<?php

/**
 *
 * @author Tomáš Naibrt
 */
class Basket 
{
    /**
     * @var array
     */
    protected $items = array();
    
    public $note;
    
    /**
     * Vytvoří objednávku
     * 
     * @return Invoice 
     */
    public function saveInvoice(sfGuardUser $user, sfGuardUser $representant = null)
    {
        $invoice = new Invoice();
        
        $address = $user->getAddress();
        
        $invoice->setStreet($address->getStreet());
        $invoice->setCity($address->getCity());
        $invoice->setZip($address->getZip());
        $invoice->setIc($address->getIc());
        $invoice->setDic($address->getDic());
        
        $invoice->setUserId($user->getId());
        $invoice->setUserEmail($user->getEmailAddress());
        $invoice->setUserName($user->getName());
        
        if(!is_null($representant))
        {
            $invoice->setRepresentantId($representant->getId());
            $invoice->setRepresentantName($representant->getName());
            $invoice->setRepresentantEmail($representant->getEmailAddress());
        }
        
        $invoice->setNote($this->note);
        
        $invoice->save();

        foreach($this->getItems() as $item)
        {
            $item->setInvoice($invoice);
            $item->save();
        }
        
        return $invoice;
    }
    
    /**
     * 
     */
    public function clear()
    {
        $this->items = array();
    }
    
    /**
     *
     * @param Product $product
     * @param array $values 
     */
    public function addProduct($product_id, $amount = 1, $gratis = false)
    {
        if($amount <= 0)
        {
            return false;
        }
        
        if(!$item = $this->getItemByProductIdAndGratis($product_id, $gratis))
        {
            $item = new InvoiceItem();
            $item->setProductById($product_id);
            $item->setAmount($amount);
            $item->setIsGratis($gratis);
            $this->items[$product_id.'-'.(int)$gratis] = $item;
        }
        else
        {
            $item->setAmount($item->getAmount() + $amount);
        }
    }
    
    public function getItemByProductIdAndGratis($product_id, $gratis)
    {
        return isset($this->items[$product_id.'-'.(int)$gratis]) ? $this->items[$product_id.'-'.(int)$gratis] : false;
    }
   
    /**
     *
     * @return array
     */
    public function getItems()
    {
        return $this->items;
    }
    
    /**
     *
     * @return array
     */
    public function hasItems()
    {
        return count($this->items) > 0;
    }
    
    /**
     *
     * @return integer
     */
    public function getProductsCount()
    {
        $result = 0;
        foreach($this->items as $item)
        {
            $result += $item->getCount();
        }
        return $result;
    }
    
    /**
     *
     * @return float 
     */
    public function getProductsPrice()
    {
        $result = 0;
        foreach($this->items as $item)
        {
            $result += $item->getPriceAll();
        }
        return $result;
    }
    
    public function removeItemByProductIdAndGratis($product_id, $gratis)
    {
        if(isset($this->items[$product_id.'-'.(int)$gratis]))
        {
            unset($this->items[$product_id.'-'.(int)$gratis]);
        }
    }
    
    public function setAmountByIndex($index, $amount = 1)
    {   
        if($amount == 0)
        {
            unset($this->items[$index]);
        }
        
        if(isset($this->items[$index]))
        {
            $this->items[$index]->setAmount($amount);
        }
    }
    
    public function hasProblem()
    {
        if(($this->getCatProductsPrice() / 100 * 20) < $this->getCatTestersGratisPrice())
        {
            return true;
        }
        
        return false;
    }

    public function getCatProductsPrice() {
        $price = 0;
        foreach($this->items as $item)
        {
            $product = $item->getProduct();
            if($product->getCategoryId() == Category::PRODUCT)
            {
                $price += $product->getPrice() * $item->getAmount(); 
            }
        }
        return $price;
    }
    
    public function getCatTestersGratisPrice() {
        $price = 0;
        foreach($this->items as $item)
        {
            $product = $item->getProduct();
            if($product->getCategoryId() == Category::TESTER  && $item->getIsGratis())
            {
                $price += $product->getPrice() * $item->getAmount(); 
            }
        }
        return $price;
    }

}