<?php

namespace Grain\Iiko;

use \Bitrix\Main\Localization\Loc;	
use \Bitrix\Main\Web\Json;
use \Bitrix\Main\Loader;
use \Grain\Iiko\Restaurants;

Loc::loadMessages(__FILE__);

class Size
{
	const basketPropCode = 'GRAIN.IIKO.S';
	
	public static function get($element, \Bitrix\Sale\BasketItem $item=null)
	{
		$sizes = array();
		static $cache = array();
		if(!is_array($element) || !is_array($element['PROPERTIES']) || count($element['PROPERTIES'])<=0)
		{
			$elementId = is_array($element) && isset($element['ID'])?intval($element['ID']):intval($element);
			if($elementId<=0 || !Loader::includeModule('iblock'))
				return $sizes;
			if(array_key_exists($elementId, $cache))
			{
				$element = $cache[$elementId];
			}
			else
			{
				$result = \Bitrix\Iblock\ElementTable::getList(array(
					'filter' => array('=ID'=>$elementId),
					'limit' => 1,
					'select' => array("ID", "IBLOCK_ID"),
				));
				if(!$el=$result->fetch())
					return $sizes;
		    	$resultElement = \CIBlockElement::GetList(array(), array(
		    		"IBLOCK_ID" => $el['IBLOCK_ID'], 
		    		"=ID" => $el['ID']
		    	), false, false, array(
			    	"ID", 
			    	"IBLOCK_ID", 
			    	"PROPERTY_sizes")
		    	);
			
		    	if (!$ob = $resultElement->GetNextElement())
		    		return $sizes;
		    	$element = $ob->GetFields();
		    	$element['PROPERTIES'] = array('sizes'=>$ob->GetProperty('sizes'));
				$cache[$elementId] = $element;
			}
		}

		if(!is_array($element['PROPERTIES']['sizes']) || !is_array($element['PROPERTIES']['sizes']['~VALUE']))
			return $sizes;
			
		foreach($element['PROPERTIES']['sizes']['~VALUE'] as $sz)
		{
			try 
			{
				$size = Json::decode(trim($sz));
				$sizes[] = $size;
			} 
			catch (\Exception $e) 
			{
				//$e->getMessage();
			}	
		}
		
		if($item)
		{
			$basketProps = self::getBasketPropertyValues($item);
			$hasSize = false;
			foreach($sizes as &$size)
			{
				if($basketProps[self::basketPropCode]==$size['sizeId'])
				{
					$hasSize = true;
					$size['selected'] = true;
				}
				else
				{
					$size['selected'] = false;
				}
			}
			unset($size);
			if(!$hasSize)
			{
				foreach($sizes as &$size)
				{
					if($size['s']['isDefault'])
					{
						$size['selected'] = true;
						$hasSize = true;
					}
				}
				unset($size);
			}
			if(!$hasSize)
			{
				foreach($sizes as &$size)
				{
					$size['selected'] = true;
					$hasSize = true;
					break;
				}
				unset($size);
			}
		}
		return $sizes;
	}

	public static function getDefaultSelected($productId)
	{
		$defaultSizeId = self::getDefaultId($productId);
		$sizes = self::get($productId);
		foreach($sizes as &$size)
			$size['selected'] = $size['sizeId']==$defaultSizeId;
		unset($size);
		return $sizes;
	}

	public static function getSelectedSize($element, \Bitrix\Sale\BasketItem $item)
	{
		$sizes = self::get($element,$item);
		foreach($sizes as $size)
		{
			if(!$size['selected'])
				continue;
			return $size;
		}
		return null;
	}
	
	public static function setSize(\Bitrix\Sale\BasketItem $item,$sizeId)
	{
		$sizes = self::get($item->getProductId());
		$currentSize = false;
		foreach($sizes as $size)
		{
			if($size['sizeId']!=$sizeId)
				continue;
			$currentSize = $size;
			break;
		}
		if($currentSize) 
		{
			$name = $currentSize['sizeId'];
			foreach($sizes as $size)
			{
				if($size['sizeId']!=$currentSize['sizeId'])
					continue;
				$name = $size['s']['name'];
				break;
			}
			self::saveBasketProperty($item,self::basketPropCode,$currentSize['sizeId'],$name);
		}
		else
		{
			self::deleteBasketProperty($item,self::basketPropCode);
		}
		
		return $changeModifiersQuantity;
	}
	
	public static function getBasketPropertyValue(\Bitrix\Sale\BasketItem $item,$code)
	{
		foreach ($item->getPropertyCollection() as $property)
		{
			if($property->getField('CODE')!=$code)
				continue;
			return $property->getField('VALUE');
		}
		return false;
	}

	public static function getBasketPropertyValues(\Bitrix\Sale\BasketItem $item)
	{
		$values = array();
		foreach ($item->getPropertyCollection() as $property)
			$values[$property->getField('CODE')] = $property->getField('VALUE');
		return $values;
	}

	public static function saveBasketProperty(\Bitrix\Sale\BasketItem $item,$code,$value=false,$name=false,$sort=false,$xmlId=false)
	{
		foreach ($item->getPropertyCollection() as $property)
		{
			if($property->getField('CODE')!=$code)
				continue;
			if($value!==false)
				$property->setField('VALUE', $value);
			if($name!==false)
				$property->setField('NAME', $name);			
			if($sort!==false)
				$property->setField('SORT', $sort);			
			if($xmlId!==false)
				$property->setField('XML_ID', $xmlId);			
			return;
		}
		$property = $item->getPropertyCollection()->createItem();
		$property->setField('CODE', strval($code));
		$property->setField('VALUE', strval($value));
		$property->setField('NAME', strval($name));
		$property->setField('SORT', $sort!==false?$sort:'100');
		if($xmlId!==false)
			$property->setField('XML_ID', $xmlId);			
	}

	public static function deleteBasketProperty(\Bitrix\Sale\BasketItem $item,$code)
	{
		foreach ($item->getPropertyCollection() as $property)
		{
			if($property->getField('CODE')!=$code)
				continue;
			$property->delete();
			return;
		}
	}
	
	public static function getDefault($productId)
	{
		$sizes = self::get($productId);
		foreach($sizes as $size)
		{
			if(!isset($size['s']['isDefault']) || !$size['s']['isDefault'])
				continue;
			return $size;
		}
		foreach($sizes as $size)
		{
			return $size;
		}
		return null;
	}

	public static function getDefaultId($productId)
	{
		$defaultSize = self::getDefault($productId);
		if(is_array($defaultSize) && isset($defaultSize['sizeId']))
			return $defaultSize['sizeId'];
		return null;
	}
	
	public static function compact($productSizesFull)
	{
		$size = array();
		if(!is_array($productSizesFull))
			return array();
		foreach($productSizesFull as $sizeFull)
		{
			if(!isset($sizeFull['price']['currentPrice']))
				continue;
			$size[$sizeFull['sizeId']] = array(
				'name' => isset($sizeFull['s']['name'])?$sizeFull['s']['name']:'',
				'price' => floatval($sizeFull['price']['currentPrice']),
			);
		}
		return $size;
	}
}