<?php

declare(strict_types=1);
/**
 * Calendar App
 *
 * @copyright 2021 Anna Larch <anna.larch@gmx.net>
 *
 * @author Anna Larch <anna.larch@gmx.net>
 * @author Richard Steinmetz <richard@steinmetz.cloud>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
 *
 * You should have received a copy of the GNU Affero General Public
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\Gestion\Service;

use OCA\Gestion\Db\Bdd;
use Psr\Log\LoggerInterface;

class ExportClientStatisticService {
	/** @var Bdd */
	private $gestionBdd;

	/** @var LoggerInterface */
	private $logger;

	public function __construct(
		Bdd $gestionBdd,
		LoggerInterface $logger) {
		$this->logger = $logger;
		$this->gestionBdd = $gestionBdd;
	}

    public function getFileName(array $clientIds){
        $filename = "";
        $clients = $this->gestionBdd->getClientsByClientsID($clientIds);
        foreach($clients as $client){
            $filename .= $client['client_nom'] . '-' . $client['client_entreprise'] . '--';
        }
        $filename = rtrim($filename, '-');
        return $filename;
    }

    public function getExportClientFileHeader(): string{
		$fileHeader = 
		'Client'.';'.
        'Mois'.';'.
        'Année'.';'.
		'Nb defunts'.';'.
		'Nb articles'.';'.
		'Total HT'.';'.
		"\n";
		return $fileHeader;
	}

    public function populateExportDataIntoFileContent(array $exportData,string $fileContent): string{
		foreach($exportData as $clientId => $clientData){
			$clientName = $clientData["client_name"];
			$clientStatPerMonth = $clientData["client_data"];
			$totalPrice = 0;
			if(!empty($clientStatPerMonth)){
				foreach($clientStatPerMonth as $month => $stat){
					$stat["client_name"] = $clientName;
					$totalPrice+=$stat["total_price"];
					$fileContent = $this->populateClientStatDataIntoFileContent($fileContent,$month,$stat);
				}
				$fileContent = $this->populateTotalPriceIntoFileContent($fileContent,$totalPrice);
			}
		}
		return $fileContent;
	}

	private function populateTotalPriceIntoFileContent(string $fileContent,$price){
		$fileContent = $fileContent.
		''.';'.
		''.';'.
		''.';'.
		''.';'.
		''.';'.
		utf8_decode(html_entity_decode("$price"))."\n";
		return $fileContent;
	}

	private function populateClientStatDataIntoFileContent(string $fileContent,$month,array $statPerMonth){
		$yearValue = $statPerMonth["year"];
		$defuntCount = $statPerMonth["defunt_count"];
		$productCount = $statPerMonth["produit_count"];
		$totalPrice = $statPerMonth["total_price"];
		
		$fileContent = $fileContent.
					utf8_decode(html_entity_decode($statPerMonth['client_name'])).';'.
					utf8_decode(html_entity_decode("$month")).';'.
					utf8_decode(html_entity_decode("$yearValue")).';'.
					utf8_decode(html_entity_decode("$defuntCount")).';'.
					utf8_decode(html_entity_decode("$productCount")).';'.
					utf8_decode(html_entity_decode("$totalPrice")).';'."\n";
		
		return $fileContent;

	}
}