import { create } from 'zustand'
import { persist } from 'zustand/middleware'

export interface User {
  id: string
  email: string
  display_name?: string
  is_verified: boolean
}

export interface AuthState {
  user: User | null
  accessToken: string | null
  refreshToken: string | null
  isAuthenticated: boolean

  // Actions
  setAuth: (user: User, accessToken: string, refreshToken: string) => void
  updateUser: (user: Partial<User>) => void
  clearAuth: () => void
}

export const useAuthStore = create<AuthState>()(
  persist(
    (set) => ({
      user: null,
      accessToken: null,
      refreshToken: null,
      isAuthenticated: false,

      setAuth: (user, accessToken, refreshToken) => {
        // Store tokens in localStorage for API client
        if (typeof window !== 'undefined') {
          localStorage.setItem('access_token', accessToken)
          localStorage.setItem('refresh_token', refreshToken)
        }

        set({
          user,
          accessToken,
          refreshToken,
          isAuthenticated: true,
        })
      },

      updateUser: (updates) => {
        set((state) => ({
          user: state.user ? { ...state.user, ...updates } : null,
        }))
      },

      clearAuth: () => {
        // Clear tokens from localStorage
        if (typeof window !== 'undefined') {
          localStorage.removeItem('access_token')
          localStorage.removeItem('refresh_token')
        }

        set({
          user: null,
          accessToken: null,
          refreshToken: null,
          isAuthenticated: false,
        })
      },
    }),
    {
      name: 'auth-storage',
      partialize: (state) => ({
        user: state.user,
        // Don't persist tokens in zustand, only in localStorage
      }),
    }
  )
)