import knex from './knex.js';
import { searchApi } from './manticore.js';
import { HttpError } from './errors.js';
import { curateActor, sortActorsByGender } from './actors.js';

function curateMedia(media) {
	if (!media) {
		return null;
	}

	return {
		id: media.id,
		path: media.path,
		thumbnail: media.thumbnail,
		lazy: media.lazy,
		isS3: media.is_s3,
		width: media.width,
		height: media.height,
	};
}

function curateScene(rawScene, assets) {
	if (!rawScene) {
		return null;
	}

	return {
		id: rawScene.id,
		title: rawScene.title,
		slug: rawScene.slug,
		url: rawScene.url,
		date: rawScene.date,
		createdAt: rawScene.created_at,
		effectiveDate: rawScene.effective_date,
		description: rawScene.description,
		duration: rawScene.duration,
		channel: {
			id: assets.channel.id,
			slug: assets.channel.slug,
			name: assets.channel.name,
			type: assets.channel.type,
			isIndependent: assets.channel.independent,
			hasLogo: assets.channel.has_logo,
		},
		network: assets.channel.network_id ? {
			id: assets.channel.network_id,
			slug: assets.channel.network_slug,
			name: assets.channel.network_name,
			type: assets.channel.network_type,
			hasLogo: assets.channel.has_logo,
		} : null,
		actors: sortActorsByGender(assets.actors.map((actor) => curateActor(actor, { sceneDate: rawScene.effective_date }))),
		directors: assets.directors.map((director) => ({
			id: director.id,
			slug: director.slug,
			name: director.name,
		})),
		tags: assets.tags.map((tag) => ({
			id: tag.id,
			slug: tag.slug,
			name: tag.name,
		})),
		poster: curateMedia(assets.poster),
		photos: assets.photos.map((photo) => curateMedia(photo)),
		createdBatchId: rawScene.created_batch_id,
		updatedBatchId: rawScene.updated_batch_id,
	};
}

function curateOptions(options) {
	if (options?.limit > 100) {
		throw new HttpError('Limit must be <= 100', 400);
	}

	return {
		limit: options.limit || 30,
	};
}

export async function fetchScenesById(sceneIds) {
	const [scenes, channels, actors, directors, tags, posters, photos] = await Promise.all([
		knex('releases').whereIn('id', sceneIds),
		knex('releases')
			.select('channels.*', 'networks.id as network_id', 'networks.slug as network_slug', 'networks.name as network_name', 'networks.type as network_type')
			.whereIn('releases.id', sceneIds)
			.leftJoin('entities as channels', 'channels.id', 'releases.entity_id')
			.leftJoin('entities as networks', 'networks.id', 'channels.parent_id')
			.groupBy('channels.id', 'networks.id'),
		knex('releases_actors')
			.select(
				'actors.*',
				'releases_actors.release_id',
				'avatars.id as avatar_id',
				'avatars.path as avatar_path',
				'avatars.thumbnail as avatar_thumbnail',
				'avatars.lazy as avatar_lazy',
				'avatars.width as avatar_width',
				'avatars.height as avatar_height',
				'avatars.is_s3 as avatar_s3',
				'birth_countries.alpha2 as birth_country_alpha2',
				'birth_countries.name as birth_country_name',
				'residence_countries.alpha2 as residence_country_alpha2',
				'residence_countries.name as residence_country_name',
			)
			.whereIn('release_id', sceneIds)
			.leftJoin('actors', 'actors.id', 'releases_actors.actor_id')
			.leftJoin('media as avatars', 'avatars.id', 'actors.avatar_media_id')
			.leftJoin('countries as birth_countries', 'birth_countries.alpha2', 'actors.birth_country_alpha2')
			.leftJoin('countries as residence_countries', 'residence_countries.alpha2', 'actors.residence_country_alpha2'),
		knex('releases_directors')
			.whereIn('release_id', sceneIds)
			.leftJoin('actors as directors', 'directors.id', 'releases_directors.director_id'),
		knex('releases_tags')
			.select('id', 'slug', 'name', 'release_id')
			.whereNotNull('tags.id')
			.whereIn('release_id', sceneIds)
			.leftJoin('tags', 'tags.id', 'releases_tags.tag_id'),
		knex('releases_posters')
			.whereIn('release_id', sceneIds)
			.leftJoin('media', 'media.id', 'releases_posters.media_id'),
		knex('releases_photos')
			.whereIn('release_id', sceneIds)
			.leftJoin('media', 'media.id', 'releases_photos.media_id'),
	]);

	return sceneIds.map((sceneId) => {
		const scene = scenes.find((sceneEntry) => sceneEntry.id === sceneId);

		if (!scene) {
			return null;
		}

		const sceneChannel = channels.find((entity) => entity.id === scene.entity_id);
		const sceneActors = actors.filter((actor) => actor.release_id === sceneId);
		const sceneDirectors = directors.filter((director) => director.release_id === sceneId);
		const sceneTags = tags.filter((tag) => tag.release_id === sceneId);
		const scenePoster = posters.find((poster) => poster.release_id === sceneId);
		const scenePhotos = photos.filter((photo) => photo.release_id === sceneId);

		return curateScene(scene, {
			channel: sceneChannel,
			actors: sceneActors,
			directors: sceneDirectors,
			tags: sceneTags,
			poster: scenePoster,
			photos: scenePhotos,
		});
	}).filter(Boolean);
}

export async function fetchLatest(page, rawOptions) {
	const { limit } = curateOptions(rawOptions);

	const result = await searchApi.search({
		index: 'scenes',
		query: {
			bool: {
				must: [
					{
						range: {
							effective_date: {
								lte: Math.round(Date.now() / 1000),
							},
						},
					},
				],
				/*
				must_not: [
					{
						in: {
							'any(tag_ids)': [101, 180, 32],
						},
					},
				],
				*/
			},
		},
		limit,
		offset: (page - 1) * limit,
		sort: [{ effective_date: 'desc' }],
	});

	const sceneIds = result.hits.hits.map((hit) => Number(hit._id));
	const scenes = await fetchScenesById(sceneIds);

	return {
		scenes,
		total: result.hits.total,
		limit,
	};
}

export async function fetchUpcoming(page, rawOptions) {
	const { limit } = curateOptions(rawOptions);

	const result = await searchApi.search({
		index: 'scenes',
		query: {
			bool: {
				must: [
					{
						range: {
							effective_date: {
								gt: Math.round(Date.now() / 1000),
							},
						},
					},
				],
			},
		},
		limit,
		offset: (page - 1) * limit,
		sort: [{ effective_date: 'asc' }],
	});

	const sceneIds = result.hits.hits.map((hit) => Number(hit._id));
	const scenes = await fetchScenesById(sceneIds);

	return {
		scenes,
		total: result.hits.total,
		limit,
	};
}

export async function fetchNew(page, rawOptions) {
	const { limit } = curateOptions(rawOptions);

	const result = await searchApi.search({
		index: 'scenes',
		limit,
		offset: (page - 1) * limit,
		sort: [{ created_at: 'desc' }, { effective_date: 'asc' }],
	});

	const sceneIds = result.hits.hits.map((hit) => Number(hit._id));
	const scenes = await fetchScenesById(sceneIds);

	return {
		scenes,
		total: result.hits.total,
		limit,
	};
}