<?php

class DeliveryDate extends Module
{
	protected $_warnings = array();

	public function __construct()
	{
		$this->name = 'deliverydate';
		$this->tab = 'shipping_logistics';
		$this->version = '1.4.2';
		$this->module_key = '512f4d91276fa09d3117008695cb3a3c';
		$this->author = 'MARICHAL Emmanuel';

		parent::__construct ();

		$this->displayName = $this->l('Delivery dates');
		$this->description = $this->l('Display delivery dates in order process and product page');

		$this->bootstrap = true;
	}

	public function install()
	{
		Configuration::updateValue('DELIVERYDATE_PREP_TIME', 1);

		$success = Db::getInstance()->Execute('
				CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'delivery_date` (
					`id` int(10) NOT NULL AUTO_INCREMENT,
					`id_carrier` int(10),
					`id_zone` int(10),
					`days` varchar(14) DEFAULT NULL,
					`min` int(10) DEFAULT 0,
					`max` int(10) DEFAULT 0,
					`hours` int(10) DEFAULT 0,
					`minutes` int(10) DEFAULT 0,
					PRIMARY KEY (`id`),
					UNIQUE KEY `DeliveryDateCarrierIndex` (`id_carrier`, `id_zone`)
				) ENGINE='._MYSQL_ENGINE_.' DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;')
			&& Db::getInstance()->Execute('
				CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'delivery_date_history` (
					`id` int(10) NOT NULL AUTO_INCREMENT,
					`id_order` int(10),
					`date_min` date NOT NULL,
					`date_max` date NOT NULL,
					PRIMARY KEY (`id`),
					KEY `DeliveryDateOrderIndex` (`id_order`)
				) ENGINE='._MYSQL_ENGINE_.' DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;')
			&& $this->createExceptionsTable()
			&& parent::install()
			&& $this->registerHook('displayBeforeCarrier')
			&& $this->registerHook('updateCarrier')
			&& $this->registerHook('actionValidateOrder')
			&& $this->registerHook('displayAdminOrder')
			&& $this->registerHook('displayOrderDetail')
			&& $this->registerHook('header')
			&& $this->registerHook('displayPDFInvoice')
			&& $this->registerHook('productTab') // 1.6-1.5
			&& $this->registerHook('productTabContent') // 1.6-1.5
			&& $this->registerHook('displayProductExtraContent') // 1.7
			&& $this->registerHook('displayProductButtons');

		if (version_compare(_PS_VERSION_, '1.6', '>'))
			return $success && $this->registerHook('displayAdminOrderTabShip') && $this->registerHook('displayAdminOrderContentShip');
		else {
			return $success && $this->registerHook('displayAdminOrder');
		}
	}

	private function createExceptionsTable()
	{
		return Db::getInstance()->Execute('
				CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'delivery_date_exceptions` (
					`id` int(10) NOT NULL AUTO_INCREMENT,
					`id_carrier` int(10),
					`id_zone` int(10),
					`date` date NOT NULL,
					`delivery` int(1) DEFAULT 0,
					`preparation` int(1) DEFAULT 0,
					PRIMARY KEY (`id`),
					UNIQUE KEY `DeliveryDateException` (`id_carrier`, `id_zone`)
				) ENGINE='._MYSQL_ENGINE_.' DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;');
	}

	public function hookHeader($params)
	{
		if (Context::getContext()->controller instanceof OrderController)
		{
			$this->context->controller->addJS($this->_path.'views/js/before_carrier.js');
			if (version_compare(_PS_VERSION_, '1.7.0.0', '<')) {
				$this->context->controller->addCSS($this->_path.'views/css/before_carrier.css');
			} else {
				$this->context->controller->addCSS($this->_path.'views/css/before_carrier_17.css');
			}

		}
	}

	public function hookDisplayProductButtons($params)
	{
		if (is_array($params['product']) && $params['product']['is_virtual'])
			return '';
		else if (!is_array($params['product']) && $params['product']->is_virtual)
			return '';

		$carriers = $this->getProductPageCarriers();

		if (empty($carriers))
			return '';

		$best_available = 0;
		$best_oot = 0;

		// Search for the best date
		foreach ($carriers as $carrier)
		{
			if (!$best_available || $carrier['min'] < $best_available)
				$best_available = $carrier['min'];
			if ((isset($carrier['oot_min']) && $carrier['oot_min']) && (!$best_oot || $carrier['oot_min'] < $best_oot))
				$best_oot = $carrier['oot_min'];
		}

		if (!$best_available)
			return '';

		$this->context->smarty->assign('available_text', str_replace(array('[date_min]'), array(date($this->context->language->date_format_lite, $best_available)), $this->l('Delivery expected from [date_min]')));

		if ($best_oot)
			$this->context->smarty->assign('oot_text', str_replace(array('[date_min]'), array(date($this->context->language->date_format_lite, $best_oot)), $this->l('Delivery expected from [date_min]')));

		if (version_compare(_PS_VERSION_, '1.7.0.0', '<'))
			return $this->display(__FILE__, 'views/templates/hook/add_to_cart_block.tpl');
		else
			return $this->display(__FILE__, 'views/templates/hook/add_to_cart_block_17.tpl');
	}

	public function hookProductTab($params)
	{
		if (is_array($params['product']) && (int)$params['product']['is_virtual'])
			return '';
		else if (!is_array($params['product']) && (int)$params['product']->is_virtual)
			return '';

		$carriers = $this->getProductPageCarriers();

		if (!empty($carriers) && Configuration::get('DELIVERYDATE_TABS'))
			return $this->display(__FILE__, 'views/templates/hook/product_tab.tpl');
		else
			return '';
	}

	public function hookProductTabContent($params)
	{
		$this->context->controller->addJS($this->_path.'views/js/product.js');
		$this->context->smarty->assign('tab', Configuration::get('DELIVERYDATE_TABS'));
		return $this->hookDisplayFooterProduct($params);
	}

	private function getProductTabContent($product, $only_content = false)
	{
		if ($product->is_virtual)
			return '';

