import { describe, expect, it } from 'vitest';
import type { WorksTokenPointBalance } from '@/lib/works-square';
import {
  formatWorksTokenPointValue,
  isWorksTokenPointBalanceExhausted,
} from '@/lib/works-square-token-points';

function pointBalance(
  overrides: Partial<WorksTokenPointBalance> = {},
): WorksTokenPointBalance {
  return {
    plan_code: 'mastery',
    plan_name: '精通',
    cycle_start: '2026-09-01T00:00:00Z',
    cycle_end: '2026-09-08T00:00:00Z',
    next_refresh_at: '2026-09-08T00:00:00Z',
    weekly_allowance: '500.00',
    weekly_used: '100.00',
    weekly_reserved: '25.00',
    weekly_remaining: '375.00',
    permanent_total: '50.00',
    permanent_used: '0.00',
    permanent_reserved: '0.00',
    permanent_remaining: '50.00',
    total_remaining: '425.00',
    entitlement_source: 'self',
    family_shared: false,
    can_manage_membership: true,
    upgrade_action: 'self_service',
    shared_available: null,
    ...overrides,
  };
}

describe('Works Square V2 token points', () => {
  it('formats exact server point strings without losing integer precision', () => {
    expect(formatWorksTokenPointValue('1000.00')).toBe('1,000');
    expect(formatWorksTokenPointValue('123456789012345678.50')).toBe('123,456,789,012,345,678.5');
    expect(formatWorksTokenPointValue(null)).toBeNull();
    expect(formatWorksTokenPointValue('-1.00')).toBeNull();
  });

  it('treats an exact zero total balance as exhausted for the owner', () => {
    expect(isWorksTokenPointBalanceExhausted(pointBalance({ total_remaining: '0.00' }))).toBe(true);
    expect(isWorksTokenPointBalanceExhausted(pointBalance())).toBe(false);
    expect(isWorksTokenPointBalanceExhausted(pointBalance({ total_remaining: null }))).toBe(false);
  });

  it('uses the server-provided coarse availability for every non-manager', () => {
    const nonManager = pointBalance({
      plan_code: null,
      plan_name: null,
      can_manage_membership: false,
      family_shared: false,
      upgrade_action: 'contact_family_owner',
      shared_available: false,
      total_remaining: null,
    });
    expect(isWorksTokenPointBalanceExhausted(nonManager)).toBe(true);
    expect(isWorksTokenPointBalanceExhausted({ ...nonManager, shared_available: true })).toBe(false);
    expect(isWorksTokenPointBalanceExhausted({ ...nonManager, family_shared: true })).toBe(true);
  });
});