import { CLListResponse, CLMetaData } from "@api/shared/dto";
import { ApiProperty } from "@nestjs/swagger";
import { Exclude, Expose } from "class-transformer";
import { CLParticipantDto } from "./participant.dto";

/**
 * Extended metadata specifically for participant list responses
 * Includes participant status counts in addition to standard pagination metadata
 */
@Exclude()
export class CLParticipantMetaData extends CLMetaData {
  @Expose()
  @ApiProperty({ description: "Total count of active participants", example: 50 })
  active_count!: number;

  @Expose()
  @ApiProperty({ description: "Total count of inactive participants", example: 30 })
  inactive_count!: number;

  @Expose()
  @ApiProperty({ description: "Total count of replaced participants", example: 20 })
  replaced_count!: number;
}

/**
 * Participant-specific list response
 * Uses extended metadata that includes participant status counts
 */
@Exclude()
export class CLParticipantListResponse extends CLListResponse<CLParticipantDto> {
  @ApiProperty({ description: "Array of participant data items", type: [CLParticipantDto] })
  declare data: CLParticipantDto[];

  @ApiProperty({ description: "Pagination metadata with participant counts", type: CLParticipantMetaData })
  declare meta: CLParticipantMetaData;

  constructor(
    data: CLParticipantDto[],
    page: number,
    limit: number,
    totalCount: number,
    activeCount: number,
    inactiveCount: number,
    replacedCount: number,
  ) {
    super(data, page, limit, totalCount);

    // Override meta with extended metadata
    this.meta = {
      page,
      limit,
      total_count: totalCount,
      total_pages: Math.ceil(totalCount / limit),
      has_next_page: page * limit < totalCount,
      has_previous_page: page > 1,
      active_count: activeCount,
      inactive_count: inactiveCount,
      replaced_count: replacedCount,
    };
  }
}

// Re-export with both names for backward compatibility during migration
export { CLParticipantListResponse as ParticipantListResponse, CLParticipantMetaData as ParticipantMetaData };