import { describe, expect, it, vi } from 'vitest';
import { protobuf_decode, protobuf_encode } from '@snowluma/proton';
import type { OidbBase } from '@snowluma/proto-defs/oidb';
import type { Oidb0x8a7Req, Oidb0x8a7Resp } from '@snowluma/proto-defs/oidb-actions/base';
import type { SendPacketResult } from '@snowluma/common/packet-sender';

import { GetAtAllRemain } from '../../../src/oidb-services/group-admin/get-at-all-remain';

function makeDeps(body?: Oidb0x8a7Resp) {
    const responseData =
        body !== undefined
            ? Buffer.from(protobuf_encode<OidbBase<Oidb0x8a7Resp>>({ body }))
            : Buffer.alloc(0);
    const r: SendPacketResult = {
        success: true,
        gotResponse: true,
        errorCode: 0,
        errorMessage: '',
        responseData,
    };
    return {
        sendRawPacket: vi.fn(async () => r),
        identity: { uin: '10001' } as any,
    };
}

describe('GetAtAllRemain namespace', () => {
    it('declares 0x8A7_0', () => {
        expect(GetAtAllRemain.command).toBe(0x8a7);
        expect(GetAtAllRemain.subCommand).toBe(0);
    });

    it('emits the basic{1,2,3}=1,2,1 cookie + bot uin + groupId, routes to 0x8a7_0', async () => {
        const deps = makeDeps({ canAtAll: true, groupRemain: 12, uinRemain: 5 });
        await GetAtAllRemain.invoke(deps, { groupId: 12345 });
        const [wire, bytes] = deps.sendRawPacket.mock.calls[0]!;
        expect(wire).toBe('OidbSvcTrpcTcp.0x8a7_0');
        const env = protobuf_decode<OidbBase<Oidb0x8a7Req>>(bytes);
        expect(env.body).toMatchObject({
            basic1: 1,
            basic2: 2,
            basic3: 1,
            uin: 10001n,
            groupId: 12345n,
        });
    });

    it('decodes canAtAll + groupRemain + uinRemain as plain numbers / boolean', async () => {
        const deps = makeDeps({ canAtAll: true, groupRemain: 12, uinRemain: 5 });
        const out = await GetAtAllRemain.invoke(deps, { groupId: 12345 });
        expect(out).toEqual({
            can_at_all: true,
            remain_at_all_count_for_group: 12,
            remain_at_all_count_for_uin: 5,
        });
    });

    it('falls back to false / 0 when the response body is empty', async () => {
        const deps = makeDeps({} as any);
        const out = await GetAtAllRemain.invoke(deps, { groupId: 1 });
        expect(out).toEqual({
            can_at_all: false,
            remain_at_all_count_for_group: 0,
            remain_at_all_count_for_uin: 0,
        });
    });
});