'use strict';

const inquirer = require('inquirer');

const logger = require('./logger')(__filename);
const knex = require('./knex');
const argv = require('./argv');
const { flushOrphanedMedia } = require('./media');

const { graphql } = require('./web/graphql');

const releaseFields = `
	id
	entryId
	shootId
	title
	url
	date
	description
	duration
	entity {
		id
		name
		slug
		parent {
			id
			name
			slug
		}
	}
	actors: releasesActors {
		actor {
			id
			name
			slug
			gender
			aliasFor
			entityId
			entryId
		}
	}
	tags: releasesTags {
		tag {
			id
			name
			slug
		}
	}
	chapters(orderBy: TIME_ASC) @include(if: $full) {
		id
		index
		time
		duration
		title
		description
		tags: chaptersTags {
			tag {
				id
				name
				slug
			}
		}
		poster: chaptersPoster {
			media {
				id
				path
				thumbnail
				s3: isS3
				width
				height
				size
			}
		}
		photos: chaptersPhotos {
			media {
				id
				path
				thumbnail
				s3: isS3
				width
				height
				size
			}
		}
	}
	poster: releasesPoster {
		media {
			id
			path
			thumbnail
			s3: isS3
			width
			height
			size
		}
	}
	photos: releasesPhotos @include (if: $full) {
		media {
			id
			path
			thumbnail
			s3: isS3
			width
			height
			size
		}
	}
	trailer: releasesTrailer @include (if: $full) {
		media {
			id
			path
			s3: isS3
			vr: isVr
			quality
			size
		}
	}
	createdAt
`;

function curateRelease(release, withMedia = false, withPoster = true) {
	if (!release) {
		return null;
	}

	return {
		id: release.id,
		...(release.relevance && { relevance: release.relevance }),
		entryId: release.entry_id,
		shootId: release.shoot_id,
		title: release.title,
		url: release.url,
		date: release.date,
		description: release.description,
		duration: release.duration,
		entity: release.entity && {
			id: release.entity.id,
			name: release.entity.name,
			slug: release.entity.slug,
			parent: release.parent && {
				id: release.parent.id,
				name: release.parent.name,
				slug: release.parent.slug,
			},
		},
		actors: (release.actors || []).map((actor) => ({
			id: actor.id,
			name: actor.name,
			slug: actor.slug,
			gender: actor.gender,
			entityId: actor.entity_id,
			aliasFor: actor.alias_for,
		})),
		tags: (release.tags || []).map((tag) => ({
			id: tag.id,
			name: tag.name,
			slug: tag.slug,
		})),
		chapters: (release.chapters || []).map((chapter) => ({
			id: chapter.id,
			index: chapter.index,
			time: chapter.time,
			duration: chapter.duration,
			title: chapter.title,
			description: chapter.description,
		})),
		...((withMedia || withPoster) && {
			poster: release.poster ? {
				id: release.poster.id,
				path: release.poster.path,
				thumbnail: release.poster.thumbnail,
				width: release.poster.width,
				height: release.poster.height,
				size: release.poster.size,
			} : null,
		}),
		...(withMedia && {
			photos: (release.photos || []).map((photo) => ({
				id: photo.id,
				path: photo.path,
				thumbnail: release.poster.thumbnail,
				width: photo.width,
				height: photo.height,
				size: photo.size,
			})),
			trailer: release.trailer ? {
				id: release.trailer.id,
				path: release.trailer.path,
			} : null,
		}),
		createdAt: release.created_at,
	};
}

function curateGraphqlRelease(release) {
	if (!release) {
		return null;
	}

	return {
		id: release.id,
		...(release.relevance && { relevance: release.relevance }),
		entryId: release.entryId,
		shootId: release.shootId,
		title: release.title || null,
		url: release.url || null,
		date: release.date,
		description: release.description || null,
		duration: release.duration,
		entity: release.entity,
		actors: release.actors.map((actor) => actor.actor),
		tags: release.tags.map((tag) => tag.tag),
		...(release.chapters && { chapters: release.chapters.map((chapter) => ({
			...chapter,
			tags: chapter.tags.map((tag) => tag.tag),
			poster: chapter.poster?.media || null,
			photos: chapter.photos.map((photo) => photo.media),
		})) }),
		poster: release.poster?.media || null,
		...(release.photos && { photos: release.photos.map((photo) => photo.media) }),
		trailer: release.trailer?.media || null,
		createdAt: release.createdAt,
	};
}

async function fetchScene(releaseId) {
	const { release } = await graphql(`
		query Release(
			$releaseId: Int!
			$full: Boolean = true
		) {
			release(id: $releaseId) {
				${releaseFields}
			}
		}
	`, {
		releaseId: Number(releaseId),
	});

	return curateGraphqlRelease(release);
}

async function fetchScenes(limit = 100) {
	const { releases } = await graphql(`
		query SearchReleases(
			$limit: Int = 20
			$full: Boolean = false
		) {
			releases(
				first: $limit
				orderBy: DATE_DESC
			) {
				${releaseFields}
			}
		}
	`, {
		limit: Math.min(limit, 10000),
	});

	return releases.map((release) => curateGraphqlRelease(release));
}

async function searchScenes(query, limit = 100, relevance = 0) {
	const { releases } = await graphql(`
		query SearchReleases(
			$query: String!
			$limit: Int = 20
			$relevance: Float = 0.025
			$full: Boolean = false
		) {
			releases: searchReleases(
				query: $query
				first: $limit
				orderBy: RANK_DESC
				filter: {
					rank: {
						greaterThan: $relevance
					}
				}
			) {
				rank
				release {
					${releaseFields}
				}
			}
		}
	`, {
		query,
		limit,
		relevance,
	});

	return releases.map((release) => curateGraphqlRelease({ ...release.release, relevance: release.rank }));
}

async function deleteScenes(sceneIds) {
	if (sceneIds.length === 0) {
		return 0;
	}

