<?php
namespace Opencart\Catalog\Controller\Checkout;
class Cart extends \Opencart\System\Engine\Controller {
	public function index(): void {
		$this->load->language('checkout/cart');

		$this->document->setTitle($this->language->get('heading_title'));

		$data['breadcrumbs'] = [];

		$data['breadcrumbs'][] = [
			'text' => $this->language->get('text_home'),
			'href' => $this->url->link('common/home', 'language=' . $this->config->get('config_language'))
		];

		$data['breadcrumbs'][] = [
			'text' => $this->language->get('heading_title'),
			'href' => $this->url->link('checkout/cart', 'language=' . $this->config->get('config_language'))
		];

		if ($this->cart->hasProducts() || !empty($this->session->data['vouchers'])) {
			if (!$this->cart->hasStock() && (!$this->config->get('config_stock_checkout') || $this->config->get('config_stock_warning'))) {
				$data['error_warning'] = $this->language->get('error_stock');
			} elseif (isset($this->session->data['error'])) {
				$data['error_warning'] = $this->session->data['error'];

				unset($this->session->data['error']);
			} else {
				$data['error_warning'] = '';
			}

			if ($this->config->get('config_customer_price') && !$this->customer->isLogged()) {
				$data['attention'] = sprintf($this->language->get('text_login'), $this->url->link('account/login', 'language=' . $this->config->get('config_language')), $this->url->link('account/register', 'language=' . $this->config->get('config_language')));
			} else {
				$data['attention'] = '';
			}

			if (isset($this->session->data['success'])) {
				$data['success'] = $this->session->data['success'];

				unset($this->session->data['success']);
			} else {
				$data['success'] = '';
			}

			$data['action'] = $this->url->link('checkout/cart|edit', 'language=' . $this->config->get('config_language'));

			if ($this->config->get('config_cart_weight')) {
				$data['weight'] = $this->weight->format($this->cart->getWeight(), $this->config->get('config_weight_class_id'), $this->language->get('decimal_point'), $this->language->get('thousand_point'));
			} else {
				$data['weight'] = '';
			}

			$this->load->model('tool/image');
			$this->load->model('tool/upload');

			$frequencies = [
				'day'        => $this->language->get('text_day'),
				'week'       => $this->language->get('text_week'),
				'semi_month' => $this->language->get('text_semi_month'),
				'month'      => $this->language->get('text_month'),
				'year'       => $this->language->get('text_year')
			];

			$data['products'] = [];

			$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) {
					$data['error_warning'] = sprintf($this->language->get('error_minimum'), $product['name'], $product['minimum']);
				}

				if ($product['image']) {
					$image = $this->model_tool_image->resize(html_entity_decode($product['image'], ENT_QUOTES, 'UTF-8'), $this->config->get('config_image_cart_width'), $this->config->get('config_image_cart_height'));
				} else {
					$image = $this->model_tool_image->resize('placeholder.png', $this->config->get('config_image_cart_width'), $this->config->get('config_image_cart_height'));
				}

				$option_data = [];

				foreach ($product['option'] as $option) {
					if ($option['type'] != 'file') {
						$value = $option['value'];
					} else {
						$upload_info = $this->model_tool_upload->getUploadByCode($option['value']);

						if ($upload_info) {
							$value = $upload_info['name'];
						} else {
							$value = '';
						}
					}

					$option_data[] = [
						'name'  => $option['name'],
						'value' => (utf8_strlen($value) > 20 ? utf8_substr($value, 0, 20) . '..' : $value)
					];
				}

				// Display prices
				if ($this->customer->isLogged() || !$this->config->get('config_customer_price')) {
					$unit_price = $this->tax->calculate($product['price'], $product['tax_class_id'], $this->config->get('config_tax'));

					$price = $this->currency->format($unit_price, $this->session->data['currency']);
					$total = $this->currency->format($unit_price * $product['quantity'], $this->session->data['currency']);
				} else {
					$price = false;
					$total = false;
				}

