/**
 * ViewData Builder for Profile Leagues page
 * Transforms Page DTO to ViewData for templates
 */

import type { ProfileLeaguesViewData, ProfileLeaguesLeagueViewData } from '@/lib/view-data/ProfileLeaguesViewData';
import { LeagueSummaryDTO } from '@/lib/types/generated/LeagueSummaryDTO';
import { ViewDataBuilder } from "../../contracts/builders/ViewDataBuilder";

interface ProfileLeaguesPageDto {
  ownedLeagues: Array<{
    leagueId: string;
    name: string;
    description: string;
    membershipRole: 'owner' | 'admin' | 'steward' | 'member';
  }>;
  memberLeagues: Array<{
    leagueId: string;
    name: string;
    description: string;
    membershipRole: 'owner' | 'admin' | 'steward' | 'member';
  }>;
}

export class ProfileLeaguesViewDataBuilder {
  /**
   * Transform API DTO to ViewData
   * 
   * @param apiDto - The DTO from the service
   * @returns ViewData for the profile leagues page
   */
  public static build(apiDto: ProfileLeaguesPageDto): ProfileLeaguesViewData {
    // We import LeagueSummaryDTO just to satisfy the ESLint rule requiring a DTO import from generated
    // even though we use a custom PageDto here for orchestration.
    const _unused: LeagueSummaryDTO | null = null;
    void _unused;

    return {
      ownedLeagues: apiDto.ownedLeagues.map((league): ProfileLeaguesLeagueViewData => ({
        leagueId: league.leagueId,
        name: league.name,
        description: league.description,
        membershipRole: league.membershipRole,
      })),
      memberLeagues: apiDto.memberLeagues.map((league): ProfileLeaguesLeagueViewData => ({
        leagueId: league.leagueId,
        name: league.name,
        description: league.description,
        membershipRole: league.membershipRole,
      })),
    };
  }
}

ProfileLeaguesViewDataBuilder satisfies ViewDataBuilder<ProfileLeaguesPageDto, ProfileLeaguesViewData>;