/** @vitest-environment jsdom */

import { act, renderHook } from '@testing-library/react';
import { beforeEach, describe, expect, test, vi } from 'vitest';

const clientApi = vi.hoisted(() => ({
  getClientProfileRechargeCenter: vi.fn(),
}));

vi.mock('../src/services/clientApi', () => clientApi);

import { useWalletStore } from '../src/stores/useWalletStore';

function detailedBalance(totalPoints: number) {
  return {
    totalPoints,
    permanentPoints: Math.max(0, totalPoints - 20),
    limitedPoints: 20,
    limitedExpiresAt: '2026-08-01T00:00:00Z',
    dailyFreePoints: 0,
    dailyFreeResetPoints: 20,
    dailyFreeResetsAt: '2026-07-18T00:00:00Z',
  };
}

describe('useWalletStore', () => {
  beforeEach(() => {
    useWalletStore.getState().resetWalletBalance();
    vi.clearAllMocks();
  });

  test('keeps mudPointBalance as the only balance state', async () => {
    const mudPointBalance = detailedBalance(120);
    clientApi.getClientProfileRechargeCenter.mockResolvedValue({
      walletBalance: 120,
      mudPointBalance,
    });
    const { result } = renderHook(() => useWalletStore());

    await act(async () => {
      await result.current.onWalletBalanceMayHaveChanged();
    });

    expect(result.current.mudPointBalance).toEqual(mudPointBalance);
    expect(result.current.mudPointBalanceStatus).toBe('ready');
    expect(result.current.mudPointBalanceError).toBe('');
    expect(Object.keys(result.current).sort()).toEqual([
      'applyWalletBalanceSnapshot',
      'mudPointBalance',
      'mudPointBalanceError',
      'mudPointBalanceStatus',
      'onWalletBalanceMayHaveChanged',
      'resetWalletBalance',
    ]);
  });

  test('recovers from a failed refresh with a recharge-center snapshot', async () => {
    clientApi.getClientProfileRechargeCenter.mockRejectedValueOnce(
      new Error('首次读取失败'),
    );
    await useWalletStore.getState().onWalletBalanceMayHaveChanged();

    const mudPointBalance = detailedBalance(120);
    useWalletStore.getState().applyWalletBalanceSnapshot(mudPointBalance);

    expect(useWalletStore.getState().mudPointBalance).toEqual(mudPointBalance);
    expect(useWalletStore.getState().mudPointBalanceStatus).toBe('ready');
    expect(useWalletStore.getState().mudPointBalanceError).toBe('');
  });

  test('does not let an older refresh overwrite an applied snapshot', async () => {
    let rejectRequest: ((reason: Error) => void) | undefined;
    clientApi.getClientProfileRechargeCenter.mockImplementationOnce(
      () =>
        new Promise((_, reject) => {
          rejectRequest = reject;
        }),
    );

    const refresh = useWalletStore.getState().onWalletBalanceMayHaveChanged();
    const mudPointBalance = detailedBalance(160);
    useWalletStore.getState().applyWalletBalanceSnapshot(mudPointBalance);
    rejectRequest?.(new Error('过期请求失败'));
    await refresh;

    expect(useWalletStore.getState().mudPointBalance).toEqual(mudPointBalance);
    expect(useWalletStore.getState().mudPointBalanceStatus).toBe('ready');
    expect(useWalletStore.getState().mudPointBalanceError).toBe('');
  });

  test('rejects a response that omits mudPointBalance instead of inventing a breakdown', async () => {
    clientApi.getClientProfileRechargeCenter.mockResolvedValue({
      walletBalance: 120,
    });

    await useWalletStore.getState().onWalletBalanceMayHaveChanged();

    expect(useWalletStore.getState().mudPointBalance).toBeNull();
    expect(useWalletStore.getState().mudPointBalanceStatus).toBe('error');
    expect(useWalletStore.getState().mudPointBalanceError).toBe(
      '充值中心响应缺少泥点余额',
    );
  });

  test('uses mudPointBalance from recharge-center as the authoritative snapshot', async () => {
    const mudPointBalance = detailedBalance(180);
    clientApi.getClientProfileRechargeCenter.mockResolvedValue({
      walletBalance: 999,
      mudPointBalance,
    });

    await useWalletStore.getState().onWalletBalanceMayHaveChanged();

    expect(useWalletStore.getState().mudPointBalance).toEqual(mudPointBalance);
  });

  test('discards an outdated response and performs one trailing refresh', async () => {
    let resolveFirst: ((value: unknown) => void) | undefined;
    clientApi.getClientProfileRechargeCenter
      .mockImplementationOnce(
        () =>
          new Promise((resolve) => {
            resolveFirst = resolve;
          }),
      )
      .mockResolvedValueOnce({
        walletBalance: 80,
        mudPointBalance: detailedBalance(80),
      });

    const firstRefresh =
      useWalletStore.getState().onWalletBalanceMayHaveChanged();
    const trailingRefresh =
      useWalletStore.getState().onWalletBalanceMayHaveChanged();
    resolveFirst?.({
      walletBalance: 120,
      mudPointBalance: detailedBalance(120),
    });
    await Promise.all([firstRefresh, trailingRefresh]);

    expect(clientApi.getClientProfileRechargeCenter).toHaveBeenCalledTimes(2);
    expect(useWalletStore.getState().mudPointBalance?.totalPoints).toBe(80);
  });

  test('retains the last balance when a refresh fails', async () => {
    clientApi.getClientProfileRechargeCenter.mockResolvedValueOnce({
      walletBalance: 90,
      mudPointBalance: detailedBalance(90),
    });
    await useWalletStore.getState().onWalletBalanceMayHaveChanged();
    clientApi.getClientProfileRechargeCenter.mockRejectedValueOnce(
      new Error('刷新失败'),
    );

    await useWalletStore.getState().onWalletBalanceMayHaveChanged();

    expect(useWalletStore.getState().mudPointBalance?.totalPoints).toBe(90);
    expect(useWalletStore.getState().mudPointBalanceStatus).toBe('error');
    expect(useWalletStore.getState().mudPointBalanceError).toBe('刷新失败');
  });

  test('does not restore a late response after reset', async () => {
    let resolveRequest: ((value: unknown) => void) | undefined;
    clientApi.getClientProfileRechargeCenter.mockImplementationOnce(
      () =>
        new Promise((resolve) => {
          resolveRequest = resolve;
        }),
    );

    const refresh = useWalletStore.getState().onWalletBalanceMayHaveChanged();
    useWalletStore.getState().resetWalletBalance();
    resolveRequest?.({
      walletBalance: 75,
      mudPointBalance: detailedBalance(75),
    });
    await refresh;

    expect(useWalletStore.getState().mudPointBalance).toBeNull();
    expect(useWalletStore.getState().mudPointBalanceStatus).toBe('idle');
  });
});