import { describe, it, expect } from 'vitest';
import { LeagueWalletViewDataBuilder } from './LeagueWalletViewDataBuilder';
import type { LeagueWalletApiDto } from '@/lib/types/tbd/LeagueWalletApiDto';

describe('LeagueWalletViewDataBuilder', () => {
  describe('happy paths', () => {
    it('should transform LeagueWalletApiDto to LeagueWalletViewData correctly', () => {
      const leagueWalletApiDto: LeagueWalletApiDto = {
        leagueId: 'league-123',
        balance: 5000,
        currency: 'USD',
        transactions: [
          {
            id: 'txn-1',
            amount: 1000,
            status: 'completed',
            createdAt: '2024-01-01T10:00:00Z',
            description: 'Sponsorship payment',
          },
        ],
      };

      const result = LeagueWalletViewDataBuilder.build(leagueWalletApiDto);

      expect(result).toEqual({
        leagueId: 'league-123',
        balance: 5000,
        formattedBalance: expect.any(String),
        totalRevenue: 5000,
        formattedTotalRevenue: expect.any(String),
        totalFees: 0,
        formattedTotalFees: expect.any(String),
        pendingPayouts: 0,
        formattedPendingPayouts: expect.any(String),
        currency: 'USD',
        transactions: [
          {
            id: 'txn-1',
            amount: 1000,
            status: 'completed',
            createdAt: '2024-01-01T10:00:00Z',
            description: 'Sponsorship payment',
            formattedAmount: expect.any(String),
            amountColor: 'green',
            formattedDate: expect.any(String),
            statusColor: 'green',
            typeColor: 'blue',
          },
        ],
      });
    });

    it('should handle empty transactions', () => {
      const leagueWalletApiDto: LeagueWalletApiDto = {
        leagueId: 'league-456',
        balance: 0,
        currency: 'USD',
        transactions: [],
      };

      const result = LeagueWalletViewDataBuilder.build(leagueWalletApiDto);

      expect(result.transactions).toHaveLength(0);
      expect(result.balance).toBe(0);
    });

    it('should handle multiple transactions', () => {
      const leagueWalletApiDto: LeagueWalletApiDto = {
        leagueId: 'league-789',
        balance: 10000,
        currency: 'USD',
        transactions: [
          {
            id: 'txn-1',
            amount: 5000,
            status: 'completed',
            createdAt: '2024-01-01T10:00:00Z',
            description: 'Sponsorship payment',
          },
          {
            id: 'txn-2',
            amount: -1000,
            status: 'completed',
            createdAt: '2024-01-02T10:00:00Z',
            description: 'Payout',
          },
        ],
      };

      const result = LeagueWalletViewDataBuilder.build(leagueWalletApiDto);

      expect(result.transactions).toHaveLength(2);
    });
  });

  describe('data transformation', () => {
    it('should preserve all DTO fields in the output', () => {
      const leagueWalletApiDto: LeagueWalletApiDto = {
        leagueId: 'league-101',
        balance: 7500,
        currency: 'EUR',
        transactions: [
          {
            id: 'txn-1',
            amount: 2500,
            status: 'completed',
            createdAt: '2024-01-01T10:00:00Z',
            description: 'Test transaction',
          },
        ],
      };

      const result = LeagueWalletViewDataBuilder.build(leagueWalletApiDto);

      expect(result.leagueId).toBe(leagueWalletApiDto.leagueId);
      expect(result.balance).toBe(leagueWalletApiDto.balance);
      expect(result.currency).toBe(leagueWalletApiDto.currency);
    });

    it('should not modify the input DTO', () => {
      const leagueWalletApiDto: LeagueWalletApiDto = {
        leagueId: 'league-102',
        balance: 5000,
        currency: 'USD',
        transactions: [],
      };

      const originalDto = { ...leagueWalletApiDto };
      LeagueWalletViewDataBuilder.build(leagueWalletApiDto);

      expect(leagueWalletApiDto).toEqual(originalDto);
    });
  });

  describe('edge cases', () => {
    it('should handle negative balance', () => {
      const leagueWalletApiDto: LeagueWalletApiDto = {
        leagueId: 'league-103',
        balance: -500,
        currency: 'USD',
        transactions: [
          {
            id: 'txn-1',
            amount: -500,
            status: 'completed',
            createdAt: '2024-01-01T10:00:00Z',
            description: 'Overdraft',
          },
        ],
      };

      const result = LeagueWalletViewDataBuilder.build(leagueWalletApiDto);

      expect(result.balance).toBe(-500);
      expect(result.transactions[0].amountColor).toBe('red');
    });

    it('should handle pending transactions', () => {
      const leagueWalletApiDto: LeagueWalletApiDto = {
        leagueId: 'league-104',
        balance: 1000,
        currency: 'USD',
        transactions: [
          {
            id: 'txn-1',
            amount: 500,
            status: 'pending',
            createdAt: '2024-01-01T10:00:00Z',
            description: 'Pending payment',
          },
        ],
      };

      const result = LeagueWalletViewDataBuilder.build(leagueWalletApiDto);

      expect(result.transactions[0].statusColor).toBe('yellow');
    });

    it('should handle failed transactions', () => {
      const leagueWalletApiDto: LeagueWalletApiDto = {
        leagueId: 'league-105',
        balance: 1000,
        currency: 'USD',
        transactions: [
          {
            id: 'txn-1',
            amount: 500,
            status: 'failed',
            createdAt: '2024-01-01T10:00:00Z',
            description: 'Failed payment',
          },
        ],
      };

      const result = LeagueWalletViewDataBuilder.build(leagueWalletApiDto);

      expect(result.transactions[0].statusColor).toBe('red');
    });

    it('should handle different currencies', () => {
      const leagueWalletApiDto: LeagueWalletApiDto = {
        leagueId: 'league-106',
        balance: 1000,
        currency: 'EUR',
        transactions: [],
      };

      const result = LeagueWalletViewDataBuilder.build(leagueWalletApiDto);

      expect(result.currency).toBe('EUR');
    });
  });
});