		$carriers = $this->getProductPageCarriers();

		if (empty($carriers))
			return '';

		$this->context->smarty->assign(array(
			'carriers' => $carriers,
			'only_content' => $only_content
		));

		return $this->display(__FILE__, 'views/templates/hook/product_tab_content.tpl');
	}

	public function hookDisplayProductExtraContent($params)
	{
		$tabs = array();
		$content = $this->getProductTabContent($params['product'], true);

		if (empty($content))
			return $tabs;

		$pec = new PrestaShop\PrestaShop\Core\Product\ProductExtraContent();
		$tabs[] = $pec->setTitle($this->l('Delivery'))->setContent($content);

		$this->context->controller->addJS($this->_path.'views/js/product17.js');
		$this->context->controller->addCSS($this->_path.'views/css/product.css');

		return $tabs;
	}

	public function hookDisplayFooterProduct($params)
	{
		return $this->getProductTabContent($params['product']);
	}

	public function getFormatedDeliveryText($min, $max, $date_format_lite)
	{
		if ($min == $max)
			$text = str_replace(array('[date_min]'), array(date($date_format_lite, $min)), $this->l('Delivery scheduled the [date_min]'));
		else
			$text = str_replace(array('[date_min]', '[date_max]'), array('<b>'.date($date_format_lite, $min).'</b>', '<b>'.date($date_format_lite, $max).'</b>'), $this->l('Delivery scheduled between the [date_min] and [date_max]'));
		return $text;
	}

	private function getProductPageCarriers()
	{
		static $carriers = null;

		if ($carriers)
			return $carriers;

		$carriers = array();

		$config = Configuration::getMultiple(array(
			'DELIVERYDATE_PREP_DAYS',
			'DELIVERYDATE_PREP_TIME',
			'DELIVERYDATE_OUT_OF_STOCK',
			'DELIVERYDATE_PRODUCT',
			'PS_STOCK_MANAGEMENT',
			'DELIVERYDATE_DATE_MAX'
		));

		if (!isset($config['DELIVERYDATE_PREP_DAYS']) || !isset($config['DELIVERYDATE_PRODUCT']) || !$config['DELIVERYDATE_PRODUCT'])
			return $carriers;

		// Get preparation days and exit if at least one day is not selected
		$prep_days = explode(',', $config['DELIVERYDATE_PREP_DAYS']);
		if (array_search(1, $prep_days) === false)
			return $carriers;

		$id_address = $this->context->cart->id_address_delivery;
		if ($id_address)
		{
			$address = new Address($id_address);

			if (!Validate::isLoadedObject($address))
				return false;

			if (!Address::isCountryActiveById($address->id))
				return false;

			$id_zone = Address::getZoneById($address->id);
		}
		else
		{
			$country = new Country(Configuration::get('PS_COUNTRY_DEFAULT'));
			$id_zone = $country->id_zone;
		}

		$product = new Product(Tools::getValue('id_product'));

		if (!Validate::isLoadedObject($product))
			return $carriers;

		$product->loadStockData();
		$available_carriers = Carrier::getAvailableCarrierList($product, 0);

		if (!$available_carriers || !is_array($available_carriers) || empty($available_carriers))
			return $carriers;

		$conditions = Db::getInstance()->ExecuteS('
			SELECT dd.*, c.name
			FROM '._DB_PREFIX_.'delivery_date dd
			LEFT JOIN '._DB_PREFIX_.'carrier c ON c.id_carrier = dd.id_carrier
			WHERE dd.id_zone = '.(int)$id_zone.'
				AND dd.id_carrier IN ('.implode(',', array_map('intval', array_values($available_carriers))).')
		');

		if (!$conditions || empty($conditions))
			return $carriers;

		foreach ($conditions as $condition)
		{
			$exceptions = self::getDeliveryExceptions($id_zone, $condition['id_carrier']);
			$dates = self::getDeliveryDelay($condition, $exceptions, $config, $prep_days, $product->quantity <= 0 ? true : false);
			$oot_dates = $config['PS_STOCK_MANAGEMENT'] ? self::getDeliveryDelay($condition, $exceptions, $config, $prep_days, true) : false;

			$carriers[$condition['id_carrier']] = array();
			$carriers[$condition['id_carrier']]['logo'] = _THEME_SHIP_DIR_.$condition['id_carrier'].'.jpg';
			$carriers[$condition['id_carrier']]['name'] = $condition['name'];
			$carriers[$condition['id_carrier']]['date'] = $this->getFormatedDeliveryText($dates['start'], $dates['end'], $this->context->language->date_format_lite);
			$carriers[$condition['id_carrier']]['min'] = $dates['start'];
			if ($oot_dates)
			{
				$carriers[$condition['id_carrier']]['oot_date'] = $this->getFormatedDeliveryText($oot_dates['start'], $oot_dates['end'], $this->context->language->date_format_lite);
				$carriers[$condition['id_carrier']]['oot_min'] = $oot_dates['start'];
			}
		}
		return $carriers;
	}

	public function hookDisplayOrderDetail($params)
	{
		$id_order = $params['order']->id;
		$dates = Db::getInstance()->getRow('SELECT date_min AS min, date_max AS max FROM '._DB_PREFIX_.'delivery_date_history WHERE id_order = '.(int)$id_order);

		if (!$dates)
			return '';

