'use client';
import { create } from 'zustand';
import type { Department, Member, RoleItem, PasswordRule } from '@/lib/members';
import { DEFAULT_PASSWORD_RULE, generatePassword } from '@/lib/members';

const STORAGE_KEY = 'ftb_members_v1';

const PRESET_DEPARTMENTS: Department[] = [
  { id: 'dept-1', name: '产品部', order: 1, createdAt: '2024-01-01' },
  { id: 'dept-2', name: '技术部', order: 2, createdAt: '2024-01-01' },
  { id: 'dept-2-1', name: '前端组', parentId: 'dept-2', order: 1, createdAt: '2024-01-01' },
  { id: 'dept-2-2', name: '后端组', parentId: 'dept-2', order: 2, createdAt: '2024-01-01' },
  { id: 'dept-2-3', name: '测试组', parentId: 'dept-2', order: 3, createdAt: '2024-01-01' },
  { id: 'dept-3', name: '设计部', order: 3, createdAt: '2024-01-01' },
  { id: 'dept-4', name: '运营部', order: 4, createdAt: '2024-01-01' },
];

const PRESET_ROLES: RoleItem[] = [
  { id: 'role-admin', name: '超级管理员', description: '拥有系统全部权限', createdAt: '2024-01-01', isSystem: true },
  { id: 'role-pm', name: '产品经理', description: '管理产品和需求', createdAt: '2024-01-01' },
  { id: 'role-dev', name: '开发工程师', description: '负责开发任务', createdAt: '2024-01-01' },
  { id: 'role-test', name: '测试工程师', description: '负责测试任务', createdAt: '2024-01-01' },
  { id: 'role-design', name: '设计师', description: '负责UI/UX设计', createdAt: '2024-01-01' },
];

const MOCK_MEMBERS: Member[] = [
  { id: 'm-1', name: '张三', departmentId: 'dept-1', roleId: 'role-pm', phone: '13800138001', email: 'zhangsan@company.com', password: 'Ftb@2024', createdAt: '2024-01-10' },
  { id: 'm-2', name: '李四', departmentId: 'dept-2-1', roleId: 'role-dev', phone: '13900139002', email: 'lisi@company.com', password: 'Ftb@2024', createdAt: '2024-01-12' },
  { id: 'm-3', name: '王五', departmentId: 'dept-2-2', roleId: 'role-dev', phone: '13700137003', email: 'wangwu@company.com', password: 'Ftb@2024', createdAt: '2024-01-15' },
  { id: 'm-4', name: '赵六', departmentId: 'dept-2-3', roleId: 'role-test', phone: '13600136004', email: 'zhaoliu@company.com', password: 'Ftb@2024', createdAt: '2024-02-01' },
  { id: 'm-5', name: '孙七', departmentId: 'dept-3', roleId: 'role-design', phone: '13500135005', email: 'sunqi@company.com', password: 'Ftb@2024', createdAt: '2024-02-10' },
  { id: 'm-6', name: '周八', departmentId: 'dept-4', roleId: 'role-pm', phone: '13400134006', email: 'zhouba@company.com', password: 'Ftb@2024', createdAt: '2024-02-15' },
  { id: 'm-7', name: '吴九', departmentId: 'dept-2-1', roleId: 'role-dev', phone: '13300133007', email: 'wujiu@company.com', password: 'Ftb@2024', createdAt: '2024-03-01' },
  { id: 'm-8', name: '陈十', departmentId: 'dept-1', roleId: 'role-admin', phone: '13200132008', email: 'chenshi@company.com', password: 'Ftb@2024', createdAt: '2024-01-01' },
];

interface MemberState {
  departments: Department[];
  members: Member[];
  roles: RoleItem[];
  passwordRule: PasswordRule;
  loading: boolean;
  fetchMembers: () => void;
  updatePasswordRule: (rule: PasswordRule) => void;
  createDepartment: (data: Omit<Department, 'id' | 'createdAt'>) => void;
  updateDepartment: (id: string, data: Partial<Department>) => void;
  deleteDepartment: (id: string) => void;
  createMember: (data: Omit<Member, 'id' | 'createdAt'>) => void;
  updateMember: (id: string, data: Partial<Member>) => void;
  deleteMember: (id: string) => void;
  createRole: (data: Omit<RoleItem, 'id' | 'createdAt'>) => void;
  updateRole: (id: string, data: Partial<RoleItem>) => void;
  deleteRole: (id: string) => void;
}

