'use strict';

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

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

/* eslint-disable newline-per-chained-call */
function scrape(html, site) {
    const $ = cheerio.load(html, { normalizeWhitespace: true });
    const sceneElements = $('.widget-release-card').toArray();

    return sceneElements.map((element) => {
        const sceneLinkElement = $(element).find('.title a');

        const title = sceneLinkElement.text().trim();
        const url = `https://www.mofos.com${sceneLinkElement.attr('href')}`;
        const entryId = url.split('/').slice(-2, -1)[0];

        const date = moment.utc($(element).find('.date-added').text(), 'MMM DD, YYYY').toDate();
        const actors = $(element).find('.girls-name a').map((actorIndex, actorElement) => $(actorElement).attr('title').replace(/\s+/g, ' ')).toArray();

        const stars = Number($(element).find('.rating').text().slice(0, -1).trim()) / 20;

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

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

    const entryId = url.split('/').slice(-2, -1)[0];
    const title = sceneElement.find('.title').text();
    const description = sceneElement.find('.desc').text();
    const actors = sceneElement.find('.girls-site-box a.model-name').map((actorIndex, actorElement) => $(actorElement).text().trim()).toArray();

    const siteElement = sceneElement.find('.site-name');
    const sitename = siteElement.text().trim();
    const siteId = sitename.replace(/\s+/g, '').toLowerCase();
    const siteUrl = siteElement.attr('href').split('/').slice(0, 4).join('/');

    const stars = Number(sceneElement.find('.rating-box .rating').text().slice(0, -1).trim()) / 20;

    const rawTags = sceneElement.find('.categories a').map((tagIndex, tagElement) => $(tagElement).text().trim()).toArray();

    const [channelSite, tags] = await Promise.all([
        knex('sites')
            .where({ slug: siteId })
            .orWhere({ url: `https://www.mofos.com${siteUrl}` })
            .orWhere({ name: sitename })
            .first(),
        matchTags(rawTags),
    ]);

    return {
        url,
        entryId,
        title,
        description,
        actors,
        tags,
        rating: {
            stars,
        },
        site: channelSite || site,
    };
}

async function fetchLatest(site, page = 1) {
    const res = page > 1
        ? await bhttp.get(`${site.url}/all-models/all-categories/alltime/bydate/${page}/`)
        : await bhttp.get(`${site.url}/all-models/all-categories/alltime/bydate/`); // explicit page 1 redirects to homepage

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

async function fetchUpcoming(site) {
    const res = await bhttp.get(`${site.url}/all-models/all-categories/upcoming/bydate/`);

    return scrape(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,
};