		$dates['min'] = date($this->context->language->date_format_lite, strtotime($dates['min']));
		$dates['max'] = date($this->context->language->date_format_lite, strtotime($dates['max']));
		if ($dates['min'] == $dates['max'])
			$text = str_replace(array('[date_min]'), array($dates['min']), $this->l('Delivery scheduled the [date_min]'));
		else
			$text = str_replace(array('[date_min]', '[date_max]'), array($dates['min'], $dates['max']), $this->l('Delivery scheduled between the [date_min] and [date_max]'));

		$this->context->smarty->assign('text', $text);

		return $this->display(__FILE__, 'views/templates/hook/order_detail.tpl');;
	}

	public function hookPDFInvoice($params)
	{
		return $this->hookDisplayPDFInvoice($params);
	}

	public function hookDisplayPDFInvoice($params)
	{
		$id_order = (_PS_VERSION_ > '1.5' ? $params['object']->id_order : $params['id_order']);
		$dates = Db::getInstance()->getRow('SELECT date_min AS min, date_max AS max FROM '._DB_PREFIX_.'delivery_date_history WHERE id_order = '.(int)$id_order);

		if (!$dates)
			return '';

		$dates['min'] = date($this->context->language->date_format_lite, strtotime($dates['min']));
		$dates['max'] = date($this->context->language->date_format_lite, strtotime($dates['max']));
		$text = str_replace(array('[date_min]', '[date_max]'), array($dates['min'], $dates['max']), $this->l('Delivery scheduled between the [date_min] and [date_max]'));

		if (_PS_VERSION_ > '1.5')
			return $text;
		else
		{
			$pdf = $params['pdf'];
			$pdf->Ln(10);
			$pdf->Cell(0, 0, utf8_decode($text));
		}
	}

	public function hookUpdateCarrier($params)
	{
		Db::getInstance()->Execute('
			UPDATE '._DB_PREFIX_.'delivery_date
			SET id_carrier = '.(int)$params['carrier']->id.'
			WHERE id_carrier = '.(int)$params['id_carrier']);
	}

	public function hookNewOrder($params)
	{
		return $this->hookActionValidateOrder($params);
	}

	public function hookActionValidateOrder($params)
	{
		$condition = Db::getInstance()->getRow('
			SELECT * FROM '._DB_PREFIX_.'delivery_date
			WHERE id_carrier = '.(int)$params['cart']->id_carrier.'
				AND id_zone = '.(int)Address::getZoneById($params['cart']->id_address_delivery)
		);

		$config = Configuration::getMultiple(array(
			'DELIVERYDATE_PREP_DAYS',
			'DELIVERYDATE_PREP_TIME',
			'DELIVERYDATE_OUT_OF_STOCK',
			'PS_STOCK_MANAGEMENT',
			'DELIVERYDATE_DATE_MAX'
		));

		if (!$condition || !isset($config['DELIVERYDATE_PREP_DAYS']))
			return;

		// Get preparation days and exit if at least one day is not selected
		$prep_days = explode(',', $config['DELIVERYDATE_PREP_DAYS']);
		if (array_search(1, $prep_days) === false)
			return;

		$outofstock = $config['PS_STOCK_MANAGEMENT'] ? $this->cartContainsOutOfStockProducts() : false;

		$id_zone = Address::getZoneById($params['cart']->id_address_delivery);
		$exceptions = self::getDeliveryExceptions($id_zone, $params['cart']->id_carrier);
		$delay = self::getDeliveryDelay($condition, $exceptions, $config, $prep_days, $outofstock);

		Db::getInstance()->execute('
			INSERT INTO '._DB_PREFIX_.'delivery_date_history (id_order, date_min, date_max)
			VALUES('.(int)$params['order']->id.', "'.date('Y-m-d', $delay['start']).'", "'.date('Y-m-d', $delay['end']).'")');
	}

	public function hookAdminOrder($params)
	{
		return $this->hookDisplayAdminOrder($params);
	}

	private function getOrderDeliveryDates($id_order)
	{
		static $dates = null;

		if ($dates !== null)
			return $dates;

		$dates = Db::getInstance()->getRow('
			SELECT UNIX_TIMESTAMP(date_min) AS date_min, UNIX_TIMESTAMP(date_max) AS date_max
			FROM '._DB_PREFIX_.'delivery_date_history
			WHERE id_order = '.(int)$id_order
		);

		if ($dates)
			$dates = array(
				'date_min' => date($this->context->language->date_format_lite, $dates['date_min']),
				'date_max' => date($this->context->language->date_format_lite, $dates['date_max'])
			);

		return $dates;
	}

	public function hookDisplayAdminOrderTabShip($params)
	{
		$dates = $this->getOrderDeliveryDates($params['order']->id);

		if (!$dates)
			return '';
		else
			return $this->display(__FILE__, 'admin_order_tab_ship.tpl');
	}

	public function hookDisplayAdminOrderContentShip($params)
	{
		$dates = $this->getOrderDeliveryDates($params['order']->id);

		if (!$dates)
			return '';
		else
		{
			$this->context->smarty->assign($dates);
			return $this->display(__FILE__, 'admin_order_content_ship.tpl');
		}
	}

	public function hookDisplayAdminOrder($params)
	{
		if (version_compare(_PS_VERSION_, '1.6.0.0', '>='))
			return;

		$dates = $this->getOrderDeliveryDates($params['id_order']);

		if (!$dates)
			return '';
		else
		{
			$this->context->smarty->assign($dates);
			return $this->display(__FILE__, 'admin_order.tpl');
		}
	}

	private static function getDeliveryDelay($condition, $exceptions, $config, $prep_days, $outofstock)
	{
		$days = 0;
		$delay = array();

		// Making sure that max is > than min
		if ($condition['min'] > $condition['max'])
		{
			$real_max = $condition['min'];
			$condition['min'] = $condition['max'];
			$condition['max'] = $real_max;
		}

