'use strict';

const util = require('util');
const Promise = require('bluebird');
const bhttp = require('bhttp');
const cheerio = require('cheerio');
const { JSDOM } = require('jsdom');
const moment = require('moment');

const { get, geta, ctxa, parseDate, prefixUrl } = require('../utils/q');
const http = require('../utils/http');
const { heightToCm } = require('../utils/convert');
const slugify = require('../utils/slugify');

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

	return res.body.toString();
}

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

	const photos = $('.photo_gallery_thumbnail_wrapper .thumbs')
		.toArray()
		.map((photoElement) => {
			const src = $(photoElement).attr('src');

			// high res often available in alternative directories, but not always, provide original as fallback
			if (type === 'caps') {
				return [
					src.replace('capthumbs/', 'caps/'),
					src,
				];
			}

			return [
				src.replace('thumbs/', 'photos/'),
				src.replace('thumbs/', '1600watermarked/'),
				src.replace('thumbs/', '1280watermarked/'),
				src.replace('thumbs/', '1024watermarked/'),
				src,
			];
		});

	return photos;
}

async function getPhotosLegacy(entryId, site, type = 'highres', page = 1) {
	const albumUrl = `${site.url}/trial/gallery.php?id=${entryId}&type=${type}&page=${page}`;

	// logger.warn(`Jules Jordan is using legacy photo scraper for ${albumUrl} (page ${page})`);

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

	// don't add first URL to pages to prevent unnecessary duplicate request
	const photos = scrapePhotos(html, type);
	const pages = Array.from(new Set($('.page_numbers a').toArray().map(el => $(el).attr('href'))));

	const otherPhotos = pages
		? await Promise.map(pages, async (pageX) => {
			const pageUrl = `https://www.julesjordan.com/trial/${pageX}`;
			const pageHtml = await fetchPhotos(pageUrl);

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

	const allPhotos = photos.concat(otherPhotos.flat());

	if (allPhotos.length === 0 && type === 'highres') {
		// photos not available, try for screencaps instead
		return getPhotosLegacy(entryId, site, 'caps', 1);
	}

	return allPhotos;
}

async function getPhotos(entryId, site, type = 'highres', page = 1) {
	const albumUrl = `${site.parameters?.photos || `${site.url}/gallery.php`}?id=${entryId}&type=${type}&page=${page}`;

	const res = await bhttp.get(albumUrl);
	const html = res.body.toString();

	const sourceLines = html.split(/\n/).filter(line => line.match(/ptx\["\w+"\]/));
	const sources = sourceLines.reduce((acc, sourceLine) => {
		const quality = sourceLine.match(/\["\w+"\]/)[0].slice(2, -2);
		const sourceStart = sourceLine.match(/\/trial|\/tour|\/content/);

		if (!sourceStart) return acc;
		const source = sourceLine.slice(sourceStart.index, sourceLine.indexOf('.jpg') + 4);

		if (!source) return acc;
		if (!acc[quality]) acc[quality] = [];

		acc[quality].push(`${site.url}${source}`);

		return acc;
	}, {});

	if (type === 'highres') {
		if (sources['1600'] && sources['1600'].length > 0) return sources['1600'];
		if (sources['1280'] && sources['1280'].length > 0) return sources['1280'];
		if (sources['1024'] && sources['1024'].length > 0) return sources['1024'];
		if (sources.Thumbs && sources.Thumbs.length > 0) return sources.Thumbs;

		// no photos available, try for screencaps instead
		return getPhotos(entryId, site, 'caps', 1);
	}

	if (sources.jpg && sources.jpg.length > 0) return sources.jpg;
	if (sources['Video Cap Thumbs'] && sources['Video Cap Thumbs'].length > 0) return sources['Video Cap Thumbs'];

