import { type Data, type DataItem, type Route, ViewType } from '@/types';

import { art } from '@/utils/render';
import cache from '@/utils/cache';
import ofetch from '@/utils/ofetch';
import { parseDate } from '@/utils/parse-date';

import { type CheerioAPI, type Cheerio, load } from 'cheerio';
import type { Element } from 'domhandler';
import { type Context } from 'hono';
import path from 'node:path';

export const handler = async (ctx: Context): Promise<Data> => {
    const { category = 'newly' } = ctx.req.param();
    const limit: number = Number.parseInt(ctx.req.query('limit') ?? '30', 10);

    const baseUrl: string = 'https://www.199it.com';
    const targetUrl: string = new URL(category, baseUrl).href;

    const response = await ofetch(targetUrl);
    const $: CheerioAPI = load(response);
    const language = $('html').attr('lang') ?? 'zh-CN';

    let items: DataItem[] = [];

    items = $('article.newsplus')
        .slice(0, limit)
        .toArray()
        .map((el): Element => {
            const $el: Cheerio<Element> = $(el);

            const title: string = $el.find('h2.entry-title').text();
            const pubDateStr: string | undefined = $el.find('time.entry-date').attr('datetime');
            const linkUrl: string | undefined = $el.find('h2.entry-title a').attr('href');
            const categoryEls: Element[] = $el.find('ul.post-categories li:not(submenu-parent)').toArray();
            const categories: string[] = [...new Set(categoryEls.map((el) => $(el).text()).filter(Boolean))];
            const image: string | undefined = $el.find('img.attachment-post-thumbnail').attr('src');
            const upDatedStr: string | undefined = pubDateStr;

            const processedItem: DataItem = {
                title,
                pubDate: pubDateStr ? parseDate(pubDateStr) : undefined,
                link: linkUrl ? new URL(linkUrl, baseUrl).href : undefined,
                category: categories,
                image,
                banner: image,
                updated: upDatedStr ? parseDate(upDatedStr) : undefined,
                language,
            };

            return processedItem;
        });

    items = (
        await Promise.all(
            items.map((item) => {
                if (!item.link) {
                    return item;
                }

                return cache.tryGet(item.link, async (): Promise<DataItem> => {
                    const detailResponse = await ofetch(item.link);
                    const $$: CheerioAPI = load(detailResponse);

                    $$('div.entry-content img.alignnone').each((_, el) => {
                        const $el: Cheerio<Element> = $$(el);

                        $el.replaceWith(
                            art(path.join(__dirname, 'templates/description.art'), {
                                images: $el.attr('src')
                                    ? [
                                          {
                                              src: $el.attr('src'),
                                              width: $el.attr('width'),
                                              height: $el.attr('height'),
                                          },
                                      ]
                                    : undefined,
                            })
                        );
                    });

                    const title: string = $$('h1.entry-title').text();
                    const pubDateStr: string | undefined = $$('time.entry-date').attr('datetime');
                    const categoryEls: Element[] = $$('ul.post-categories li').toArray();
                    const categories: string[] = [...new Set(categoryEls.map((el) => $$(el).text()).filter(Boolean))];
                    const upDatedStr: string | undefined = pubDateStr;

                    let processedItem: DataItem = {
                        title,
                        pubDate: pubDateStr ? parseDate(pubDateStr) : item.pubDate,
                        category: categories,
                        updated: upDatedStr ? parseDate(upDatedStr) : item.updated,
                        language,
                    };

                    const extraLinkEls: Element[] = $$('ul.related_post li a').toArray();
                    const extraLinks = extraLinkEls
                        .map((extraLinkEl) => {
                            const $$extraLinkEl: Cheerio<Element> = $$(extraLinkEl);

                            return {
                                url: $$extraLinkEl.attr('href'),
                                type: 'related',
                                content_html: $$extraLinkEl.text(),
                            };
                        })
                        .filter((_): _ is { url: string; type: string; content_html: string } => true);

                    if (extraLinks) {
                        processedItem = {
                            ...processedItem,
                            _extra: {
                                links: extraLinks,
                            },
                        };
                    }

                    $$('ul.related_post').parent().remove();

                    const description: string | undefined = $$('div.entry-content').html();

                    processedItem = {
                        ...processedItem,
                        description,
                        content: {
                            html: description,
                            text: description,
                        },
                    };

                    return {
                        ...item,
                        ...processedItem,
                    };
                });
            })
        )
    ).filter((_): _ is DataItem => true);

    const title: string = $('title').text();

    return {
        title,
        description: $('meta[name="description"]').attr('content'),
        link: targetUrl,
        item: items,
        allowEmpty: true,
        image: $('h3.site-title img').attr('src'),
        author: title.split(/-/).pop()?.trim(),
        language,
        id: targetUrl,
    };
};

