"use client";

import { create } from "zustand";
import { getService } from "./online/service";
import { AuthSession, UserProfile } from "./online/types";

interface SessionStore {
  session: AuthSession | null;
  profile: UserProfile | null;
  loading: boolean;
  isAuthed: boolean;

  init: () => Promise<void>;
  refreshProfile: () => Promise<void>;
  setProfile: (p: UserProfile) => void;

  requestOtp: (phone: string) => Promise<{ devCode?: string }>;
  verifyOtp: (phone: string, code: string) => Promise<void>;
  signInEmail: (email: string, password: string) => Promise<void>;
  signUpEmail: (email: string, password: string, name: string) => Promise<void>;
  signInGoogle: () => Promise<void>;
  signOut: () => Promise<void>;

  updateProfile: (
    patch: Partial<Pick<UserProfile, "displayName" | "avatar" | "avatarImage" | "title" | "cardFront" | "cardBack">>
  ) => Promise<void>;
  upgradePlan: () => Promise<void>;
}

export const useSessionStore = create<SessionStore>((set, get) => ({
  session: null,
  profile: null,
  loading: true,
  isAuthed: false,

  init: async () => {
    const svc = getService();
    const restored = await svc.restore();
    if (restored) {
      set({ session: restored.session, profile: restored.profile, isAuthed: true, loading: false });
    } else {
      // ensure a (guest) profile exists so the top bar can render
      const profile = await svc.getProfile();
      set({ profile, isAuthed: false, loading: false });
    }
  },

  refreshProfile: async () => {
    const profile = await getService().getProfile();
    set({ profile });
  },

  setProfile: (p) => set({ profile: p }),

  requestOtp: (phone) => getService().requestOtp(phone),

  verifyOtp: async (phone, code) => {
    const session = await getService().verifyOtp(phone, code);
    const profile = await getService().getProfile();
    set({ session, profile, isAuthed: true });
  },

  signInEmail: async (email, password) => {
    const session = await getService().signInEmail(email, password);
    const profile = await getService().getProfile();
    set({ session, profile, isAuthed: true });
  },

  signUpEmail: async (email, password, name) => {
    const session = await getService().signUpEmail(email, password, name);
    const profile = await getService().getProfile();
    set({ session, profile, isAuthed: true });
  },

  signInGoogle: async () => {
    const session = await getService().signInGoogle();
    const profile = await getService().getProfile();
    set({ session, profile, isAuthed: true });
  },

  signOut: async () => {
    await getService().signOut();
    set({ session: null, isAuthed: false });
  },

  updateProfile: async (patch) => {
    const profile = await getService().updateProfile(patch);
    set({ profile });
  },

  upgradePlan: async () => {
    const profile = await getService().upgradePlan();
    set({ profile });
  },
}));