import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import { createApiClient } from '../src/lib/api/client';

const tokenStore = {
    load: () => 'test-token',
    save: () => undefined,
};

describe('API client request deadline', () => {
    beforeEach(() => {
        vi.useFakeTimers();
    });

    afterEach(() => {
        vi.useRealTimers();
        vi.unstubAllGlobals();
    });

    it('aborts a pending request and reports a retryable timeout', async () => {
        vi.stubGlobal(
            'fetch',
            vi.fn(
                (_url: string, init?: RequestInit) =>
                    new Promise<Response>((_resolve, reject) => {
                        init?.signal?.addEventListener(
                            'abort',
                            () => {
                                reject(new DOMException('Aborted', 'AbortError'));
                            },
                            { once: true },
                        );
                    }),
            ),
        );
        const client = createApiClient({ tokenStore });

        const request = client.request('/api/processes');
        const rejection = expect(request).rejects.toMatchObject({
            message: '请求超时，请重试',
            code: 'REQUEST_TIMEOUT',
        });
        await vi.advanceTimersByTimeAsync(30_000);

        await rejection;
    });

    it('cancels a request without preventing a later retry', async () => {
        const fetchMock = vi
            .fn()
            .mockImplementationOnce(
                (_url: string, init?: RequestInit) =>
                    new Promise<Response>((_resolve, reject) => {
                        init?.signal?.addEventListener(
                            'abort',
                            () => {
                                reject(new DOMException('Aborted', 'AbortError'));
                            },
                            { once: true },
                        );
                    }),
            )
            .mockResolvedValueOnce(
                new Response(JSON.stringify({ list: [] }), {
                    status: 200,
                    headers: { 'content-type': 'application/json' },
                }),
            );
        vi.stubGlobal('fetch', fetchMock);
        const client = createApiClient({ tokenStore });
        const controller = new AbortController();

        const cancelled = client.request('/api/processes', { signal: controller.signal });
        controller.abort();

        await expect(cancelled).rejects.toMatchObject({ name: 'AbortError' });
        await expect(
            client.request('/api/processes').then((response) => response.json()),
        ).resolves.toEqual({ list: [] });
    });

    it('settles a pending login with a retryable timeout message', async () => {
        vi.stubGlobal(
            'fetch',
            vi.fn(
                (_url: string, init?: RequestInit) =>
                    new Promise<Response>((_resolve, reject) => {
                        init?.signal?.addEventListener(
                            'abort',
                            () => {
                                reject(new DOMException('Aborted', 'AbortError'));
                            },
                            { once: true },
                        );
                    }),
            ),
        );
        const client = createApiClient({ tokenStore });

        const login = client.login('password');
        await vi.advanceTimersByTimeAsync(30_000);

        await expect(login).resolves.toEqual({
            ok: false,
            message: '请求超时，请重试',
        });
    });
});