123 lines
4.1 KiB
TypeScript
123 lines
4.1 KiB
TypeScript
import type { Logger, UseCase } from '@core/shared/application';
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import { Result } from '@core/shared/application/Result';
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import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
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import type { Driver } from '../../domain/entities/Driver';
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import type { Team } from '../../domain/entities/Team';
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import type { IDriverRepository } from '../../domain/repositories/IDriverRepository';
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import type { IDriverStatsService } from '../../domain/services/IDriverStatsService';
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import type { IRankingService } from '../../domain/services/IRankingService';
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import { SkillLevelService, type SkillLevel } from '../../domain/services/SkillLevelService';
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export type GetDriversLeaderboardInput = {
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leagueId?: string;
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seasonId?: string;
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};
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export interface DriverLeaderboardItem {
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driver: Driver;
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team?: Team;
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rating: number;
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skillLevel: SkillLevel;
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racesCompleted: number;
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wins: number;
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podiums: number;
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isActive: boolean;
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rank: number;
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avatarUrl?: string;
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}
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export interface GetDriversLeaderboardResult {
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items: DriverLeaderboardItem[];
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totalRaces: number;
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totalWins: number;
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activeCount: number;
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}
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export type GetDriversLeaderboardErrorCode =
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| 'LEAGUE_NOT_FOUND'
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| 'SEASON_NOT_FOUND'
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| 'REPOSITORY_ERROR';
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/**
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* Use Case for retrieving driver leaderboard data.
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* Returns a Result containing the domain leaderboard model.
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*/
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export class GetDriversLeaderboardUseCase implements UseCase<GetDriversLeaderboardInput, GetDriversLeaderboardResult, GetDriversLeaderboardErrorCode> {
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constructor(
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private readonly driverRepository: IDriverRepository,
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private readonly rankingService: IRankingService,
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private readonly driverStatsService: IDriverStatsService,
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private readonly getDriverAvatar: (driverId: string) => Promise<string | undefined>,
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private readonly logger: Logger,
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) {}
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async execute(
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input: GetDriversLeaderboardInput,
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): Promise<
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Result<
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GetDriversLeaderboardResult,
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ApplicationErrorCode<GetDriversLeaderboardErrorCode, { message: string }>
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>
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> {
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this.logger.debug('Executing GetDriversLeaderboardUseCase', { input });
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try {
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const drivers = await this.driverRepository.findAll();
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const rankings = this.rankingService.getAllDriverRankings();
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const avatarUrls: Record<string, string | undefined> = {};
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for (const driver of drivers) {
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avatarUrls[driver.id] = await this.getDriverAvatar(driver.id);
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}
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// TODO maps way too much data, should just create Domain Objects
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const items: DriverLeaderboardItem[] = drivers.map(driver => {
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const ranking = rankings.find(r => r.driverId === driver.id);
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const stats = this.driverStatsService.getDriverStats(driver.id);
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const rating = ranking?.rating ?? 0;
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const racesCompleted = stats?.totalRaces ?? 0;
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const skillLevel: SkillLevel = SkillLevelService.getSkillLevel(rating);
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const avatarUrl = avatarUrls[driver.id];
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return {
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driver,
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rating,
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skillLevel,
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racesCompleted,
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wins: stats?.wins ?? 0,
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podiums: stats?.podiums ?? 0,
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isActive: racesCompleted > 0,
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rank: ranking?.overallRank ?? 0,
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...(avatarUrl !== undefined ? { avatarUrl } : {}),
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};
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});
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const totalRaces = items.reduce((sum, d) => sum + d.racesCompleted, 0);
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const totalWins = items.reduce((sum, d) => sum + d.wins, 0);
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const activeCount = items.filter(d => d.isActive).length;
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const result: GetDriversLeaderboardResult = {
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items: items.sort((a, b) => b.rating - a.rating),
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totalRaces,
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totalWins,
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activeCount,
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};
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this.logger.debug('Successfully computed drivers leaderboard');
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return Result.ok(result);
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} catch (error) {
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const err = error instanceof Error ? error : new Error(String(error));
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this.logger.error('Error executing GetDriversLeaderboardUseCase', err);
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return Result.err({
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code: 'REPOSITORY_ERROR',
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details: { message: err.message ?? 'Unknown error occurred' },
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});
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}
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}
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}
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