import { MetadataRoute } from 'next'
import { prisma } from '@/lib/db'
import { siteConfig } from '@/lib/config'

export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
  const baseUrl = siteConfig.url

  // Pages statiques
  const staticPages: MetadataRoute.Sitemap = [
    {
      url: baseUrl,
      lastModified: new Date(),
      changeFrequency: 'daily',
      priority: 1,
    },
    {
      url: `${baseUrl}/articles`,
      lastModified: new Date(),
      changeFrequency: 'daily',
      priority: 0.9,
    },
    {
      url: `${baseUrl}/categories`,
      lastModified: new Date(),
      changeFrequency: 'weekly',
      priority: 0.8,
    },
    {
      url: `${baseUrl}/a-propos`,
      lastModified: new Date(),
      changeFrequency: 'monthly',
      priority: 0.5,
    },
  ]

  // Articles publiés
  const articles = await prisma.article.findMany({
    where: { status: 'published' },
    select: { slug: true, updatedAt: true },
  })

  const articlePages: MetadataRoute.Sitemap = articles.map((article) => ({
    url: `${baseUrl}/article/${article.slug}`,
    lastModified: article.updatedAt,
    changeFrequency: 'weekly' as const,
    priority: 0.8,
  }))

  // Catégories
  const categories = await prisma.category.findMany({
    select: { slug: true, updatedAt: true },
  })

  const categoryPages: MetadataRoute.Sitemap = categories.map((category) => ({
    url: `${baseUrl}/categorie/${category.slug}`,
    lastModified: category.updatedAt,
    changeFrequency: 'weekly' as const,
    priority: 0.7,
  }))

  return [...staticPages, ...articlePages, ...categoryPages]
}