'use strict';

/* eslint-disable newline-per-chained-call */
const Promise = require('bluebird');
const { CookieJar } = Promise.promisifyAll(require('tough-cookie'));
const cookie = require('cookie');
const moment = require('moment');

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

function getBasePath(channel, path = '/scene') {
	return channel.parameters?.scene
		|| ((channel.parameters?.native || channel.type === 'network') && `${channel.url}${path}`)
		|| `${channel.parent.url}${path}`;
}

function getThumbs(scene) {
	if (scene.images.poster) {
		return Object.values(scene.images.poster) // can be { 0: {}, 1: {}, ... } instead of array
			.filter((img) => typeof img === 'object') // remove alternateText property
			.map((image) => image.xl.url);
	}

	if (Array.isArray(scene.images.card_main_rect)) {
		return scene.images.card_main_rect
			.concat(scene.images.card_secondary_rect || [])
			.map((image) => image.xl.url.replace('.thumb', ''));
	}

	return [];
}

function getCovers(images, target = 'cover') {
	if (!images[target]) {
		return [];
	}

	const covers = [
		images[target][0].md?.url,
		images[target][0].sm?.url,
		images[target][0].xs?.url,
		// bigger but usually upscaled
		images[target][0].xx?.url,
		images[target][0].xl?.url,
		images[target][0].lg?.url,
	];

	if (target === 'poster') {
		return covers;
	}

	return [covers];
}

function getVideos(data) {
	const teaserSources = data.videos.mediabook?.files;
	const trailerSources = data.children.find((child) => child.type === 'trailer')?.videos.full?.files;

	const teaser = teaserSources && Object.values(teaserSources).map((source) => ({
		src: source.urls.view,
		quality: parseInt(source.format, 10),
	}));

	const trailer = trailerSources && Object.values(trailerSources).map((source) => ({
		src: source.urls.view,
		quality: parseInt(source.format, 10),
	}));

	return { teaser, trailer };
}

function scrapeLatestX(data, site, filterChannel) {
	const release = {
		entryId: data.id,
		title: data.title,
		description: data.description,
	};

	const basepath = getBasePath(site);

	release.url = `${basepath}/${release.entryId}/${slugify(release.title)}`;
	release.date = new Date(data.dateReleased);
	release.duration = data.videos.mediabook?.length > 1 ? data.videos.mediabook.length : null;

	release.actors = data.actors.map((actor) => ({ name: actor.name, gender: actor.gender }));
	release.tags = data.tags.map((tag) => tag.name);

	[release.poster, ...release.photos] = getThumbs(data);

	const { teaser, trailer } = getVideos(data);

	if (teaser) release.teaser = teaser;
	if (trailer) release.trailer = trailer;

	release.chapters = data.timeTags?.map((chapter) => ({
		time: chapter.startTime,
		duration: chapter.endTime - chapter.startTime,
		tags: [chapter.name],
	}));

	if ((site.parameters?.extract === true && data.collections.length > 0) // release should not belong to any channel
		|| (typeof site.parameters?.extract === 'string' && !data.collections.some((collection) => collection.shortName === site.parameters.extract)) // release should belong to specific channel
		|| (filterChannel && !data.collections?.some((collection) => collection.id === site.parameters?.siteId))) { // used to separate upcoming Brazzers scenes
		return {
			...release,
			exclude: true,
		};
	}

	const siteName = data.collections[0]?.name || data.brand;
	release.channel = slugify(siteName, '');

	return release;
}

async function scrapeLatest(items, site, filterChannel) {
	const latestReleases = items.map((data) => scrapeLatestX(data, site, filterChannel));

	return {
		scenes: latestReleases.filter((scene) => !scene.exclude),
		unextracted: latestReleases.filter((scene) => scene.exclude),
	};
}

function scrapeRelease(data, url, channel, networkName) {
	const release = {};

	const { id: entryId, title, description } = data;

	release.entryId = data.id;
	release.title = title;
	release.description = description;

	release.date = new Date(data.dateReleased);
	release.duration = data.videos.mediabook?.length > 1 ? data.videos.mediabook.length : null;

	release.actors = data.actors.map((actor) => ({ name: actor.name, gender: actor.gender }));
	release.tags = data.tags.map((tag) => tag.name);

