OpenCart 🇺🇦

$this->language->load('checkout/manual');

$json = array();

$this->load->library('user');

$this->user = new User($this->registry);

if ($this->user->isLogged() && $this->user->hasPermission('modify', 'sale/order')) {	
	// Reset everything
	$this->cart->clear();
	$this->customer->logout();

	unset($this->session->data['shipping_method']);
	unset($this->session->data['shipping_methods']);			
	unset($this->session->data['payment_method']);
	unset($this->session->data['payment_methods']);
	unset($this->session->data['coupon']);
	unset($this->session->data['reward']);
	unset($this->session->data['voucher']);
	unset($this->session->data['vouchers']);

	// Settings
	$this->load->model('setting/setting');

	$settings = $this->model_setting_setting->getSetting('config', $this->request->post['store_id']);

	foreach ($settings as $key => $value) {
		$this->config->set($key, $value);
	}

	// Customer
	if ($this->request->post['customer_id']) {
		$this->load->model('account/customer');

		$customer_info = $this->model_account_customer->getCustomer($this->request->post['customer_id']);

		if ($customer_info) {
			$this->customer->login($customer_info['email'], '', true);
			$this->cart->clear();
		} else {
			$json['error']['customer'] = $this->language->get('error_customer');
		}
	} else {
		// Customer Group
		$this->config->set('config_customer_group_id', $this->request->post['customer_group_id']);
	}

	// Product
	$this->load->model('catalog/product');

	if (isset($this->request->post['order_product'])) {
		foreach ($this->request->post['order_product'] as $order_product) {
			$product_info = $this->model_catalog_product->getProduct($order_product['product_id']);

			if ($product_info) {	
				$option_data = array();

				if (isset($order_product['order_option'])) {
					foreach ($order_product['order_option'] as $option) {
						if ($option['type'] == 'select' || $option['type'] == 'radio' || $option['type'] == 'image') { 
							$option_data[$option['product_option_id']] = $option['product_option_value_id'];
						} elseif ($option['type'] == 'checkbox') {
							$option_data[$option['product_option_id']][] = $option['product_option_value_id'];
						} elseif ($option['type'] == 'text' || $option['type'] == 'textarea' || $option['type'] == 'file' || $option['type'] == 'date' || $option['type'] == 'datetime' || $option['type'] == 'time') {
							$option_data[$option['product_option_id']] = $option['value'];						
						}
					}
				}

				$this->cart->add($order_product['product_id'], $order_product['quantity'], $option_data);
			}
		}
	}

	if (isset($this->request->post['product_id'])) {
		$product_info = $this->model_catalog_product->getProduct($this->request->post['product_id']);

		if ($product_info) {
			if (isset($this->request->post['quantity'])) {
				$quantity = $this->request->post['quantity'];
			} else {
				$quantity = 1;
			}

			if (isset($this->request->post['option'])) {
				$option = array_filter($this->request->post['option']);
			} else {
				$option = array();	
			}

			$product_options = $this->model_catalog_product->getProductOptions($this->request->post['product_id']);

			foreach ($product_options as $product_option) {
				if ($product_option['required'] && empty($option[$product_option['product_option_id']])) {
					$json['error']['product']['option'][$product_option['product_option_id']] = sprintf($this->language->get('error_required'), $product_option['name']);
				}
			}

			if (!isset($json['error']['product']['option'])) {
				$this->cart->add($this->request->post['product_id'], $quantity, $option);
			}
		}
	}

	// Stock
	if (!$this->cart->hasStock() && (!$this->config->get('config_stock_checkout') || $this->config->get('config_stock_warning'))) {
		$json['error']['product']['stock'] = $this->language->get('error_stock');
	}		

	// Tax
	if ($this->cart->hasShipping()) {
		$this->tax->setShippingAddress($this->request->post['shipping_country_id'], $this->request->post['shipping_zone_id']);
	} else {
		$this->tax->setShippingAddress($this->config->get('config_country_id'), $this->config->get('config_zone_id'));
	}

	$this->tax->setPaymentAddress($this->request->post['payment_country_id'], $this->request->post['payment_zone_id']);				
	$this->tax->setStoreAddress($this->config->get('config_country_id'), $this->config->get('config_zone_id'));	

