import { Route } from '@/types';
import cache from '@/utils/cache';
import ofetch from '@/utils/ofetch';
import { load } from 'cheerio';

import { baseUrl, apiHost, getTagsData, parseEventDetail, parseItem } from './utils';
import InvalidParameterError from '@/errors/types/invalid-parameter';

export const route: Route = {
    path: ['/hub/:tagId?/:sort?/:range?'],
    categories: ['programming'],
    example: '/baai/hub',
    parameters: {
        tagId: '社群 ID，可在 [社群页](https://hub.baai.ac.cn/taglist) 或 URL 中找到',
        sort: '排序，见下表，默认为 `new`',
        range: '时间跨度，仅在排序 `readCnt` 时有效',
    },
    description: `排序

| 最新 | 最热    |
| ---- | ------- |
| new  | readCnt |

时间跨度

| 3 天 | 本周 | 本月 |
| ---- | ---- | ---- |
| 3    | 7    | 30   |`,
    radar: [
        {
            source: ['baai.ac.cn/'],
            target: (_params, url) => {
                const searchParams = new URL(url).searchParams;
                const tagId = searchParams.get('tag_id');
                const sort = searchParams.get('sort');
                const range = searchParams.get('time_range');
                return `/baai/hub${tagId ? `/${tagId}` : ''}${sort ? `/${sort}` : ''}${range ? `/${range}` : ''}`;
            },
        },
    ],
    name: '智源社区',
    maintainers: ['TonyRL'],
    handler,
};

async function handler(ctx) {
    const { tagId = '', sort = 'new', range } = ctx.req.param();

    let title, description, brief, iconUrl;
    if (tagId) {
        const tagsData = await getTagsData();

        const tag = (tagsData as Record<string, string>[]).find((tag) => tag.id === tagId);
        if (tag) {
            title = tag.title;
            description = tag.description;
            brief = tag.brief;
            iconUrl = tag.iconUrl;
        } else {
            throw new InvalidParameterError('Tag not found');
        }
    }

    const response = await ofetch(`${apiHost}/api/v1/story/list`, {
        method: 'POST',
        query: {
            page: 1,
            sort,
            tag_id: tagId,
            time_range: range,
        },
    });

    const list = response.data.map((item) => parseItem(item));

    const items = await Promise.all(
        list.map((item) =>
            cache.tryGet(item.link, async () => {
                if (item.eventId) {
                    item.description = await parseEventDetail(item);
                } else {
                    const response = await ofetch(item.link);
                    const $ = load(response);
                    item.description = item.is_event ? $('div.box2').html() : $('.post-content').html();
                }
                return item;
            })
        )
    );

    return {
        title: `${title ? `${title} - ` : ''}${description ? `${description} - ` : ''}智源社区`,
        description: brief,
        link: `${baseUrl}/?${tagId ? `tag_id=${tagId}&` : ''}sort=${sort}${range ? `&time_range=${range}` : ''}`,
        image: iconUrl,
        item: items,
    };
}