export const route: Route = {
    path: '/:category{.+}?',
    name: '资讯',
    url: '199it.com',
    maintainers: ['nczitzk'],
    handler,
    example: '/199it/newly',
    parameters: {
        category: {
            description: '分类，默认为 `newly`，即最新，可在对应分类页 URL 中找到',
            options: [
                {
                    label: '最新',
                    value: 'newly',
                },
                {
                    label: '报告',
                    value: 'archives/category/report',
                },
                {
                    label: '新兴产业',
                    value: 'archives/category/emerging',
                },
                {
                    label: '金融科技',
                    value: 'archives/category/fintech',
                },
                {
                    label: '共享经济',
                    value: 'archives/category/sharingeconomy',
                },
                {
                    label: '移动互联网',
                    value: 'archives/category/mobile-internet',
                },
                {
                    label: '电子商务',
                    value: 'archives/category/electronic-commerce',
                },
                {
                    label: '社交网络',
                    value: 'archives/category/social-network',
                },
                {
                    label: '网络广告',
                    value: 'archives/category/advertising',
                },
                {
                    label: '投资&amp;经济，互联网金融',
                    value: 'archives/category/economic-data',
                },
                {
                    label: '服务',
                    value: 'archives/category/service',
                },
                {
                    label: '网络服务行业',
                    value: 'archives/category/dataindustry',
                },
                {
                    label: '用户研究',
                    value: 'archives/category/internet-users',
                },
            ],
        },
    },
    description: `:::tip
若订阅 [研究报告](https://www.199it.com/archives/category/report)，网址为 \`https://www.199it.com/archives/category/report\`，请截取 \`https://www.199it.com/archives/category/report\` 到末尾的部分 \`archives/category/report\` 作为 \`category\` 参数填入，此时目标路由为 [\`/199it/archives/category/report\`](https://rsshub.app/199it/archives/category/report)。
:::

<details>
  <summary>更多分类</summary>

| 分类                                                                              | ID                                                                                                      |
| --------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- |
| [报告](http://www.199it.com/archives/category/report)                             | [archives/category/report](https://rsshub.app/199it/archives/category/report)                           |
| [新兴产业](http://www.199it.com/archives/category/emerging)                       | [archives/category/emerging](https://rsshub.app/199it/archives/category/emerging)                       |
| [金融科技](http://www.199it.com/archives/category/fintech)                        | [archives/category/fintech](https://rsshub.app/199it/archives/category/fintech)                         |
| [共享经济](http://www.199it.com/archives/category/sharingeconomy)                 | [archives/category/sharingeconomy](https://rsshub.app/199it/archives/category/sharingeconomy)           |
| [移动互联网](http://www.199it.com/archives/category/mobile-internet)              | [archives/category/mobile-internet](https://rsshub.app/199it/archives/category/mobile-internet)         |
| [电子商务](http://www.199it.com/archives/category/electronic-commerce)            | [archives/category/electronic-commerce](https://rsshub.app/199it/archives/category/electronic-commerce) |
| [社交网络](http://www.199it.com/archives/category/social-network)                 | [archives/category/social-network](https://rsshub.app/199it/archives/category/social-network)           |
| [网络广告](http://www.199it.com/archives/category/advertising)                    | [archives/category/advertising](https://rsshub.app/199it/archives/category/advertising)                 |
| [投资&amp;经济，互联网金融](http://www.199it.com/archives/category/economic-data) | [archives/category/economic-data](https://rsshub.app/199it/archives/category/economic-data)             |
| [服务](http://www.199it.com/archives/category/service)                            | [archives/category/service](https://rsshub.app/199it/archives/category/service)                         |
| [网络服务行业](http://www.199it.com/archives/category/dataindustry)               | [archives/category/dataindustry](https://rsshub.app/199it/archives/category/dataindustry)               |
| [用户研究](http://www.199it.com/archives/category/internet-users)                 | [archives/category/internet-users](https://rsshub.app/199it/archives/category/internet-users)           |

</details>
`,
    categories: ['new-media'],
    features: {
        requireConfig: false,
        requirePuppeteer: false,
        antiCrawler: false,
        supportRadar: true,
        supportBT: false,
        supportPodcast: false,
        supportScihub: false,
    },
    radar: [
        {
            source: ['www.199it.com/:category'],
            target: (params) => {
                const category: string = params.category;

                return `/199it${category ? `/${category}` : ''}`;
            },
        },
        {
            title: '最新',
            source: ['www.199it.com/newly'],
            target: '/newly',
        },
        {
            title: '报告',
            source: ['www.199it.com/archives/category/report'],
            target: '/archives/category/report',
        },
        {
            title: '新兴产业',
            source: ['www.199it.com/archives/category/emerging'],
            target: '/archives/category/emerging',
        },
        {
            title: '金融科技',
            source: ['www.199it.com/archives/category/fintech'],
            target: '/archives/category/fintech',
        },
        {
            title: '共享经济',
            source: ['www.199it.com/archives/category/sharingeconomy'],
            target: '/archives/category/sharingeconomy',
        },
        {
            title: '移动互联网',
            source: ['www.199it.com/archives/category/mobile-internet'],
            target: '/archives/category/mobile-internet',
        },
        {
            title: '电子商务',
            source: ['www.199it.com/archives/category/electronic-commerce'],
            target: '/archives/category/electronic-commerce',
        },
        {
            title: '社交网络',
            source: ['www.199it.com/archives/category/social-network'],
            target: '/archives/category/social-network',
        },
        {
            title: '网络广告',
            source: ['www.199it.com/archives/category/advertising'],
            target: '/archives/category/advertising',
        },
        {
            title: '投资&amp;经济，互联网金融',
            source: ['www.199it.com/archives/category/economic-data'],
            target: '/archives/category/economic-data',
        },
        {
            title: '服务',
            source: ['www.199it.com/archives/category/service'],
            target: '/archives/category/service',
        },
        {
            title: '网络服务行业',
            source: ['www.199it.com/archives/category/dataindustry'],
            target: '/archives/category/dataindustry',
        },
        {
            title: '用户研究',
            source: ['www.199it.com/archives/category/internet-users'],
            target: '/archives/category/internet-users',
        },
    ],
    view: ViewType.Articles,
};