	[release.poster, ...release.photos] = getThumbs(data);

	const { teaser, trailer } = getVideos(data);

	if (teaser) release.teaser = teaser;
	if (trailer) release.trailer = trailer;

	release.chapters = data.timeTags?.map((chapter) => ({
		time: chapter.startTime,
		duration: chapter.endTime - chapter.startTime,
		tags: [chapter.name],
	}));

	const siteName = data.collections[0]?.name || data.brand;
	release.channel = slugify(siteName, '');

	release.url = url || `https://www.${networkName || data.brand}.com/scene/${entryId}/`;

	if (data.parent?.type === 'movie' || data.parent?.type === 'serie') {
		release[data.parent.type] = {
			entryId: data.parent.id,
			url: `${getBasePath(channel, data.parent.type === 'movie' ? '/movie' : '/series')}/${data.parent.id}/${slugify(data.parent.title, '-', { removePunctuation: true })}`,
			title: data.parent.title,
			description: data.parent.description,
			date: new Date(data.parent.dateReleased),
			channel: slugify(data.parent.collections?.name || data.parent.brand),
			poster: getCovers(data.parent.images, 'poster'),
			shallow: true,
		};
	}

	if (data.type === 'movie') {
		release.covers = getCovers(data.images);
		release.scenes = data.children?.map((scene) => ({
			entryId: scene.id,
			url: `${getBasePath(channel)}/${scene.id}/${slugify(scene.title)}`,
			title: scene.title,
			shallow: true,
		}));
	}

	return release;
}

function getUrl(site) {
	const { searchParams, pathname } = new URL(site.url);

	// if (search.match(/\?site=\d+/)) {
	if (searchParams.has('site') || /\/site\/\d+/.test(pathname)) {
		return site.url;
	}

	if (site.parameters?.native) {
		return `${site.url}/scenes`;
	}

	if (site.parameters?.extract) {
		return `${site.url}/scenes`;
	}

	if (site.parameters?.siteId) {
		return `${site.parent.url}/scenes?site=${site.parameters.siteId}`;
	}

	throw new Error(`Mind Geek site '${site.name}' (${site.url}) not supported`);
}

async function getSession(site, parameters, url) {
	if (site.slug === 'mindgeek' || site.parameters?.parentSession === false) {
		// most MG sites have a parent network to acquire a session from, don't try to acquire session from mindgeek.com for independent channels
		return null;
	}

	const cookieJar = new CookieJar();
	const session = http.session({ cookieJar });

	const sessionUrl = site.parameters?.siteId && !(site.parameters?.native || site.parameters?.childSession || site.parent?.parameters?.childSession)
		? site.parent.url
		: (url || site.url);

	const res = await http.get(sessionUrl, {
		session,
		headers: {
			'Accept-Language': 'en-US,en;', // somehow seems essential for some MG sites
		},
		interval: parameters?.interval,
		concurrency: parameters?.concurrency,
		parse: false,
	});

	if (res.statusCode === 200) {
		const cookieString = await cookieJar.getCookieStringAsync(sessionUrl);
		const { instance_token: instanceToken } = cookie.parse(cookieString);

		if (instanceToken) {
			return { session, instanceToken };
		}
	}

	throw new Error(`Failed to acquire MindGeek session (${res.statusCode})`);
}

function scrapeProfile(data, releases = [], networkName) {
	const profile = {
		description: data.bio,
		aliases: data.aliases.filter(Boolean),
	};

	profile.gender = data.gender === 'other' ? 'transsexual' : data.gender;
	profile.measurements = data.measurements;

	profile.dateOfBirth = qu.parseDate(data.birthday);
	profile.birthPlace = data.birthPlace;
	profile.height = inchesToCm(data.height);
	profile.weight = lbsToKg(data.weight);

	profile.hairColor = data.tags.find((tag) => /hair color/i.test(tag.category))?.name;
	profile.ethnicity = data.tags.find((tag) => /ethnicity/i.test(tag.category))?.name;

	if (data.images.card_main_rect?.[0]) {
		profile.avatar = data.images.card_main_rect[0].xl?.url
            || data.images.card_main_rect[0].lg?.url
            || data.images.card_main_rect[0].md?.url
            || data.images.card_main_rect[0].sm?.url
            || data.images.card_main_rect[0].xs?.url;
	}

	if (data.tags.some((tag) => /boob type/i.test(tag.category) && /natural tits/i.test(tag.name))) {
		profile.naturalBoobs = true;
	}

	if (data.tags.some((tag) => /boob type/i.test(tag.category) && /enhanced/i.test(tag.name))) {
		profile.naturalBoobs = false;
	}

	if (data.tags.some((tag) => /body art/i.test(tag.category) && /tattoo/i.test(tag.name))) {
		profile.hasTattoos = true;
	}

	if (data.tags.some((tag) => /body art/i.test(tag.category) && /piercing/i.test(tag.name))) {
		profile.hasPiercings = true;
	}

	profile.releases = releases.map((release) => scrapeRelease(release, null, null, networkName));

	return profile;
}

async function fetchLatest(site, page = 1, options) {
	const url = getUrl(site);
	const { searchParams, pathname } = new URL(url);
	const siteId = searchParams.get('site') || Number(pathname.match(/\/site\/(\d+)\//)?.[1]);

