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

class ScribbleHubPlugin implements Plugin.PluginBase {
    id = "scribblehub";
    name = "ScribbleHub";
    icon = "src/en/scribblehub/icon.png";
    site = "https://www.scribblehub.com/";
    version = "1.0.0";
    parseNovels(loadedCheerio: CheerioAPI){
        const novels: Plugin.NovelItem[] = [];

        loadedCheerio('.search_main_box').each((i,el) => {
            const novelName = loadedCheerio(el).find('.search_title > a').text();
            const novelCover = loadedCheerio(el).find('.search_img > img').attr('src');
            const novelUrl  = loadedCheerio(el).find('.search_title > a').attr('href');
      
            if (!novelUrl) return;

            const novel = {
                name: novelName,
                cover: novelCover,
                path: novelUrl.replace(this.site, ''),
            }
            novels.push(novel);
        });
        return novels;
    }

    async popularNovels(
        page: number,
        { showLatestNovels, filters }: Plugin.PopularNovelsOptions<typeof this.filters>
    ): Promise<Plugin.NovelItem[]> {  
        let link = `${this.site}`;
        if (showLatestNovels)
            link += "latest-series/"
        else // if (filters.genres.value.include?.length ||
                 // filters.genres.value.exclude?.length)
            link += "series-finder/?sf=1"
        // else
            // link += "series-ranking/";
        // TODO, series-ranking filters when hideOnSelect come out

        if (filters.genres.value.include?.length)
            link += '&gi=' + filters.genres.value.include.join(',');

        if (filters.genres.value.exclude?.length)
            link += '&ge=' + filters.genres.value.exclude.join(',');

        if (filters.genres.value.include?.length || filters.genres.value.exclude?.length)
            link += '&mgi=' + filters.genre_operator.value;

        if (filters.content_warning.value.include?.length)
            link += '&cti=' + filters.content_warning.value.include.join(',');

        if (filters.content_warning.value.exclude?.length)
            link += '&cte=' + filters.content_warning.value.exclude.join(',');

        if (filters.content_warning.value.include?.length ||
            filters.content_warning.value.exclude?.length)
            link += '&mct' + filters.content_warning_operator.value;

        link += '&sort=' + filters.sort.value;
        link += '&order=' + filters.order.value;

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

        let loadedCheerio = parseHTML(body);

        const novel: Plugin.SourceNovel = {
            path: novelPath,
            name: loadedCheerio('.fic_title').text() || 'Untitled',
            cover: loadedCheerio('.fic_image > img').attr('src'),
            summary: loadedCheerio('.wi_fic_desc').text(),
            author: loadedCheerio('.auth_name_fic').text(),
            chapters: [],
        };
    
        novel.genres = loadedCheerio('.fic_genre')
            .map((i, el) => loadedCheerio(el).text())
            .toArray()
            .join(",");
     
        novel.status = loadedCheerio('.rnd_stats')
            .next()
            .text()
            .includes('Ongoing')
                ? 'Ongoing'
                : 'Completed';

        const formData = new FormData();
        formData.append('action', 'wi_getreleases_pagination');
        formData.append('pagenum', '-1');
        formData.append('mypostid', novelPath.split('/')[1]);

        const data = await fetchApi(
            `${this.site}wp-admin/admin-ajax.php`,
            {
            method: 'POST',
            body: formData,
            },
        );
        const text = await data.text();

        loadedCheerio = parseHTML(text);

        const chapter: Plugin.ChapterItem[] = [];

        const parseISODate = (date: string) => {
            if (date.includes("ago")) {
                const dayJSDate = dayjs(new Date()); // today
                const timeAgo = date.match(/\d+/)?.[0] || "";
                const timeAgoInt = parseInt(timeAgo, 10);
        
                if (!timeAgo) return null; // there is no number!
        
                if (date.includes("hours ago") || date.includes("hour ago")) {
                    dayJSDate.subtract(timeAgoInt, "hours"); // go back N hours
                }
        
                if (date.includes("days ago") || date.includes("day ago")) {
                    dayJSDate.subtract(timeAgoInt, "days"); // go back N days
                }
        
                if (date.includes("months ago") || date.includes("month ago")) {
                    dayJSDate.subtract(timeAgoInt, "months"); // go back N months
                }
        
                return dayJSDate.toISOString();
            }
            return null;
        };

        loadedCheerio('.toc_w').each((i,el) => {
            const chapterName = loadedCheerio(el).find('.toc_a').text();
            const releaseDate = loadedCheerio(el).find('.fic_date_pub').text();
            const chapterUrl = loadedCheerio(el).find('a').attr('href');

            if (!chapterUrl) return;
            chapter.push({
                name: chapterName,
                releaseTime: parseISODate(releaseDate),
                path: chapterUrl.replace(this.site, ''),
            });
        });

        novel.chapters = chapter.reverse();