function saveLocal(state: { departments: Department[]; members: Member[]; roles: RoleItem[]; passwordRule: PasswordRule }) {
  try { localStorage.setItem(STORAGE_KEY, JSON.stringify(state)); } catch {}
}

function loadLocal(): { departments: Department[]; members: Member[]; roles: RoleItem[]; passwordRule: PasswordRule } | null {
  try {
    const raw = localStorage.getItem(STORAGE_KEY);
    if (raw) return JSON.parse(raw);
  } catch {}
  return null;
}

export const useMemberStore = create<MemberState>((set, get) => ({
  departments: PRESET_DEPARTMENTS,
  members: MOCK_MEMBERS,
  roles: PRESET_ROLES,
  passwordRule: DEFAULT_PASSWORD_RULE,
  loading: false,

  fetchMembers: () => {
    const cached = loadLocal();
    if (cached) set({ departments: cached.departments, members: cached.members, roles: cached.roles, passwordRule: cached.passwordRule || DEFAULT_PASSWORD_RULE });
  },

  updatePasswordRule: (rule) => {
    set({ passwordRule: rule });
    saveLocal({ departments: get().departments, members: get().members, roles: get().roles, passwordRule: rule });
  },

  createDepartment: (data) => {
    const dept: Department = { ...data, id: `dept-${Date.now()}`, createdAt: new Date().toISOString().slice(0, 10) };
    const departments = [...get().departments, dept];
    set({ departments });
    saveLocal({ departments, members: get().members, roles: get().roles, passwordRule: get().passwordRule });
  },
  updateDepartment: (id, data) => {
    const departments = get().departments.map((d) => d.id === id ? { ...d, ...data } : d);
    set({ departments });
    saveLocal({ departments, members: get().members, roles: get().roles, passwordRule: get().passwordRule });
  },
  deleteDepartment: (id) => {
    const departments = get().departments.filter((d) => d.id !== id && d.parentId !== id);
    set({ departments });
    saveLocal({ departments, members: get().members, roles: get().roles, passwordRule: get().passwordRule });
  },

  createMember: (data) => {
    const member: Member = { ...data, id: `m-${Date.now()}`, createdAt: new Date().toISOString().slice(0, 10) };
    const members = [...get().members, member];
    set({ members });
    saveLocal({ departments: get().departments, members, roles: get().roles, passwordRule: get().passwordRule });
  },
  updateMember: (id, data) => {
    const members = get().members.map((m) => m.id === id ? { ...m, ...data } : m);
    set({ members });
    saveLocal({ departments: get().departments, members, roles: get().roles, passwordRule: get().passwordRule });
  },
  deleteMember: (id) => {
    const members = get().members.filter((m) => m.id !== id);
    set({ members });
    saveLocal({ departments: get().departments, members, roles: get().roles, passwordRule: get().passwordRule });
  },

  createRole: (data) => {
    const role: RoleItem = { ...data, id: `role-${Date.now()}`, createdAt: new Date().toISOString().slice(0, 10) };
    const roles = [...get().roles, role];
    set({ roles });
    saveLocal({ departments: get().departments, members: get().members, roles, passwordRule: get().passwordRule });
  },
  updateRole: (id, data) => {
    const roles = get().roles.map((r) => r.id === id ? { ...r, ...data } : r);
    set({ roles });
    saveLocal({ departments: get().departments, members: get().members, roles, passwordRule: get().passwordRule });
  },
  deleteRole: (id) => {
    const roles = get().roles.filter((r) => r.id !== id);
    set({ roles });
    saveLocal({ departments: get().departments, members: get().members, roles, passwordRule: get().passwordRule });
  },
}));