<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Cart extends CI_Controller 
{

	function __construct() 
	{
		parent::__construct();
		$this->load->model('cart_model','cart');
	}
	
	public function index()
	{
		$res['token'] 		= '';
		$res['items'] 		= array();
		$res['note'] 		= '';
		$res['free_shipping'] 	= false;
		$res['total_price'] 	= 0;
		$res['total_weight'] 	= 0;
		$res['item_count'] 		= 0;
		$res['requires_shipping'] = false;
		$res['sub_total_price'] = 0;
		$res['total_line_item_price'] = 0;
		$res['discount'] 		= 0;
		$res['shipping_fee'] 	= 0;
		$res['attributes'] 		= array();
		
		$res['referring_site'] = "https://za.zalo.me/v3/verifyv2/pc?token=OMxnnTHyLmfW1_F9sHPVRMK0-RZQ4K9mPnlckJW\u0026continue=https//huynhgiatradng.com";
		$res['reference'] 		= '';
		$res['landing_site'] 	= '';
		$res['landing_site_ref'] = '';
		
		echo json_encode($res);
	}
	
	function add()
	{
		$str = $this->_get_form();
		echo json_encode($str);
	}
	
	function _get_form()
	{
		$ses_cart = get_ses_cart() ;
		
		$proid 		= (int) $this->input->post('proid');
		$quantity 	= (int) $this->input->post('quantity');
		
		if(empty($proid)) return ;
		$rs = $this->cart->get_product_detail($proid);
		
		$item = map_product($rs);
		$item->shipping_status 	= '';
		
		$products = !empty($ses_cart['items']) ? $ses_cart['items'] : array();
		if(!empty($products)):
			for($i=0;$i<count($products);$i++):
				if($products[$i]->id == $item->id):
					$products[$i]->quantity = $products[$i]->quantity + $quantity;
					$ses_cart['total_price'] = $ses_cart['total_price'] + ($item->price * $quantity);
					$ses_cart['item_count'] = $ses_cart['item_count'] + $quantity;
					$ses_cart['total_weight'] = $ses_cart['total_weight'] + ($item->weight * $quantity);
				else:
					$item->quantity = $quantity;
					$ses_cart['total_price'] = $ses_cart['total_price'] + ($item->price * $quantity);
					$ses_cart['item_count'] = $ses_cart['item_count'] + $quantity;
					$ses_cart['total_weight'] = $ses_cart['total_weight'] + ($item->weight * $quantity);
					array_push($products,$item);
				endif;
				break;
			endfor;
		else:
			$item->quantity = $quantity;
			$ses_cart['total_price'] = $ses_cart['total_price'] + ($item->price * $quantity);
			$ses_cart['item_count'] = $ses_cart['item_count'] + $quantity;
			$ses_cart['total_weight'] = $ses_cart['total_weight'] + ($item->weight * $quantity);
			array_push($products,$item);
		endif;
		
		$ses_cart['items'] 			= $products;
		$ses_cart['subtotal_price']	= 0;
		$ses_cart['shipping_fee']	= $ses_cart['shipping_fee'];
		$ses_cart['free_shipping']	= false;
		$ses_cart['requires_shipping'] = false;
		$ses_cart['attributes']		= array();
		$ses_cart['token']			= "";
		$ses_cart['note']			= "";
		$ses_cart['discount']		= 0;
		
		$_SESSION['cart'] = $ses_cart;
		
		//return a product current
		$pro = $this->map_product($rs);
		return $pro;
	}
	
	
	function map_product($rs)
	{
		$obj = new stdClass();
		$obj->id = $rs->proid;
		$obj->product_id = $rs->proid;
		$obj->title = $rs->pro_name;
		$obj->url = site."san-pham/".alias($rs->pro_name).'-'.$rs->proid.'.html';
		$obj->image = urlimg."products/800/".$rs->proimg;
		$obj->price = $rs->price;
		
		$obj->variant_id = $rs->proid;
		$obj->name = $rs->pro_name;
		return $obj;
	}
	
	/**
	* Ver : 1.0
	* Date : 01-01-2020
	* Desc : Lấy thông tin giỏ hàng hiện tại từ session hoặc data hoặc cache file
	* Params : 
	*/
	function get()
	{
		$ses_cart = get_ses_cart();
		echo json_encode($ses_cart);
	}
	
	/**
	* Ver : 1.0
	* Date : 01-01-2020
	* Desc : Xóa sản phẩm trong giỏ hàng
	* Params : 
	*/
	function remove($proid=0)
	{
		$proid = $this->input->post('proid');
		$quantity = $this->input->post('quantity');
		
