<?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 GestionService {
	/** @var Bdd */
	private $gestionBdd;

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

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

    private function GetValueFromKeyInVCalendarString(string $key, string $vCalendarString): string
    {
        $value = "";
        preg_match("/$key:(.*)\r\n/", $vCalendarString, $matches);
		if (isset($matches[1])) {
			$value = trim($matches[1]);
		} 
		return $value;
    }

	private function GetCalendarSummaryFromVCalendarString(string $vCalendarString): string
	{
		$summaryValue = "Nom du défunt";
		$value = $this->GetValueFromKeyInVCalendarString("SUMMARY", $vCalendarString);
        if($value !== ""){
            $summaryValue = trim($value);
        }
        return $summaryValue;
	}

    private function GetOrCreateThanatoFromVCalendarString(string $vCalendarString)
    {
        $thanatoName = "Nom du défunt";
        $thanatoNames = $this->GetAttendeesNameFromVCalendarString($vCalendarString);
        if(count($thanatoNames) > 0){
            $thanatoName = $thanatoNames[0];
        }
        $thanatoId = $this->gestionBdd->getOrCreateThanatoIdByLastName($thanatoName);
        return $thanatoId;   
    }
    private function GetAttendeesNameFromVCalendarString(string $vCalendarString): array
    {
        $names = [];
        preg_match_all('/CN=([^;]+)/', $vCalendarString, $matches);
        if (isset($matches[1])) {
            $names = $matches[1];
        }
        return $names;
    }

    private function IsDevisAlreadyCreated($clientId,$locationId,$thanatoId,$defuntName){
        $defuntId = $this->gestionBdd->getLastDefuntIdByName($defuntName);
        $devisId = $this->gestionBdd->getLastDevisIdFromVCalendarProperty($thanatoId,$clientId,$locationId,$defuntId);
        return $devisId != null;
    }

    public function HandleCreatedCalendarObject(string $vCalendarString){ 
        $calendarSummary = $this->GetCalendarSummaryFromVCalendarString($vCalendarString);
        $clientId = $this->GetClientIdFromVCalendarString($vCalendarString);
        $locationId = $this->GetLocationIdFromVCalendarString($vCalendarString);
        $thanatoId = $this->GetOrCreateThanatoFromVCalendarString($vCalendarString);
        $devisAlreadyCreated = $this->IsDevisAlreadyCreated($clientId,$locationId,$thanatoId,$calendarSummary);
        if($devisAlreadyCreated){
            return;
        }
		$defuntId = $this->gestionBdd->insertDefuntByNameAndReturnId($calendarSummary);
        $devisId = $this->gestionBdd->insertDevisFromVCalendarAndReturnId($thanatoId,$clientId,$locationId,$defuntId);
        $articlesValue = $this->GetArticlesNameFromVCalendarString($vCalendarString);
        if(!empty($articlesValue)){
            $articlesId = $this->gestionBdd->getArticlesIdFromArticlesNameArray($articlesValue);
            $this->gestionBdd->insertDevisArticleFromDevisIdAndArticlesIdArray($devisId, $articlesId);
        }
        $this->gestionBdd->createDevisTrajetFromVCalendar($devisId);
    }

    private function GetClientIdFromVCalendarString(string $vCalendarString){
        $clientValue = $this->GetValueFromKeyInVCalendarString("CLIENT", $vCalendarString);
        $clientId = $this->gestionBdd->getLastClientIdByName(name: $clientValue) ?? 0;
        return $clientId;
    }

    private function GetLocationIdFromVCalendarString(string $vCalendarString){
        $locationValue = $this->GetValueFromKeyInVCalendarString("LOCATION", $vCalendarString);
        $locationId = $this->gestionBdd->getLastLocationIdByName($locationValue)?? 0;
        return $locationId;
    }

    private function GetThanatoIdFromVCalendarString(string $vCalendarString){
        $thanatoValue = $this->GetValueFromKeyInVCalendarString("EMBALMER", $vCalendarString);
        $thanatoId = $this->gestionBdd->getLastThanatoIdByName($thanatoValue) ?? 0;
        return $thanatoId;
    }

    private function GetArticlesNameFromVCalendarString(string $vCalendarString): array {
        $devisArticleValue = $this->GetValueFromKeyInVCalendarString("DESCRIPTION", $vCalendarString);
        $this->logger->debug('LIST OF ARTICLES',["" => $devisArticleValue]);
        $articles = explode('\;', $devisArticleValue);
        $mapped = array_map('trim', $articles);
        $this->logger->debug('LIST OF ARTICLES',$mapped);
        return $mapped;
    }
}