export interface NotificationPreferences {
  channels: ChannelPreferences;
  categories: CategoryPreferences;
  schedule: SchedulePreferences;
  delivery: DeliveryPreferences;
}

export interface ChannelPreferences {
  toast: ChannelPreference;
  bell: ChannelPreference;
  push: ChannelPreference;
  email: ChannelPreference;
}

export interface ChannelPreference {
  enabled: boolean;
  types?: NotificationTypePreference[];
  sound?: boolean;
  vibrate?: boolean;
  priority?: 'all' | 'high' | 'none';
}

export interface NotificationTypePreference {
  type: string;
  enabled: boolean;
  channels?: string[];
}

export interface CategoryPreferences {
  [category: string]: {
    enabled: boolean;
    channels: string[];
    priority?: 'high' | 'normal' | 'low';
  };
}

export interface SchedulePreferences {
  timezone?: string;
  quietHours?: {
    enabled: boolean;
    start: string;
    end: string;
    allowUrgent?: boolean;
  };
  workingHours?: {
    enabled: boolean;
    days: number[];
    start: string;
    end: string;
  };
}

export interface DeliveryPreferences {
  batching?: {
    enabled: boolean;
    window: number; // minutes
    maxSize: number;
  };
  frequency?: {
    maxPerHour?: number;
    maxPerDay?: number;
  };
  grouping?: {
    enabled: boolean;
    by: 'sender' | 'type' | 'category';
  };
}

export interface PreferenceUpdate {
  path: string;
  value: any;
  userId?: string;
}

export interface PreferenceTemplate {
  id: string;
  name: string;
  description?: string;
  preferences: NotificationPreferences;
  isDefault?: boolean;
}