<?php
require 'BusinessDaysCalculator.php';

if (!class_exists('SaleDelay')) {

	class SaleDelay {

		public static function associateDelay($products)
		{
			global $cookie;

			// products cart group by delay
			$products_final = array();
			$categories_cached = array();
			$sales_cached = array();

			foreach ($products as $key => $product) {
				if (!isset($product['id_category_default'])) {
					$product['id_category_default'] = Db::getInstance()->getValue('
						SELECT `id_category_default`
						FROM `ps_product`
						WHERE `id_product` = '.(int)$product['product_id'] .'
					');
				}

				if (!in_array($product['id_category_default'], $categories_cached)) {
					$sale = Sale::getSaleFromCategory((int) $product['id_category_default']);
					$sales_cached[(int) $product['id_category_default']] = $sale;
				} else {
					$sale = $sales_cached[(int) $product['id_category_default']];
				}
				$delay = !empty($sale->delivery_delay) ? $sale->delivery_delay : 1;

				if(!isset($products_final[(int)$delay])) {
					$products_final[(int)$delay] = array();
					$array_delay = self::getDelay($delay, $cookie->id_lang);

					$products_final[(int)$delay]['title'] = $array_delay['short_name'];
					$products_final[(int)$delay]['products'] = array();
				}

				$products_final[(int)$delay]['products'][] = $product;
			}

			return $products_final;
		}

		public static function getDeliveryDate(array $delays, $id_lang = null, $date_calcul = null, $include_we =false)
		{
			global $cookie;
			if (!$date_calcul) {
				$date_calcul = new DateTime();
			}
			if (!$id_lang) {
				$id_lang = $cookie->id_lang;
			}
			if (empty($delays)) {
				return false;
			}

			$delivery_date = array();
			foreach ($delays as $key => $delay) {
				if (!in_array($delay, array_keys($delivery_date))) {
					$delivery_date[$delay] = self::getDayDelay($delay, $cookie->id_lang);
					$delivery_date[$delay]['date_start'] = self::getDateWithDelay((int)$delivery_date[$delay]['value'], $date_calcul, $include_we);

					// exception noel
					if ($delay == 5) {
						$delivery_date[$delay]['date_end'] = self::getDateWithDelay((int) $delivery_date[$delay]['value'], $date_calcul, $include_we);
					} else {
						$delivery_date[$delay]['date_end'] = self::getDateWithDelay((int) $delivery_date[$delay]['value_max'], $date_calcul, $include_we);
					}
				}
			}
			return $delivery_date;
		}

		public static function getDateWithDelay($nb_day, $date, $include_we = false)
		{

			if ($include_we) {
				$calculator = new BusinessDaysCalculator(
				    new DateTime($date->format('Y-m-d H:i:s')),
				    array(),
				    [BusinessDaysCalculator::SUNDAY]
				);
				$calculator->addDaysWithCheckLastDay($nb_day);
			} else {
				$calculator = new BusinessDaysCalculator(
				    new DateTime($date->format('Y-m-d H:i:s')),
				    array(),
				    [BusinessDaysCalculator::SATURDAY, BusinessDaysCalculator::SUNDAY]
				);
				$calculator->addBusinessDays($nb_day);
			}

			return $calculator->getDate();
		}

		public static function getDayDelay($id_delay, $id_lang)
		{
			return Db::getInstance()->getRow('
				SELECT `value`, `value_max`, `name`
				FROM `ps_privatesale_delay_lang`
				WHERE `id_delay` = '.(int) $id_delay.'
				AND `id_lang` = '.(int) $id_lang.'
			');
		}

		public static function getDelay($id_delay, $id_lang)
		{
			return Db::getInstance()->getRow('
				SELECT d.`id_delay`, dl.`name`, dl.`short_name`, dl.`value`
				FROM `'._DB_PREFIX_.'privatesale_delay_lang` d
				LEFT JOIN  `'._DB_PREFIX_.'privatesale_delay_lang` dl ON (d.`id_delay` = dl.`id_delay`)
				WHERE dl.`id_lang` = '.(int) $id_lang.'
				AND d.`id_delay` = '.(int) $id_delay.'
			');
		}

		/**
		 * @todo  - remove this function to use short name
		 */
		public static function getDelaySmallName($id_delay, $id_lang) {
			if($id_lang == 2) {
				switch ($id_delay) {
					case '1':
						return 'Classique';
						break;
					case '2':
						return '48h';
						break;
					case '3':
						return '7j';
						break;
					case '4':
						return '10j';
						break;
					case '5':
						return 'Noël';
						break;
					case '6':
						return 'Star';
						break;
					case '7':
						return '72h';
						break;
					case '8':
						return '48h Noël';
						break;
					default:
						return 'Inconnu';
						break;
				}
			} elseif($id_lang == 3){
				switch ($id_delay) {
					case '1':
						return 'Classic';
						break;
					case '2':
						return '48h';
						break;
					case '3':
						return '7j';
						break;
					case '4':
						return '10j';
						break;
					case '5':
						return 'Noël';
						break;
					case '6':
						return 'Star';
						break;
					case '7':
						return '72h';
						break;
					case '8':
						return '48h Noël';
						break;
					default:
						return 'Unknown';
						break;
				}
			}
			return 'Unknown';
		}

	}

}