version: 'latest'

      - name: Run mdBook regression tests
        run: |
          python3 -m unittest discover -s tests -p 'test_prepare_mdbook.py'
          python3 -m unittest discover -s tests -p 'test_prepare_mdbook_zh.py'
          python3 -m unittest discover -s tests -p 'test_assemble_docs_publish_tree.py'
          python3 -m unittest discover -s tests -p 'test_ensure_book_resources.py'
          python3 -m unittest discover -s tests -p 'test_image_references.py'
          python3 -m unittest discover -s tests -p 'test_update_docs_workflow.py'

      - name: Build v2 (EN + ZH) with mdBook
        run: bash build_mdbook_v2.sh

      - name: Build v1 (EN + ZH) with mdBook
        run: bash build_mdbook_v1.sh

      - name: Verify build outputs
        run: |
          for d in .mdbook-v2/book .mdbook-v2-zh/book .mdbook-v1/book .mdbook-v1-zh/book; do
            if [ ! -f "$d/index.html" ]; then
              echo "ERROR: $d/index.html not found"
              exit 1
            fi
            echo "OK: $d/index.html exists"
          done