// Calendar type definitions

export type ViewType = 'day' | 'week' | 'month';
export type CalendarView = ViewType; // Alias for compatibility

export type CalendarType = 'date' | 'resource';

export type EventType = 'meeting' | 'meal' | 'work' | 'milestone';

export type SyncStatus = 'synced' | 'pending' | 'error';

export interface Resource {
  name: string;
  displayName: string;
  avatarUrl: string;
  employeeId: string;
  events: CalendarEvent[];
}

export interface ResourceCalendarData {
  date: string;
  resources: Resource[];
}

export interface CalendarEvent {
  id: string;
  title: string;
  start: string; // ISO 8601
  end: string;   // ISO 8601
  type: EventType;
  allDay: boolean;
  syncStatus: SyncStatus;
  // Resource information (only present in resource calendar mode)
  resourceName?: string;
  resourceDisplayName?: string;
  resourceEmployeeId?: string;
  recurringId?: string;
  resources?: string[];
  metadata?: Record<string, any>;
}

export interface CalendarConfig {
  // View settings
  view: ViewType;
  weekDays: number;            // 4-7 days for week view
  firstDayOfWeek: number;      // 0 = Sunday, 1 = Monday
  
  // Time settings
  dayStartHour: number;        // Calendar starts at hour
  dayEndHour: number;          // Calendar ends at hour
  workStartHour: number;       // Work hours start
  workEndHour: number;         // Work hours end
  snapInterval: number;        // Minutes: 5, 10, 15, 30, 60
  
  // Display settings
  hourHeight: number;          // Pixels per hour
  showCurrentTime: boolean;
  showWorkHours: boolean;
  fitToWidth: boolean;         // Fit columns to calendar width vs horizontal scroll
  
  // Scrollbar styling
  scrollbarWidth: number;      // Width of scrollbar in pixels
  scrollbarColor: string;      // Scrollbar thumb color
  scrollbarTrackColor: string; // Scrollbar track color
  scrollbarHoverColor: string; // Scrollbar thumb hover color
  scrollbarBorderRadius: number; // Border radius for scrollbar thumb
  
  // Interaction settings
  allowDrag: boolean;
  allowResize: boolean;
  allowCreate: boolean;
  
  // API settings
  apiEndpoint: string;
  dateFormat: string;
  timeFormat: string;
  
  // Feature flags
  enableSearch: boolean;
  enableTouch: boolean;
  
  // Event defaults
  defaultEventDuration: number; // Minutes
  minEventDuration: number;     // Minutes
  maxEventDuration: number;     // Minutes
}

export interface EventLogEntry {
  type: string;
  detail: any;
  timestamp: number;
}

export interface ListenerEntry {
  eventType: string;
  handler: EventListener;
  options?: AddEventListenerOptions;
}

export interface IEventBus {
  on(eventType: string, handler: EventListener, options?: AddEventListenerOptions): () => void;
  once(eventType: string, handler: EventListener): () => void;
  off(eventType: string, handler: EventListener): void;
  emit(eventType: string, detail?: any): boolean;
  getEventLog(eventType?: string): EventLogEntry[];
  setDebug(enabled: boolean): void;
  destroy(): void;
}

export interface GridPosition {
  minutes: number;
  time: string;
  y: number;
}

export interface Period {
  start: string;
  end: string;
  view: ViewType;
}

export interface EventData {
  events: CalendarEvent[];
  meta: {
    start: string;
    end: string;
    view: ViewType;
    total: number;
  };
}