import { createHash } from 'crypto';
import { afterEach, describe, expect, it, vi } from 'vitest';

import { uploadImageToGroupAlbum, uploadVideoToGroupAlbum } from '../../src/web/group-album';
import { RequestUtil } from '../../src/web/request-util';

const MP4_BASE64 = 'AAAAGGZ0eXBtcDQyAAAAAG1wNDJpc29t';
const MP4_SOURCE = `base64://${MP4_BASE64}`;
const MP4_BYTES = Buffer.from(MP4_BASE64, 'base64');
const JPEG_SOURCE = 'base64:///9j/4AAQSkZJRgABAQAAAQABAAD/2wAAAA==';
const COVER = Buffer.from('album-cover');

function controlReq(body: unknown): Record<string, unknown> {
    const req = (body as { control_req: Array<Record<string, unknown>> }).control_req[0];
    expect(req).toBeTruthy();
    return req;
}

describe('group album image upload', () => {
    afterEach(() => {
        vi.restoreAllMocks();
        vi.unstubAllGlobals();
    });

    it('rejects an MP4 before starting a remote upload', async () => {
        const request = vi
            .spyOn(RequestUtil, 'HttpGetJson')
            .mockRejectedValue(new Error('unexpected remote upload'));
        const fetch = vi.fn();
        vi.stubGlobal('fetch', fetch);

        await expect(
            uploadImageToGroupAlbum(
                { skey: 'SK', p_skey: 'PSK' },
                '12345',
                'album-id',
                'album-name',
                MP4_SOURCE,
                '10000',
            ),
        ).rejects.toThrow('群相册上传仅支持 JPEG、PNG、GIF、WebP 或 BMP 图片');

        expect(request).not.toHaveBeenCalled();
        expect(fetch).not.toHaveBeenCalled();
    });
});

describe('group album video upload', () => {
    afterEach(() => {
        vi.restoreAllMocks();
        vi.unstubAllGlobals();
    });

    it('rejects a JPEG before starting a remote upload', async () => {
        const request = vi
            .spyOn(RequestUtil, 'HttpGetJson')
            .mockRejectedValue(new Error('unexpected remote upload'));
        const fetch = vi.fn();
        vi.stubGlobal('fetch', fetch);
        const probe = vi.fn();

        await expect(
            uploadVideoToGroupAlbum(
                { skey: 'SK', p_skey: 'PSK' },
                '12345',
                'album-id',
                'album-name',
                JPEG_SOURCE,
                '10000',
                { probe },
            ),
        ).rejects.toThrow('群相册视频上传仅支持 MP4 等 ISO BMFF 视频');

        expect(request).not.toHaveBeenCalled();
        expect(fetch).not.toHaveBeenCalled();
        expect(probe).not.toHaveBeenCalled();
    });

    it('uploads the video with SHA1 then the cover bound to the returned vid', async () => {
        const sha1 = createHash('sha1').update(MP4_BYTES).digest('hex');
        const coverMd5 = createHash('md5').update(COVER).digest('hex');
        const bodies: unknown[] = [];
        const request = vi
            .spyOn(RequestUtil, 'HttpGetJson')
            .mockImplementation(async (_url, _method, body) => {
                bodies.push(body);
                const appid = controlReq(body).appid;

                if (appid === 'video_qun') {
                    return {
                        ret: 0,
                        msg: '',
                        data: { session: 'video-session', slice_size: 16384 },
                    };
                }

                return { ret: 0, msg: '', data: { session: 'cover-session', slice_size: 16384 } };
            });

        const fetch = vi.fn(async (url: string) => ({
            ok: true,
            json: async () => {
                if (url.includes('FileUploadVideo')) {
                    return { ret: 0, msg: '', data: { biz: { sVid: 'VID123' } } };
                }

                return {
                    ret: 0,
                    msg: '',
                    data: { biz: { sPhotoID: 'PID', sBURL: 'https://example.test/v.jpg' } },
                };
            },
        }));
        vi.stubGlobal('fetch', fetch);

        const result = await uploadVideoToGroupAlbum(
            { skey: 'SK', p_skey: 'PSK' },
            '12345',
            'album-id',
            'album-name',
            MP4_SOURCE,
            '10000',
            {
                now: () => 1700000000,
                probe: async () => ({ duration: 6.077, cover: new Uint8Array(COVER) }),
            },
        );

        expect(result).toEqual({ id: 'VID123' });
        expect(request).toHaveBeenCalledTimes(2);
        expect(String(request.mock.calls[0]![0])).toContain(`FileBatchControl/${sha1}`);
        expect(String(request.mock.calls[1]![0])).toContain(`FileBatchControl/${coverMd5}`);

        const videoReq = controlReq(bodies[0]);
        expect(videoReq).toMatchObject({
            appid: 'video_qun',
            checksum: sha1,
            check_type: 1,
            cmd: 'FileUploadVideo',
            env: { refer: 'qzone', deviceInfo: 'h5' },
        });
        expect(videoReq.biz_req).toMatchObject({
            iUploadType: 3,
            iPlayTime: 6077,
            iIsNew: 111,
            sTitle: 'video.mp4',
            extend_info: {
                video_type: '3',
                domainid: '5',
                photo_num: '0',
                video_num: '1',
                qun_id: '12345',
            },
        });

        const coverReq = controlReq(bodies[1]);
        expect(coverReq).toMatchObject({
            appid: 'qun',
            checksum: coverMd5,
            check_type: 0,
            cmd: '',
            env: { refer: 'huodong', deviceInfo: 'h5' },
        });
        expect(coverReq.biz_req).toMatchObject({
            iUploadType: 2,
            iBatchID: 1700000000,
            sAlbumID: 'album-id',
            sAlbumName: 'album-name',
            mutliPicInfo: { iBatUploadNum: 1 },
            stExtendInfo: { mapParams: { vid: 'VID123', photo_num: '0', video_num: '1' } },
            stExternalMapExt: { is_client_upload_cover: '1', is_pic_video_mix_feeds: '1' },
        });

        const sliceUrls = fetch.mock.calls.map((call) => String(call[0]));
        expect(sliceUrls.some((url) => url.includes('/sliceUpload/FileUploadVideo?'))).toBe(true);
        expect(sliceUrls.some((url) => url.includes('/sliceUpload/FileUpload?'))).toBe(true);
    });

    it('fails when the video slices do not return a vid', async () => {
        vi.spyOn(RequestUtil, 'HttpGetJson').mockResolvedValue({
            ret: 0,
            msg: '',
            data: { session: 'video-session', slice_size: 16384 },
        });
        const fetch = vi.fn(async () => ({
            ok: true,
            json: async () => ({ ret: 0, msg: '', data: { biz: {} } }),
        }));
        vi.stubGlobal('fetch', fetch);

        await expect(
            uploadVideoToGroupAlbum(
                { skey: 'SK', p_skey: 'PSK' },
                '12345',
                'album-id',
                'album-name',
                MP4_SOURCE,
                '10000',
                {
                    now: () => 1700000000,
                    probe: async () => ({ duration: 6, cover: new Uint8Array(COVER) }),
                },
            ),
        ).rejects.toThrow('视频上传未返回视频 id');

        expect(RequestUtil.HttpGetJson).toHaveBeenCalledTimes(1);
    });
});