import { afterEach, describe, expect, it, vi } from 'vitest';
import { uploadQzoneImage, uploadQzoneImageFromSource } from '../../src/web/qzone';
import { RequestUtil } from '../../src/web/request-util';

const cookies = { p_skey: 'PSK', skey: 'SK', uin: 'o10000', p_uin: 'o10000' };
const expectedGtk = (() => {
    let h = 5381;

    for (const c of 'PSK') {
        h += (h << 5) + c.charCodeAt(0);
    }

    return (h & 0x7fffffff).toString();
})();

const successBody = `<script>frameElement.callback({
  "code": 0,
  "subcode": 0,
  "data": {
    "albumid": "12345",
    "lloc": "abc123",
    "url": "https://example.qzone.qq.com/image.jpg",
    "type": 22,
    "height": 800,
    "width": 600
  }
});</script>`;

describe('qzone / uploadQzoneImage', () => {
    afterEach(() => vi.restoreAllMocks());

    it('POSTs the upload form and returns richval + direct url', async () => {
        const spy = vi.spyOn(RequestUtil, 'HttpGetText').mockResolvedValue(successBody);

        const out = await uploadQzoneImage(cookies, '10000', 'AQID');

        expect(out).toEqual({
            richval: ',12345,abc123,abc123,22,800,600,,800,600',
            url: 'https://example.qzone.qq.com/image.jpg',
            albumid: '12345',
            lloc: 'abc123',
            type: 22,
            width: 600,
            height: 800,
        });

        const [url, method, body, headers] = spy.mock.calls[0]!;
        expect(url).toBe(
            `https://up.qzone.qq.com/cgi-bin/upload/cgi_upload_image?g_tk=${expectedGtk}`,
        );
        expect(method).toBe('POST');
        const h = headers as Record<string, string>;
        expect(h['Content-Type']).toBe('application/x-www-form-urlencoded');
        expect(h.Cookie).toContain('p_skey=PSK');
        expect(h.Cookie).toContain('skey=SK');

        const form = new URLSearchParams(body as string);
        expect(form.get('uin')).toBe('10000');
        expect(form.get('p_uin')).toBe('10000');
        expect(form.get('p_skey')).toBe('PSK');
        expect(form.get('base64')).toBe('1');
        expect(form.get('jsonhtml_callback')).toBe('callback');
        expect(form.get('picfile')).toBe('AQID');
        expect(form.get('qzreferrer')).toBe('https://user.qzone.qq.com/10000/main');
    });

    it('accepts base64:// data-URI sources and strips the prefix before upload', async () => {
        const spy = vi.spyOn(RequestUtil, 'HttpGetText').mockResolvedValue(successBody);

        await uploadQzoneImageFromSource(cookies, '10000', 'base64://data:image/png;base64,AQID');

        const form = new URLSearchParams(spy.mock.calls[0]![2] as string);
        expect(form.get('picfile')).toBe('AQID');
    });

    it('defaults optional image metadata to 0 when the upload succeeds without it', async () => {
        vi.spyOn(RequestUtil, 'HttpGetText').mockResolvedValue(
            'callback({"code":0,"data":{"albumid":"12345","lloc":"abc123","url":"https://example.qzone.qq.com/image.jpg"}});',
        );

        await expect(uploadQzoneImage(cookies, '10000', 'AQID')).resolves.toMatchObject({
            richval: ',12345,abc123,abc123,0,0,0,,0,0',
            type: 0,
            width: 0,
            height: 0,
        });
    });

    it('rejects invalid base64 before any request', async () => {
        const spy = vi.spyOn(RequestUtil, 'HttpGetText');

        await expect(uploadQzoneImage(cookies, '10000', 'not base64?')).rejects.toThrow(
            'valid base64',
        );
        expect(spy).not.toHaveBeenCalled();
    });

    it('throws on non-zero code or subcode from Qzone', async () => {
        const spy = vi.spyOn(RequestUtil, 'HttpGetText');

        spy.mockResolvedValueOnce('callback({"code":-1,"message":"upload failed"});');
        await expect(uploadQzoneImage(cookies, '10000', 'AQID')).rejects.toThrow('code=-1');

        spy.mockResolvedValueOnce('callback({"code":0,"subcode":-2,"message":"sub failed"});');
        await expect(uploadQzoneImage(cookies, '10000', 'AQID')).rejects.toThrow('subcode=-2');
    });

    it('throws when the success response lacks required upload fields', async () => {
        vi.spyOn(RequestUtil, 'HttpGetText').mockResolvedValue(
            'callback({"code":0,"data":{"albumid":"12345"}});',
        );

        await expect(uploadQzoneImage(cookies, '10000', 'AQID')).rejects.toThrow(
            '响应缺少必要字段',
        );
    });
});