	// Products
	$json['order_product'] = array();

	$products = $this->cart->getProducts();

	foreach ($products as $product) {
		$product_total = 0;

		foreach ($products as $product_2) {
			if ($product_2['product_id'] == $product['product_id']) {
				$product_total += $product_2['quantity'];
			}
		}	

		if ($product['minimum'] > $product_total) {
			$json['error']['product']['minimum'][] = sprintf($this->language->get('error_minimum'), $product['name'], $product['minimum']);
		}	

		$option_data = array();

		foreach ($product['option'] as $option) {
			$option_data[] = array(
				'product_option_id'       => $option['product_option_id'],
				'product_option_value_id' => $option['product_option_value_id'],
				'name'                    => $option['name'],
				'value'                   => $option['option_value'],
				'type'                    => $option['type']
			);
		}

		$download_data = array();

		foreach ($product['download'] as $download) {
			$download_data[] = array(
				'name'      => $download['name'],
				'filename'  => $download['filename'],
				'mask'      => $download['mask'],
				'remaining' => $download['remaining']
			);
		}

		$json['order_product'][] = array(
			'product_id' => $product['product_id'],
			'name'       => $product['name'],
			'model'      => $product['model'], 
			'option'     => $option_data,
			'download'   => $download_data,
			'quantity'   => $product['quantity'],
			'stock'      => $product['stock'],
			'price'      => $product['price'],	
			'total'      => $product['total'],	
			'tax'        => $this->tax->getTax($product['price'], $product['tax_class_id']),
			'reward'     => $product['reward']				
		);
	}

	// Voucher
	$this->session->data['vouchers'] = array();

	if (isset($this->request->post['order_voucher'])) {
		foreach ($this->request->post['order_voucher'] as $voucher) {
			$this->session->data['vouchers'][] = array(
				'voucher_id'       => $voucher['voucher_id'],
				'description'      => $voucher['description'],
				'code'             => substr(md5(mt_rand()), 0, 10),
				'from_name'        => $voucher['from_name'],
				'from_email'       => $voucher['from_email'],
				'to_name'          => $voucher['to_name'],
				'to_email'         => $voucher['to_email'],
				'voucher_theme_id' => $voucher['voucher_theme_id'], 
				'message'          => $voucher['message'],
				'amount'           => $voucher['amount']    
			);
		}
	}

	// Add a new voucher if set
	if (isset($this->request->post['from_name']) && isset($this->request->post['from_email']) && isset($this->request->post['to_name']) && isset($this->request->post['to_email']) && isset($this->request->post['amount'])) {
		if ((utf8_strlen($this->request->post['from_name']) < 1) || (utf8_strlen($this->request->post['from_name']) > 64)) {
			$json['error']['vouchers']['from_name'] = $this->language->get('error_from_name');
		}  

		if ((utf8_strlen($this->request->post['from_email']) > 96) || !preg_match('/^[^\@]+@.*\.[a-z]{2,6}$/i', $this->request->post['from_email'])) {
			$json['error']['vouchers']['from_email'] = $this->language->get('error_email');
		}

		if ((utf8_strlen($this->request->post['to_name']) < 1) || (utf8_strlen($this->request->post['to_name']) > 64)) {
			$json['error']['vouchers']['to_name'] = $this->language->get('error_to_name');
		}       

		if ((utf8_strlen($this->request->post['to_email']) > 96) || !preg_match('/^[^\@]+@.*\.[a-z]{2,6}$/i', $this->request->post['to_email'])) {
			$json['error']['vouchers']['to_email'] = $this->language->get('error_email');
		}

		if (($this->request->post['amount'] < 1) || ($this->request->post['amount'] > 1000)) {
			$json['error']['vouchers']['amount'] = sprintf($this->language->get('error_amount'), $this->currency->format(1, false, 1), $this->currency->format(1000, false, 1) . ' ' . $this->config->get('config_currency'));
		}

		if (!isset($json['error']['vouchers'])) { 
			$voucher_data = array(
				'order_id'         => 0,
				'code'             => substr(md5(mt_rand()), 0, 10),
				'from_name'        => $this->request->post['from_name'],
				'from_email'       => $this->request->post['from_email'],
				'to_name'          => $this->request->post['to_name'],
				'to_email'         => $this->request->post['to_email'],
				'voucher_theme_id' => $this->request->post['voucher_theme_id'], 
				'message'          => $this->request->post['message'],
				'amount'           => $this->request->post['amount'],
				'status'           => true             
			); 

