import { describe, it, expect } from 'vitest';

describe('LeaderboardsService', () => {
  describe('happy paths', () => {
    it('should successfully fetch leaderboard data', () => {
      // TODO: Implement test
    });

    it('should handle multiple leaderboard types', () => {
      // TODO: Implement test
    });

    it('should return formatted leaderboard entries', () => {
      // TODO: Implement test
    });
  });

  describe('failure modes', () => {
    it('should handle API timeout errors', () => {
      // TODO: Implement test
    });

    it('should handle malformed leaderboard data', () => {
      // TODO: Implement test
    });

    it('should handle missing leaderboard configurations', () => {
      // TODO: Implement test
    });
  });

  describe('retries', () => {
    it('should retry on API rate limiting', () => {
      // TODO: Implement test
    });

    it('should implement exponential backoff', () => {
      // TODO: Implement test
    });
  });

  describe('fallback logic', () => {
    it('should use static leaderboard data when dynamic fails', () => {
      // TODO: Implement test
    });

    it('should return partial data when some sources fail', () => {
      // TODO: Implement test
    });
  });

  describe('aggregation logic', () => {
    it('should aggregate data from multiple sources', () => {
      // TODO: Implement test
    });

    it('should handle conflicting data from sources', () => {
      // TODO: Implement test
    });

    it('should calculate leaderboard positions correctly', () => {
      // TODO: Implement test
    });
  });

  describe('decision branches', () => {
    it('should select different data sources based on availability', () => {
      // TODO: Implement test
    });

    it('should apply different aggregation strategies per leaderboard type', () => {
      // TODO: Implement test
    });

    it('should handle different user permissions', () => {
      // TODO: Implement test
    });
  });
});