		// Check if today is count as an expedition day
		if (strtotime($condition['hours'].':'.$condition['minutes']) < strtotime('now'))
			$days += 1;

		// Additionnal time for out of stock
		if ($outofstock && !$config['DELIVERYDATE_DATE_MAX'])
			$days += (int)$config['DELIVERYDATE_OUT_OF_STOCK'];

		// Add preparation time
		$time = (int)$config['DELIVERYDATE_PREP_TIME'];
		while ($time)
		{
			$index = date('w', strtotime('+'.$days.' day'));
			$date = date('Y-m-d', strtotime('+'.$days.' day'));
			if ($prep_days[$index ? $index - 1 : 6] == 1 && !in_array($date, $exceptions['preparation']))
				$time -= 1;
			$days += 1;
		}

		// Get delivery days
		$delivery = explode(',', $condition['days']);

		// Add days until min delay is reach (-1 because first day is count as a delivery day)
		$min = (int)$condition['min'] - 1;
		$index = date('w', strtotime('+'.$days.' day'));
		while (in_array(date('Y-m-d', strtotime('+'.$days.' day')), $exceptions['delivery']) || $delivery[$index ? $index - 1 : 6] == 0)
		{
			$days += 1;
			$index = date('w', strtotime('+'.$days.' day'));
		}

		while ($min > 0)
		{
			$index = date('w', strtotime('+'.$days.' day'));
			$date = date('Y-m-d', strtotime('+'.$days.' day'));

			if ($delivery[$index ? $index - 1 : 6] == 1 && !in_array($date, $exceptions['delivery']))
				$min -= 1;
			$days += 1;

			// Making sure that we don't stop on a non-delivery day
			if ($min == 0)
			{
				$index = date('w', strtotime('+'.$days.' day'));
				while ($delivery[$index ? $index - 1 : 6] == 0 || in_array(date('Y-m-d', strtotime('+'.$days.' day')), $exceptions['delivery']))
				{
					$days += 1;
					$index = date('w', strtotime('+'.$days.' day'));
				}
			}
		}

		// Save the date
		$delay['start'] = strtotime('+'.$days.' day');

		// Additionnal time for out of stock
		if ($outofstock && $config['DELIVERYDATE_DATE_MAX'])
			$days += (int)$config['DELIVERYDATE_OUT_OF_STOCK'];

		// Add days until max delay is reach
		$max = (int)$condition['max'] - (int)$condition['min'];
		while ($max)
		{
			$index = date('w', strtotime('+'.$days.' day'));
			$date = date('Y-m-d', strtotime('+'.$days.' day'));

			if ($delivery[$index ? $index - 1 : 6] == 1 && !in_array($date, $exceptions['delivery']))
				$max--;
			$days += 1;

			// Making sure that we don't stop on a non-delivery day
			if ($max == 0)
			{
				$index = date('w', strtotime('+'.$days.' day'));
				while ($delivery[$index ? $index - 1 : 6] == 0 || in_array(date('Y-m-d', strtotime('+'.$days.' day')), $exceptions['delivery']))
				{
					$days += 1;
					$index = date('w', strtotime('+'.$days.' day'));
				}
			}
		}

		// Save the date
		$delay['end'] = strtotime('+'.$days.' day');

		return $delay;
	}

	private function cartContainsOutOfStockProducts()
	{
		foreach ($this->context->cart->getProducts() as $product)
			if ($product['stock_quantity'] < $product['cart_quantity'])
				return true;

		return false;
	}

	public function hookBeforeCarrier($params)
	{
		return $this->hookDisplayBeforeCarrier($params);
	}

	public function getDeliveryExceptions($id_zone, $id_carrier)
	{
		static $exceptions = null;

		if ($exceptions === null)
			$exceptions = Db::getInstance()->ExecuteS('SELECT * FROM '._DB_PREFIX_.'delivery_date_exceptions WHERE id_zone = '.(int)$id_zone);

		$values = array('preparation' => array(), 'delivery' => array());

		if ($exceptions)
			foreach ($exceptions as $exception)
				if ($exception['id_carrier'] == $id_carrier)
				{
					if (!$exception['preparation'])
						$values['preparation'][] = $exception['date'];
					if (!$exception['delivery'])
						$values['delivery'][] = $exception['date'];
				}

		return $values;
	}

	public function hookDisplayBeforeCarrier($params)
	{
		$id_zone = Address::getZoneById($this->context->cart->id_address_delivery);
		$conditions = Db::getInstance()->ExecuteS('SELECT * FROM '._DB_PREFIX_.'delivery_date WHERE id_zone = '.(int)$id_zone);
		$carriers = Carrier::getCarriersForOrder($id_zone, Customer::getGroupsStatic($this->context->cart->id_customer));
		$deliveries = array();
		$config = Configuration::getMultiple(array(
			'DELIVERYDATE_PREP_DAYS',
			'DELIVERYDATE_PREP_TIME',
			'DELIVERYDATE_OUT_OF_STOCK',
			'PS_STOCK_MANAGEMENT',
			'DELIVERYDATE_POSITION',
			'DELIVERYDATE_REASON',
			'DELIVERYDATE_DATE_MAX'
		));

		if (!$conditions || empty($carriers) || !isset($config['DELIVERYDATE_PREP_DAYS']))
			return false;

		$outofstock = $config['PS_STOCK_MANAGEMENT'] ? $this->cartContainsOutOfStockProducts() : false;

