name: ci

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

permissions:
  contents: read

concurrency:
  group: ci-${{ github.ref }}
  cancel-in-progress: true

jobs:
  smoke:
    name: TeX pipeline smoke test
    runs-on: ubuntu-24.04
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v7

      - uses: actions/setup-node@v7
        with:
          node-version: '22'

      # macOS 上是 MacTeX，CI 里用 Ubuntu 的 TeX Live 验证同一条编译管线：
      # latex -> dvisvgm / dvipng / dvipdfmx+pdfcrop，以及 xelatex+ctex 的中文路径。
      - name: Install TeX Live
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends \
            texlive-latex-base \
            texlive-latex-recommended \
            texlive-latex-extra \
            texlive-fonts-recommended \
            texlive-xetex \
            texlive-lang-chinese \
            texlive-extra-utils \
            ghostscript \
            latexmk

      - name: Install SVG/PNG converters only if missing
        run: |
          missing=""
          for b in dvisvgm dvipng; do
            command -v "$b" >/dev/null 2>&1 || missing="$missing $b"
          done
          if [ -n "$missing" ]; then
            echo "not provided by texlive:$missing"
            sudo apt-get install -y --no-install-recommends $missing
          else
            echo "dvisvgm/dvipng came with texlive"
          fi

      - name: Show toolchain
        run: |
          node --version
          for b in latex pdflatex xelatex dvisvgm dvipng dvipdfmx pdfcrop pdftex; do
            printf '%-10s %s\n' "$b" "$(command -v "$b" || echo MISSING)"
          done

      - name: Smoke test
        run: node test/smoke.mjs

      # 环境检测 / HTTP 路由 / client 半的渲染分支，不需要真的装 TeX。
      - name: Env + routes test
        run: node test/env.mjs