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 { Oidb0x7edReq, Oidb0x7edResp } from '@snowluma/proto-defs/oidb-actions/base';
import type { SendPacketResult } from '@snowluma/common/packet-sender';

import { GetLike } from '../../../src/oidb-services/profile/get-like';

function makeDeps(
    opts: {
        cachedSelfUid?: string | null;
        resolveUserUid?: (uin: number) => Promise<string>;
        findUinByUid?: (uid: string) => number | null;
        resolveUin?: (uid: string) => Promise<number | null>;
        responseBody?: Oidb0x7edResp;
    } = {},
) {
    const responseData =
        opts.responseBody !== undefined
            ? Buffer.from(protobuf_encode<OidbBase<Oidb0x7edResp>>({ body: opts.responseBody }))
            : Buffer.alloc(0);
    const r: SendPacketResult = {
        success: true,
        gotResponse: true,
        errorCode: 0,
        errorMessage: '',
        responseData,
    };
    return {
        sendRawPacket: vi.fn(async () => r),
        identity: {
            uin: '10001',
            selfUid: opts.cachedSelfUid ?? null,
            findUinByUid: vi.fn(opts.findUinByUid ?? (() => null)),
            resolveUin: vi.fn(opts.resolveUin ?? (async () => null)),
        } as any,
        resolveUserUid: vi.fn(opts.resolveUserUid ?? (async (uin: number) => `uid-of-${uin}`)),
    };
}

describe('GetLike namespace', () => {
    it('uses the self and other-user subcommands selected by the native client', () => {
        const deps = makeDeps({ cachedSelfUid: 'self-uid' });
        expect(GetLike.command).toBe(0x7ed);
        expect(GetLike.resolveSubCommand({}, deps)).toBe(13);
        expect(GetLike.resolveSubCommand({ userId: 0 }, deps)).toBe(13);
        expect(GetLike.resolveSubCommand({ userId: 10001 }, deps)).toBe(13);
        expect(GetLike.resolveSubCommand({ userId: 20002 }, deps)).toBe(12);
    });

    describe('invoke (target uid resolution)', () => {
        it('uses cached self uid when userId is omitted', async () => {
            const deps = makeDeps({
                cachedSelfUid: 'cached-self',
                responseBody: {
                    userLikeInfos: [
                        { uid: 'cached-self', time: 0, favoriteInfo: {}, voteInfo: {} },
                    ],
                },
            });
            await GetLike.invoke(deps, {});
            expect(deps.resolveUserUid).not.toHaveBeenCalled();
            const [serviceCmd, bytes] = deps.sendRawPacket.mock.calls[0]!;
            expect(serviceCmd).toBe('OidbSvcTrpcTcp.0x7ed_13');
            const env = protobuf_decode<OidbBase<Oidb0x7edReq>>(bytes);
            expect(env.body?.targetUids).toEqual(['cached-self']);
        });

        it('falls back to resolveUserUid for self when cache is empty', async () => {
            const deps = makeDeps({
                cachedSelfUid: null,
                resolveUserUid: vi.fn(async () => 'fresh-self') as any,
                responseBody: {
                    userLikeInfos: [{ uid: 'fresh-self', time: 0, favoriteInfo: {}, voteInfo: {} }],
                },
            });
            await GetLike.invoke(deps, {});
            expect(deps.resolveUserUid).toHaveBeenCalledWith(10001);
        });

        it('resolves other users via resolveUserUid', async () => {
            const deps = makeDeps({
                responseBody: {
                    userLikeInfos: [
                        { uid: 'uid-of-99999', time: 0, favoriteInfo: {}, voteInfo: {} },
                    ],
                },
            });
            await GetLike.invoke(deps, { userId: 99999 });
            expect(deps.resolveUserUid).toHaveBeenCalledWith(99999);
            expect(deps.sendRawPacket.mock.calls[0]![0]).toBe('OidbSvcTrpcTcp.0x7ed_12');
        });

