export interface Family {
  id: string;
  name: string;
  unitNumber: string; // Internal apartment number
  contactEmail?: string;
  balance: number; // Calculated balance (positive = credit, negative = debt)
}

export interface Payment {
  id: string;
  familyId: string;
  amount: number;
  datePaid: string; // ISO Date string
  forMonth: number; // 1-12
  forYear: number;
  notes?: string;
}

export interface SmtpConfig {
  host: string;
  port: number;
  user: string;
  pass: string;
  secure: boolean;
  fromEmail: string;
}

export interface AlertDefinition {
  id: string;
  subject: string;
  body: string;
  daysOffset: number; // Number of days
  offsetType: 'before_next_month' | 'after_current_month';
  sendHour: number; // 0-23
  active: boolean;
  lastSent?: string; // ISO Date of last execution
}

export interface AppSettings {
  defaultMonthlyQuota: number;
  condoName: string;
  currentYear: number; // The active fiscal year
  smtpConfig?: SmtpConfig;
}

export enum PaymentStatus {
  PAID = 'PAID',
  UNPAID = 'UNPAID', // Past due
  UPCOMING = 'UPCOMING', // Future
  PENDING = 'PENDING'
}

export interface MonthStatus {
  monthIndex: number; // 0-11
  status: PaymentStatus;
  payment?: Payment;
}

export interface User {
  id: string;
  email: string;
  name?: string;
  role?: 'admin' | 'poweruser' | 'user';
  phone?: string;
  familyId?: string | null;
  receiveAlerts?: boolean;
}

export interface AuthResponse {
  token: string;
  user: User;
}