				$recurring = '';

				if ($product['recurring']) {
					if ($product['recurring']['trial']) {
						$recurring = sprintf($this->language->get('text_trial_description'), $this->currency->format($this->tax->calculate($product['recurring']['trial_price'] * $product['quantity'], $product['tax_class_id'], $this->config->get('config_tax')), $this->session->data['currency']), $product['recurring']['trial_cycle'], $frequencies[$product['recurring']['trial_frequency']], $product['recurring']['trial_duration']) . ' ';
					}

					if ($product['recurring']['duration']) {
						$recurring .= sprintf($this->language->get('text_payment_description'), $this->currency->format($this->tax->calculate($product['recurring']['price'] * $product['quantity'], $product['tax_class_id'], $this->config->get('config_tax')), $this->session->data['currency']), $product['recurring']['cycle'], $frequencies[$product['recurring']['frequency']], $product['recurring']['duration']);
					} else {
						$recurring .= sprintf($this->language->get('text_payment_cancel'), $this->currency->format($this->tax->calculate($product['recurring']['price'] * $product['quantity'], $product['tax_class_id'], $this->config->get('config_tax')), $this->session->data['currency']), $product['recurring']['cycle'], $frequencies[$product['recurring']['frequency']], $product['recurring']['duration']);
					}
				}

				$data['products'][] = [
					'cart_id'   => $product['cart_id'],
					'thumb'     => $image,
					'name'      => $product['name'],
					'model'     => $product['model'],
					'option'    => $option_data,
					'recurring' => $recurring,
					'quantity'  => $product['quantity'],
					'stock'     => $product['stock'] ? true : !(!$this->config->get('config_stock_checkout') || $this->config->get('config_stock_warning')),
					'reward'    => ($product['reward'] ? sprintf($this->language->get('text_points'), $product['reward']) : ''),
					'price'     => $price,
					'total'     => $total,
					'href'      => $this->url->link('product/product', 'language=' . $this->config->get('config_language') . '&product_id=' . $product['product_id'])
				];
			}

			// Gift Voucher
			$data['vouchers'] = [];

			if (!empty($this->session->data['vouchers'])) {
				foreach ($this->session->data['vouchers'] as $key => $voucher) {
					$data['vouchers'][] = [
						'key'         => $key,
						'description' => $voucher['description'],
						'amount'      => $this->currency->format($voucher['amount'], $this->session->data['currency']),
						'remove'      => $this->url->link('checkout/cart', 'language=' . $this->config->get('config_language') . '&remove=' . $key)
					];
				}
			}

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

			$totals = [];
			$taxes = $this->cart->getTaxes();
			$total = 0;

			// Display prices
			if ($this->customer->isLogged() || !$this->config->get('config_customer_price')) {
				$sort_order = [];

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

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

				array_multisort($sort_order, SORT_ASC, $results);

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

						// __call can not pass-by-reference so we get PHP to call it as an anonymous function.
						($this->{'model_extension_' . $result['extension'] . '_total_' . $result['code']}->getTotal)($totals, $taxes, $total);
					}
				}

				$sort_order = [];

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

				array_multisort($sort_order, SORT_ASC, $totals);
			}

			$data['totals'] = [];

			foreach ($totals as $total) {
				$data['totals'][] = [
					'title' => $total['title'],
					'text'  => $this->currency->format($total['value'], $this->session->data['currency'])
				];
			}

			$data['continue'] = $this->url->link('common/home', 'language=' . $this->config->get('config_language'));
			$data['checkout'] = $this->url->link('checkout/checkout', 'language=' . $this->config->get('config_language'));

			$data['modules'] = [];

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

					if (!$result instanceof \Exception) {
						$data['modules'][] = $result;
					}
				}
			}

			$data['column_left'] = $this->load->controller('common/column_left');
			$data['column_right'] = $this->load->controller('common/column_right');
			$data['content_top'] = $this->load->controller('common/content_top');
			$data['content_bottom'] = $this->load->controller('common/content_bottom');
			$data['footer'] = $this->load->controller('common/footer');
			$data['header'] = $this->load->controller('common/header');

