// packages/api-client/src/supabase-browser.ts
// 브라우저 컴포넌트용 Supabase 클라이언트 (캐싱 싱글턴).
// Database 제네릭 주입 (@supabase/ssr 0.10 + supabase-js 2.103 정합).

import { createBrowserClient } from '@supabase/ssr'
import type { Database } from './types'
import { requireSupabasePublicConfig } from './client'

let cachedClient: ReturnType<typeof createBrowserClient<Database>> | null = null

export function getSupabaseBrowserClient(): ReturnType<typeof createBrowserClient<Database>> {
  if (cachedClient) return cachedClient

  const { url, anonKey } = requireSupabasePublicConfig({
    url: process.env.NEXT_PUBLIC_SUPABASE_URL,
    anonKey: process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY,
  })

  cachedClient = createBrowserClient<Database>(url, anonKey)
  return cachedClient
}

export function isSupabaseConfigured(): boolean {
  return Boolean(
    process.env.NEXT_PUBLIC_SUPABASE_URL?.trim()
    && process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY?.trim(),
  )
}