        it('treats an explicit self uin as a self query', async () => {
            const deps = makeDeps({
                cachedSelfUid: 'cached-self',
                responseBody: { userLikeInfos: [{ uid: 'cached-self', time: 0 }] },
            });
            await GetLike.invoke(deps, { userId: 10001 });
            expect(deps.resolveUserUid).not.toHaveBeenCalled();
            expect(deps.sendRawPacket.mock.calls[0]![0]).toBe('OidbSvcTrpcTcp.0x7ed_13');
        });

        it('throws when self uin is invalid and cache is empty', async () => {
            const deps = makeDeps({ cachedSelfUid: null });
            deps.identity.uin = 'invalid';
            await expect(GetLike.invoke(deps, {})).rejects.toThrow('self uid is unavailable');
        });
    });

    describe('serialize', () => {
        it('requests the profile-backed vote list', async () => {
            const deps = makeDeps({
                responseBody: {
                    userLikeInfos: [{ uid: 'u', time: 0, favoriteInfo: {}, voteInfo: {} }],
                },
            });
            await GetLike.invoke(deps, { userId: 1 });
            const [, bytes] = deps.sendRawPacket.mock.calls[0]!;
            const env = protobuf_decode<OidbBase<Oidb0x7edReq>>(bytes);
            expect(env.body?.basic).toBe(1);
            expect(env.body?.vote).toBe(1);
            expect(env.body?.favorite ?? 0).toBe(0);
            expect(env.body?.userProfile).toBe(1);
        });

        it('threads start / limit through to the request', async () => {
            const deps = makeDeps({
                responseBody: {
                    userLikeInfos: [{ uid: 'u', time: 0, favoriteInfo: {}, voteInfo: {} }],
                },
            });
            await GetLike.invoke(deps, { userId: 1, start: 5, limit: 50 });
            const [, bytes] = deps.sendRawPacket.mock.calls[0]!;
            const env = protobuf_decode<OidbBase<Oidb0x7edReq>>(bytes);
            expect(env.body?.start).toBe(5);
            expect(env.body?.limit).toBe(50);
        });

        it('defaults start=0 / limit=10', async () => {
            const deps = makeDeps({
                responseBody: {
                    userLikeInfos: [{ uid: 'u', time: 0, favoriteInfo: {}, voteInfo: {} }],
                },
            });
            await GetLike.invoke(deps, { userId: 1 });
            const [, bytes] = deps.sendRawPacket.mock.calls[0]!;
            const env = protobuf_decode<OidbBase<Oidb0x7edReq>>(bytes);
            expect(env.body?.start ?? 0).toBe(0);
            expect(env.body?.limit).toBe(10);
        });
    });

    describe('deserialize', () => {
        it('shapes favorite + vote info with the expected key names', () => {
            const deps = makeDeps({
                findUinByUid: (uid) => (uid === 'vote-user' ? 12345 : null),
            });
            const out = GetLike.deserialize(deps, {
                userLikeInfos: [
                    {
                        uid: 'u',
                        time: 1700000000,
                        favoriteInfo: {
                            totalCount: 5,
                            lastTime: 1,
                            todayCount: 1,
                            userInfos: [{ uid: 'favorite-user', nick: '收藏者', count: 3 }],
                        },
                        voteInfo: {
                            totalCount: 7,
                            newCount: 2,
                            newNearbyCount: 1,
                            lastVisitTime: 2,
                            userInfos: [
                                {
                                    uid: 'vote-user',
                                    src: 4,
                                    latestTime: 3,
                                    count: 2,
                                    giftCount: 1,
                                    customId: 5,
                                    lastCharged: 6,
                                    availableCount: 7,
                                    todayVotedCount: 8,
                                    nick: '点赞者',
                                    gender: 1,
                                    age: 20,
                                    isFriend: true,
                                    isVip: true,
                                    isSvip: false,
                                },
                            ],
                        },
                    },
                ],
            });
            expect(out.uid).toBe('u');
            expect(out.time).toBe(1700000000);
            expect(out.favoriteInfo).toEqual({
                total_count: 5,
                last_time: 1,
                today_count: 1,
                userInfos: [
                    expect.objectContaining({ uid: 'favorite-user', nick: '收藏者', count: 3 }),
                ],
            });
            expect(out.voteInfo).toEqual({
                total_count: 7,
                new_count: 2,
                new_nearby_count: 1,
                last_visit_time: 2,
                userInfos: [
                    expect.objectContaining({
                        uid: 'vote-user',
                        uin: 12345,
                        src: 4,
                        latestTime: 3,
                        count: 2,
                        giftCount: 1,
                        customId: 5,
                        lastCharged: 6,
                        bAvailableCnt: 7,
                        bTodayVotedCnt: 8,
                        nick: '点赞者',
                        gender: 1,
                        age: 20,
                        isFriend: true,
                        isvip: true,
                        isSvip: false,
                    }),
                ],
            });
        });

