'use strict';

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

function scrapeAll({ query }) {
	const urls = query.urls('td > a:not([href*=joinnow])').map(pathname => `http://killergram.com/${encodeURI(pathname)}`);
	const posters = query.imgs('td > a img');
	const titles = query.all('.episodeheadertext', true);
	const actors = query.all('.episodetextinfo:nth-child(3)').map(el => query.all(el, 'a', true));
	const channels = query.all('.episodetextinfo:nth-child(2) a', true).map(channel => slugify(channel, ''));

	if ([urls.length, posters.length, titles.length, actors.length, channels.length].every((value, index, array) => value === array[0])) { // make sure every set has the same number of items
		const releases = urls.map((url, index) => ({
			url,
			entryId: new URL(url).searchParams.get('id'),
			title: titles[index],
			actors: actors[index],
			channel: channels[index],
			poster: posters[index],
		}));

		return releases;
	}

	return [];
}

function scrapeScene({ query, html }, url) {
	const release = {};

	release.entryId = new URL(url).searchParams.get('id');
	release.date = query.date('.episodetext', 'DD MMMM YYYY', /\d{2} \w+ \d{4}/);

	release.description = query.q('.episodetext tr:nth-child(5) td:nth-child(2)', true);
	release.actors = query.all('.modelstarring a', true);

	const duration = html.match(/(\d+) minutes/)?.[1];
	if (duration) release.duration = Number(duration) * 60;

	[release.poster, ...release.photos] = query.imgs('img[src*="/models"]');

	return release;
}

function scrapeProfile({ query }, actorName) {
	const profile = {};

	profile.releases = scrapeAll({ query }).filter(release => release.actors.includes(actorName));

	return profile;
}

async function fetchLatest(channel, page = 1) {
	const res = await qu.get(`${channel.url}&p=${page}`, '#episodes > table');

	return res.ok ? scrapeAll(res.item, channel) : res.status;
}

async function fetchScene(url, channel) {
	const res = await qu.get(url, '#episodes > table');

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

async function fetchProfile(actorName) {
	const url = `http://killergram.com/episodes.asp?page=episodes&model=${encodeURI(actorName)}&ct=model`;
	const res = await qu.get(url, '#episodes > table');

	return res.ok ? scrapeProfile(res.item, actorName) : res.status;
}

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