import { load as parseHTML } from "cheerio";
import { fetchApi, fetchFile } from "@libs/fetch";
import { Chapter, Novel, Plugin } from "@typings/plugin";

export const id = "lightnovelpub";
export const name = "LightNovelPub";
export const version = "1.0.0";
export const icon = "src/en/lightnovelpub/icon.png";
export const site = "https://www.lightnovelpub.com/";


const baseUrl = site;
const pluginId = id;

const headers = {
    Accept: "application/json",
    "Content-Type": "application/json",
};

export const popularNovels: Plugin.popularNovels = async function (page) {
    const url = `${baseUrl}browse/all/popular/all/${page}`;

    const body = await fetchApi(url, {}, pluginId).then((r) => r.text());

    const loadedCheerio = parseHTML(body);

    const novels: Novel.Item[] = [];

    loadedCheerio(".novel-item.ads").remove();

    loadedCheerio(".novel-item").each(function () {
        const novelName = loadedCheerio(this)
            .find(".novel-title")
            .text()
            .trim();
        const novelCover = loadedCheerio(this).find("img").attr("data-src");
        const novelUrl =
            baseUrl +
            loadedCheerio(this)
                .find(".novel-title > a")
                .attr("href")
                ?.substring(1);

        const novel = {
            name: novelName,
            cover: novelCover,
            url: novelUrl,
        };

        novels.push(novel);
    });

    return novels;
};

export const parseNovelAndChapters: Plugin.parseNovelAndChapters =
    async function (novelUrl) {
        const url = novelUrl;
        const body = await fetchApi(url, {}, pluginId).then((r) => r.text());

        let loadedCheerio = parseHTML(body);

        const novel: Novel.instance = {
            url,
            chapters: [],
        };

        novel.name = loadedCheerio("h1.novel-title").text().trim();

        novel.cover = loadedCheerio("figure.cover > img").attr("data-src");

        novel.genres = "";

        loadedCheerio(".categories > ul > li > a").each(function () {
            novel.genres += loadedCheerio(this).text() + ",";
        });

        novel.genres = novel.genres.slice(0, -1);

        loadedCheerio("div.header-stats > span").each(function () {
            if (loadedCheerio(this).find("small").text() === "Status") {
                novel.status = loadedCheerio(this).find("strong").text();
            }
        });

        novel.author = loadedCheerio(".author > a > span").text();

        novel.summary = loadedCheerio(".summary > .content").text().trim();

        const delay = (ms: number) => new Promise((res) => setTimeout(res, ms));

        let lastPage = 1;

        lastPage = parseInt(
            loadedCheerio(
                "#novel > header > div.header-body.container > div.novel-info > div.header-stats > span:nth-child(1) > strong"
            )
                .text()
                ?.trim()
        );

        lastPage = Math.ceil(lastPage / 100);

        async function getChapters() {
            let chapter: Chapter.Item[] = [];

            for (let i = 1; i <= lastPage; i++) {
                const chaptersUrl = `${novelUrl}/chapters/page-${i}`;

                const chaptersHtml = await fetchApi(
                    chaptersUrl,
                    { headers: headers },
                    pluginId
                ).then((r) => r.text());

                loadedCheerio = parseHTML(chaptersHtml);

                loadedCheerio(".chapter-list li").each(function () {
                    const chapterName = loadedCheerio(this)
                        .find(".chapter-title")
                        .text()
                        .trim();

                    const releaseDate = loadedCheerio(this)
                        .find(".chapter-update")
                        .text()
                        .trim();

                    const chapterUrl =
                        baseUrl +
                        loadedCheerio(this)
                            .find("a")
                            .attr("href")
                            ?.substring(1);

                    chapter.push({
                        name: chapterName,
                        releaseTime: releaseDate,
                        url: chapterUrl,
                    });
                });

                await delay(1000);
            }

            return chapter;
        }

        novel.chapters = await getChapters();

        return novel;
    };

export const parseChapter: Plugin.parseChapter = async function (chapterUrl) {
    const body = await fetchApi(chapterUrl, {}, pluginId).then((r) => r.text());

    const loadedCheerio = parseHTML(body);

    let chapterText = loadedCheerio("#chapter-container").html();

    return chapterText;
};

export const searchNovels: Plugin.searchNovels = async function (searchTerm) {
    const url = `${baseUrl}lnsearchlive`;
    const link = `${baseUrl}search`;
    const response = await fetchApi(link, {}, pluginId).then((r) => r.text());
    const token = parseHTML(response);
    let verifytoken = token("#novelSearchForm > input").attr("value");

    let formData = new FormData();
    formData.append("inputContent", searchTerm);

    const body = await fetchApi(
        url,
        {
            method: "POST",
            headers: { LNRequestVerifyToken: verifytoken! },
            body: formData,
        },
        pluginId
    ).then((r) => r.text());

    let loadedCheerio = parseHTML(body);

    let novels: Novel.Item[] = [];

    let results = JSON.parse(loadedCheerio("body").text());

    loadedCheerio = parseHTML(results.resultview);

    loadedCheerio(".novel-item").each(function () {
        const novelName = loadedCheerio(this)
            .find("h4.novel-title")
            .text()
            .trim();
        const novelCover = loadedCheerio(this).find("img").attr("src");
        const novelUrl =
            baseUrl + loadedCheerio(this).find("a").attr("href")?.substring(1);

        novels.push({
            name: novelName,
            url: novelUrl,
            cover: novelCover,
        });
    });

    return novels;
};

export const fetchImage: Plugin.fetchImage = async function (url) {
    return await fetchFile(url, { headers: headers });
};