        it('throws when there are no userLikeInfos', () => {
            expect(() => GetLike.deserialize({} as any, {})).toThrow('get profile like info empty');
            expect(() => GetLike.deserialize({} as any, { userLikeInfos: [] })).toThrow(
                'get profile like info empty',
            );
        });

        it('throws when a returned user item has no uid', () => {
            expect(() =>
                GetLike.deserialize(makeDeps(), {
                    userLikeInfos: [{ uid: 'u', voteInfo: { userInfos: [{ nick: 'broken' }] } }],
                }),
            ).toThrow('get profile like user uid missing');
        });

        it('defaults all count fields to 0 when omitted', () => {
            const out = GetLike.deserialize(makeDeps(), { userLikeInfos: [{ uid: 'u', time: 0 }] });
            expect(out.favoriteInfo.total_count).toBe(0);
            expect(out.voteInfo.total_count).toBe(0);
        });
    });

    describe('invoke (inbound UIN fill)', () => {
        it('fills leftover uin=0 rows through Identity.resolveUin once per uid', async () => {
            const deps = makeDeps({
                cachedSelfUid: 'self-uid',
                findUinByUid: () => null,
                resolveUin: async (uid) => (uid === 'shared-uid' ? 30003 : null),
                responseBody: {
                    userLikeInfos: [
                        {
                            uid: 'self-uid',
                            favoriteInfo: { userInfos: [{ uid: 'shared-uid', nick: '收藏' }] },
                            voteInfo: {
                                userInfos: [
                                    { uid: 'shared-uid', nick: '点赞' },
                                    { uid: 'miss-uid' },
                                ],
                            },
                        },
                    ],
                },
            });

            const out = await GetLike.invoke(deps, {});

            expect(deps.identity.resolveUin).toHaveBeenCalledTimes(2);
            expect(deps.identity.resolveUin).toHaveBeenCalledWith('shared-uid');
            expect(deps.identity.resolveUin).toHaveBeenCalledWith('miss-uid');
            expect(out.favoriteInfo.userInfos[0]?.uin).toBe(30003);
            expect(out.voteInfo.userInfos[0]?.uin).toBe(30003);
            expect(out.voteInfo.userInfos[1]?.uin).toBe(0);
        });

        it('does not call resolveUin when deserialize already filled the cache hit', async () => {
            const deps = makeDeps({
                cachedSelfUid: 'self-uid',
                findUinByUid: (uid) => (uid === 'cached-uid' ? 20002 : null),
                responseBody: {
                    userLikeInfos: [
                        {
                            uid: 'self-uid',
                            voteInfo: { userInfos: [{ uid: 'cached-uid', nick: '点赞者' }] },
                        },
                    ],
                },
            });

            const out = await GetLike.invoke(deps, {});

            expect(deps.identity.resolveUin).not.toHaveBeenCalled();
            expect(out.voteInfo.userInfos[0]?.uin).toBe(20002);
        });
    });
});