import type { DashboardOverviewViewModelData } from '@/lib/view-models/DashboardOverviewViewModelData';
import type { DashboardViewData } from './DashboardViewData';
import { 
  formatDashboardDate,
  formatRating,
  formatRank,
  formatConsistency,
  formatRaceCount,
  formatFriendCount,
  formatLeaguePosition,
  formatPoints,
  formatTotalDrivers,
} from '@/lib/display-objects/DashboardDisplay';

/**
 * Build DashboardViewData directly from ViewModelData
 * Used for SSR phase - no ViewModel instantiation
 */
export function buildDashboardViewData(viewModelData: DashboardOverviewViewModelData): DashboardViewData {
  return {
    currentDriver: {
      name: viewModelData.currentDriver?.name || '',
      avatarUrl: viewModelData.currentDriver?.avatarUrl || '',
      country: viewModelData.currentDriver?.country || '',
      rating: viewModelData.currentDriver ? formatRating(viewModelData.currentDriver.rating) : '0.0',
      rank: viewModelData.currentDriver ? formatRank(viewModelData.currentDriver.globalRank) : '0',
      totalRaces: viewModelData.currentDriver ? formatRaceCount(viewModelData.currentDriver.totalRaces) : '0',
      wins: viewModelData.currentDriver ? formatRaceCount(viewModelData.currentDriver.wins) : '0',
      podiums: viewModelData.currentDriver ? formatRaceCount(viewModelData.currentDriver.podiums) : '0',
      consistency: viewModelData.currentDriver ? formatConsistency(viewModelData.currentDriver.consistency) : '0%',
    },
    nextRace: viewModelData.nextRace ? (() => {
      const dateInfo = formatDashboardDate(new Date(viewModelData.nextRace.scheduledAt));
      return {
        id: viewModelData.nextRace.id,
        track: viewModelData.nextRace.track,
        car: viewModelData.nextRace.car,
        scheduledAt: viewModelData.nextRace.scheduledAt,
        formattedDate: dateInfo.date,
        formattedTime: dateInfo.time,
        timeUntil: dateInfo.relative,
        isMyLeague: viewModelData.nextRace.isMyLeague,
      };
    })() : null,
    upcomingRaces: viewModelData.upcomingRaces.map((race) => {
      const dateInfo = formatDashboardDate(new Date(race.scheduledAt));
      return {
        id: race.id,
        track: race.track,
        car: race.car,
        scheduledAt: race.scheduledAt,
        formattedDate: dateInfo.date,
        formattedTime: dateInfo.time,
        timeUntil: dateInfo.relative,
        isMyLeague: race.isMyLeague,
      };
    }),
    leagueStandings: viewModelData.leagueStandingsSummaries.map((standing) => ({
      leagueId: standing.leagueId,
      leagueName: standing.leagueName,
      position: formatLeaguePosition(standing.position),
      points: formatPoints(standing.points),
      totalDrivers: formatTotalDrivers(standing.totalDrivers),
    })),
    feedItems: viewModelData.feedSummary.items.map((item) => ({
      id: item.id,
      type: item.type,
      headline: item.headline,
      body: item.body,
      timestamp: item.timestamp,
      formattedTime: formatDashboardDate(new Date(item.timestamp)).relative,
      ctaHref: item.ctaHref,
      ctaLabel: item.ctaLabel,
    })),
    friends: viewModelData.friends.map((friend) => ({
      id: friend.id,
      name: friend.name,
      avatarUrl: friend.avatarUrl,
      country: friend.country,
    })),
    activeLeaguesCount: formatRaceCount(viewModelData.activeLeaguesCount),
    friendCount: formatFriendCount(viewModelData.friends.length),
    hasUpcomingRaces: viewModelData.upcomingRaces.length > 0,
    hasLeagueStandings: viewModelData.leagueStandingsSummaries.length > 0,
    hasFeedItems: viewModelData.feedSummary.items.length > 0,
    hasFriends: viewModelData.friends.length > 0,
  };
}