import { CheerioAPI, load, load as parseHTML } from "cheerio";
import { fetchApi, fetchFile } from "@libs/fetch";
import { Plugin } from "@typings/plugin";
import { Filters, FilterTypes } from "@libs/filterInputs";

class RoyalRoad implements Plugin.PluginBase {
    id = "royalroad";
    name = "Royal Road";
    version = "1.0.0";
    icon = "src/en/royalroad/icon.png";
    site = "https://www.royalroad.com/";

    parseNovels(loadedCheerio:CheerioAPI){
        const novels: Plugin.NovelItem[] = [];

        loadedCheerio(".fiction-list-item").each((idx, ele) => {
            const novelName = loadedCheerio(ele).find('a.bold').text();
            const novelCover = loadedCheerio(ele).find('img').attr('src');
            const novelUrl = loadedCheerio(ele).find('a.bold').attr('href')?.slice(1);

            if (!novelUrl) return;

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

            novels.push(novel);
        });

        return novels;
    }

    async popularNovels(
        page: number,
        { filters }: Plugin.PopularNovelsOptions<typeof this.filters>
    ): Promise<Plugin.NovelItem[]> {  
        let link = `${this.site}fictions/`;

        link += filters.order.value;
        link += `?page=${page}`;

        if (filters.genre.value !== '')
            link += `&genre=${filters.genre.value}`;

        const body = await fetchApi(link).then((r) => r.text());        

        const loadedCheerio = parseHTML(body);
        return this.parseNovels(loadedCheerio);
    }

    async parseNovel(novelPath: string): Promise<Plugin.SourceNovel> {
        const result = await fetchApi(this.site + novelPath);
        const body = await result.text();

        const loadedCheerio = parseHTML(body);

        const novel: Plugin.SourceNovel = {
            path: novelPath,
            name: loadedCheerio("h1").text() || "Untitled",
            cover: loadedCheerio('.cover-art-container img').attr('src'),
            author: loadedCheerio('h4 a').text(),
            summary: loadedCheerio(".description").text().trim(),
            status: loadedCheerio('span.label-sm:last').text().trim(),
            chapters: [],
        };

        novel.genres = loadedCheerio('span.tags a')
            .map((i, el) => loadedCheerio(el).text())
            .toArray()
            .join(",");

        const chapterlisting = JSON.parse(
            loadedCheerio('script:contains("window.chapters")')
                .html()
                ?.match(/window.chapters = \[(.*?)\]/)![0]
                ?.replace("window.chapters = ", "") || ""
        );

        interface ChapterEntry {
            title: string;
            date: string;
            url: string;
        }

        const chapter : Plugin.ChapterItem[] = chapterlisting.map(
            (chapter: ChapterEntry) => ({
                name: chapter.title,
                path: chapter.url.slice(1),
                releaseTime: chapter.date,
        }))

        novel.chapters = chapter;
        return novel;
    }


    async parseChapter(chapterPath: string): Promise<string> {
        const result = await fetchApi(this.site + chapterPath);
        const body = await result.text();

        const loadedCheerio = parseHTML(body);

        const chapterText = loadedCheerio(".chapter-content").html() || '';

        return chapterText;
    }

    async searchNovels(searchTerm: string, page: number): Promise<Plugin.NovelItem[]> {
        const searchUrl = `${this.site}fictions/search?page=${page}&title=${searchTerm}`;

        const result = await fetchApi(searchUrl);
        const body = await result.text();

        const loadedCheerio = parseHTML(body);
        return this.parseNovels(loadedCheerio);
    }

    async fetchImage(url: string): Promise<string | undefined> {
        return fetchFile(url);
    }

    filters = {
        order: {
            value: "weekly-popular",
            label: "Order By",
            options: [
                { label: "Best Rated", value: "best-rated" },
                { label: "Trending", value: "trending" },
                { label: "Ongoing Fictions", value: "active-popular" },
                { label: "Complete", value: "complete" },
                { label: "Popular this week", value: "weekly-popular" },
                { label: "Latest Updates", value: "latest-updates" },
                { label: "Newest Fictions", value: "new" },
                { label: "Rising Stars", value: "rising-stars" },
                { label: "Writathon", value: "writathon" },
            ],
            type: FilterTypes.Picker,
        },
        genre: {
            value: "",
            label: "Genres",
            options: [
                { label: "ALL", value: "" },
                { label: "Action", value: "action" },
                { label: "Adventure", value: "adventure" },
                { label: "Comedy", value: "comedy" },
                { label: "Contemporary", value: "contemporary" },
                { label: "Drama", value: "drama" },
                { label: "Fantasy", value: "fantasy" },
                { label: "Historical", value: "historical" },
                { label: "Horror", value: "horror" },
                { label: "Mystery", value: "mystery" },
                { label: "Psychological", value: "psychological" },
                { label: "Romance", value: "romance" },
                { label: "Satire", value: "satire" },
                { label: "Sci-fi", value: "sci_fi" },
                { label: "Short Story", value: "one_shot" },
                { label: "Tragedy", value: "tragedy" }
            ],
            type: FilterTypes.Picker,
        }
    } satisfies Filters;
}

export default new RoyalRoad();