import './Products.html';

Tracker.autorun(function() {
	Meteor.subscribe("products");
	Meteor.subscribe("productTags");
});

Template.Products.helpers({
	products: function() {
		let query = Session.get('searchQuery');
		let dbQuery = {};
		
		if(query) {
			_.each(_.keys(query), function(key) {
				if(_.isFunction(query[key])) dbQuery[key] = query[key]();
				else if(_.isObject(query[key])) dbQuery[key] = query[key];
				else if(_.isNumber(query[key])) dbQuery[key] = query[key];
				else dbQuery[key] = {$regex: query[key], $options: 'i'};
			})
		}
		
		return Meteor.collections.Products.find(dbQuery, {limit: 20, sort: {name: 1}});
	}
});

Template.ProductSearch.events({
	"keyup .searchInput": _.throttle(function(event, template) {
		let searchQuery = Session.get('searchQuery') || {};
		let searchFields = Session.get('searchFields') || {};
		let searchValue = template.$('.searchInput').val();
		
		if(searchValue) {
			if(this.number) searchValue = parseFloat(searchValue);
			
			if(this.collection) {
				let ids = Meteor.collections[this.collection].find({[this.collectionQueryColumnName]: {$regex: searchValue, $options: 'i'}}, {fields: {[this.collectionResultColumnName]: 1}}).fetch();
				
				//Convert the ids to an array of ids instead of an array of objects containing an id.
				for(let i = 0; i < ids.length; i++) {ids[i] = ids[i]._id;}
				searchQuery[this.columnName] = {$in: ids};
				searchFields[this.columnName] = searchValue;
			}
			else {
				searchFields[this.columnName] = searchQuery[this.columnName] = searchValue;
			}
		}
		else {
			//Remove columns from the search query whose values are empty so we don't bother the database with them.
			delete searchQuery[this.columnName];
			delete searchFields[this.columnName];
		}
		
		Session.set('searchQuery', searchQuery);
	}, 500)
});

Template.ProductSearch.helpers({
	searchValue: function() {
		let searchFields = Session.get('searchFields');
		
		return (searchFields && searchFields[this.columnName]) ? searchFields[this.columnName] : '';
	}
});

Template.Product.helpers({
	measures: function() {
		let result = "";
		
		if(this.measures && this.measures.length > 0) {
			let measureNames = [];
			
			for(let i = 0; i < this.measures.length; i++) {
				let measureObject = Meteor.collections.Measures.findOne(this.measures[i]);
				
				if(measureObject && measureObject.name)
					measureNames.push(measureObject.name);
			}
			
			result = measureNames.join(", ");
		}
		
		return result;
	},
	tags: function() {
		let result = "";
		
		if(this.tags && this.tags.length > 0) {
			let tagNames = [];
			
			for(let i = 0; i < this.tags.length; i++) {
				let obj = Meteor.collections.ProductTags.findOne(this.tags[i]);
				
				if(obj && obj.name)
					tagNames.push(obj.name);
			}
			
			result = tagNames.join(", ");
		}
		
		return result;
	}
});