<?php

/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */
namespace ggbnportal\widgets;

/**
 * Alert widget renders a message from session flash.
 * All flash messages are displayed
 * in the sequence they were assigned using setFlash. You can set message as following:
 *
 * ```php
 * \Yii::$app->getSession()->setFlash('error', 'This is the message');
 * \Yii::$app->getSession()->setFlash('success', 'This is the message');
 * \Yii::$app->getSession()->setFlash('info', 'This is the message');
 * ```
 *
 * Multiple messages could be set as follows:
 *
 * ```php
 * \Yii::$app->getSession()->setFlash('error', ['Error 1', 'Error 2']);
 * ```
 *
 * @author Kartik Visweswaran <kartikv2@gmail.com>
 * @author Alexander Makarov <sam@rmcreative.ru>
 */
class Alert extends \yii\bootstrap\Widget {
	/**
	 *
	 * @var array the alert types configuration for the flash messages.
	 *      This array is setup as $key => $value, where:
	 *      - $key is the name of the session flash variable
	 *      - $value is the bootstrap alert type (i.e. danger, success, info, warning)
	 */
	public $alertTypes = [ 
			'error' => 'alert-danger',
			'danger' => 'alert-danger',
			'success' => 'alert-success',
			'info' => 'alert-info',
			'warning' => 'alert-warning' 
	];
	
	/**
	 *
	 * @var array the options for rendering the close button tag.
	 */
	public $closeButton = [ ];
	public function init() {
		parent::init ();
		
		$session = \Yii::$app->getSession ();
		$flashes = $session->getAllFlashes ();
		$appendCss = isset ( $this->options ['class'] ) ? ' ' . $this->options ['class'] : '';
		
		foreach ( $flashes as $type => $data ) {
			if (isset ( $this->alertTypes [$type] )) {
				$data = ( array ) $data;
				foreach ( $data as $i => $message ) {
					/* initialize css class for each alert box */
					$this->options ['class'] = $this->alertTypes [$type] . $appendCss;
					
					/* assign unique id to each alert box */
					$this->options ['id'] = $this->getId () . '-' . $type . '-' . $i;
					
					echo \yii\bootstrap\Alert::widget ( [ 
							'body' => $message,
							'closeButton' => $this->closeButton,
							'options' => $this->options 
					] );
				}
				
				$session->removeFlash ( $type );
			}
		}
	}
}