'use strict';

const { makeExtendSchemaPlugin, gql } = require('graphile-utils');

function isFavorited(parent) {
	if (!parent['@stashes'] || (parent['@stashes'].length > 0 && typeof parent['@stashes'][0]['@stash'].primary === 'undefined')) {
		return null;
	}

	return parent['@stashes'].some(({ '@stash': stash }) => stash.primary);
}

function isStashed(parent, args) {
	if (!parent['@stashes'] || (parent['@stashes'].length > 0 && typeof parent['@stashes'][0]['@stash'].primary === 'undefined')) {
		return null;
	}

	if (args.includeFavorites) {
		return parent['@stashes'].length > 0;
	}

	return parent['@stashes'].some(({ '@stash': stash }) => !stash.primary);
}

const schemaExtender = makeExtendSchemaPlugin(_build => ({
	typeDefs: gql`
	  extend type Release {
		  isFavorited: Boolean @requires(columns: ["stashesScenesBySceneId"])
		  isStashed(includeFavorites: Boolean = false): Boolean @requires(columns: ["stashesScenesBySceneId"])
	  }

	  extend type Movie {
		  isFavorited: Boolean @requires(columns: ["stashesMovies"])
		  isStashed(includeFavorites: Boolean = false): Boolean @requires(columns: ["stashesMovies"])
	  }
    `,
	resolvers: {
		Release: {
			isFavorited,
			isStashed,
		},
		Movie: {
			isFavorited,
			isStashed,
		},
	},
}));

module.exports = [schemaExtender];