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

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';

export const handler = async (ctx: Context): Promise<Data> => {
    const { category = 'ywgg/tzgg' } = ctx.req.param();
    const limit: number = Number.parseInt(ctx.req.query('limit') ?? '15', 10);

    const baseUrl: string = 'https://www.cccmc.org.cn';
    const targetUrl: string = new URL(category.endsWith('/') ? category : `${category}/`, baseUrl).href;

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

    let items: DataItem[] = [];

    const regex: RegExp = /\{url:'(.*)',title:'(.*)',time:'(.*)'\},/g;

    items =
        response
            .match(regex)
            ?.slice(0, limit)
            .map((item): DataItem => {
                const matches = item.match(/'(.*?)'/);

                const title: string = matches?.[2] ?? '';
                const pubDateStr: string | undefined = matches?.[3];
                const linkUrl: string | undefined = matches?.[1];
                const upDatedStr: string | undefined = pubDateStr;

                const processedItem: DataItem = {
                    title,
                    pubDate: pubDateStr ? parseDate(pubDateStr) : undefined,
                    link: linkUrl ? new URL(linkUrl, baseUrl).href : undefined,
                    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);

                    const title: string = $$('div.title').text();
                    const description: string = $$('div#article-content').html() ?? '';
                    const pubDateStr: string | undefined = $$('span.time').text().split(/：/).pop();
                    const authorEls: Element[] = $$('span.form, span.from').toArray();
                    const authors: DataItem['author'] = authorEls.map((authorEl) => {
                        const $$authorEl: Cheerio<Element> = $$(authorEl);

                        return {
                            name: $$authorEl.text().split(/：/).pop() ?? $$authorEl.text(),
                        };
                    });
                    const upDatedStr: string | undefined = pubDateStr;

                    const processedItem: DataItem = {
                        title,
                        description,
                        pubDate: pubDateStr ? parseDate(pubDateStr) : item.pubDate,
                        author: authors,
                        content: {
                            html: description,
                            text: description,
                        },
                        updated: upDatedStr ? parseDate(upDatedStr) : item.updated,
                        language,
                    };

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

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

    return {
        title,
        description: title.split(/-/)[0].trim(),
        link: targetUrl,
        item: items,
        allowEmpty: true,
        image: $('img.logo').attr('src'),
        author: title.split(/-/)?.pop()?.trim(),
        language,
        id: targetUrl,
    };
};

export const route: Route = {
    path: '/:category{.+}?',
    name: '通用',
    url: 'www.cccmc.org.cn',
    maintainers: ['nczitzk'],
    handler,
    example: '/cccmc/ywgg/tzgg',
    parameters: {
        category: '分类，默认为 `ywgg/tzgg`，即通知公告，可在对应分类页 URL 中找到, Category, `ywgg/tzgg`，即通知公告  by default',
    },
    description: `:::tip
若订阅 [综合政策](https://www.cccmc.org.cn/zcfg/zhzc/)，网址为 \`https://www.cccmc.org.cn/zcfg/zhzc/\`，请截取 \`https://www.cccmc.org.cn/\` 到末尾的部分 \`zcfg/zhzc\` 作为 \`category\` 参数填入，此时目标路由为 [\`/cccmc/zcfg/zhzc\`](https://rsshub.app/cccmc/zcfg/zhzc)。
:::

<details>
<summary>更多分类</summary>

#### [会员之家](https://www.cccmc.org.cn/hyzj)

| [会员之声](https://www.cccmc.org.cn/hyzj/hyzs/) | [会员动态](https://www.cccmc.org.cn/hyzj/hydt/) | [会员推介](https://www.cccmc.org.cn/hyzj/hytj/) |
| ----------------------------------------------- | ----------------------------------------------- | ----------------------------------------------- |
| [hyzj/hyzs](https://rsshub.app/cccmc/hyzj/hyzs) | [hyzj/hydt](https://rsshub.app/cccmc/hyzj/hydt) | [hyzj/hytj](https://rsshub.app/cccmc/hyzj/hytj) |

#### [政策法规](https://www.cccmc.org.cn/zcfg)

| [综合政策](https://www.cccmc.org.cn/zcfg/zhzc/) | [国内贸易](https://www.cccmc.org.cn/zcfg/gnmy/) | [对外贸易](https://www.cccmc.org.cn/zcfg/dwmy/) | [投资合作](https://www.cccmc.org.cn/zcfg/tzhz/) |
| ----------------------------------------------- | ----------------------------------------------- | ----------------------------------------------- | ----------------------------------------------- |
| [zcfg/zhzc](https://rsshub.app/cccmc/zcfg/zhzc) | [zcfg/gnmy](https://rsshub.app/cccmc/zcfg/gnmy) | [zcfg/dwmy](https://rsshub.app/cccmc/zcfg/dwmy) | [zcfg/tzhz](https://rsshub.app/cccmc/zcfg/tzhz) |