			$this->load->model('checkout/voucher');

			$voucher_id = $this->model_checkout_voucher->addVoucher(0, $voucher_data);  

			$this->session->data['vouchers'][] = array(
				'voucher_id'       => $voucher_id,
				'description'      => sprintf($this->language->get('text_for'), $this->currency->format($this->request->post['amount'], $this->config->get('config_currency')), $this->request->post['to_name']),
				'code'             => substr(md5(mt_rand()), 0, 10),
				'from_name'        => $this->request->post['from_name'],
				'from_email'       => $this->request->post['from_email'],
				'to_name'          => $this->request->post['to_name'],
				'to_email'         => $this->request->post['to_email'],
				'voucher_theme_id' => $this->request->post['voucher_theme_id'], 
				'message'          => $this->request->post['message'],
				'amount'           => $this->request->post['amount']            
			); 
		}
	}

	$json['order_voucher'] = array();

	foreach ($this->session->data['vouchers'] as $voucher) {
		$json['order_voucher'][] = array(
			'voucher_id'       => $voucher['voucher_id'],
			'description'      => $voucher['description'],
			'code'             => $voucher['code'],
			'from_name'        => $voucher['from_name'],
			'from_email'       => $voucher['from_email'],
			'to_name'          => $voucher['to_name'],
			'to_email'         => $voucher['to_email'],
			'voucher_theme_id' => $voucher['voucher_theme_id'], 
			'message'          => $voucher['message'],
			'amount'           => $voucher['amount']    
		);
	}

	$this->load->model('setting/extension');

	$this->load->model('localisation/country');

	$this->load->model('localisation/zone');

	// Shipping
	$json['shipping_method'] = array();

	if ($this->cart->hasShipping()) {		
		$this->load->model('localisation/country');

		$country_info = $this->model_localisation_country->getCountry($this->request->post['shipping_country_id']);

		if ($country_info && $country_info['postcode_required'] && (utf8_strlen($this->request->post['shipping_postcode']) < 2) || (utf8_strlen($this->request->post['shipping_postcode']) > 10)) {
			$json['error']['shipping']['postcode'] = $this->language->get('error_postcode');
		}

		if ($this->request->post['shipping_country_id'] == '') {
			$json['error']['shipping']['country'] = $this->language->get('error_country');
		}

		if (!isset($this->request->post['shipping_zone_id']) || $this->request->post['shipping_zone_id'] == '') {
			$json['error']['shipping']['zone'] = $this->language->get('error_zone');
		}

		$this->load->model('localisation/country');

		$country_info = $this->model_localisation_country->getCountry($this->request->post['shipping_country_id']);

		if ($country_info && $country_info['postcode_required'] && (utf8_strlen($this->request->post['shipping_postcode']) < 2) || (utf8_strlen($this->request->post['shipping_postcode']) > 10)) {
			$json['error']['shipping']['postcode'] = $this->language->get('error_postcode');
		}

		if (!isset($json['error']['shipping'])) {
			if ($country_info) {
				$country = $country_info['name'];
				$iso_code_2 = $country_info['iso_code_2'];
				$iso_code_3 = $country_info['iso_code_3'];
				$address_format = $country_info['address_format'];
			} else {
				$country = '';
				$iso_code_2 = '';
				$iso_code_3 = '';	
				$address_format = '';
			}

			$zone_info = $this->model_localisation_zone->getZone($this->request->post['shipping_zone_id']);

			if ($zone_info) {
				$zone = $zone_info['name'];
				$zone_code = $zone_info['code'];
			} else {
				$zone = '';
				$zone_code = '';
			}					

