import { describe, expect, it, vi } from 'vitest';
import { HookPacketClient } from '../src/hook-packet-client';
import {
    HookPipeRequestError,
    PIPE_STATUS_CONNECTION_UNAVAILABLE,
    type QqHookClient,
} from '../src/qq-hook-client';

function fakeClient(send: QqHookClient['send']): QqHookClient {
    return {
        isLoggedIn: true,
        send,
    } as unknown as QqHookClient;
}

describe('HookPacketClient outbound health', () => {
    it('reports native connection loss once and recovers after a successful request', async () => {
        const healthChanged = vi.fn();
        const send = vi
            .fn<QqHookClient['send']>()
            .mockRejectedValueOnce(
                new HookPipeRequestError(
                    'The QQ connection changed. Please restart QQ and try again.',
                    PIPE_STATUS_CONNECTION_UNAVAILABLE,
                    1,
                ),
            )
            .mockRejectedValueOnce(
                new HookPipeRequestError(
                    'The QQ connection changed. Please restart QQ and try again.',
                    PIPE_STATUS_CONNECTION_UNAVAILABLE,
                    2,
                ),
            )
            .mockResolvedValueOnce({
                requestId: 3,
                error: 0,
                message: '',
                body: Buffer.from('ok'),
            });
        const sender = new HookPacketClient(fakeClient(send), healthChanged);

        await expect(sender.sendPacket('Test.Command', Buffer.alloc(0))).resolves.toMatchObject({
            success: false,
            gotResponse: false,
        });
        await sender.sendPacket('Test.Command', Buffer.alloc(0));
        await expect(sender.sendPacket('Test.Command', Buffer.alloc(0))).resolves.toMatchObject({
            success: true,
            gotResponse: true,
        });

        expect(healthChanged.mock.calls).toEqual([[false], [true]]);
    });

    it('does not classify ordinary request rejection as connection loss', async () => {
        const healthChanged = vi.fn();
        const send = vi
            .fn<QqHookClient['send']>()
            .mockRejectedValue(new HookPipeRequestError('This request is not valid.', -38, 1));
        const sender = new HookPacketClient(fakeClient(send), healthChanged);

        await expect(sender.sendPacket('Test.Command', Buffer.alloc(0))).resolves.toMatchObject({
            success: false,
            gotResponse: false,
        });

        expect(healthChanged).not.toHaveBeenCalled();
    });
});