/**
 * Team Rankings View Data Builder
 * 
 * Transforms API DTO to ViewData for templates.
 */

import type { GetTeamsLeaderboardOutputDTO } from '@/lib/types/generated/GetTeamsLeaderboardOutputDTO';
import type { TeamRankingsViewData } from '@/lib/view-data/TeamRankingsViewData';
import type { LeaderboardTeamItem } from '@/lib/view-data/LeaderboardTeamItem';

import { ViewDataBuilder } from "../../contracts/builders/ViewDataBuilder";

export class TeamRankingsViewDataBuilder {
  /**
   * Transform API DTO to ViewData
   * 
   * @param apiDto - The DTO from the service
   * @returns ViewData for the team rankings page
   */
  public static build(apiDto: GetTeamsLeaderboardOutputDTO): TeamRankingsViewData {
    const allTeams: LeaderboardTeamItem[] = (apiDto.teams || []).map((t, index) => ({
      id: t.id,
      name: t.name,
      tag: t.tag,
      memberCount: t.memberCount,
      category: (t as unknown as { specialization: string }).specialization, // Mapping specialization to category as per LeaderboardTeamItem
      totalWins: t.totalWins ?? 0,
      totalRaces: t.totalRaces ?? 0,
      logoUrl: t.logoUrl || '',
      position: index + 1,
      isRecruiting: t.isRecruiting,
      performanceLevel: t.performanceLevel || 'N/A',
      rating: t.rating ?? 0,
    }));

    return {
      teams: allTeams,
      podium: allTeams.slice(0, 3),
      recruitingCount: apiDto.recruitingCount || 0,
    };
  }
}

TeamRankingsViewDataBuilder satisfies ViewDataBuilder<GetTeamsLeaderboardOutputDTO, TeamRankingsViewData>;