			$address_data = array(
				'firstname'      => $this->request->post['shipping_firstname'],
				'lastname'       => $this->request->post['shipping_lastname'],
				'company'        => $this->request->post['shipping_company'],
				'address_1'      => $this->request->post['shipping_address_1'],
				'address_2'      => $this->request->post['shipping_address_2'],
				'postcode'       => $this->request->post['shipping_postcode'],
				'city'           => $this->request->post['shipping_city'],
				'zone_id'        => $this->request->post['shipping_zone_id'],
				'zone'           => $zone,
				'zone_code'      => $zone_code,
				'country_id'     => $this->request->post['shipping_country_id'],
				'country'        => $country,	
				'iso_code_2'     => $iso_code_2,
				'iso_code_3'     => $iso_code_3,
				'address_format' => $address_format
			);

			$results = $this->model_setting_extension->getExtensions('shipping');

			foreach ($results as $result) {
				if ($this->config->get($result['code'] . '_status')) {
					$this->load->model('shipping/' . $result['code']);

					$quote = $this->{'model_shipping_' . $result['code']}->getQuote($address_data); 

					if ($quote) {
						$json['shipping_method'][$result['code']] = array( 
							'title'      => $quote['title'],
							'quote'      => $quote['quote'], 
							'sort_order' => $quote['sort_order'],
							'error'      => $quote['error']
						);
					}
				}
			}

			$sort_order = array();

			foreach ($json['shipping_method'] as $key => $value) {
				$sort_order[$key] = $value['sort_order'];
			}

			array_multisort($sort_order, SORT_ASC, $json['shipping_method']);

			if (!$json['shipping_method']) {
				$json['error']['shipping_method'] = $this->language->get('error_no_shipping');
			} elseif ($this->request->post['shipping_code']) {
				$shipping = explode('.', $this->request->post['shipping_code']);

				if (!isset($shipping[0]) || !isset($shipping[1]) || !isset($json['shipping_method'][$shipping[0]]['quote'][$shipping[1]])) {		
					$json['error']['shipping_method'] = $this->language->get('error_shipping');
				} else {
					$this->session->data['shipping_method'] = $json['shipping_method'][$shipping[0]]['quote'][$shipping[1]];
				}				
			}					
		}
	}

	// Coupon
	if (!empty($this->request->post['coupon'])) {
		$this->load->model('checkout/coupon');

		$coupon_info = $this->model_checkout_coupon->getCoupon($this->request->post['coupon']);			

		if ($coupon_info) {					
			$this->session->data['coupon'] = $this->request->post['coupon'];
		} else {
			$json['error']['coupon'] = $this->language->get('error_coupon');
		}
	}

	// Voucher
	if (!empty($this->request->post['voucher'])) {
		$this->load->model('checkout/voucher');

		$voucher_info = $this->model_checkout_voucher->getVoucher($this->request->post['voucher']);			

		if ($voucher_info) {					
			$this->session->data['voucher'] = $this->request->post['voucher'];
		} else {
			$json['error']['voucher'] = $this->language->get('error_voucher');
		}
	}

	// Reward Points
	if (!empty($this->request->post['reward'])) {
		$points = $this->customer->getRewardPoints();

		if ($this->request->post['reward'] > $points) {
			$json['error']['reward'] = sprintf($this->language->get('error_points'), $this->request->post['reward']);
		}

		if (!isset($json['error']['reward'])) {
			$points_total = 0;

			foreach ($this->cart->getProducts() as $product) {
				if ($product['points']) {
					$points_total += $product['points'];
				}
			}				

			if ($this->request->post['reward'] > $points_total) {
				$json['error']['reward'] = sprintf($this->language->get('error_maximum'), $points_total);
			}

			if (!isset($json['error']['reward'])) {		
				$this->session->data['reward'] = $this->request->post['reward'];
			}
		}
	}

	// Totals
	$json['order_total'] = array();					
	$total = 0;
	$taxes = $this->cart->getTaxes();

	$sort_order = array(); 

	$results = $this->model_setting_extension->getExtensions('total');

	foreach ($results as $key => $value) {
		$sort_order[$key] = $this->config->get($value['code'] . '_sort_order');
	}

	array_multisort($sort_order, SORT_ASC, $results);

	foreach ($results as $result) {
		if ($this->config->get($result['code'] . '_status')) {
			$this->load->model('total/' . $result['code']);