	// no screencaps available either, try legacy scraper just in case
	return getPhotosLegacy(entryId, site, 'highres', 1);
}

function getEntryId(html) {
	const entryId = html.match(/showtagform\((\d+)\)/);

	if (entryId) {
		return entryId[1];
	}

	const setIdIndex = html.indexOf('setid:"');

	if (setIdIndex) {
		return html.slice(setIdIndex, html.indexOf(',', setIdIndex)).match(/\d+/)?.[0];
	}

	return null;
}

function scrapeAll(scenes, site, entryIdFromTitle) {
	return scenes.map(({ el, qu }) => {
		const release = {};

		release.url = qu.url('.update_title a, .dvd_info > a, a ~ a');
		release.title = qu.q('.update_title a, .dvd_info > a, a ~ a', true);
		release.date = qu.date('.update_date', 'MM/DD/YYYY');

		release.entryId = (entryIdFromTitle && slugify(release.title)) || el.dataset.setid || qu.q('.rating_box')?.dataset.id;

		release.actors = qu.all('.update_models a', true);

		const dvdPhotos = qu.imgs('.dvd_preview_thumb');
		const photoCount = Number(qu.q('a img.thumbs', 'cnt')) || 1;

		[release.poster, ...release.photos] = dvdPhotos.length
			? dvdPhotos
			: Array.from({ length: photoCount }).map((value, index) => {
				const src = qu.img('a img.thumbs', `src${index}_1x`) || qu.img('a img.thumbs', `src${index}`) || qu.img('a img.thumbs');
				const prefixedSrc = prefixUrl(src, site.url);

				if (src) {
					return [
						{
							src: prefixedSrc.replace(/.jpg$/, '-full.jpg'),
							referer: site.url,
						},
						{
							src: prefixedSrc,
							referer: site.url,
						},
					];
				}

				return null;
			}).filter(Boolean);

		const teaserScript = qu.html('script');
		if (teaserScript) {
			const src = teaserScript.slice(teaserScript.indexOf('http'), teaserScript.indexOf('.mp4') + 4);
			if (src) release.teaser = { src };
		}

		return release;
	});
}

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

	return scenesElements.map((element) => {
		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();

		const photoElement = $(element).find('a img.thumbs');
		const posterPath = photoElement.attr('src');
		const poster = posterPath.match(/^http/) ? posterPath : `${site.url}${posterPath}`;

		const videoClass = $(element).find('.update_thumbnail div').attr('class');
		const videoScript = $(element).find(`script:contains(${videoClass})`).html();
		const teaser = videoScript.slice(videoScript.indexOf('https://'), videoScript.indexOf('.mp4') + 4);

		return {
			url: null,
			entryId,
			title,
			date,
			actors,
			poster,
			teaser: {
				src: teaser,
			},
			rating: null,
			site,
		};
	});
}

async function scrapeScene({ html, qu }, url, site, include) {
	const release = { url, site };

	release.entryId = getEntryId(html);
	release.title = qu.q('.title_bar_hilite', true);
	release.description = qu.q('.update_description', true);

	release.date = qu.date('.update_date', 'MM/DD/YYYY', null, 'innerHTML');

	release.actors = qu.all('.backgroundcolor_info > .update_models a, .item .update_models a', true);
	release.tags = qu.all('.update_tags a', true);

	const posterPath = html.match(/useimage = "(.*)"/)?.[1];

	if (posterPath) {
		const poster = /^http/.test(posterPath) ? posterPath : `${site.url}${posterPath}`;

		if (poster) {
			release.poster = {
				src: poster,
				referer: site.url,
			};
		}
	}

	if (include.trailer && site.slug !== 'manuelferrara') {
		const trailerLines = html.split('\n').filter(line => /movie\["trailer\w*"\]\[/i.test(line));

		if (trailerLines.length) {
			release.trailer = trailerLines.map((trailerLine) => {
				// const src = trailerLine.match(/path:"([\w-:/.&=?%]+)"/)?.[1];
				const src = trailerLine.match(/path:"(.+)"/)?.[1];
				const quality = trailerLine.match(/movie_height:'(\d+)/)?.[1];

				return src && {
					src: /^http/.test(src) ? src : `${site.url}${src}`,
					quality: quality && Number(quality.replace('558', '540')),
				};
			}).filter(Boolean);
		}
	}

	if (include.photos) release.photos = await getPhotos(release.entryId, site);

	if (qu.exists('.update_dvds a')) {
		release.movie = {
			url: qu.url('.update_dvds a'),
			title: qu.q('.update_dvds a', true),
		};
	}

	const stars = Number(qu.q('.avg_rating', true)?.replace(/[\s|Avg Rating:]/g, ''));
	if (stars) release.stars = stars;

	return release;
}

function scrapeMovie({ el, query }, url, site) {
	const movie = { url, site };

	movie.entryId = query.q('.rating_box').dataset.id;
	movie.title = query.q('.title_bar span', true);
	movie.covers = query.urls('#dvd-cover-flip > a');
	movie.channel = slugify(query.q('.update_date a', true), '');

