name: Deploy to GitHub Pages

on:
  push:
    branches:
      - main
  workflow_dispatch:

permissions:
  contents: read
  pages: write
  id-token: write

concurrency:
  group: pages-deploy
  cancel-in-progress: false

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

      - uses: actions/setup-node@v4
        with:
          node-version: '24'
          # TODO: add `cache: 'npm'` once package-lock.json is committed.

      - name: Install dependencies
        # TODO: switch to `npm ci` once package-lock.json is committed.
        run: npm install --no-audit --no-fund

      - name: Build
        run: npm run build
        env:
          SITE_URL: https://tiennm99.github.io
          SITE_BASE: /mathmax

      - name: Upload Pages artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: ./build

  deploy:
    needs: build
    runs-on: ubuntu-latest
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4