'use strict';

const util = require('util');

const qu = require('../utils/q');
const slugify = require('../utils/slugify');
const { feetInchesToCm, inchesToCm } = require('../utils/convert');

function deriveEntryId(release) {
	if (release.date && release.url) {
		const slug = new URL(release.url).pathname.match(/\/trailers\/(.*).html/)[1];

		return `${slugify(qu.formatDate(release.date, 'YYYY-MM-DD'))}-${slugify(slug)}`;
	}

	if (release.date && release.title) {
		return `${slugify(qu.formatDate(release.date, 'YYYY-MM-DD'))}-${slugify(release.title)}`;
	}

	return null;
}

function extractPoster(posterPath, site, baseRelease) {
	if (posterPath && !/400.jpg/.test(posterPath)) {
		const poster = `${site.parameters?.media || site.url}${posterPath}`;
		const posterSources = [
			poster,
			// upscaled
			poster.replace('-1x', '-2x'),
			poster.replace('-1x', '-3x'),
		];

		if (baseRelease?.poster) {
			return [posterSources, [baseRelease.poster]];
		}

		return [posterSources, []];
	}

	return [baseRelease?.poster || null, []];
}

function getImageWithFallbacks(q, selector, site, el) {
	const sources = el
		? [
			q(el, selector, 'src0_3x'),
			q(el, selector, 'src0_2x'),
			q(el, selector, 'src0_1x'),
		]
		: [
			q(selector, 'src0_3x'),
			q(selector, 'src0_2x'),
			q(selector, 'src0_1x'),
		];

	return sources.filter(Boolean).map((src) => `${site.parameters?.media || site.url}${src}`);
}

function scrapeAll(scenes, channel) {
	return scenes.map(({ query }) => {
		const release = {};

		release.title = query.q('h4 a', true);
		release.url = query.url('a');

		release.date = query.date('.date', 'YYYY-MM-DD');
		release.duration = query.duration('.time');

		const count = query.number('a img', null, 'cnt');

		[release.poster, ...release.photos] = Array.from({ length: count }, (value, index) => [
			query.img('a img', `src${index}_3x`, { origin: channel.url }),
			query.img('a img', `src${index}_2x`, { origin: channel.url }),
			query.img('a img', `src${index}_1x`, { origin: channel.url }),
		]);

		release.stars = query.count('img[src*="star_full"]') + (query.count('img[src*="star_half"]') * 0.5);
		release.entryId = deriveEntryId(release);

		return release;
	});
}

function scrapeAllT1(scenes, site, accNetworkReleases) {
	return scenes.map(({ query }) => {
		const release = {};

		release.title = query.q('h4 a', 'title') || query.q('h4 a', true);
		release.url = query.url('h4 a');

		release.date = query.date('.more-info-div', 'MMM D, YYYY');
		release.duration = query.dur('.more-info-div');

		if (/bts|behind the scenes/i.test(release.title)) release.tags = ['behind the scenes'];

		const posterPath = query.q('.img-div img', 'src0_1x') || query.img('img.video_placeholder');

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

			release.poster = [
				poster.replace('-1x', '-3x'),
				poster.replace('-1x', '-2x'),
				poster,
			];
		}

		// release.entryId = q('.img-div img', 'id')?.match(/set-target-(\d+)/)[1];
		release.entryId = deriveEntryId(release);

		if (site.parameters?.accFilter && accNetworkReleases?.map((accRelease) => accRelease.entryId).includes(release.entryId)) {
			// filter out releases that were already scraped from a categorized site, requeryires sequeryential site scraping
			return null;
		}

		return release;
	}).filter(Boolean);
}

function scrapeScene({ html, query }, channel, url) {
	const release = { url }; // url used for entry ID

	release.title = query.cnt('.videoDetails h3');
	release.description = query.cnt('.videoDetails p');

	release.date = query.date('.videoInfo p', ['MM/DD/YYYY', 'YYYY-MM-DD']);
	release.duration = Number(query.cnt('.videoInfo p:nth-of-type(2)')?.match(/(\d+) min/i)?.[1]) * 60;

	release.actors = query.cnts('.update_models a');

	const posterPath = html.match(/poster="([\w-/.]+)"/)?.[1];
	const poster = qu.prefixUrl(posterPath, channel.url) || query.img('.update_thumb', 'src0_1x', { origin: channel.url }); // latter used when trailer requires signup

