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 {
    OidbGetGroupExtReq,
    OidbGetGroupExtResp,
} from '@snowluma/proto-defs/oidb-actions/group-ext';
import type { SendPacketResult } from '@snowluma/common/packet-sender';
import { FetchGroupExtInfo } from '../../../src/oidb-services/group-admin/get-group-ext-info';
import { env, v, m } from '../_pb-oracle';

function makeSender(body?: OidbGetGroupExtResp) {
    const responseData =
        body !== undefined
            ? Buffer.from(protobuf_encode<OidbBase<OidbGetGroupExtResp>>({ body }))
            : Buffer.alloc(0);
    const result: SendPacketResult = {
        success: true,
        gotResponse: true,
        errorCode: 0,
        errorMessage: '',
        responseData,
    };
    return { sendRawPacket: vi.fn(async () => result) };
}

describe('FetchGroupExtInfo namespace', () => {
    it('declares command 0xEF0 sub 1, uin form', () => {
        expect(FetchGroupExtInfo.command).toBe(0xef0);
        expect(FetchGroupExtInfo.subCommand).toBe(1);
        expect(FetchGroupExtInfo.uinForm).toBe(true);
    });

    it('byte-oracle: routes to 0xef0_1 and locks {1:groupCode, 2:{29:1,30:1}}', async () => {
        const sender = makeSender({
            items: [
                {
                    groupCode: 12345n,
                    ext: { inviteRobotMemberSwitch: 1, inviteRobotMemberExamine: 2 },
                },
            ],
        });
        await FetchGroupExtInfo.invoke(sender, { groupId: 12345 });

        const [cmd, bytes] = sender.sendRawPacket.mock.calls[0]!;
        expect(cmd).toBe('OidbSvcTrpcTcp.0xef0_1');
        const filter = [...v(29, 1), ...v(30, 1)];
        const body = [...v(1, 12345), ...m(2, filter)];
        expect(Buffer.from(bytes).toString('hex')).toBe(env(0xef0, 1, body, true));
        const envelope = protobuf_decode<OidbBase<OidbGetGroupExtReq>>(bytes);
        expect(envelope.reserved).toBe(1);
        expect(envelope.body?.groupCodes).toEqual([12345n]);
    });

    it('returns robot-add switch/examine from the first item', async () => {
        const sender = makeSender({
            items: [
                {
                    groupCode: 12345n,
                    ext: { inviteRobotMemberSwitch: 1, inviteRobotMemberExamine: 2 },
                },
            ],
        });
        await expect(FetchGroupExtInfo.invoke(sender, { groupId: 12345 })).resolves.toEqual({
            robotMemberSwitch: 1,
            robotMemberExamine: 2,
        });
    });

    it('treats omitted zeros as 0', async () => {
        const sender = makeSender({ items: [{ groupCode: 12345n, ext: {} }] });
        await expect(FetchGroupExtInfo.invoke(sender, { groupId: 12345 })).resolves.toEqual({
            robotMemberSwitch: 0,
            robotMemberExamine: 0,
        });
    });

    it('throws when the list is empty', async () => {
        const sender = makeSender({ items: [] });
        await expect(FetchGroupExtInfo.invoke(sender, { groupId: 12345 })).rejects.toThrow(
            /unable to read group robot-add option/,
        );
    });

    it('throws on a non-zero item result', async () => {
        const sender = makeSender({
            items: [{ groupCode: 12345n, resultCode: 5, ext: { inviteRobotMemberSwitch: 1 } }],
        });
        await expect(FetchGroupExtInfo.invoke(sender, { groupId: 12345 })).rejects.toThrow(
            /result=5/,
        );
    });
});