import AsyncStorage from "@react-native-async-storage/async-storage";
import { create } from "zustand";
import { createJSONStorage, persist } from "zustand/middleware";
import { seedEmergencyContacts } from "@/lib/data/seed";

export type EmergencyContact = {
  id: string;
  name: string;
  phone: string;
  relationship: string;
};

type EcState = {
  contacts: EmergencyContact[];
  graceMinutesDefault: number;
  escalationEnabled: boolean;
  lastEscalationAt?: string;
  add: (c: Omit<EmergencyContact, "id">) => void;
  remove: (id: string) => void;
  setGrace: (m: number) => void;
  setEscalationEnabled: (v: boolean) => void;
  markEscalated: () => void;
};

export const useEmergencyContactStore = create<EcState>()(
  persist(
    (set, get) => ({
      contacts: seedEmergencyContacts,
      graceMinutesDefault: 30,
      escalationEnabled: true,
      add: (c) =>
        set({
          contacts: [{ ...c, id: `ec_${Date.now()}` }, ...get().contacts],
        }),
      remove: (id) =>
        set({ contacts: get().contacts.filter((c) => c.id !== id) }),
      setGrace: (m) => set({ graceMinutesDefault: m }),
      setEscalationEnabled: (v) => set({ escalationEnabled: v }),
      markEscalated: () =>
        set({ lastEscalationAt: new Date().toISOString() }),
    }),
    {
      name: "gishen-emergency",
      storage: createJSONStorage(() => AsyncStorage),
      version: 2,
      migrate: (persisted: unknown) => {
        const state = (persisted ?? {}) as Partial<EcState>;
        return !state.contacts?.length
          ? { ...state, contacts: seedEmergencyContacts }
          : state;
      },
    }
  )
);