import type { IAuditActionService } from "../actions/IAuditActionService";
import type { BookingAuditAction } from "../repository/IBookingAuditRepository";

import { CreatedAuditActionService, type CreatedAuditData } from "../actions/CreatedAuditActionService";
import { CancelledAuditActionService, type CancelledAuditData } from "../actions/CancelledAuditActionService";
import {
  RescheduledAuditActionService,
  type RescheduledAuditData,
} from "../actions/RescheduledAuditActionService";
import { AcceptedAuditActionService, type AcceptedAuditData } from "../actions/AcceptedAuditActionService";
import {
  RescheduleRequestedAuditActionService,
  type RescheduleRequestedAuditData,
} from "../actions/RescheduleRequestedAuditActionService";
import {
  AttendeeAddedAuditActionService,
  type AttendeeAddedAuditData,
} from "../actions/AttendeeAddedAuditActionService";
import {
  NoShowUpdatedAuditActionService,
  type NoShowUpdatedAuditData,
} from "../actions/NoShowUpdatedAuditActionService";
import { RejectedAuditActionService, type RejectedAuditData } from "../actions/RejectedAuditActionService";
import {
  AttendeeRemovedAuditActionService,
  type AttendeeRemovedAuditData,
} from "../actions/AttendeeRemovedAuditActionService";
import {
  ReassignmentAuditActionService,
  type ReassignmentAuditData,
} from "../actions/ReassignmentAuditActionService";
import {
  LocationChangedAuditActionService,
  type LocationChangedAuditData,
} from "../actions/LocationChangedAuditActionService";
import {
  SeatBookedAuditActionService,
  type SeatBookedAuditData,
} from "../actions/SeatBookedAuditActionService";
import {
  SeatRescheduledAuditActionService,
  type SeatRescheduledAuditData,
} from "../actions/SeatRescheduledAuditActionService";

/**
 * Union type for all audit action data types
 * Used for type-safe handling of action-specific data
 */
export type AuditActionData =
  | CreatedAuditData
  | CancelledAuditData
  | RescheduledAuditData
  | AcceptedAuditData
  | RescheduleRequestedAuditData
  | AttendeeAddedAuditData
  | NoShowUpdatedAuditData
  | RejectedAuditData
  | AttendeeRemovedAuditData
  | ReassignmentAuditData
  | LocationChangedAuditData
  | SeatBookedAuditData
  | SeatRescheduledAuditData;

/**
 * BookingAuditActionServiceRegistry
 *
 * Centralized registry for all booking audit action services.
 * Provides a single source of truth for action service mapping and eliminates
 * code duplication between consumer and viewer services.
 */
export class BookingAuditActionServiceRegistry {
  private readonly actionServices: Map<BookingAuditAction, IAuditActionService>;

  constructor() {
    const services: Array<[BookingAuditAction, IAuditActionService]> = [
      ["CREATED", new CreatedAuditActionService()],
      ["CANCELLED", new CancelledAuditActionService()],
      ["RESCHEDULED", new RescheduledAuditActionService()],
      ["ACCEPTED", new AcceptedAuditActionService()],
      ["RESCHEDULE_REQUESTED", new RescheduleRequestedAuditActionService()],
      ["ATTENDEE_ADDED", new AttendeeAddedAuditActionService()],
      ["NO_SHOW_UPDATED", new NoShowUpdatedAuditActionService()],
      ["REJECTED", new RejectedAuditActionService()],
      ["ATTENDEE_REMOVED", new AttendeeRemovedAuditActionService()],
      ["REASSIGNMENT", new ReassignmentAuditActionService()],
      ["LOCATION_CHANGED", new LocationChangedAuditActionService()],
      ["SEAT_BOOKED", new SeatBookedAuditActionService()],
      ["SEAT_RESCHEDULED", new SeatRescheduledAuditActionService()],
    ];
    this.actionServices = new Map(services);
  }

  /**
   * Get Action Service - Returns the appropriate action service for the given action type
   *
   * @param action - The booking audit action type
   * @returns The corresponding action service instance with proper typing
   * @throws Error if no service is found for the action
   */
  getActionService(action: BookingAuditAction): IAuditActionService {
    const service = this.actionServices.get(action);
    if (!service) {
      throw new Error(`No action service found for: ${action}`);
    }
    return service;
  }
}