			$this->response->setOutput($this->load->view('checkout/cart', $data));
		} else {
			$data['text_error'] = $this->language->get('text_no_results');

			$data['continue'] = $this->url->link('common/home', 'language=' . $this->config->get('config_language'));

			unset($this->session->data['success']);

			$data['column_left'] = $this->load->controller('common/column_left');
			$data['column_right'] = $this->load->controller('common/column_right');
			$data['content_top'] = $this->load->controller('common/content_top');
			$data['content_bottom'] = $this->load->controller('common/content_bottom');
			$data['footer'] = $this->load->controller('common/footer');
			$data['header'] = $this->load->controller('common/header');

			$this->response->setOutput($this->load->view('error/not_found', $data));
		}
	}

	public function add(): void {
		$this->load->language('checkout/cart');

		$json = [];

		if (isset($this->request->post['product_id'])) {
			$product_id = (int)$this->request->post['product_id'];
		} else {
			$product_id = 0;
		}

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

		$product_info = $this->model_catalog_product->getProduct($product_id);

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

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

			// If variant get master product
			if ($product_info['master_id']) {
				$product_id = $product_info['master_id'];
			}

			// Merge variant code with options
			foreach ($product_info['variant'] as $key => $value) {
				$option[$key] = $value;
			}

			$product_options = $this->model_catalog_product->getOptions($product_id);

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

			if (isset($this->request->post['recurring_id'])) {
				$recurring_id = $this->request->post['recurring_id'];
			} else {
				$recurring_id = 0;
			}

			$recurrings = $this->model_catalog_product->getProfiles($product_info['product_id']);

			if ($recurrings) {
				$recurring_ids = [];

				foreach ($recurrings as $recurring) {
					$recurring_ids[] = $recurring['recurring_id'];
				}

				if (!in_array($recurring_id, $recurring_ids)) {
					$json['error']['recurring'] = $this->language->get('error_recurring_required');
				}
			}

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

				$json['success'] = sprintf($this->language->get('text_success'), $this->url->link('product/product', 'language=' . $this->config->get('config_language') . '&product_id=' . $this->request->post['product_id']), $product_info['name'], $this->url->link('checkout/cart', 'language=' . $this->config->get('config_language')));

				// Unset all shipping and payment methods
				unset($this->session->data['shipping_method']);
				unset($this->session->data['shipping_methods']);
				unset($this->session->data['payment_method']);
				unset($this->session->data['payment_methods']);
			} else {
				$json['redirect'] = $this->url->link('product/product', 'language=' . $this->config->get('config_language') . '&product_id=' . $this->request->post['product_id'], true);
			}
		}

		$this->response->addHeader('Content-Type: application/json');
		$this->response->setOutput(json_encode($json));
	}

	public function edit(): void {
		$this->load->language('checkout/cart');

		$json = [];

		// Update
		if (!empty($this->request->post['quantity'])) {
			// Handles single item update
			if (!empty($this->request->post['key'])) {
				$key = $this->request->post['key'];
				$quantity = (int)$this->request->post['quantity'];

				$this->cart->update($key, $quantity);

				$json['success'] = $this->language->get('text_remove');
			} else {
				foreach ($this->request->post['quantity'] as $key => $value) {
					$this->cart->update($key, $value);
				}

				$this->session->data['success'] = $this->language->get('text_remove');

				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['reward']);

				$this->response->redirect($this->url->link('checkout/cart', 'language=' . $this->config->get('config_language')));
			}
		}

		$this->response->addHeader('Content-Type: application/json');
		$this->response->setOutput(json_encode($json));
	}

	public function remove(): void {
		$this->load->language('checkout/cart');

		$json = [];

		// Remove
		if (isset($this->request->post['key'])) {
			$this->cart->remove($this->request->post['key']);

			unset($this->session->data['vouchers'][$this->request->post['key']]);

			$json['success'] = $this->language->get('text_remove');

			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['reward']);
		}

		$this->response->addHeader('Content-Type: application/json');
		$this->response->setOutput(json_encode($json));
	}
}