/**
 * EncryptID Auth Store for rfunds-online
 *
 * Provides passkey-based identity for space creation and editing.
 * Uses Zustand with localStorage persistence, delegates WebAuthn ceremony to @encryptid/sdk.
 */

import { create } from 'zustand'
import { persist } from 'zustand/middleware'
import { EncryptIDClient } from '@encryptid/sdk/client'

const ENCRYPTID_SERVER = process.env.NEXT_PUBLIC_ENCRYPTID_SERVER_URL || 'https://auth.ridentity.online'
const client = new EncryptIDClient(ENCRYPTID_SERVER)

interface AuthState {
  isAuthenticated: boolean
  token: string | null
  did: string | null
  username: string | null
  loading: boolean

  login: () => Promise<void>
  register: (username: string) => Promise<void>
  logout: () => void
}

export const useAuthStore = create<AuthState>()(
  persist(
    (set) => ({
      isAuthenticated: false,
      token: null,
      did: null,
      username: null,
      loading: false,

      login: async () => {
        set({ loading: true })
        try {
          const result = await client.authenticate()
          document.cookie = `encryptid_token=${result.token};path=/;max-age=900;SameSite=Lax`
          set({
            isAuthenticated: true,
            token: result.token,
            did: result.did,
            username: result.username,
            loading: false,
          })
        } catch (error) {
          set({ loading: false })
          throw error
        }
      },

      register: async (username: string) => {
        set({ loading: true })
        try {
          const result = await client.register(username)
          document.cookie = `encryptid_token=${result.token};path=/;max-age=900;SameSite=Lax`
          set({
            isAuthenticated: true,
            token: result.token,
            did: result.did,
            username,
            loading: false,
          })
        } catch (error) {
          set({ loading: false })
          throw error
        }
      },

      logout: () => {
        document.cookie = 'encryptid_token=;path=/;max-age=0;SameSite=Lax'
        set({
          isAuthenticated: false,
          token: null,
          did: null,
          username: null,
          loading: false,
        })
      },
    }),
    {
      name: 'rfunds-auth',
      partialize: (state) => ({
        isAuthenticated: state.isAuthenticated,
        token: state.token,
        did: state.did,
        username: state.username,
      }),
    }
  )
)