'use strict';

const unprint = require('unprint');
const slugify = require('../utils/slugify');

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

		release.title = query.content('h4 a');
		release.url = query.url('h4 a');
		release.date = unprint.extractDate(html, 'MM/DD/YYYY', { match: /\d{2}\/\d{2}\/\d{4}/ });

		release.actors = query.contents('.tour_update_models a');

		// native videothumb entry ID does not occur on scene page, date is not available on all sites
		release.entryId = slugify([...[].concat(release.actors || []).sort(), release.title]);

		release.poster = query.dataset('.video_placeholder', 'src');
		release.teaser = query.video();

		return release;
	});
}

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

		release.url = query.url('a');

		release.title = query.content('.update_title_small') || query.content('a:nth-child(2)');
		release.description = query.attribute('a', 'title');

		release.date = query.date('.date_small, .update_date', 'MM/DD/YYYY');

		release.duration = query.number('.update_counts') * 60;

		const actors = query.contents('.update_models a');

		release.actors = actors.length === 0
			? query.content('.update_models')?.split(/,\s*/) // not all entries have models listed
			: actors;

		// native videothumb entry ID does not occur on scene page, date is not available on all sites
		release.entryId = slugify([...[].concat(release.actors || []).sort(), release.title]);

		const photoCount = query.number('.update_thumb', { attribute: 'cnt' });

		[release.poster, ...release.photos] = Array.from({ length: photoCount })
			.map((value, index) => query.attribute('.update_thumb', `src${index}_3x`)
                || query.attribute('.update_thumb', `src${index}_2x`)
                || query.attribute('.update_thumb', `src${index}_1x`));

		return release;
	});
}

function scrapeSceneBlock({ query }) {
	const release = {};

	release.title = query.content('.indScene h2, .indScene h1');
	release.description = query.content('.description');
	release.date = query.date('.sceneDateP span', 'MM/DD/YYYY');

	release.actors = query.all('.sceneTextLink .tour_update_models a').map((actorEl) => ({
		name: unprint.query.content(actorEl),
		url: unprint.query.url(actorEl, null),
	}));

	release.duration = query.number('.sceneDateP', { match: /(\d+)\s+min/i, matchIndex: 1 }) * 60;
	release.entryId = slugify([...release.actors.map((actor) => actor.name).sort(), release.title]);

	release.stars = query.number('.sceneRating');

	release.poster = query.img('#trailer_thumb img[src*=content]');
	release.trailer = query.video('#trailerVideo source');

	release.photoCount = query.number('.sceneDateP', { match: /(\d+)\s+(photo|pic)/i, matchIndex: 1 });

	return release;
}

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

	if (res.ok) {
		return res.context.query.imgs('.grid-gallery img');
	}

	return [];
}

async function scrapeSceneClassic({ query }, context, options) {
	const release = {};

	release.title = query.content('.update_title');
	release.description = query.content('.update_description');
	release.date = query.date('.update_date', 'MM/DD/YYYY');

	release.actors = query.all('.update_models a').map((actorEl) => ({
		name: unprint.query.content(actorEl),
		url: unprint.query.url(actorEl, null),
	}));

	release.entryId = slugify([...release.actors.map((actor) => actor.name).sort(), release.title]);

	release.tags = query.contents('.update_tags a');
	release.stars = query.number('.gallery_info', { match: /average\s+rating:\s+(\d+\.\d+)/i, matchIndex: 1 });

	release.poster = query.img('#vidplayer', { attribute: 'poster' }) || query.img('#postroll_url img');
	release.trailer = query.video('#vidplayer source');

	const gallery = query.url('//a[img[contains(@src, "gallery.gif")]]');

	if (gallery && options.includePhotos) {
		release.photos = await fetchPhotos(gallery);
	}

	return release;
}

async function fetchLatest(site, page = 1) {
	const url = `${site.url}/tour_${site.parameters.siteId}/categories/movies_${page}_d.html`;
	const res = await unprint.get(url, { selectAll: '.movieBlock, .videoBlock, .update_details, .update_details' });

	return res;
}

async function fetchLatestClassic(site, page) {
	if (!site.parameters) {
		return null;
	}

	const res = await fetchLatest(site, page);

	if (res.ok) {
		return scrapeLatestClassic(res.context, site);
	}

	return res.status;
}

async function fetchLatestBlock(site, page) {
	if (!site.parameters) {
		return null;
	}

	const res = await fetchLatest(site, page);

	if (res.ok) {
		return scrapeLatestBlock(res.context, site);
	}

	return res.status;
}

module.exports = {
	fetchLatest: fetchLatestClassic,
	scrapeScene: scrapeSceneClassic,
	useUnprint: true,
	block: {
		scrapeScene: scrapeSceneBlock,
		fetchLatest: fetchLatestBlock,
		useUnprint: true,
	},
};