<?php
include_once dirname(__FILE__).'/../../cmsps.php';

class AdminCmsPsExportController extends ModuleAdminController {

	public function __construct() {
		$this->display = 'view';
		$this->bootstrap = true;
		
		parent::__construct();
	}

	public function initContent(){
		parent::initContent();
        if (Tools::getValue('exportByCat')) {

        	$items = $this->getCatNewsletterSubscriber(Tools::getValue('id_category'), $this->context->shop->id);
	        $filename = 'category_suscribers_'.date('Y-m-d_His').'.csv';

	        header('Content-Type: application/force-download; charset=UTF-8');
	        header('Content-disposition: attachment; filename="'.$filename.'"');
	        
	        $this->exportCsv($items, $filename);
	        die();

        } elseif (Tools::getValue('exportByShop')) {

        	$items = $this->getCatNewsletterSubscriber(9999, $this->context->shop->id);
	        $filename = 'shop_suscribers_'.date('Y-m-d_His').'.csv';

	        header('Content-Type: application/force-download; charset=UTF-8');
	        header('Content-disposition: attachment; filename="'.$filename.'"');
	        
	        $this->exportCsv($items, $filename);
	        die();

        } elseif (Tools::getValue('exportAll')) {

        	$items = $this->getAllSubscribers($this->context->shop->id);
	        $filename = 'all_suscribers_'.date('Y-m-d_His').'.csv';

	        header('Content-Type: application/force-download; charset=UTF-8');
	        header('Content-disposition: attachment; filename="'.$filename.'"');
	        
	        $this->exportCsv($items, $filename);
	        die();
        	
        }
	}

	public function renderView() {
		$pathTemplate = dirname(dirname(__DIR__)).'/views/templates/admin';

		$exportByCat =  array(
			'submit' => $this->l('Exporter'),
			);
		$exportByShop =  array(
			'submit' => $this->l('Exporter'),
			);
		$exportAll =  array(
			'submit' => $this->l('Exporter tous les inscrits'),
			);
		$categories = $this->getNewsletterCategories($this->context->language->id, $this->context->shop->id);
		$this->context->smarty->assign(array(
			'exportByCat'=> $exportByCat,
			'exportByShop'=> $exportByShop,
			'exportAll'=> $exportAll,
			'categories' => $categories,
		));

		return $this->context->smarty->fetch($pathTemplate.'/cmsExport.tpl');
	}

	public function getNewsletterCategories($id_lang, $id_shop){
		$sql = 'SELECT DISTINCT c.`id_category`, cl.`title`
				FROM '._DB_PREFIX_.'cmsps_categories c
				LEFT JOIN '._DB_PREFIX_.'cmsps_categories_lang cl ON (cl.`id_category` = c.`id_category`)
				LEFT JOIN '._DB_PREFIX_.'newsletter_cmsps nc ON (nc.`id_category` = c.`id_category`)
				WHERE nc.`id_category` IS NOT NULL AND cl.`id_lang`='.(int)$id_lang;
		return Db::getInstance()->executeS($sql);

	}

    public function getAllSubscribers($id_shop)
    {
        $sqlCustomer =  'SELECT c.`email`, ("oui") as is_customer
                        FROM '._DB_PREFIX_.'customer c
                        WHERE c.`newsletter` = 1
                        AND c.`id_shop` = '.(int)$id_shop;

        $sqlGuest = 'SELECT n.`email`, ("non") as is_customer
                    FROM '._DB_PREFIX_.'newsletter n
                    WHERE n.`id_shop` = '.(int)$id_shop;

        return Db::getInstance()->ExecuteS('('.$sqlCustomer.') UNION ('.$sqlGuest.')');
    }

    public function getCatNewsletterSubscriber($id_category, $id_shop)
    {
        $sqlCustomer =  'SELECT c.`email`, ("oui") as is_customer
                        FROM '._DB_PREFIX_.'customer c
                        LEFT JOIN '._DB_PREFIX_.'newsletter_cmsps nc ON (nc.`id_customer` = c.`id_customer`)
                        WHERE nc.`id_category` = '.(int)$id_category.'
                        AND c.`newsletter` = 1
                        AND nc.`id_customer` IS NOT NULL
                        AND c.`id_shop` = '.(int)$id_shop;

        $sqlGuest = 'SELECT n.`email`, ("non") as is_customer
                    FROM '._DB_PREFIX_.'newsletter n
                    LEFT JOIN '._DB_PREFIX_.'newsletter_cmsps nc ON (nc.`id_newsletter` = n.`id`)
                    WHERE nc.`id_category` = '.(int)$id_category.'
                    AND nc.`id_newsletter` IS NOT NULL
                    AND n.`id_shop` = '.(int)$id_shop;

        return Db::getInstance()->ExecuteS('('.$sqlCustomer.') UNION ('.$sqlGuest.')');
    }

    public function exportCsv($items, $filename)
    {
        $row_definition =  array(
          'email' => 'email',
          'is_customer' => 'is_customer'
        );
        //open file pointer to standard output
        $fp = fopen("php://output", 'w+');
        $delim = ';';

        // first row
        $data = array();
        foreach ($row_definition as $col => $index) {
            $data[] = $col;
        }
        fputcsv ($fp,$data,$delim);

        foreach ($items as $item) {
            $data = array();
            foreach ($row_definition as $index) {
                $data[] = (isset($item[$index]) ? $item[$index] : '');                
            }
            fputcsv ($fp,array_map('utf8_decode',array_values($data)),$delim);
        }

        fclose($fp);
    }

}