			$this->{'model_total_' . $result['code']}->getTotal($json['order_total'], $total, $taxes);
		}

		$sort_order = array(); 

		foreach ($json['order_total'] as $key => $value) {
			$sort_order[$key] = $value['sort_order'];
		}

		array_multisort($sort_order, SORT_ASC, $json['order_total']);				
	}

	// Payment
	if ($this->request->post['payment_country_id'] == '') {
		$json['error']['payment']['country'] = $this->language->get('error_country');
	}

	if (!isset($this->request->post['payment_zone_id']) || $this->request->post['payment_zone_id'] == '') {
		$json['error']['payment']['zone'] = $this->language->get('error_zone');
	}		

	if (!isset($json['error']['payment'])) {
		$json['payment_methods'] = array();

		$country_info = $this->model_localisation_country->getCountry($this->request->post['payment_country_id']);

		if ($country_info) {
			$country = $country_info['name'];
			$iso_code_2 = $country_info['iso_code_2'];
			$iso_code_3 = $country_info['iso_code_3'];
			$address_format = $country_info['address_format'];
		} else {
			$country = '';
			$iso_code_2 = '';
			$iso_code_3 = '';	
			$address_format = '';
		}

		$zone_info = $this->model_localisation_zone->getZone($this->request->post['payment_zone_id']);

		if ($zone_info) {
			$zone = $zone_info['name'];
			$zone_code = $zone_info['code'];
		} else {
			$zone = '';
			$zone_code = '';
		}					

		$address_data = array(
			'firstname'      => $this->request->post['payment_firstname'],
			'lastname'       => $this->request->post['payment_lastname'],
			'company'        => $this->request->post['payment_company'],
			'address_1'      => $this->request->post['payment_address_1'],
			'address_2'      => $this->request->post['payment_address_2'],
			'postcode'       => $this->request->post['payment_postcode'],
			'city'           => $this->request->post['payment_city'],
			'zone_id'        => $this->request->post['payment_zone_id'],
			'zone'           => $zone,
			'zone_code'      => $zone_code,
			'country_id'     => $this->request->post['payment_country_id'],
			'country'        => $country,	
			'iso_code_2'     => $iso_code_2,
			'iso_code_3'     => $iso_code_3,
			'address_format' => $address_format
		);

		$json['payment_method'] = array();

		$results = $this->model_setting_extension->getExtensions('payment');

		foreach ($results as $result) {
			if ($this->config->get($result['code'] . '_status')) {
				$this->load->model('payment/' . $result['code']);

				$method = $this->{'model_payment_' . $result['code']}->getMethod($address_data, $total); 

				if ($method) {
					$json['payment_method'][$result['code']] = $method;
				}
			}
		}

		$sort_order = array(); 

		foreach ($json['payment_method'] as $key => $value) {
			$sort_order[$key] = $value['sort_order'];
		}

		array_multisort($sort_order, SORT_ASC, $json['payment_method']);	

		if (!$json['payment_method']) {
			$json['error']['payment_method'] = $this->language->get('error_no_payment');
		} elseif ($this->request->post['payment_code']) {			
			if (!isset($json['payment_method'][$this->request->post['payment_code']])) {
				$json['error']['payment_method'] = $this->language->get('error_payment');
			}
		}
	}

	if (!isset($json['error'])) { 
		$json['success'] = $this->language->get('text_success');
	} else {
		$json['error']['warning'] = $this->language->get('error_warning');
	}

	// Reset everything
	$this->cart->clear();
	$this->customer->logout();

	unset($this->session->data['shipping_method']);
	unset($this->session->data['shipping_methods']);
	unset($this->session->data['payment_method']);
	unset($this->session->data['payment_methods']);
	unset($this->session->data['coupon']);
	unset($this->session->data['reward']);
	unset($this->session->data['voucher']);
	unset($this->session->data['vouchers']);
} else {
	$json['error']['warning'] = $this->language->get('error_permission');
}

$this->response->setOutput(json_encode($json));