import { createServerClient } from '@supabase/ssr'
import { NextResponse, type NextRequest } from 'next/server'

export async function middleware(request: NextRequest) {
  let supabaseResponse = NextResponse.next({
    request,
  })

  const supabase = createServerClient(
    process.env.NEXT_PUBLIC_SUPABASE_URL!,
    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
    {
      cookies: {
        getAll() {
          return request.cookies.getAll()
        },
        setAll(cookiesToSet: Array<{ name: string; value: string; options?: Record<string, unknown> }>) {
          cookiesToSet.forEach(({ name, value }) => request.cookies.set(name, value))
          supabaseResponse = NextResponse.next({
            request,
          })
          cookiesToSet.forEach(({ name, value, options }) =>
            supabaseResponse.cookies.set(name, value, options)
          )
        },
      },
    }
  )

  // Rafraîchir la session
  const { data: { user } } = await supabase.auth.getUser()

  // Si l'utilisateur est sur la page de login
  if (request.nextUrl.pathname === '/login') {
    if (user) {
      // Utilisateur connecté, rediriger vers le dashboard
      const redirectUrl = new URL('/', request.url)
      return NextResponse.redirect(redirectUrl)
    }
    // Utilisateur non connecté, autoriser l'accès à la page de login
    return supabaseResponse
  }

  // Pour toutes les autres pages, vérifier l'authentification
  if (!user) {
    // Utilisateur non connecté, rediriger vers login
    const redirectUrl = new URL('/login', request.url)
    return NextResponse.redirect(redirectUrl)
  }

  return supabaseResponse
}

export const config = {
  matcher: [
    /*
     * Match all request paths except for the ones starting with:
     * - _next/static (static files)
     * - _next/image (image optimization files)
     * - favicon.ico (favicon file)
     * - public folder
     */
    '/((?!_next/static|_next/image|favicon.ico|public|img).*)',
  ],
}