        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('div.chp_raw').html() || '';
        return chapterText;
    }

    async searchNovels(
        searchTerm: string,
        pageNo: number
    ): Promise<Plugin.NovelItem[]> {
        const url =`${this.site}?s=${searchTerm}&post_type=fictionposts`;
        const result = await fetchApi(url);
        const body = await result.text();

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

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

    filters = {
        sort: {
            label: "Sort Results By",
            value: "ratings",
            options: [
                { label: "Chapters", value: "chapters" },
                { label: "Chapters per week", value: "frequency" },
                { label: "Date Added", value: "dateadded" },
                { label: "Favorites", value: "favorites" },
                { label: "Last Updated", value: "lastchdate" },
                { label: "Number of Ratings", value: "numofrate" },
                { label: "Pages", value: "pages" },
                { label: "Pageviews", value: "pageviews" },
                { label: "Ratings", value: "ratings" },
                { label: "Readers", value: "readers" },
                { label: "Reviews", value: "reviews" },
                { label: "Total Words", value: "totalwords" },
            ],
            type: FilterTypes.Picker,
        },
        order: {
            label: "Order by",
            value: "desc",
            options: [
                { label: "Descending", value: "desc" },
                { label: "Ascending", value: "asc" },
            ],
            type: FilterTypes.Picker,
        },
        storyStatus: {
            label: "Story Status (Translation)",
            value: "",
            options: [
                { label: "All", value: "all" },
                { label: "Completed", value: "completed" },
                { label: "Ongoing", value: "ongoing" },
                { label: "Hiatus", value: "hiatus" },
            ],
            type: FilterTypes.Picker,
        },
        genres: {
            label: 'Genres',
            value: {
                include: [],
                exclude: [],
            },
            options: [
            { label: 'Action', value: '9' },
            { label: 'Adult', value: '902' },
            { label: 'Adventure', value: '8' },
            { label: 'Boys Love', value: '891' },
            { label: 'Comedy', value: '7' },
            { label: 'Drama', value: '903' },
            { label: 'Ecchi', value: '904' },
            { label: 'Fanfiction', value: '38' },
            { label: 'Fantasy', value: '19' },
            { label: 'Gender Bender', value: '905' },
            { label: 'Girls Love', value: '892' },
            { label: 'Harem', value: '1015' },
            { label: 'Historical', value: '21' },
            { label: 'Horror', value: '22' },
            { label: 'Isekai', value: '37' },
            { label: 'Josei', value: '906' },
            { label: 'LitRPG', value: '1180' },
            { label: 'Martial Arts', value: '907' },
            { label: 'Mature', value: '20' },
            { label: 'Mecha', value: '908' },
            { label: 'Mystery', value: '909' },
            { label: 'Psychological', value: '910' },
            { label: 'Romance', value: '6' },
            { label: 'School Life', value: '911' },
            { label: 'Sci-fi', value: '912' },
            { label: 'Seinen', value: '913' },
            { label: 'Slice of Life', value: '914' },
            { label: 'Smut', value: '915' },
            { label: 'Sports', value: '916' },
            { label: 'Supernatural', value: '5' },
            { label: 'Tragedy', value: '901' },
            ],
            type: FilterTypes.ExcludableCheckboxGroup,
        },
        genre_operator : {
            value: 'and',
            label: 'Genre And/Or',
            options: [
                { label: 'OR', value: 'or' },
                { label: 'AND', value: 'and' },
            ],
            type: FilterTypes.Picker,
        },
        content_warning: {
            value: {
                include: [],
                exclude: [],
            },
            label: "Mature Content",
            options: [
                { label: 'Gore', value: '48' },
                { label: 'Sexual Content', value: '50' },
                { label: 'Strong Language', value: '49' },
            ],
            type: FilterTypes.ExcludableCheckboxGroup
        },
        content_warning_operator: {
            value: 'and',
            label: 'Mature Content And/Or',
            options: [
                { label: 'OR', value: 'or' },
                { label: 'AND', value: 'and' },
            ],
            type: FilterTypes.Picker,
        },
    } satisfies Filters;
}

export default new ScribbleHubPlugin();