		// Get preparation days and exit if at least one day is not selected
		$prep_days = explode(',', $config['DELIVERYDATE_PREP_DAYS']);
		if (array_search(1, $prep_days) === false)
			return;

		foreach ($carriers as $carrier)
			foreach ($conditions as $condition)
				if ((int)$condition['id_carrier'] == (int)$carrier['id_carrier'])
				{
					$exceptions = self::getDeliveryExceptions($id_zone, $carrier['id_carrier']);
					$delay = self::getDeliveryDelay($condition, $exceptions, $config, $prep_days, $outofstock);
					$deliveries[$carrier['id_carrier']] = array();
					$deliveries[$carrier['id_carrier']]['name'] = $carrier['name'];
					$deliveries[$carrier['id_carrier']]['start'] = date($this->context->language->date_format_lite, $delay['start']);
					$deliveries[$carrier['id_carrier']]['end'] = date($this->context->language->date_format_lite, $delay['end']);
				}

		$this->context->smarty->assign(array(
			'deliveries' => Tools::jsonEncode($deliveries),
			'position' => isset($config['DELIVERYDATE_POSITION']) ? $config['DELIVERYDATE_POSITION'] : 'bottom',
			'reason' => isset($config['DELIVERYDATE_REASON']) ? $config['DELIVERYDATE_REASON'] : ''
		));

		return $this->display(__FILE__, 'views/templates/hook/before_carrier_js.tpl').$this->display(__FILE__, 'views/templates/hook/before_carrier.tpl');
	}

	private function saveRule()
	{
		if (Tools::getValue('min') == 0 || Tools::getValue('max') == 0)
		{
			$this->_errors[] = $this->l('Delivery time must be at least 1 day');
			return false;
		}

		$days = implode(',', array(
			(int)Tools::getValue('monday'),
			(int)Tools::getValue('tuesday'),
			(int)Tools::getValue('wednesday'),
			(int)Tools::getValue('thursday'),
			(int)Tools::getValue('friday'),
			(int)Tools::getValue('saturday'),
			(int)Tools::getValue('sunday'))
		);

		$errors = array();

		$id_carrier = Tools::getValue('carrier');
		if (!Validate::isUnsignedInt($id_carrier) || !$id_carrier)
			$errors[] = $this->l('You must select a carrier');

		$id_zone = Tools::getValue('zone');
		if (!Validate::isUnsignedInt($id_zone) || !$id_zone)
			$errors[] = $this->l('You must select a zone');

		$min = Tools::getValue('min');
		if (!Validate::isUnsignedInt($min) || !$min)
			$errors[] = $this->l('You must set a min value');

		$max = Tools::getValue('max');
		if (!Validate::isUnsignedInt($max) || !$max)
			$errors[] = $this->l('You must set a max value');

		$hours = Tools::getValue('hours');
		if (!Validate::isUnsignedInt($hours) || !$hours)
			$errors[] = $this->l('Wrong expedition limit');

		$minutes = Tools::getValue('minutes');
		if (!Validate::isUnsignedInt($minutes) || !$minutes)
			$errors[] = $this->l('Wrong expedition limit');

		$id_rule = Tools::getValue('id_rule');
		if ($id_rule)
			$sql = 'UPDATE '._DB_PREFIX_.'delivery_date
				SET id_carrier = '.(int)$id_carrier.', id_zone = '.(int)$id_zone.', days = "'.pSQL($days).'", min = '.(int)$min.', max = '.(int)$max.', hours = '.(int)$hours.', minutes = '.(int)$minutes.'
				WHERE id = '.(int)$id_rule;
		else
			$sql = 'INSERT INTO '._DB_PREFIX_.'delivery_date (id_carrier, id_zone, days, min, max, hours, minutes)
							VALUES('.(int)$id_carrier.', '.(int)$id_zone.', "'.pSQL($days).'",
										 '.(int)$min.', '.(int)$max.', '.(int)$hours.', '.(int)$min.')';

		try {
			if (!Db::getInstance()->Execute($sql))
				throw new PrestaShopDatabaseException();
			$this->_confirmations[] = $this->l('Saved with success');
		}
		catch (PrestaShopDatabaseException $e) {
			$this->_errors[] = $this->l('An error occurred');
			return false;
		}

		return true;
	}

	private function saveException()
	{
		$errors = array();

		$date = Tools::getValue('date');
		if (!$date || !Validate::isDate($date))
			$errors[] = $this->l('You must select a date');

		$id_carrier = Tools::getValue('carrier');
		if (!Validate::isUnsignedInt($id_carrier) || !$id_carrier)
			$errors[] = $this->l('You must select a carrier');

		$id_zone = Tools::getValue('zone');
		if (!Validate::isUnsignedInt($id_zone) || !$id_zone)
			$errors[] = $this->l('You must select a zone');

		if (count($errors))
		{
			$this->_errors = array_merge($this->_errors, $errors);
			return false;
		}

		$preparation = Tools::getValue('preparation') ? 1 : 0;
		$delivery = Tools::getValue('delivery') ? 1 : 0;

		$id_exception = Tools::getValue('id_exception');
		if ($id_exception)
			$sql = 'UPDATE '._DB_PREFIX_.'delivery_date_exceptions
							SET id_carrier = '.(int)$id_carrier.', id_zone = '.(int)$id_zone.', date = "'.pSQL($date).'", preparation = '.(int)$preparation.', delivery = '.(int)$delivery.'
							WHERE id = '.(int)$id_exception;
		else
			$sql = 'INSERT INTO '._DB_PREFIX_.'delivery_date_exceptions (id_carrier, id_zone, date, preparation, delivery)
							VALUES('.(int)$id_carrier.', '.(int)$id_zone.', "'.pSQL($date).'",
								'.(int)$preparation.', '.(int)$delivery.')';

		try {
			if (!Db::getInstance()->Execute($sql))
				throw new PrestaShopDatabaseException();
			$this->_confirmations[] = $this->l('Saved with success');
		}
		catch (PrestaShopDatabaseException $e) {
			$this->_errors[] = $this->l('An error occurred');
			return false;
		}

