import { describe, expect, it } from 'vitest';
import type { DashboardStatsResponseDto } from '../../types/generated/DashboardStatsResponseDTO';
import type { AdminDashboardViewData } from '../../view-data/AdminDashboardViewData';
import { AdminDashboardViewDataBuilder } from './AdminDashboardViewDataBuilder';

describe('AdminDashboardViewDataBuilder', () => {
  it('should transform DashboardStatsResponseDto to AdminDashboardViewData correctly', () => {
    const apiDto: DashboardStatsResponseDto = {
      totalUsers: 1000,
      activeUsers: 800,
      suspendedUsers: 50,
      deletedUsers: 150,
      systemAdmins: 5,
      recentLogins: 200,
      newUsersToday: 10,
    };

    const result: AdminDashboardViewData = AdminDashboardViewDataBuilder.build(apiDto);

    expect(result.stats).toEqual({
      totalUsers: 1000,
      activeUsers: 800,
      suspendedUsers: 50,
      deletedUsers: 150,
      systemAdmins: 5,
      recentLogins: 200,
      newUsersToday: 10,
    });
  });

  it('should not modify the input DTO', () => {
    const apiDto: DashboardStatsResponseDto = {
      totalUsers: 1000,
      activeUsers: 800,
      suspendedUsers: 50,
      deletedUsers: 150,
      systemAdmins: 5,
      recentLogins: 200,
      newUsersToday: 10,
    };

    const originalDto = { ...apiDto };
    AdminDashboardViewDataBuilder.build(apiDto);

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