#### [行业资讯](https://www.cccmc.org.cn/hyzx)

| [统计分析](https://www.cccmc.org.cn/hyzx/tjfx/) | [石油化工](https://www.cccmc.org.cn/hyzx/syhg/) | [金属矿产](https://www.cccmc.org.cn/hyzx/jskc/) | [五金建材](https://www.cccmc.org.cn/hyzx/wjjc/) |
| ----------------------------------------------- | ----------------------------------------------- | ----------------------------------------------- | ----------------------------------------------- |
| [hyzx/tjfx](https://rsshub.app/cccmc/hyzx/tjfx) | [hyzx/syhg](https://rsshub.app/cccmc/hyzx/syhg) | [hyzx/jskc](https://rsshub.app/cccmc/hyzx/jskc) | [hyzx/wjjc](https://rsshub.app/cccmc/hyzx/wjjc) |

#### [商业机会](https://www.cccmc.org.cn/syjh/)+

| [供应信息](https://www.cccmc.org.cn/syjh/gyxx/) | [需求信息](https://www.cccmc.org.cn/syjh/xqxx/) | [合作信息](https://www.cccmc.org.cn/syjh/hzxx/) |
| ----------------------------------------------- | ----------------------------------------------- | ----------------------------------------------- |
| [syjh/gyxx](https://rsshub.app/cccmc/syjh/gyxx) | [syjh/xqxx](https://rsshub.app/cccmc/syjh/xqxx) | [syjh/hzxx](https://rsshub.app/cccmc/syjh/hzxx) |

#### [商会党建](https://www.cccmc.org.cn/shdj)

| [党群动态](https://www.cccmc.org.cn/shdj/dqdt/) | [党内法规](https://www.cccmc.org.cn/shdj/dnfg/) | [青年工作](https://www.cccmc.org.cn/shdj/qngz/) |
| ----------------------------------------------- | ----------------------------------------------- | ----------------------------------------------- |
| [shdj/dqdt](https://rsshub.app/cccmc/shdj/dqdt) | [shdj/dnfg](https://rsshub.app/cccmc/shdj/dnfg) | [shdj/qngz](https://rsshub.app/cccmc/shdj/qngz) |
</details>
`,
    categories: ['new-media'],
    features: {
        requireConfig: false,
        requirePuppeteer: false,
        antiCrawler: false,
        supportRadar: true,
        supportBT: false,
        supportPodcast: false,
        supportScihub: false,
    },
    radar: [
        {
            source: ['www.cccmc.org.cn/:category'],
            target: (params) => {
                const category: string = params.category;

                return `/cccmc${category ? `/${category}` : ''}`;
            },
        },
        {
            title: '商业机会 - 供应信息',
            source: ['www.cccmc.org.cn/syjh/gyxx/'],
            target: '/syjh/gyxx',
        },
        {
            title: '商业机会 - 需求信息',
            source: ['www.cccmc.org.cn/syjh/xqxx/'],
            target: '/syjh/xqxx',
        },
        {
            title: '商业机会 - 合作信息',
            source: ['www.cccmc.org.cn/syjh/hzxx/'],
            target: '/syjh/hzxx',
        },
        {
            title: '商会党建 - 党群动态',
            source: ['www.cccmc.org.cn/shdj/dqdt/'],
            target: '/shdj/dqdt',
        },
        {
            title: '商会党建 - 党内法规',
            source: ['www.cccmc.org.cn/shdj/dnfg/'],
            target: '/shdj/dnfg',
        },
        {
            title: '商会党建 - 青年工作',
            source: ['www.cccmc.org.cn/shdj/qngz/'],
            target: '/shdj/qngz',
        },
        {
            title: '行业资讯 - 统计分析',
            source: ['www.cccmc.org.cn/hyzx/tjfx/'],
            target: '/hyzx/tjfx',
        },
        {
            title: '行业资讯 - 石油化工',
            source: ['www.cccmc.org.cn/hyzx/syhg/'],
            target: '/hyzx/syhg',
        },
        {
            title: '行业资讯 - 金属矿产',
            source: ['www.cccmc.org.cn/hyzx/jskc/'],
            target: '/hyzx/jskc',
        },
        {
            title: '行业资讯 - 五金建材',
            source: ['www.cccmc.org.cn/hyzx/wjjc/'],
            target: '/hyzx/wjjc',
        },
        {
            title: '会员之家 - 会员之声',
            source: ['www.cccmc.org.cn/hyzj/hyzs/'],
            target: '/hyzj/hyzs',
        },
        {
            title: '会员之家 - 会员动态',
            source: ['www.cccmc.org.cn/hyzj/hydt/'],
            target: '/hyzj/hydt',
        },
        {
            title: '会员之家 - 会员推介',
            source: ['www.cccmc.org.cn/hyzj/hytj/'],
            target: '/hyzj/hytj',
        },
        {
            title: '政策法规 - 综合政策',
            source: ['www.cccmc.org.cn/zcfg/zhzc/'],
            target: '/zcfg/zhzc',
        },
        {
            title: '政策法规 - 国内贸易',
            source: ['www.cccmc.org.cn/zcfg/gnmy/'],
            target: '/zcfg/gnmy',
        },
        {
            title: '政策法规 - 对外贸易',
            source: ['www.cccmc.org.cn/zcfg/dwmy/'],
            target: '/zcfg/dwmy',
        },
        {
            title: '政策法规 - 投资合作',
            source: ['www.cccmc.org.cn/zcfg/tzhz/'],
            target: '/zcfg/tzhz',
        },
    ],
    view: ViewType.Articles,
};