	[release.poster, ...release.photos] = [poster, ...query.imgs('.item-thumb img', 'src0_1x', { origin: channel.url })]
		.map((src) => src && [
			src.replace('-1x', '-3x'),
			src.replace('-1x', '-2x'),
			src,
		]);

	const trailerPath = html.match(/\/trailers?\/.*.mp4/);

	if (trailerPath) {
		release.trailer = qu.prefixUrl(trailerPath, channel.parameters?.media || channel.url);
	}

	release.tags = query.cnts('.featuring a[href*="categories/"]');
	release.stars = query.count('.stars img[src*="star_full"]') + (query.count('.stars img[src*="star_half"]') * 0.5);

	release.entryId = deriveEntryId(release);

	return release;
}

function scrapeSceneT1({ html, query }, site, url, baseRelease) {
	const release = { url };

	release.title = query.q('.trailer-section-head .section-title', true);
	release.description = query.text('.row .update-info-block');

	release.date = query.date('.update-info-row', 'MMM D, YYYY', /\w+ \d{1,2}, \d{4}/);
	release.duration = query.dur('.update-info-row:nth-child(2)');

	release.actors = query.all('.models-list-thumbs a').map((el) => ({
		name: query.q(el, 'span', true),
		avatar: getImageWithFallbacks(query.q, 'img', site, el),
	}));

	release.tags = query.all('.tags a', true);

	// const posterPath = html.match(/poster="(.*\.jpg)/)?.[1];
	const posterPath = query.q('.player-thumb img', 'src0_1x');
	[release.poster, release.photos] = extractPoster(posterPath, site, baseRelease);

	const trailer = html.match(/<video.*src="(.*\.mp4)/)?.[1];
	if (trailer && /^http/.test(trailer)) release.trailer = { src: trailer, referer: url };
	else if (trailer) release.trailer = { src: `${site.parameters?.media || site.url}${trailer}`, referer: url };

	const stars = query.q('.update-rating', true).match(/\d.\d/)?.[0];
	if (stars) release.stars = Number(stars);

	if (site.type === 'network') {
		const channelRegExp = new RegExp(site.children.map((channel) => channel.parameters?.match || channel.name).join('|'), 'i');
		const channel = release.tags.find((tag) => channelRegExp.test(tag));

		if (channel) {
			release.channel = slugify(channel, '');
		}
	}

	// release.entryId = q('.player-thumb img', 'id')?.match(/set-target-(\d+)/)[1];
	release.entryId = deriveEntryId(release);

	return release;
}

function scrapeProfileT1({ el, query }, site) {
	const profile = {};

	const bio = query.all('.detail-div + .detail-div p, .detail-div p', true).reduce((acc, info) => {
		const [key, value] = info.split(':');

		if (!value) return acc;

		return {
			...acc,
			[slugify(key, '_')]: value.trim(),
		};
	}, {});

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

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

	if (bio.fun_fact) profile.description = bio.fun_fact;
	if (bio.age) profile.age = Number(bio.age);

	const heightMetric = bio.height?.match(/(\d{3})(\b|c)/);
	const heightImperial = bio.height?.match(/\d{1}(\.\d)?/g);
	if (heightMetric) profile.height = Number(heightMetric[1]);
	if (heightImperial) profile.height = feetInchesToCm(Number(heightImperial[0]), Number(heightImperial[1]));

	profile.avatar = getImageWithFallbacks(query.q, '.img-div img', site);

	const qReleases = qu.initAll(el, '.item-video');
	profile.releases = scrapeAllT1(qReleases, site);

	return profile;
}

async function fetchActorScenes({ query, el }, channel, accScenes = []) {
	const scenes = scrapeAll(qu.initAll(el, '.item-video'), channel);
	const nextPage = query.url('.next a');

	if (nextPage) {
		const res = await qu.get(nextPage);

		if (res.ok) {
			return fetchActorScenes(res.item, channel, scenes.concat(accScenes));
		}
	}

	return accScenes.concat(scenes);
}

async function scrapeProfile({ query, el }, channel, options) {
	const profile = {};

	const bio = query.all('.stats li').reduce((acc, bioEl) => {
		const key = query.cnt(bioEl, 'strong');
		const value = query.url(bioEl) || query.text(bioEl);

		return {
			...acc,
			[slugify(key, '_')]: value,
		};
	}, {});

	if (bio.date_of_birth) profile.birthdate = qu.extractDate(bio.date_of_birth, 'MMMM D, YYYY');
	if (bio.birthplace) profile.birthPlace = bio.birthplace;
	if (bio.fun_fact) profile.description = bio.fun_fact;

	if (bio.ethnicity) profile.ethnicity = bio.ethnicity;

	if (bio.height) profile.height = Number(bio.height.match(/^\d{2,3}/)?.[0]);
	if (bio.weight) profile.weight = Number(bio.weight.match(/^\d{2,3}/)?.[0]);