		return true;
	}

	private function delCondition($id)
	{
		$_GET['dd_tab'] = 'rules';
		if (Db::getInstance()->execute('DELETE FROM '._DB_PREFIX_.'delivery_date WHERE id = '.(int)$id))
		{
			$this->_confirmations[] = $this->l('Rule deleted with success');
			return true;
		}
		else
		{
			$this->_errors[] = $this->l('An error occurred');
			return false;
		}
	}

	private function delException($id)
	{
		$_GET['dd_tab'] = 'exceptions';
		if (Db::getInstance()->execute('DELETE FROM '._DB_PREFIX_.'delivery_date_exceptions WHERE id = '.(int)$id))
		{
			$this->_confirmations[] = $this->l('Exception deleted with success');
			return true;
		}
		else
		{
			$this->_errors[] = $this->l('An error occurred');
			return false;
		}
	}

	private function saveSettings()
	{
		$errors = array();

		if (Tools::getValue('prep_time') == 0)
			$errors[] = $this->l('Preparation time must be at least 1 day.');

		if (!Validate::isMessage(Tools::getValue('reason')))
			$errors[] = $this->l('Your message can\'t contain HTML.');

		if (count($errors))
		{
			$this->_errors = array_merge($this->_errors, $errors);
			return false;
		}

		Configuration::updateValue('DELIVERYDATE_PREP_DAYS', implode(',', array(
			(int)Tools::getValue('monday'),
			(int)Tools::getValue('tuesday'),
			(int)Tools::getValue('wednesday'),
			(int)Tools::getValue('thursday'),
			(int)Tools::getValue('friday'),
			(int)Tools::getValue('saturday'),
			(int)Tools::getValue('sunday')
		)));

		Configuration::updateValue('DELIVERYDATE_PREP_TIME', (int)Tools::getValue('prep_time'));
		Configuration::updateValue('DELIVERYDATE_OUT_OF_STOCK', (int)Tools::getValue('outofstock'));
		Configuration::updateValue('DELIVERYDATE_POSITION', Tools::getValue('position'));
		Configuration::updateValue('DELIVERYDATE_REASON', Tools::getValue('reason'));
		Configuration::updateValue('DELIVERYDATE_PRODUCT', Tools::getValue('product'));
		Configuration::updateValue('DELIVERYDATE_TABS', (bool)Tools::getValue('tabs'));
		Configuration::updateValue('DELIVERYDATE_DATE_MAX', (bool)Tools::getValue('max_date'));

		$this->_confirmations[] = $this->l('Settings saved with success');

		return true;
	}

	private function renderMainView()
	{
		$this->context->controller->addCSS($this->_path.'views/css/settings.css');

		$config = Configuration::getMultiple(array(
			'DELIVERYDATE_PREP_DAYS',
			'DELIVERYDATE_PREP_TIME',
			'DELIVERYDATE_OUT_OF_STOCK',
			'DELIVERYDATE_POSITION',
			'DELIVERYDATE_REASON',
			'DELIVERYDATE_TABS',
			'DELIVERYDATE_PRODUCT',
			'DELIVERYDATE_DATE_MAX'
		));

		$carriers = Carrier::getCarriers((int)$this->context->cookie->lang, false, false, false, null, Carrier::ALL_CARRIERS);
		if (!$carriers)
		{
			$this->_errors[] = $this->l('You must create an active carrier before using this module');
			return false;
		}

		$zones = Zone::getZones(true);
		if (!$zones)
		{
			$this->_errors[] = $this->l('You must create an active zone before using this module');
			return false;
		}

		$conditions = Db::getInstance()->ExecuteS('
			SELECT dd.id, dd.id_carrier, dd.id_zone, dd.min, dd.max, dd.days, CONCAT(LPAD(dd.hours, 2, 0), CONCAT("h", LPAD(dd.minutes, 2, 0))) time_limit, z.name zone_name, c.name carrier_name
			FROM '._DB_PREFIX_.'delivery_date dd
			LEFT JOIN '._DB_PREFIX_.'zone z ON (z.id_zone = dd.id_zone)
			LEFT JOIN '._DB_PREFIX_.'carrier c ON c.id_carrier = dd.id_carrier
			ORDER BY dd.id_carrier, dd.id_zone ASC
		');

		foreach ($conditions as &$condition)
		{
			$days = explode(',', $condition['days']);
			$condition['monday'] = isset($days[0]) ? (int)$days[0] : 0;
			$condition['tuesday'] = isset($days[1]) ? (int)$days[1] : 0;
			$condition['wednesday'] = isset($days[2]) ? (int)$days[2] : 0;
			$condition['thursday'] = isset($days[3]) ? (int)$days[3] : 0;
			$condition['friday'] = isset($days[4]) ? (int)$days[4] : 0;
			$condition['saturday'] = isset($days[5]) ? (int)$days[5] : 0;
			$condition['sunday'] = isset($days[6]) ? (int)$days[6] : 0;
		}

		$days = isset($config['DELIVERYDATE_PREP_DAYS']) ? explode(',', $config['DELIVERYDATE_PREP_DAYS']) : array();
		if (!is_array($days))
			$days = array();

		$this->context->smarty->assign(array(
			'zones' => $zones,
			'carriers' => $carriers,
			'days' => $days,
			'config' => $config
		));