	// movie.releases = Array.from(document.querySelectorAll('.cell.dvd_info > a'), el => el.href);
	const sceneQus = ctxa(el, '.dvd_details');
	const scenes = scrapeAll(sceneQus, site);

	const curatedScenes = scenes
        ?.map(scene => ({ ...scene, movie }))
        .sort((sceneA, sceneB) => sceneA.date - sceneB.date);

	movie.date = curatedScenes?.[0].date;

	return {
		...movie,
		...(curatedScenes && { scenes: curatedScenes }),
	};
}

function scrapeProfile(html, url, actorName, entity) {
	const { document } = new JSDOM(html).window;

	const bio = document.querySelector('.model_bio').textContent;
	const avatarEl = document.querySelector('.model_bio_pic img, .model_bio_thumb');

	const profile = {
		name: actorName,
	};

	const heightString = bio.match(/\d+ feet \d+ inches/);
	const ageString = bio.match(/Age:\s*(\d{2})/);
	const birthDateString = bio.match(/Age:\s*(\w+ \d{1,2}, \d{4})/);
	const measurementsString = bio.match(/\w+-\d+-\d+/);

	if (birthDateString) profile.birthdate = parseDate(birthDateString[1], 'MMMM D, YYYY');
	if (ageString) profile.age = Number(ageString[1]);

	if (heightString) profile.height = heightToCm(heightString[0]);

	if (measurementsString) {
		const [bust, waist, hip] = measurementsString[0].split('-');

		if (bust) profile.bust = bust;
		if (waist) profile.waist = Number(waist);
		if (hip) profile.hip = Number(hip);
	}

	if (avatarEl) {
		const avatarSources = [
			avatarEl.getAttribute('src0_3x'),
			avatarEl.getAttribute('src0_2x'),
			avatarEl.getAttribute('src0_1x'),
			avatarEl.getAttribute('src0'),
			avatarEl.getAttribute('src'),
		]
			.filter(avatar => avatar && !/p\d+.jpe?g/.test(avatar)) // remove non-existing attributes and placeholder images
			.map(avatar => prefixUrl(avatar, entity.url));

		if (avatarSources.length) profile.avatar = avatarSources;
	}

	profile.releases = Array.from(document.querySelectorAll('.category_listing_block .update_details > a:first-child'), el => el.href);

	return profile;
}

async function fetchLatest(site, page = 1, include, preData, entryIdFromTitle = false) {
	const url = site.parameters?.latest
		? util.format(site.parameters.latest, page)
		: `${site.url}/trial/categories/movies_${page}_d.html`;

	// const res = await bhttp.get(url);
	const res = await geta(url, '.update_details');

	return res.ok ? scrapeAll(res.items, site, entryIdFromTitle) : res.status;
}

async function fetchUpcoming(site) {
	if (site.parameters?.upcoming === false) return null;

	const url = site.parameters?.upcoming ? util.format(site.parameters.upcoming) : `${site.url}/trial/index.php`;
	const res = await http.get(url);

	if (res.statusCode === 200) {
		return scrapeUpcoming(res.body.toString(), site);
	}

	return res.statusCode;
}

async function fetchScene(url, site, baseRelease, include) {
	const res = await get(url);

	return res.ok ? scrapeScene(res.item, url, site, include) : res.status;
}

async function fetchMovie(url, site) {
	const res = await get(url);

	return res.ok ? scrapeMovie(res.item, url, site) : res.status;
}

async function fetchProfile({ name: actorName, url }, entity) {
	const actorSlugA = slugify(actorName, '');
	const actorSlugB = slugify(actorName, '-');

	const urls = [
		url,
		`${entity.parameters?.profile || `${entity.url}/trial/models`}/${actorSlugA}.html`,
		`${entity.parameters?.profile || `${entity.url}/trial/models`}/${actorSlugB}.html`,
	];

	return urls.reduce(async (chain, profileUrl) => {
		const profile = await chain;

		if (profile) {
			return profile;
		}

		if (!profileUrl) {
			return null;
		}

		const res = await http.get(profileUrl);

		if (res.statusCode === 200) {
			return scrapeProfile(res.body.toString(), profileUrl, actorName, entity);
		}

		return null;
	}, Promise.resolve());
}

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