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

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

	if (bio.penis_length) profile.penisLength = Number(bio.penis_length.match(/(\d+)\s*cm/i)?.[1] || inchesToCm(bio.penis_length.match(/(\d+\.?\d+)\s*in/i)?.[1])) || null;
	if (bio.penis_girth) profile.penisGirth = Number(bio.penis_girth.match(/(\d+)\s*cm/i)?.[1] || inchesToCm(bio.penis_girth.match(/(\d+\.?\d+)\s*in/i)?.[1])) || null;
	if (bio.circumcised && /yes/i.test(bio.circumcised)) profile.circumcised = true;
	if (bio.circumcised && /no/i.test(bio.circumcised)) profile.circumcised = false;

	if (bio.natural_breasts && /yes/i.test(bio.natural_breasts)) profile.naturalBoobs = true;
	if (bio.natural_breasts && /no/i.test(bio.natural_breasts)) profile.naturalBoobs = false;

	if (bio.tattoos && /yes/i.test(bio.tattoos)) profile.hasTattoos = true;
	if (bio.tattoos && /no/i.test(bio.tattoos)) profile.hasTattoos = false;
	if (bio.piercings && /yes/i.test(bio.piercings)) profile.hasPiercings = true;
	if (bio.piercings && /no/i.test(bio.piercings)) profile.hasPiercings = false;

	if (bio.aliases) profile.aliases = bio.aliases.split(',').map((alias) => alias.trim());

	profile.social = [bio.onlyfans, bio.twitter, bio.instagram].filter(Boolean);

	profile.avatar = [
		query.img('.profile-pic img', 'src0_3x', { origin: channel.url }),
		query.img('.profile-pic img', 'src0_2x', { origin: channel.url }),
		query.img('.profile-pic img', 'src0_1x', { origin: channel.url }),
	];

	if (options.includeActorScenes) {
		profile.releases = await fetchActorScenes({ query, el }, channel);
	}

	return profile;
}

async function fetchLatest(site, page = 1, include, { uniqueReleases = [], duplicateReleases = [] }) {
	const url = (site.parameters?.latest && util.format(site.parameters.latest, page))
        || (site.parameters?.t1 && `${site.url}/t1/categories/movies_${page}_d.html`)
        || `${site.url}/categories/movies_${page}_d.html`;

	const res = await qu.getAll(url, '.modelfeature, .item-video, .updateItem');

	if (!res.ok) {
		return res.status;
	}

	if (site.parameters?.t1) {
		return scrapeAllT1(res.items, site, [...uniqueReleases, ...duplicateReleases]);
	}

	return scrapeAll(res.items, site, uniqueReleases);
}

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

	if (!res.ok) {
		return res.status;
	}

	if (site.parameters?.t1) {
		return scrapeSceneT1(res.item, site, url, baseRelease);
	}

	return scrapeScene(res.item, site, url, baseRelease);
}

async function fetchProfile({ name: actorName }, { site }, options) {
	const actorSlugA = slugify(actorName, '');
	const actorSlugB = slugify(actorName);

	const t1 = site.parameters?.t1 ? 't1/' : '';

	const res1 = site.parameters?.profile
		? await qu.get(util.format(site.parameters.profile, actorSlugA))
		: await qu.get(`${site.url}/${t1}models/${actorSlugA}.html`, null, null, { followRedirects: false });

	const res = (res1.ok && res1)
        || (site.parameters?.profile && await qu.get(util.format(site.parameters.profile, actorSlugB)))
		|| await qu.get(`${site.url}/${t1}models/${actorSlugB}.html`, null, null, { followRedirects: false });

	if (!res.ok) {
		return res.status;
	}

	if (site.parameters?.t1) {
		return scrapeProfileT1(res.item, site);
	}

	return scrapeProfile(res.item, site, options);
}

module.exports = {
	fetchLatest,
	fetchScene,
	fetchProfile,
	scrapeAllT1,
};