		// Assign rules data
		$this->smarty->assign(array(
			'data_rules' => Tools::jsonEncode(array(
				'columns' => array(
					array('content' => 'ID', 'key' => 'id', 'center' => true),
					array('content' => $this->l('Carrier'), 'key' => 'carrier_name'),
					array('content' => $this->l('Zone'), 'key' => 'zone_name'),
					array('content' => $this->l('Min days'), 'key' => 'min', 'center' => true),
					array('content' => $this->l('Max days'), 'key' => 'max', 'center' => true),
					array('content' => $this->l('Monday'), 'key' => 'monday', 'bool' => true, 'center' => true),
					array('content' => $this->l('Tuesday'), 'key' => 'tuesday', 'bool' => true, 'center' => true),
					array('content' => $this->l('Wednesday'), 'key' => 'wednesday', 'bool' => true, 'center' => true),
					array('content' => $this->l('Thursday'), 'key' => 'thursday', 'bool' => true, 'center' => true),
					array('content' => $this->l('Friday'), 'key' => 'friday', 'bool' => true, 'center' => true),
					array('content' => $this->l('Saturday'), 'key' => 'saturday', 'bool' => true, 'center' => true),
					array('content' => $this->l('Sunday'), 'key' => 'sunday', 'bool' => true, 'center' => true),
					array('content' => $this->l('Expedition limit'), 'key' => 'time_limit', 'center' => true),
				),
				'rows' => $conditions,
				'rows_actions' => array(
					array('title' => 'Edit', 'action' => 'edit_rule', 'icon' => 'pencil', 'img' => '../img/admin/edit.gif'),
					array('title' => 'Delete', 'action' => 'delete_rule', 'icon' => 'trash', 'img' => '../img/admin/delete.gif')
				),
				'top_actions' => array(
					array('title' => $this->l('Add rule'), 'action' => 'add_rule', 'icon' => 'add', 'img' => 'themes/default/img/process-icon-new.png'),
				),
				'url_params' => array('configure' => $this->name),
				'identifier' => 'id'
			))
		));

		$exceptions = Db::getInstance()->ExecuteS('
			SELECT dde.id, dde.id_carrier, dde.id_zone, dde.date, dde.preparation, dde.delivery, z.name zone_name, c.name carrier_name
			FROM '._DB_PREFIX_.'delivery_date_exceptions dde
			LEFT JOIN '._DB_PREFIX_.'zone z ON (z.id_zone = dde.id_zone)
			LEFT JOIN '._DB_PREFIX_.'carrier c ON c.id_carrier = dde.id_carrier
			ORDER BY dde.date, dde.id_carrier, dde.id_zone ASC'
		);

		foreach($exceptions as &$exception)
			$exception['date'] = Tools::displayDate($exception['date'], $this->context->language->date_format_lite);

		// Assign exceptions data
		$this->smarty->assign(array(
			'data_exceptions' => Tools::jsonEncode(array(
				'columns' => array(
					array('content' => 'ID', 'key' => 'id', 'center' => true),
					array('content' => $this->l('Carrier'), 'key' => 'carrier_name'),
					array('content' => $this->l('Zone'), 'key' => 'zone_name'),
					array('content' => $this->l('Date'), 'key' => 'date'),
					array('content' => $this->l('Preparation'), 'key' => 'preparation', 'bool' => true, 'center' => true),
					array('content' => $this->l('Delivery'), 'key' => 'delivery', 'bool' => true, 'center' => true),
				),
				'rows' => $exceptions,
				'rows_actions' => array(
					array('title' => 'Edit', 'action' => 'edit_exception', 'icon' => 'pencil', 'img' => '../img/admin/edit.gif'),
					array('title' => 'Delete', 'action' => 'delete_exception', 'icon' => 'trash', 'img' => '../img/admin/delete.gif')
				),
				'top_actions' => array(
					array('title' => $this->l('Add exception'), 'action' => 'add_exception', 'icon' => 'add', 'img' => 'themes/default/img/process-icon-new.png'),
				),
				'url_params' => array('configure' => $this->name),
				'identifier' => 'id'
			))
		));

		$modules = $this->getAddonsModules();
		if (is_array($modules)) {
			shuffle($modules);
		}

		$this->smarty->assign(array(
			'current_url' => $this->context->link->getAdminLink('AdminModules').'&configure='.$this->name.'&tab_module=shipping_logistics&module_name='.$this->name,
			'dd_tab' => Tools::getValue('dd_tab'),
			'modules' => $modules,
			'ps17' => version_compare(_PS_VERSION_, '1.7.0.0', '>='),
			'doc_iso' => (file_exists(_PS_MODULE_DIR_.$this->name.'/docs/readme_'.$this->context->language->iso_code.'.pdf') ? $this->context->language->iso_code : 'en')
		));

		return $this->display(__FILE__, 'views/templates/admin/settings.tpl');
	}


	private function renderAddRuleView()
	{
		$id_rule = Tools::getValue('id');

		if ($id_rule)
		{
			$rule = Db::getInstance()->getRow('SELECT * FROM '._DB_PREFIX_.'delivery_date WHERE id = '.(int)$id_rule);
			if ($rule)
			{
				$days = explode(',', $rule['days']);
				$this->smarty->assign(array(
					'rule' => $rule,
					'days' => is_array($days) ? $days : array(),
					'id_rule' => $id_rule
				));
			}
		}

		$current_url = $this->context->link->getAdminLink('AdminModules').'&configure='.$this->name.'&dd_tab=rules&module_name='.$this->name.'&action=add_rule';
		if ($id_rule && $rule)
			$current_url .= '&id_rule='.(int)$id_rule;
		$cancel_url = $this->context->link->getAdminLink('AdminModules').'&configure='.$this->name.'&tab_module=shipping_logistics&dd_tab=rules&module_name='.$this->name;

		$this->smarty->assign(array(
			'current_url' => $current_url,
			'cancel_url' => $cancel_url,
			'carriers' => Carrier::getCarriers($this->context->cookie->lang, false, false, false, null, ALL_CARRIERS),
			'zones' => Zone::getZones(true),
			'doc_iso' => (file_exists(_PS_MODULE_DIR_.$this->name.'/docs/readme_'.$this->context->language->iso_code.'.pdf') ? $this->context->language->iso_code : 'en')
		));

