import { Route } from '@/types';
import cache from '@/utils/cache';
import got from '@/utils/got';
import { load } from 'cheerio';
import { parseDate } from '@/utils/parse-date';
import timezone from '@/utils/timezone';

export const route: Route = {
    path: '/novel/chapter/:id',
    categories: ['reading'],
    example: '/sfacg/novel/chapter/672431',
    parameters: { id: '小说 id, 可在对应小说页 URL 中找到' },
    features: {
        requireConfig: false,
        requirePuppeteer: false,
        antiCrawler: false,
        supportBT: false,
        supportPodcast: false,
        supportScihub: false,
    },
    radar: [
        {
            source: ['book.sfacg.com/Novel/:id/*'],
        },
    ],
    name: '章节',
    maintainers: ['keocheung'],
    handler,
};

async function handler(ctx) {
    const id = ctx.req.param('id');
    const limit = Number.parseInt(ctx.req.query('limit')) || 20;

    const baseUrl = 'https://book.sfacg.com';

    const { data: response } = await got(`${baseUrl}/Novel/${id}/MainIndex/`);
    const $ = load(response);

    const list = $('div.catalog-list ul li a')
        .slice(-limit)
        .toArray()
        .map((item) => {
            item = $(item);
            return {
                title: item.attr('title'),
                link: `${baseUrl}${item.attr('href')}`,
            };
        });
    const items = await Promise.all(
        list.map((item) =>
            cache.tryGet(item.link, async () => {
                const { data: response } = await got(item.link);
                const $ = load(response);

                item.description = $('div.article-content').html();

                const rawDate = $('div.article-desc span').eq(1).text();
                item.pubDate = timezone(parseDate(rawDate.replace('更新时间：', '')), +8);

                return item;
            })
        )
    );

    const { data: intro } = await got(`${baseUrl}/Novel/${id}/`);
    const $i = load(intro);

    return {
        title: `SF轻小说 ${$('h1.story-title').text()}`,
        link: `${baseUrl}/Novel/${id}`,
        description: $i('p.introduce').text(),
        image: $i('div.summary-pic img').attr('src').replace('http://', 'https://'),
        item: items,
    };
}