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

import { PublishGroupFile } from '../../../src/oidb-services/group-file/publish-group-file';

function makeDeps() {
    const r: SendPacketResult = {
        success: true,
        gotResponse: true,
        errorCode: 0,
        errorMessage: '',
        responseData: Buffer.alloc(0),
    };
    return { sendRawPacket: vi.fn(async () => r) };
}

describe('PublishGroupFile namespace', () => {
    it('declares 0x6D9_4', () => {
        expect(PublishGroupFile.command).toBe(0x6d9);
        expect(PublishGroupFile.subCommand).toBe(4);
    });

    it('routes to 0x6d9_4 with busiType=102, type=2, field5=true', async () => {
        const deps = makeDeps();
        await PublishGroupFile.invoke(deps, { groupId: 12345, fileId: 'fid' });
        const [wire, bytes] = deps.sendRawPacket.mock.calls[0]!;
        expect(wire).toBe('OidbSvcTrpcTcp.0x6d9_4');
        const env = protobuf_decode<OidbBase<OidbGroupSendFileReq>>(bytes);
        expect(env.body?.body).toMatchObject({
            groupUin: 12345,
            type: 2,
            info: expect.objectContaining({ busiType: 102, fileId: 'fid', field5: true }),
        });
    });

    it('emits a non-zero `info.field3` random discriminator', async () => {
        // Lagrange-V2 sets this to `Random.Shared.Next()`; our serialize uses
        // Math.random() — both produce a 31-bit unsigned int, never 0.
        const deps = makeDeps();
        await PublishGroupFile.invoke(deps, { groupId: 1, fileId: 'f' });
        const env = protobuf_decode<OidbBase<OidbGroupSendFileReq>>(
            deps.sendRawPacket.mock.calls[0]![1],
        );
        const field3 = env.body?.body?.info?.field3 ?? 0;
        expect(typeof field3).toBe('number');
    });
});