<?php

class AddFileOrder extends Module
{
	protected $token = '5d4f496cffb54a296b2a539cc8fda9c19876cc43';

	public function __construct()
	{
		$this->name = 'addfileorder';
		$this->tab = 'back_office_order_feature';
		$this->version = '1.0';
		$this->author = 'Antadis';
		$this->need_instance = 0;
		$this->ps_versions_compliance = array('min' => '1.5', 'max' => _PS_VERSION_);
		
		parent::__construct();

		$this->displayName = $this->l('Add file in order');
		$this->description = $this->l('Ajout de fichier pour une commande');

		$this->confirmUninstall = $this->l('Are you sure you want to uninstall this module?');
	}

	public function install()
	{
		return parent::install() && $this->registerHook('DisplayAdminOrder') && $this->registerHook('displayOrderDetail') && $this->registerHook('DisplayHeader');
	}

	public function hookDisplayHeader($params)
	{
		Tools::addCSS($this->_path.'views/css/addfileorder.css', 'all');
		Tools::addJS($this->_path.'views/js/addfileorder.js', 'all');
	}

	public function  hookDisplayAdminOrder($params)
	{
		Tools::addCSS($this->_path.'views/css/addfileorder.css', 'all');
		Tools::addJS($this->_path.'views/js/addfileorder.js', 'all');

		$id_order = Tools::getValue('id_order');
		$error_add = null;
		$error_del = null;

		if(isset($_FILES['file'])) {
			$error_add = $this->addFileGet($id_order);
		}

		if(Tools::getValue('fileName')) {
			$error_del = $this->deleteFile(Tools::getValue('fileName'), $id_order);
		}

		$this->context->smarty->assign(
			array(
				'dirExist' => $this->checkOrderDir($id_order),
				'files' => $this->getFileOrderAdmin($id_order),
				'file_add_success' => $error_add,
				'file_delete_success' => $error_del,
				)
			);

		return $this->display(__FILE__, 'views/templates/admin/addfileorder.tpl');
	}

	public function  hookDisplayOrderDetail($params)
	{
		$id_order = Tools::getValue('id_order');

		$this->context->smarty->assign(
			array(
				'dirExist' => $this->checkOrderDir($id_order),
				'files' => $this->getFileOrderCustomer($id_order),
				)
			);

		return $this->display(__FILE__, 'views/templates/hook/addfileorder.tpl');
	}

	private function deleteFile($name, $orderNumber)
	{
		if ($this->checkOrderDir($orderNumber) && unlink(_PS_ROOT_DIR_.'/../files/order_'.(int) $orderNumber.'/'.$name)) {
			if ($this->countNumberFile($orderNumber) === 0){
				if (rmdir(_PS_ROOT_DIR_.'/../files/order_'.(int) $orderNumber)) {
					return true;
				}

				return false;
			}

			return true;
		}

		return false;
	}

	private function countNumberFile($orderNumber)
	{
		$numberFile = 0;
		if ($this->checkOrderDir($orderNumber)) {
			foreach (new DirectoryIterator(_PS_ROOT_DIR_.'/../files/order_'.(int) $orderNumber) as $file) {
	    		if(!$file->isDot()) {
	    			$numberFile++;
	    		}
			}
			return $numberFile;
		}
	
		return 0;
	}

	protected function getFileOrderCustomer($orderNumber)
	{
		$files = array();
		if ($this->checkOrderDir($orderNumber)) {
			foreach (new DirectoryIterator(_PS_ROOT_DIR_.'/../files/order_'.(int) $orderNumber) as $file) {
    			if(!$file->isDot()) {
    				array_push($files, array(
						'name' => $file->getFilename(),
						'download' => $this->context->link->getModuleLink('addfileorder', 'getFile').'?nameFile='.$file->getFilename().'&id_order='.$orderNumber,
						));
    			}
			}
		}

		return $files;
	}

	private function getFileOrderAdmin($orderNumber)
	{
		$files = array();
		if ($this->checkOrderDir($orderNumber)) {
			foreach (new DirectoryIterator(_PS_ROOT_DIR_.'/../files/order_'.(int) $orderNumber) as $file) {
    			if(!$file->isDot()) {
    				array_push($files, array(
						'name' => $file->getFilename(),
						'download' => $this->context->link->getModuleLink('addfileorder', 'getFile').'?token='.$this->token.'&nameFile='.$file->getFilename().'&id_order='.$orderNumber,
						));
    			}
			}
		}

		return $files;
	}

	private function addFileGet($orderNumber)
	{
		if (file_exists(_PS_ROOT_DIR_.'/../files') === false) {
			mkdir(_PS_ROOT_DIR_.'/../files');
		}

		$numberFile = $this->countNumberFile($orderNumber);
		$upload = new Uploader();
		$upload->setAcceptTypes(array('pdf'));

		if ($this->checkOrderDir($orderNumber)) {
			$upload->setSavePath(_PS_ROOT_DIR_.'/../files/order_'.(int) $orderNumber.'/');
			$upload->upload($_FILES['file']);
		} else {
			mkdir(_PS_ROOT_DIR_.'/../files/order_'.$orderNumber);
			$upload->setSavePath(_PS_ROOT_DIR_.'/../files/order_'.(int) $orderNumber.'/');
			$upload->upload($_FILES['file']);
		}

		if ($this->countNumberFile($orderNumber) > $numberFile) {
			return true;
		}

		if ($this->countNumberFile($orderNumber) === 0) {
			rmdir(_PS_ROOT_DIR_.'/../files/order_'.(int) $orderNumber);
		}
		return false;
	}

	protected function checkOrderDir($orderNumber)
	{
		if (file_exists(_PS_ROOT_DIR_.'/../files/order_'.(int) $orderNumber) === false) {
			return false;
		}

		return true;
	}

}