	// there can be too many scene IDs for where in, causing a stack depth error
	const deleteCount = await knex('releases')
		.whereRaw('id = ANY(:sceneIds)', { sceneIds })
		.delete();

	logger.info(`Removed ${deleteCount}/${sceneIds.length} scenes`);

	return deleteCount;
}

async function deleteMovies(movieIds) {
	if (movieIds.length === 0) {
		return 0;
	}

	await knex('movies_scenes')
		.whereIn('movie_id', movieIds)
		.delete();

	const deleteCount = await knex('movies')
		.whereIn('id', movieIds)
		.delete();

	logger.info(`Removed ${deleteCount}/${movieIds.length} movies`);

	return deleteCount;
}

async function deleteSeries(serieIds) {
	if (serieIds.length === 0) {
		return 0;
	}

	await knex('series_scenes')
		.whereIn('serie_id', serieIds)
		.delete();

	const deleteCount = await knex('series')
		.whereIn('id', serieIds)
		.delete();

	logger.info(`Removed ${deleteCount}/${serieIds.length} series`);

	return deleteCount;
}

async function flushScenes() {
	const sceneIds = await knex('releases').select('id').pluck('id');

	const confirmed = await inquirer.prompt([{
		type: 'confirm',
		name: 'flushScenes',
		message: `You are about to remove ${sceneIds.length} scenes. Are you sure?`,
		default: false,
	}]);

	if (!confirmed.flushScenes) {
		logger.warn('Confirmation rejected, not flushing scenes');
		return;
	}
	const deleteCount = await deleteScenes(sceneIds);

	if (argv.flushOrphanedMedia !== false) {
		await flushOrphanedMedia();
	}

	logger.info(`Removed ${deleteCount}/${sceneIds.length} scenes`);
}

async function flushMovies() {
	const movieIds = await knex('movies').select('id').pluck('id');

	const confirmed = await inquirer.prompt([{
		type: 'confirm',
		name: 'flushMovies',
		message: `You are about to remove ${movieIds.length} movies. Are you sure?`,
		default: false,
	}]);

	if (!confirmed.flushMovies) {
		logger.warn('Confirmation rejected, not flushing movies');
		return;
	}
	const deleteCount = await deleteMovies(movieIds);

	if (argv.flushOrphanedMedia !== false) {
		await flushOrphanedMedia();
	}

	logger.info(`Removed ${deleteCount}/${movieIds.length} movies`);
}

async function flushSeries() {
	const serieIds = await knex('series').select('id').pluck('id');

	const confirmed = await inquirer.prompt([{
		type: 'confirm',
		name: 'flushSeries',
		message: `You are about to remove ${serieIds.length} series. Are you sure?`,
		default: false,
	}]);

	if (!confirmed.flushSeries) {
		logger.warn('Confirmation rejected, not flushing series');
		return;
	}
	const deleteCount = await deleteSeries(serieIds);

	if (argv.flushOrphanedMedia !== false) {
		await flushOrphanedMedia();
	}

	logger.info(`Removed ${deleteCount}/${serieIds.length} series`);
}

async function flushBatches(batchIds) {
	const [sceneIds, movieIds] = await Promise.all([
		knex('releases')
			.select('releases.id')
			.whereIn('created_batch_id', batchIds)
			.pluck('releases.id'),
		knex('movies').whereIn('created_batch_id', batchIds)
			.select('movies.id')
			.whereIn('created_batch_id', batchIds)
			.pluck('movies.id'),
	]);

	const confirmed = await inquirer.prompt([{
		type: 'confirm',
		name: 'flushBatches',
		message: `You are about to remove ${sceneIds.length} scenes and ${movieIds.length} movies from batches ${batchIds}. Are you sure?`,
		default: false,
	}]);

	if (!confirmed.flushBatches) {
		logger.warn(`Confirmation rejected, not flushing scenes or movies for batches ${batchIds}`);
		return;
	}

	const [deletedScenesCount, deletedMoviesCount] = await Promise.all([
		deleteScenes(sceneIds),
		deleteMovies(movieIds),
	]);

	logger.info(`Removed ${deletedScenesCount} scenes and ${deletedMoviesCount} movies for batches ${batchIds}`);

	if (argv.flushOrphanedMedia !== false) {
		await flushOrphanedMedia();
	}
}

module.exports = {
	curateRelease,
	fetchScene,
	fetchScenes,
	flushBatches,
	flushMovies,
	flushSeries,
	flushScenes,
	searchScenes,
	deleteScenes,
	deleteMovies,
	deleteSeries,
};