// 用户相关类型
export interface User {
  id: string;
  email: string;
  full_name?: string;
  avatar_url?: string;
  user_type: 'individual' | 'enterprise';
  phone?: string;
  created_at: string;
  updated_at: string;
  is_active: boolean;
  last_login?: string;
}

// 企业用户扩展信息
export interface EnterpriseUser extends User {
  company_name: string;
  company_id: string;
  employee_count?: number;
  contract_type: 'monthly' | 'yearly' | 'custom';
  billing_address?: string;
  tax_id?: string;
}

// 账户余额
export interface AccountBalance {
  user_id: string;
  balance: number;
  currency: 'CNY' | 'USD';
  last_updated: string;
  frozen_amount?: number;
}

// 通话相关类型
export interface Call {
  id: string;
  caller_id: string;
  callee_id?: string;
  call_type: 'audio' | 'video';
  call_mode: 'ai_voice' | 'ai_video' | 'sign_language' | 'human_interpreter';
  status: 'pending' | 'active' | 'ended' | 'cancelled' | 'failed';
  start_time: string;
  end_time?: string;
  duration?: number; // 秒
  cost: number;
  currency: 'CNY' | 'USD';
  room_sid?: string;
  twilio_call_sid?: string;
  quality_rating?: number;
  created_at: string;
  updated_at: string;
}

// 通话统计
export interface CallStats {
  total_calls_today: number;
  active_calls: number;
  average_response_time: number; // 秒
  online_interpreters: number;
  total_revenue_today: number;
  currency: 'CNY' | 'USD';
}

// 翻译员信息
export interface Interpreter {
  id: string;
  user_id: string;
  name: string;
  avatar_url?: string;
  languages: string[];
  specializations: string[];
  hourly_rate: number;
  currency: 'CNY' | 'USD';
  rating: number;
  total_calls: number;
  status: 'online' | 'offline' | 'busy';
  is_certified: boolean;
  created_at: string;
  updated_at: string;
}

// 预约信息
export interface Appointment {
  id: string;
  user_id: string;
  interpreter_id?: string;
  call_type: 'audio' | 'video';
  call_mode: 'ai_voice' | 'ai_video' | 'sign_language' | 'human_interpreter';
  scheduled_time: string;
  duration_minutes: number;
  estimated_cost: number;
  currency: 'CNY' | 'USD';
  status: 'scheduled' | 'confirmed' | 'started' | 'completed' | 'cancelled';
  notes?: string;
  reminder_sent: boolean;
  created_at: string;
  updated_at: string;
}

// 文档翻译
export interface DocumentTranslation {
  id: string;
  user_id: string;
  original_filename: string;
  file_url: string;
  file_size: number;
  file_type: string;
  source_language: string;
  target_language: string;
  status: 'uploaded' | 'processing' | 'completed' | 'failed';
  translated_file_url?: string;
  cost: number;
  currency: 'CNY' | 'USD';
  progress_percentage: number;
  estimated_completion?: string;
  created_at: string;
  updated_at: string;
}

// 订单信息
export interface Order {
  id: string;
  user_id: string;
  order_type: 'call' | 'document' | 'subscription' | 'recharge';
  related_id?: string; // 关联的通话ID、文档ID等
  amount: number;
  currency: 'CNY' | 'USD';
  status: 'pending' | 'completed' | 'cancelled' | 'refunded';
  payment_method: 'stripe' | 'alipay' | 'wechat' | 'enterprise_billing';
  payment_intent_id?: string;
  invoice_url?: string;
  created_at: string;
  updated_at: string;
}

// 发票信息
export interface Invoice {
  id: string;
  user_id: string;
  order_id: string;
  invoice_number: string;
  amount: number;
  currency: 'CNY' | 'USD';
  tax_amount?: number;
  status: 'draft' | 'sent' | 'paid' | 'overdue' | 'cancelled';
  issued_date: string;
  due_date: string;
  paid_date?: string;
  download_url?: string;
  created_at: string;
  updated_at: string;
}

// 企业员工管理
export interface EnterpriseEmployee {
  id: string;
  enterprise_id: string;
  user_id: string;
  employee_id: string;
  name: string;
  email: string;
  department?: string;
  position?: string;
  call_limit_per_month?: number;
  is_active: boolean;
  created_at: string;
  updated_at: string;
}

// 费率规则
export interface PricingRule {
  id: string;
  name: string;
  service_type: 'audio_call' | 'video_call' | 'document_translation' | 'ai_service';
  call_mode?: 'ai_voice' | 'ai_video' | 'sign_language' | 'human_interpreter';
  base_rate: number;
  currency: 'CNY' | 'USD';
  billing_unit: 'minute' | 'word' | 'page' | 'session';
  minimum_charge: number;
  user_type: 'individual' | 'enterprise' | 'all';
  is_active: boolean;
  created_at: string;
  updated_at: string;
}

// 通知类型
export interface Notification {
  id: string;
  user_id: string;
  title: string;
  message: string;
  type: 'info' | 'warning' | 'error' | 'success';
  category: 'system' | 'billing' | 'call' | 'appointment' | 'document';
  is_read: boolean;
  action_url?: string;
  created_at: string;
}

// 系统设置
export interface SystemSettings {
  id: string;
  key: string;
  value: string;
  description?: string;
  category: 'general' | 'billing' | 'twilio' | 'stripe' | 'elevenlabs';
  is_public: boolean;
  updated_at: string;
}

// API 响应包装类型
export interface ApiResponse<T = any> {
  success: boolean;
  data?: T;
  error?: string;
  message?: string;
}

// 分页响应类型
export interface PaginatedResponse<T = any> {
  data: T[];
  total: number;
  page: number;
  limit: number;
  has_more: boolean;
}

// 表格列配置
export interface TableColumn<T = any> {
  key: keyof T;
  title: string;
  render?: (value: any, record: T) => any;
  sortable?: boolean;
  width?: string;
  align?: 'left' | 'center' | 'right';
}

// 表单字段类型
export interface FormField {
  name: string;
  label: string;
  type: 'text' | 'email' | 'password' | 'number' | 'select' | 'textarea' | 'file' | 'date' | 'time';
  required?: boolean;
  placeholder?: string;
  options?: Array<{ label: string; value: string | number }>;
  validation?: any;
}