'use strict';

const bhttp = require('bhttp');

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

const clusterId = '617fb597b659459bafe6472470d9073a';
const authKey = 'YmFuZy1yZWFkOktqVDN0RzJacmQ1TFNRazI=';

const genderMap = {
	M: 'male',
	F: 'female',
};

function getScreenUrl(item, scene) {
	return `https://i.bang.com/screenshots/${scene.dvd.id}/movie/${scene.order}/${item.screenId}.jpg`;
}

function encodeId(id) {
	return Buffer
		.from(id, 'hex')
		.toString('base64')
		.replace(/\+/g, '-')
		.replace(/\//g, '_')
		.replace(/=/g, ',');
}

function decodeId(id) {
	const restoredId = id
		.replace(/-/g, '+')
		.replace(/_/g, '/')
		.replace(/,/g, '=');

	return Buffer
		.from(restoredId, 'base64')
		.toString('hex');
}

function scrapeScene(scene, site) {
	const release = {
		site,
		entryId: scene.id,
		title: scene.name,
		description: scene.description,
		tags: scene.genres.concat(scene.actions).map(genre => genre.name),
		duration: scene.duration,
	};

	const slug = slugify(release.title);
	release.url = `https://www.bang.com/video/${encodeId(release.entryId)}/${slug}`;

	const date = new Date(scene.releaseDate);
	release.date = new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate()));

	release.actors = scene.actors.map(actor => ({ name: actor.name, gender: genderMap[actor.gender] }));

	if (scene.is4k) release.tags.push('4k');
	if (scene.gay) release.tags.push('gay');

	const defaultPoster = scene.screenshots.find(photo => photo.default === true);
	const photoset = scene.screenshots.filter(photo => photo.default === false);

	const photos = defaultPoster ? photoset : photoset.slice(1);
	const poster = defaultPoster || photoset[0];

	release.poster = getScreenUrl(poster, scene);
	release.photos = photos.map(photo => getScreenUrl(photo, scene));

	release.trailer = {
		src: `https://i.bang.com/v/${scene.dvd.id}/${scene.identifier}/preview.mp4`,
	};

	release.channel = scene.series.name
		.replace(/[! .]/g, '')
		.replace('&', 'and');

	return release;
}

function scrapeLatest(scenes, site) {
	return scenes.map(({ _source: scene }) => scrapeScene(scene, site));
}

async function fetchLatest(site, page = 1) {
	const res = await bhttp.post(`https://${clusterId}.us-east-1.aws.found.io/videos/video/_search`, {
		size: 50,
		from: (page - 1) * 50,
		query: {
			bool: {
				must: [
					{
						match: {
							status: 'ok',
						},
					},
					{
						range: {
							releaseDate: {
								lte: 'now',
							},
						},
					},
					/*
                     * global fetch
                    {
                        nested: {
                            path: 'studio',
                            query: {
                                bool: {
                                    must: [
                                        {
                                            match: {
                                                'studio.name': {
                                                    operator: 'AND',
                                                    query: 'bang! originals',
                                                },
                                            },
                                        },
                                    ],
                                },
                            },
                        },
                    },
                    */
					{
						nested: {
							path: 'series',
							query: {
								bool: {
									must: [
										{
											match: {
												'series.id': {
													operator: 'AND',
													query: site.parameters.siteId,
												},
											},
										},
									],
								},
							},
						},
					},
				],
				must_not: [
					{
						match: {
							type: 'trailer',
						},
					},
				],
			},
		},
		sort: [
			{
				releaseDate: {
					order: 'desc',
				},
			},
		],
	}, {
		encodeJSON: true,
		headers: {
			Authorization: `Basic ${authKey}`,
		},
	});

	return scrapeLatest(res.body.hits.hits, site);
}

async function fetchScene(url, site) {
	const encodedId = new URL(url).pathname.split('/')[2];
	const entryId = decodeId(encodedId);

	const res = await bhttp.get(`https://${clusterId}.us-east-1.aws.found.io/videos/video/${entryId}`, {
		headers: {
			Authorization: `Basic ${authKey}`,
		},
	});

	return scrapeScene(res.body._source, site); // eslint-disable-line no-underscore-dangle
}

module.exports = {
	fetchLatest,
	fetchScene,
};