	if (!siteId && !site.parameters?.native && !site.parameters?.extract) {
		return null;
	}

	const { session, instanceToken } = options.beforeNetwork?.headers?.Instance
		? options.beforeNetwork
		: await getSession(site, options.parameters, url);

	const beforeDate = moment().add('1', 'day').format('YYYY-MM-DD');
	const limit = 24;
	const apiUrl = site.parameters?.native || site.parameters?.extract
		? `https://site-api.project1service.com/v2/releases?dateReleased=<${beforeDate}&limit=${limit}&offset=${limit * (page - 1)}&orderBy=-dateReleased&type=scene`
		: `https://site-api.project1service.com/v2/releases?collectionId=${siteId}&dateReleased=<${beforeDate}&limit=${limit}&offset=${limit * (page - 1)}&orderBy=-dateReleased&type=scene`;

	const res = await http.get(apiUrl, {
		session,
		interval: options.parameters.interval,
		concurrency: options.parameters.concurrency,
		headers: {
			Instance: instanceToken,
			Origin: site.url,
			Referer: url,
			'Accept-Language': 'en-US,en;', // somehow seems essential for some MG sites
		},
	});

	if (res.status === 200 && res.body.result) {
		return scrapeLatest(res.body.result, site);
	}

	return res.statusCode;
}

async function fetchUpcoming(site, page, options) {
	const url = getUrl(site);
	const { session, instanceToken } = await getSession(site, options.parameters);

	const apiUrl = 'https://site-api.project1service.com/v2/upcoming-releases';

	const res = await http.get(apiUrl, {
		session,
		interval: options.parameters.interval,
		concurrency: options.parameters.concurrency,
		headers: {
			Instance: instanceToken,
			Origin: site.url,
			Referer: url,
			'Accept-Language': 'en-US,en;', // somehow seems essential for some MG sites
		},
	});

	if (res.statusCode === 200 && res.body.result) {
		return scrapeLatest(res.body.result, site, true);
	}

	return res.statusCode;
}

async function fetchRelease(url, site, baseScene, options) {
	if (baseScene?.entryId && !baseScene.shallow && !options.parameters.forceDeep) {
		// overview and deep data is the same, don't hit server unnecessarily
		return baseScene;
	}

	const entryId = new URL(url).pathname.match(/\/(\d+)/)?.[1];
	const { session, instanceToken } = options.beforeFetchScenes || await getSession(site, options.parameters);

	const res = await http.get(`https://site-api.project1service.com/v2/releases/${entryId}`, {
		session,
		interval: options.parameters.interval,
		concurrency: options.parameters.concurrency,
		headers: {
			Instance: instanceToken,
			'Accept-Language': 'en-US,en;', // somehow seems essential for some MG sites
		},
	});

	if (res.status === 200 && res.body.result) {
		return {
			scene: scrapeRelease(res.body.result, url, site),
		};
	}

	return null;
}

async function fetchProfile({ name: actorName }, { entity, parameters }, include) {
	// const url = `https://www.${networkOrNetworkSlug.slug || networkOrNetworkSlug}.com`;
	const { session, instanceToken } = await getSession(entity, parameters);

	const res = await http.get(`https://site-api.project1service.com/v1/actors/?search=${encodeURI(actorName)}`, {
		session,
		interval: parameters.interval,
		concurrency: parameters.concurrency,
		headers: {
			Instance: instanceToken,
			'Accept-Language': 'en-US,en;', // somehow seems essential for some MG sites
		},
	});

	if (res.statusCode === 200) {
		const actorData = res.body.result.find((actor) => actor.name.toLowerCase() === actorName.toLowerCase());

		if (actorData) {
			const actorReleasesUrl = `https://site-api.project1service.com/v2/releases?actorId=${actorData.id}&limit=100&offset=0&orderBy=-dateReleased&type=scene`;

			const actorReleasesRes = include.includeActorScenes && await http.get(actorReleasesUrl, {
				session,
				interval: parameters.interval,
				concurrency: parameters.concurrency,
				headers: {
					Instance: instanceToken,
				},
			});

			if (actorReleasesRes.statusCode === 200 && actorReleasesRes.body.result) {
				return scrapeProfile(actorData, actorReleasesRes.body.result, entity.slug);
			}

			return scrapeProfile(actorData, [], entity.slug);
		}
	}

	return null;
}

module.exports = {
	beforeNetwork: getSession,
	beforeFetchScenes: getSession,
	requireBeforeNetwork: false,
	scrapeLatestX,
	fetchLatest,
	fetchUpcoming,
	fetchScene: fetchRelease,
	fetchMovie: fetchRelease,
	fetchProfile,
};