		$this->context->controller->addCSS($this->_path.'views/css/add_rule.css');

		return $this->display(__FILE__, 'views/templates/admin/add_rule.tpl');
	}


	private function renderAddExceptionView()
	{
		$id_exception = Tools::getValue('id');
		$exception = false;

		if ($id_exception)
		{
			$exception = Db::getInstance()->getRow('SELECT * FROM '._DB_PREFIX_.'delivery_date_exceptions WHERE id = '.(int)$id_exception);
			if ($exception)
				$this->smarty->assign('exception', $exception);
		}

		$current_url = $this->context->link->getAdminLink('AdminModules').'&configure='.$this->name.'&dd_tab=exceptions&module_name='.$this->name.'&action=add_exception';
		if ($id_exception && $exception)
			$current_url .= '&id_exception='.(int)$id_exception;
		$cancel_url = $this->context->link->getAdminLink('AdminModules').'&configure='.$this->name.'&tab_module=shipping_logistics&dd_tab=exceptions&module_name='.$this->name;

		$this->smarty->assign(array(
			'current_url' => $current_url,
			'cancel_url' => $cancel_url,
			'carriers' => Carrier::getCarriers($this->context->cookie->lang, false, false, false, null, ALL_CARRIERS),
			'zones' => Zone::getZones(true),
			'doc_iso' => (file_exists(_PS_MODULE_DIR_.$this->name.'/docs/readme_'.$this->context->language->iso_code.'.pdf') ? $this->context->language->iso_code : 'en')
		));

		$this->context->controller->addJqueryUI('ui.datepicker');

		return $this->display(__FILE__, 'views/templates/admin/add_exception.tpl');
	}

	private function getAddonsModules()
	{
		if (version_compare(_PS_VERSION_, '1.6.0.0', '<'))
			return false;

		$modules = Configuration::get('DELIVERYDATE_MODULES');
		$modules_date = Configuration::get('DELIVERYDATE_MODULES_DATE');

		if ($modules && strtotime('+1 WEEK', $modules_date) > time())
			return Tools::jsonDecode($modules);

		$post_data = http_build_query(array(
			'version' => _PS_VERSION_,
			'iso_lang' => Tools::strtolower(Context::getContext()->language->iso_code),
			'iso_code' => Tools::strtolower(Country::getIsoById(Configuration::get('PS_COUNTRY_DEFAULT'))),
			'module_key' => $this->module_key,
			'method' => 'contributor',
			'action' => 'all_products'
		));

		$context = stream_context_create(array(
			'http' => array(
				'method'	=> 'POST',
				'content' => $post_data,
				'header'	=> 'Content-type: application/x-www-form-urlencoded',
				'timeout' => 5
			)
		));
		$content = Tools::file_get_contents('https://api.addons.prestashop.com', false, $context);

		if (!$content)
			return false;

		$json = Tools::jsonDecode($content);

		if (!isset($json->products))
			return false;

		Configuration::updateValue('DELIVERYDATE_MODULES', Tools::jsonEncode($json->products));
		Configuration::updateValue('DELIVERYDATE_MODULES_DATE', time());

		return $json->products;
	}

	public function getContent()
	{
		// Checking if exceptions table exists (since 1.2.0)
		$exceptions_table = Db::getInstance()->ExecuteS('SHOW TABLES LIKE "'._DB_PREFIX_.'delivery_date_exceptions"');
		if (!$exceptions_table || empty($exceptions_table))
		{
			$this->createExceptionsTable();
			$this->registerHook('displayFooterProduct');
			$this->registerHook('productTab');
			$this->registerHook('productTabContent');
		}

		// Dispatcher
		switch (Tools::getValue('action')) {

			case 'delete_rule':
				$this->delCondition(Tools::getValue('id'));
				$html = $this->renderMainView();
				break;

			case 'delete_exception':
				$this->delException(Tools::getValue('id'));
				$html = $this->renderMainView();
				break;

			case 'save_settings':
				$this->saveSettings();
				$html = $this->renderMainView();
				break;

			case 'add_rule':
			case 'edit_rule':
				if ((Tools::isSubmit('addRule') && !$this->saveRule()) || !Tools::isSubmit('addRule'))
					$html = $this->renderAddRuleView();
				else
					$html = $this->renderMainView();
				break;

			case 'add_exception':
			case 'edit_exception':
				if (!(Tools::isSubmit('addException') && $this->saveException()))
				{
					$html = $this->renderAddExceptionView();
					break;
				}

			default:
				$html = $this->renderMainView();
		}

		$this->context->controller->addJS($this->_path.'views/js/riot.js');

		if (!(int)Configuration::get('PS_DISPLAY_QTIES') && (int)Configuration::get('DELIVERYDATE_PRODUCT'))
			$this->_warnings[] = $this->l('If you have issues with the dates on the product sheet, try yo activate the "Display available quantities on the product page" option in the "Preferences > Product".');

		$this->smarty->assign(array(
			'errors' => $this->_errors,
			'confirmations' => $this->_confirmations,
			'warnings' => $this->_warnings
		));

		$alerts = $this->display(__FILE__, 'views/templates/admin/alerts.tpl');

		if (version_compare(_PS_VERSION_, '1.6.0.0', '>='))
			$satisfaction = $this->display(__FILE__, 'views/templates/admin/satisfaction.tpl');
		else
			$satisfaction = '';

		return $alerts.$html.$satisfaction.$this->display(__FILE__, 'views/templates/admin/prestui/ps-tags.tpl');
	}
}