		$new_cart = array();
		$ses_cart = get_ses_cart();
		$ses_cart_items = $ses_cart['items'];
		foreach($ses_cart_items as $cart):
			if($cart->id == $proid)
			{
				$ses_cart['total_price'] = $ses_cart['total_price'] - ($cart->price * $cart->quantity);
				$ses_cart['item_count'] = $ses_cart['item_count'] - $cart->quantity;
				$ses_cart['total_weight'] = $ses_cart['total_weight'] - ($cart->weight * $cart->weight);
				continue;
			}
			array_push($new_cart,$cart);
		endforeach ;
		
		$ses_cart['items'] = $new_cart;
		$_SESSION['cart'] = $ses_cart;
		
		echo json_encode($ses_cart);
	}

	/*function _get_form()
	{
		$str = '{
		  "token": "a29bea908e686022f93609357b845edc",
		  "items": [
			{
			  "id": 2,
			  "shipping_status": null,
			  "wait_to_ship_quantity": 0,
			  "grams": 0,
			  "price": 15990000.0000,
			  "line_price": 15990000.0000,
			  "price_old": 0,
			  "line_price_orginal": 0,
			  "line_price_original": 0,
			  "product_id": 13870660,
			  "quantity": 1,
			  "requires_shipping": true,
			  "sku": null,
			  "title": "Samsung Galaxy S10e",
			  "variant_id": 23363788,
			  "variant_title": "\u0110en",
			  "vendor": "Samsung",
			  "name": "Samsung Galaxy S10e - \u0110en",
			  "gift_card": false,
			  "total_discount": 0,
			  "shipping_service": null,
			  "product_exist": true,
			  "image": "'.skin.'temp/636863622278818137-ss-galaxy-s10e-den-1.png",
			  "url": "/samsung-galaxy-s10e",
			  "properties": {
				"Khuy\u1EBFn m\u00E3i": "Phi\u1EBFu mua h\u00E0ng Samsung 4 tri\u1EC7u. \r\n Tr\u1EA3 g\u00F3p l\u00E3i su\u1EA5t 0% qua c\u00F4ng ty t\u00E0i ch\u00EDnh v\u00E0 th\u1EBB t\u00EDn d\u1EE5ng. \r\n B\u1EA3o hi\u1EC3m r\u01A1i v\u1EE1 1 n\u0103m. \r\n \u01AFu \u0111\u00E3i ph\u00F2ng ch\u1EDD h\u1EA1ng th\u01B0\u01A1ng gia."
			  },
			  "promotion_ref": null,
			  "promotion_by": [
				
			  ]
			}
		  ],
		  "note": "",
		  "free_shipping": false,
		  "total_price": 15990000.0000,
		  "total_weight": 0,
		  "item_count": 1,
		  "requires_shipping": false,
		  "sub_total_price": 0,
		  "total_line_item_price": 0,
		  "discount": 0,
		  "shipping_fee": 0,
		  "attributes": [
			
		  ],
		  "referring_site": "",
		  "reference": null,
		  "landing_site": "/",
		  "landing_site_ref": null
		}';
		
		return $str;
	}*/
	
	//cap nhat so luong sản phẩm sẽ mua
	function change()
	{
		$proid 		= $this->input->post('proid');
		$quantity 	= $this->input->post('quantity');
		
		$ses_cart = get_ses_cart();
		$products = $ses_cart['items'];
		if(!empty($products)):
			for($i=0;$i<count($products);$i++):
				if($products[$i]->id == $proid):
					if($products[$i]->quantity > $quantity){
						$a = $products[$i]->quantity - $quantity;
						$products[$i]->quantity = $quantity;
						$ses_cart['item_count'] = $ses_cart['item_count'] - $a;
						$ses_cart['total_price'] = $ses_cart['total_price'] - ($products[$i]->price * $a);
						$ses_cart['total_weight'] = $ses_cart['total_weight'] - ($products[$i]->weight * $a);
					}
					else
					{
						$a = $quantity - $products[$i]->quantity;
						$products[$i]->quantity = $quantity;
						$ses_cart['item_count'] = $ses_cart['item_count'] + $a;
						$ses_cart['total_price'] = $ses_cart['total_price'] + ($products[$i]->price * $a);
						$ses_cart['total_weight'] = $ses_cart['total_weight'] + ($products[$i]->weight * $a);
					}
					break;
				endif;
				
			endfor;
		endif;
		
		$_SESSION['cart'] = $ses_cart;
		echo json_encode($ses_cart);
	}
}

?>