'use strict';

const Promise = require('bluebird');
const bhttp = require('bhttp');
const cheerio = require('cheerio');
const moment = require('moment');

const { matchTags } = require('../tags');

async function fetchPhotos(url) {
    const res = await bhttp.get(url);

    return res.body.toString();
}

function scrapePhotos(html) {
    const $ = cheerio.load(html, { normalizeWhitespace: true });

    const photos = $('.photo_gallery_thumbnail_wrapper .thumbs')
        .map((photoIndex, photoElement) => $(photoElement).attr('src').replace('thumbs/', 'photos/'))
        .toArray();

    return photos;
}

async function getPhotos(entryId, page = 1) {
    const albumUrl = `https://www.julesjordan.com/trial/gallery.php?id=${entryId}&type=highres&page=${page}`;

    const html = await fetchPhotos(albumUrl);
    const $ = cheerio.load(html, { normalizeWhitespace: true });

    const photos = scrapePhotos(html);
    const pages = Number($('.page_totals').text().trim().match(/\d+$/)[0]);

    const otherPhotos = await Promise.map(Array.from({ length: pages - 1 }), async (val, index) => {
        const pageUrl = `https://www.julesjordan.com/trial/gallery.php?id=${entryId}&type=highres&page=${index + 2}`;
        const pageHtml = await fetchPhotos(pageUrl);

        return scrapePhotos(pageHtml);
    }, {
        concurrency: 2,
    });

    return photos.concat(otherPhotos.flat());
}

function scrapeLatest(html, site) {
    const $ = cheerio.load(html, { normalizeWhitespace: true });
    const scenesElements = $('.update_details').toArray();

    return scenesElements.map((element) => {
        const photoElement = $(element).find('a img.thumbs');
        const photoCount = Number(photoElement.attr('cnt'));
        const photos = Array.from({ length: photoCount }, (value, index) => photoElement.attr(`src${index}_1x`)).filter(photoUrl => photoUrl !== undefined);

        const sceneLinkElement = $(element).children('a').eq(1);
        const url = sceneLinkElement.attr('href');
        const title = sceneLinkElement.text();

        const entryId = $(element).attr('data-setid');

        const date = moment
            .utc($(element).find('.update_date').text(), 'MM/DD/YYYY')
            .toDate();

        const actors = $(element).find('.update_models a')
            .map((actorIndex, actorElement) => $(actorElement).text())
            .toArray();

        return {
            url,
            entryId,
            title,
            actors,
            date,
            site,
            photos,
        };
    });
}

function scrapeUpcoming(html, site) {
    const $ = cheerio.load(html, { normalizeWhitespace: true });
    const scenesElements = $('#coming_soon_carousel').find('.table').toArray();

    return scenesElements.map((element) => {
        const photoElement = $(element).find('a img.thumbs');
        const photoCount = Number(photoElement.attr('cnt'));
        const photos = Array.from({ length: photoCount }, (value, index) => photoElement.attr(`src${index}_1x`)).filter(photoUrl => photoUrl !== undefined);

        const entryId = $(element).find('.upcoming_updates_thumb').attr('id').match(/\d+/)[0];

        const details = $(element).find('.update_details_comingsoon')
            .eq(1)
            .children()
            .remove();

        const title = details
            .end()
            .text()
            .trim();

        const actors = details
            .text()
            .trim()
            .split(', ');

        const date = moment
            .utc($(element).find('.update_date_comingsoon').text().slice(7), 'MM/DD/YYYY')
            .toDate();

        return {
            url: null,
            entryId,
            title,
            date,
            actors,
            photos,
            rating: null,
            site,
        };
    });
}

async function scrapeScene(html, url, site) {
    const $ = cheerio.load(html, { normalizeWhitespace: true });

    const title = $('.title_bar_hilite').text().trim();
    const entryId = $('.suggest_tags a').attr('href').match(/\d+/)[0];
    const date = moment
        .utc($('.update_date').text(), 'MM/DD/YYYY')
        .toDate();

    const actors = $('.backgroundcolor_info > .update_models a')
        .map((_actorIndex, actorElement) => $(actorElement).text())
        .toArray();

    const description = $('.update_description').text().trim();

    const stars = Number($('.avg_rating').text().trim().replace(/[\s|Avg Rating:]/g, ''));

    const infoLines = $('script:contains("useimage")')
        .html()
        .split('\n');

    const poster = infoLines.find(line => line.match('useimage')).replace('useimage = "', '').slice(0, -2);

    const trailerLine = infoLines.find(line => line.match('movie["Trailer_720"]'));
    const trailer = trailerLine.slice(trailerLine.indexOf('path:"') + 6, trailerLine.indexOf('",movie'));

    const photos = await getPhotos(entryId);

    const rawTags = $('.update_tags a').map((tagIndex, tagElement) => $(tagElement).text()).toArray();
    const tags = await matchTags(rawTags);

    return {
        url,
        entryId,
        title,
        date,
        actors,
        description,
        poster,
        photos,
        trailer: {
            src: trailer,
            quality: 720,
        },
        rating: {
            stars,
        },
        tags,
        site,
    };
}

async function fetchLatest(site, page = 1) {
    const res = await bhttp.get(`${site.url}/trial/categories/movies_${page}_d.html`);

    return scrapeLatest(res.body.toString(), site);
}

async function fetchUpcoming(site) {
    const res = await bhttp.get(`${site.url}/trial/index.php`);

    return scrapeUpcoming(res.body.toString(), site);
}

async function fetchScene(url, site) {
    const res = await bhttp.get(url);

    return scrapeScene(res.body.toString(), url, site);
}

module.exports = {
    fetchLatest,
    fetchUpcoming,
    fetchScene,
};