import type { GetDriverProfileOutputDTO } from '@/lib/types/generated/GetDriverProfileOutputDTO';
import type { ProfileViewData } from '@/lib/view-data/ProfileViewData';
import { mediaConfig } from '@/lib/config/mediaConfig';
import { CountryFlagDisplay } from '@/lib/display-objects/CountryFlagDisplay';

export class ProfileViewDataBuilder {
  static build(apiDto: GetDriverProfileOutputDTO): ProfileViewData {
    const driver = apiDto.currentDriver;

    if (!driver) {
      return {
        driver: {
          id: '',
          name: '',
          countryCode: '',
          countryFlag: CountryFlagDisplay.fromCountryCode(null).toString(),
          avatarUrl: mediaConfig.avatars.defaultFallback,
          bio: null,
          iracingId: null,
          joinedAtLabel: '',
        },
        stats: null,
        teamMemberships: [],
        extendedProfile: null,
      };
    }

    const stats = apiDto.stats ?? null;
    const socialSummary = apiDto.socialSummary;
    const extended = apiDto.extendedProfile ?? null;

    const joinedAtLabel = new Date(driver.joinedAt).toLocaleDateString('en-US', {
      month: 'short',
      year: 'numeric',
    });

    return {
      driver: {
        id: driver.id,
        name: driver.name,
        countryCode: driver.country,
        countryFlag: CountryFlagDisplay.fromCountryCode(driver.country).toString(),
        avatarUrl: driver.avatarUrl || mediaConfig.avatars.defaultFallback,
        bio: driver.bio || null,
        iracingId: driver.iracingId || null,
        joinedAtLabel,
      },
      stats: stats
        ? {
            ratingLabel: stats.rating != null ? String(stats.rating) : '0',
            globalRankLabel: driver.globalRank != null ? `#${driver.globalRank}` : '—',
            totalRacesLabel: String(stats.totalRaces),
            winsLabel: String(stats.wins),
            podiumsLabel: String(stats.podiums),
            dnfsLabel: String(stats.dnfs),
            bestFinishLabel: stats.bestFinish != null ? `P${stats.bestFinish}` : '—',
            worstFinishLabel: stats.worstFinish != null ? `P${stats.worstFinish}` : '—',
            avgFinishLabel: stats.avgFinish != null ? `P${stats.avgFinish.toFixed(1)}` : '—',
            consistencyLabel: stats.consistency != null ? `${stats.consistency}%` : '0%',
            percentileLabel: stats.percentile != null ? `${stats.percentile}%` : '—',
          }
        : null,
      teamMemberships: apiDto.teamMemberships.map((m) => ({
        teamId: m.teamId,
        teamName: m.teamName,
        teamTag: m.teamTag || null,
        roleLabel: m.role,
        joinedAtLabel: new Date(m.joinedAt).toLocaleDateString('en-US', {
          month: 'short',
          year: 'numeric',
        }),
        href: `/teams/${m.teamId}`,
      })),
      extendedProfile: extended
        ? {
            timezone: extended.timezone,
            racingStyle: extended.racingStyle,
            favoriteTrack: extended.favoriteTrack,
            favoriteCar: extended.favoriteCar,
            availableHours: extended.availableHours,
            lookingForTeamLabel: extended.lookingForTeam ? 'Looking for Team' : '',
            openToRequestsLabel: extended.openToRequests ? 'Open to Requests' : '',
            socialHandles: extended.socialHandles.map((h) => ({
              platformLabel: h.platform,
              handle: h.handle,
              url: h.url,
            })),
            achievements: extended.achievements.map((a) => ({
              id: a.id,
              title: a.title,
              description: a.description,
              earnedAtLabel: new Date(a.earnedAt).toLocaleDateString('en-US', {
                month: 'short',
                day: 'numeric',
                year: 'numeric',
              }),
              icon: a.icon as NonNullable<ProfileViewData['extendedProfile']>['achievements'][number]['icon'],
              rarityLabel: a.rarity,
            })),
            friends: socialSummary.friends.slice(0, 8).map((f) => ({
              id: f.id,
              name: f.name,
              countryFlag: CountryFlagDisplay.fromCountryCode(f.country).toString(),
              avatarUrl: f.avatarUrl || mediaConfig.avatars.defaultFallback,
              href: `/drivers/${f.id}`,
            })),
            friendsCountLabel: String(socialSummary.friendsCount),
          }
        : null,
    };
  }
}