name: CI - Build Check

on:
  pull_request:
    branches: [main]
    types: [opened, synchronize, reopened]

permissions:
  contents: read
  pull-requests: write

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

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Type check
        run: npm run astro check

      - name: Build site
        run: npm run build

      - name: Comment PR on success
        uses: actions/github-script@v7
        if: success()
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '✅ Build exitoso. El sitio compila correctamente. Listo para revisión.'
            })

      - name: Comment PR on failure
        uses: actions/github-script@v7
        if: failure()
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '❌ Build fallido. Revisar los errores antes de mergear.'
            })