middleware.ts

// Next.js middleware for Supabase session refresh and auth-based route protection.
// Unauthenticated users are redirected to /auth/login; API and auth routes are exempt.
// Pattern referenced from Supabase SSR docs (@supabase/ssr) and Next.js docs (middleware).
// AI was used to speed up translating those docs into this boilerplate.
// npm install @supabase/ssr


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) {
          cookiesToSet.forEach(({ name, value }) => request.cookies.set(name, value))
          supabaseResponse = NextResponse.next({ request })
          cookiesToSet.forEach(({ name, value, options }) =>
            supabaseResponse.cookies.set(name, value, options)
          )
        },
      },
    }
  )

  const { data: { user } } = await supabase.auth.getUser()

  const isApiRoute     = request.nextUrl.pathname.startsWith('/api')
  const isAuthRoute    = request.nextUrl.pathname.startsWith('/auth')
  const isLandingRoute = request.nextUrl.pathname === '/'

  if (!user && !isApiRoute && !isAuthRoute && !isLandingRoute) {
    const url = request.nextUrl.clone()
    url.pathname = '/auth/login'
    return NextResponse.redirect(url)
  }

  return supabaseResponse
}

export const config = {
  matcher: [
    '/((?!_next/static|_next/image|favicon\\.ico|.*\\.(?:svg|png|jpg|jpeg|gif|webp)$).*)',
  ],
}

// import { NextResponse, type NextRequest } from 'next/server'

// export async function middleware(request: NextRequest) {
//   return NextResponse.next({ request })
// }

// export const config = {
//   matcher: [
//     '/((?!_next/static|_next/image|favicon\\.ico|.*\\.(?:svg|png|jpg|jpeg|gif|webp)$).*)',
//   ],
// }