'use strict';

const unprint = require('unprint');

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

		release.entryId = query.attribute(null, 'video-id');

		const url = query.url(null);

		if (url) {
			const { origin, pathname, searchParams } = new URL(url);

			release.url = `${origin}${pathname}`;
			release.shootId = pathname.match(/((LA)|(LT)|(MA)|(MD)|(MM)|(MS)|(MT)|(RR))[\w-]+/)?.[0]; // pathname sometimes contains other text, match at least two letters to prevent false positives

			release.actors = searchParams.get('models_name')?.split(',').map((actor) => {
				const [han, english] = actor.split('/').map((name) => name.trim());

				if (/amateur/i.test(english)) {
					// not a name
					return null;
				}

				return {
					name: english || han,
					alias: english && han,
				};
			}).filter(Boolean);
		}

		const rawTitle = query.content('.video-title div')?.replace(release.shootId, '');

		if (rawTitle) {
			// find / closest to Han in case there are multiple, account for no / at all
			const hanIndex = rawTitle.match(/\p{Script_Extensions=Han}/u)?.index;
			const splitIndex = rawTitle.slice(0, hanIndex).lastIndexOf('/') || hanIndex;

			if (hanIndex && splitIndex > -1) {
				release.title = rawTitle.slice(0, splitIndex).trim();
				release.altTitles = [rawTitle.slice(splitIndex + 1).trim()];
			} else {
				release.title = rawTitle;
			}
		}

		release.duration = query.duration('.timestamp');

		const poster = query.img('img', { attribute: 'data-src' });

		if (poster) {
			release.poster = [
				poster.replace(/w=\d+/, 'w=1920').replace(/h=\d+/, 'h=1080'),
				poster,
			];
		}

		release.teaser = query.video(null, { attribute: 'data-video-src' });

		return release;
	});
}

function scrapeProfile({ query }) {
	const profile = {};
	const avatar = query.img('div[class*="prof-pic"] > img');

	if (avatar) {
		profile.avatar = [
			avatar.replace(/w=\d+/, 'w=720').replace(/h=\d+/, 'h=1080'),
			avatar,
		];
	}

	profile.description = query.content('h2') || null;
	profile.height = query.number('//span[text()="Height"]/following-sibling::span', { match: /(\d+) cm/, matchIndex: 1 });
	profile.weight = query.number('//span[text()="Weight"]/following-sibling::span', { match: /(\d+) kg/, matchIndex: 1 });

	// can't find a single profile wiht this information available, but add for good measure
	profile.measurements = query.content('//span[text()="Measurements"]/following-sibling::span');
	profile.birthPlace = query.number('//span[text()="Birth Place"]/following-sibling::span');

	profile.banner = query.img('div[class*="banner"] > img');
	profile.photos = query.imgs('#MusModelSwiper img');

	return profile;
}

async function getCookie(channel) {
	const tokenRes = await unprint.get(channel.url);

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

	const csrfToken = tokenRes.context?.query.attribute('meta[name="csrf-token"]', 'content');
	const cookie = tokenRes.response.headers['set-cookie']?.join(';');

	if (!csrfToken || !cookie) {
		return null;
	}

	const confirmAdultRes = await unprint.post(`${channel.url}/adult_confirmation_and_accept_cookie`, null, {
		headers: {
			cookie,
			'x-csrf-token': csrfToken,
		},
	});

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

	return cookie;
}

async function fetchLatest(channel, page) {
	const cookie = await getCookie(channel);

	const res = await unprint.get(`${channel.url}/videos?sort=published_at&page=${page}`, {
		selectAll: '.row a[video-id]',
		headers: {
			cookie,
		},
	});

	if (res.ok) {
		return scrapeAll(res.context, channel);
	}

	return res.status;
}

// deep pages are paywalled

async function searchProfile(actor, context, cookie) {
	const searchRes = await unprint.get(`${context.channel.url}/livesearch?keyword=${actor.name}`, {
		headers: {
			cookie,
		},
	});

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

	return searchRes.context.query.url(`a[title="${actor.name}"]`);
}

async function fetchProfile(actor, context) {
	const cookie = await getCookie(context.entity);
	const actorUrl = actor.url || await searchProfile(actor, context, cookie);

	if (!actorUrl) {
		return null;
	}

	const res = await unprint.get(actorUrl, {
		headers: {
			cookie,
		},
	});

	if (res.ok) {
		return scrapeProfile(res.context, actorUrl);
	}

	return null;
}

module.exports = {
	fetchLatest,
	fetchProfile,
};