139 lines
4.2 KiB
TypeScript
139 lines
4.2 KiB
TypeScript
import type { ITeamRepository } from '@core/racing/domain/repositories/ITeamRepository';
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import type { ITeamMembershipRepository } from '@core/racing/domain/repositories/ITeamMembershipRepository';
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import { SkillLevelService, type SkillLevel } from '@core/racing/domain/services/SkillLevelService';
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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 { Logger } from '@core/shared/application';
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import type { UseCaseOutputPort } from '@core/shared/application/UseCaseOutputPort';
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import type { Team } from '@core/racing/domain/entities/Team';
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interface DriverStatsAdapter {
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rating: number | null;
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wins: number;
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totalRaces: number;
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}
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export type GetTeamsLeaderboardInput = {
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leagueId: string;
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seasonId?: string;
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};
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export interface TeamLeaderboardItem {
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team: Team;
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memberCount: number;
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rating: number | null;
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totalWins: number;
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totalRaces: number;
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performanceLevel: SkillLevel;
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isRecruiting: boolean;
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createdAt: Date;
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}
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export interface GetTeamsLeaderboardResult {
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items: TeamLeaderboardItem[];
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recruitingCount: number;
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groupsBySkillLevel: Record<SkillLevel, TeamLeaderboardItem[]>;
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topItems: TeamLeaderboardItem[];
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}
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export type GetTeamsLeaderboardErrorCode = 'LEAGUE_NOT_FOUND' | 'SEASON_NOT_FOUND' | 'REPOSITORY_ERROR';
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/**
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* Use case: GetTeamsLeaderboardUseCase
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*/
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export class GetTeamsLeaderboardUseCase {
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constructor(
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private readonly teamRepository: ITeamRepository,
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private readonly teamMembershipRepository: ITeamMembershipRepository,
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private readonly getDriverStats: (driverId: string) => DriverStatsAdapter | null,
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private readonly logger: Logger,
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private readonly output: UseCaseOutputPort<GetTeamsLeaderboardResult>,
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) {}
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async execute(
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_input: GetTeamsLeaderboardInput,
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): Promise<Result<void, ApplicationErrorCode<GetTeamsLeaderboardErrorCode, { message: string }>>> {
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void _input;
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try {
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const allTeams = await this.teamRepository.findAll();
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const items: TeamLeaderboardItem[] = [];
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await Promise.all(
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allTeams.map(async (team) => {
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const memberships = await this.teamMembershipRepository.getTeamMembers(team.id);
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const memberCount = memberships.length;
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let ratingSum = 0;
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let ratingCount = 0;
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let totalWins = 0;
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let totalRaces = 0;
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for (const membership of memberships) {
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const stats = this.getDriverStats(membership.driverId);
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if (!stats) continue;
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if (typeof stats.rating === 'number') {
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ratingSum += stats.rating;
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ratingCount += 1;
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}
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totalWins += stats.wins ?? 0;
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totalRaces += stats.totalRaces ?? 0;
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}
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const averageRating = ratingCount > 0 ? ratingSum / ratingCount : null;
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const performanceLevel = SkillLevelService.getTeamPerformanceLevel(averageRating);
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items.push({
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team,
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memberCount,
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rating: averageRating,
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totalWins,
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totalRaces,
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performanceLevel,
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isRecruiting: true,
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createdAt: new Date(),
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});
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}),
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);
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const recruitingCount = items.filter((t) => t.isRecruiting).length;
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const groupsBySkillLevel: Record<SkillLevel, TeamLeaderboardItem[]> = {
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beginner: [],
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intermediate: [],
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advanced: [],
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pro: [],
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};
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items.forEach((item) => {
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const level = item.performanceLevel;
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groupsBySkillLevel[level].push(item);
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});
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const topItems = items
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.slice()
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.sort((a, b) => (b.rating ?? 0) - (a.rating ?? 0))
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.slice(0, 10);
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this.output.present({
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items,
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recruitingCount,
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groupsBySkillLevel,
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topItems,
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});
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return Result.ok(undefined);
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} catch (err) {
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const error = err as { message?: string } | undefined;
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this.logger.error('Error retrieving teams leaderboard', err as Error);
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return Result.err({
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code: 'REPOSITORY_ERROR',
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details: { message: error?.message ?? 'Failed to load teams leaderboard' },
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});
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}
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}
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}
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