Files
gridpilot.gg/core/racing/application/use-cases/GetTeamsLeaderboardUseCase.ts
2025-12-16 21:05:01 +01:00

102 lines
3.4 KiB
TypeScript

import type { ITeamRepository } from '@core/racing/domain/repositories/ITeamRepository';
import type { ITeamMembershipRepository } from '@core/racing/domain/repositories/ITeamMembershipRepository';
import type { IDriverRepository } from '@core/racing/domain/repositories/IDriverRepository';
import type { TeamsLeaderboardResultDTO } from '@core/racing/application/presenters/ITeamsLeaderboardPresenter';
import { SkillLevelService } from '@core/racing/domain/services/SkillLevelService';
import { Result } from '@core/shared/application/Result';
import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
import type { AsyncUseCase } from '@core/shared/application';
import type { Logger } from '@core/shared/application';
interface DriverStatsAdapter {
rating: number | null;
wins: number;
totalRaces: number;
}
interface TeamLeaderboardItem {
id: string;
name: string;
memberCount: number;
rating: number | null;
totalWins: number;
totalRaces: number;
performanceLevel: string;
isRecruiting: boolean;
createdAt: Date;
description: string;
}
/**
* Use case: GetTeamsLeaderboardUseCase
*/
export class GetTeamsLeaderboardUseCase implements AsyncUseCase<void, TeamsLeaderboardResultDTO, 'REPOSITORY_ERROR'>
{
constructor(
private readonly teamRepository: ITeamRepository,
private readonly teamMembershipRepository: ITeamMembershipRepository,
private readonly driverRepository: IDriverRepository,
private readonly getDriverStats: (driverId: string) => DriverStatsAdapter | null,
private readonly logger: Logger,
) {}
async execute(): Promise<Result<TeamsLeaderboardResultDTO, ApplicationErrorCode<'REPOSITORY_ERROR'>>> {
try {
const allTeams = await this.teamRepository.findAll();
const teams: TeamLeaderboardItem[] = [];
await Promise.all(
allTeams.map(async (team) => {
const memberships = await this.teamMembershipRepository.getTeamMembers(team.id);
const memberCount = memberships.length;
let ratingSum = 0;
let ratingCount = 0;
let totalWins = 0;
let totalRaces = 0;
for (const membership of memberships) {
const stats = this.getDriverStats(membership.driverId);
if (!stats) continue;
if (typeof stats.rating === 'number') {
ratingSum += stats.rating;
ratingCount += 1;
}
totalWins += stats.wins ?? 0;
totalRaces += stats.totalRaces ?? 0;
}
const averageRating = ratingCount > 0 ? ratingSum / ratingCount : null;
const performanceLevel = SkillLevelService.getTeamPerformanceLevel(averageRating);
teams.push({
id: team.id,
name: team.name,
memberCount,
rating: averageRating,
totalWins,
totalRaces,
performanceLevel,
isRecruiting: true,
createdAt: new Date(),
description: team.description,
});
})
);
const recruitingCount = teams.filter((t) => t.isRecruiting).length;
const result: TeamsLeaderboardResultDTO = {
teams,
recruitingCount,
};
return Result.ok(result);
} catch (error) {
this.logger.error('Error retrieving teams leaderboard', error as Error);
return Result.err({ code: 'REPOSITORY_ERROR', details: { message: 'Failed to retrieve teams leaderboard' } });
}
}
}