/************************************************************************
 * This file is part of EspoCRM.
 *
 * EspoCRM - Open Source CRM application.
 * Copyright (C) 2014  Yuri Kuznetsov, Taras Machyshyn, Oleksiy Avramenko
 * Website: http://www.espocrm.com
 *
 * EspoCRM is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * EspoCRM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
 ************************************************************************/ 

Espo.define('Views.Fields.Array', 'Views.Fields.Enum', function (Dep) {

	return Dep.extend({

		type: 'array',

		listTemplate: 'fields.array.detail',

		detailTemplate: 'fields.array.detail',

		editTemplate: 'fields.array.edit',
		
		data: function () {
			return _.extend({
				selected: this.selected,
				translatedOptions: this.translatedOptions,
				hasOptions: this.params.options ? true : false
			}, Dep.prototype.data.call(this));
		},
		
		events: {
			'click [data-action="removeValue"]': function (e) {
				var value = $(e.currentTarget).data('value');
				this.removeValue(value);
			},
			'click [data-action="showAddModal"]': function () {			
				var options = [];
				
				this.params.options.forEach(function (item) {
					if (!~this.selected.indexOf(item)) {
						options.push(item);
					}
				}, this);
				this.createView('addModal', 'Modals.ArrayFieldAdd', {
					options: options,
					translatedOptions: this.translatedOptions					
				}, function (view) {
					view.render();
					this.listenToOnce(view, 'add', function (item) {
						this.addValue(item);
						view.close();
					}.bind(this));
				}.bind(this));
			}
		},

		setup: function () {
			Dep.prototype.setup.call(this);			
			
			var t = {};
			
			if (this.params.translation) {
				var data = this.getLanguage().data;
				var arr = this.params.translation.split('.');
				var pointer = this.getLanguage().data;
				arr.forEach(function (key) {
					if (key in pointer) {
						pointer = pointer[key];
						t = pointer;
					}
				}, this);
			} else {
				t = this.translate(this.name, 'options', this.model.name);
			}
			
			this.listenTo(this.model, 'change:' + this.name, function () {
				this.selected = this.model.get(this.name);
			}, this);					
			

			this.translatedOptions = null;			
					
			var translatedOptions = {};
			if (this.params.options) {
				this.params.options.forEach(function (o) {
					if (typeof t === 'object' && o in t) {
						translatedOptions[o] = t[o];
					} else {
						translatedOptions[o] = o;
					}
				}.bind(this));
				this.translatedOptions = translatedOptions;
			}			
			
			this.selected = _.clone(this.model.get(this.name) || []);
			if (Object.prototype.toString.call(this.selected) !== '[object Array]')	{
				this.selected = [];	
			}
		},
		
		afterRender: function () {
			this.$list = this.$el.find('.list-group');
			var $select = this.$select = this.$el.find('.select');
			
			if (!this.params.options) {				
				$select.on('keypress', function (e) {
					if (e.keyCode == 13) {
						var value = $select.val();
						this.addValue(value);
						$select.val('');

					}
				}.bind(this));
			}
			
			this.$list.sortable({
				stop: function () {
					this.trigger('change');	
				}.bind(this)
			});	
		},
		
		getValueForDisplay: function () {
			return this.selected.join(', ');
		},
		
		addValue: function (value) {		
			for (var item in this.translatedOptions) {
				if (this.translatedOptions[item] == value) {
					value = item;
					break;
				}
			}
		
			if (this.selected.indexOf(value) == -1) {
			
				var label = value;
				if (this.translatedOptions) {
					label = ((value in this.translatedOptions) ? this.translatedOptions [value]: value);
				}	
				var html = '<div class="list-group-item" data-value="' + value + '">' + label +	
				'&nbsp;<a href="javascript:" class="pull-right" data-value="' + value + '" data-action="removeValue"><span class="glyphicon glyphicon-remove"></a>' +
				'</div>';
				this.$list.append(html);
				this.selected.push(value);
				this.trigger('change');
			}		
		},
		
		removeValue: function (value) {
			this.$list.children('[data-value="' + value + '"]').remove();
			var index = this.selected.indexOf(value);
			this.selected.splice(index, 1);
			this.trigger('change');
		},	

		fetch: function () {
			var $li = this.$el.find('.list-group').children('.list-group-item');
			var value = [];
			$li.each(function (i, li) {
				value.push($(li).data('value'));
			});				
			var data = {};
			data[this.name] = value;
			return data;
		},
		
		validateRequired: function () {				
			if (this.model.isRequired(this.name)) {
				var value = this.model.get(this.name);
				if (!value || value.length == 0) {
					var msg = this.translate('fieldIsRequired', 'messages').replace('{field}', this.translate(this.name, 'fields', this.model.name));
					this.showValidationMessage(msg);
					return true;
				}
			}
		},

	});
});