<?php
namespace OCA\Gestion\Db;

use OCA\Gestion\Constants\OrderStatusConstant;
use OCA\Gestion\Constants\ThanatoTypeConstant;
use OCA\Gestion\Helpers\OrderHelpers;
use OCP\IDBConnection;
use \Datetime;
use OCA\Gestion\Constants\BddConstant;
use Ramsey\Uuid\Uuid;

class OrderBdd {
    private $orderTablePrefix;

    private $defaultTablePrefix;
    private IDbConnection $pdo;

    public function __construct(IDbConnection $db) {
        $this->orderTablePrefix = BddConstant::DEFAULT_TABLE_PREFIX ."gestion_";
        $this->defaultTablePrefix = BddConstant::DEFAULT_TABLE_PREFIX;
        $this->pdo = $db;
    }

    private function execSQL($sql, $conditions){
        $stmt = $this->pdo->prepare($sql);
        $stmt->execute($conditions);
        $data = $stmt->fetchAll(\PDO::FETCH_ASSOC);
        $stmt->closeCursor();
        return json_encode($data);
    }

    private function execSQLNoData($sql, $conditions){
        $stmt = $this->pdo->prepare($sql);
        $stmt->execute($conditions);
        $stmt->closeCursor();
    }

    private function execSQLNoJsonReturn($sql, $conditions){
        $stmt = $this->pdo->prepare($sql);
        $stmt->execute($conditions);
        $data = $stmt->fetchAll(\PDO::FETCH_ASSOC);
        $stmt->closeCursor();
        return $data;
    }

    private function getLastOrderNumber(){
        $sql = "SELECT max(orders.order_number) as order_last_number FROM "
                .$this->orderTablePrefix."orders as orders";

        $result = $this->execSQLNoJsonReturn($sql,[]);
        $lastNumber = 0;
        if(!empty($result)){
            $lastNumber = $result[0]["order_last_number"];
        }
        return $lastNumber;
    }

    private function insertOrderProduct(int $orderId,int $productId){
        $sql = "INSERT INTO ".$this->orderTablePrefix."order_product (fk_order_id, fk_product_id, quantity) VALUES (?,?,1)";
        $this->execSQLNoData($sql, array($orderId, $productId));
        return true;
    }

    public function getOrderByCalendarUuid($calendarUuid){
        $sql = "SELECT * FROM ".$this->orderTablePrefix."orders as orders
        WHERE orders.fk_calendar_uuid = ? LIMIT 1";

        $result = $this->execSQLNoJsonReturn($sql,[$calendarUuid]);
        if(!empty($result)){
            return $result[0];
        }
        return null;
    }

    public function insertOrderProductsByProductIds(int $orderId,array $productIds){
        if (!empty($productIds)) {
            foreach ($productIds as $productId) {
                $this->insertOrderProduct(
                    $orderId,
                    $productId
                );
            }
        }
    }

    public function insertOrderFromVCalendarPropertyAndReturnId($thanatoId,$clientId,$locationId,$defuntId,$calendarUuid,$date,$idNextCloud = BddConstant::DEFAULT_ADMIN_ID_NEXTCLOUD){
        $dateTime = new DateTime($date);
        
        $lastOrderNumber = $this->getLastOrderNumber();
        $thisOrderNumber = $lastOrderNumber + 1;
        $thisOrderFullNumber = OrderHelpers::GetFullOrderNumberByDateAndOrderNumber($dateTime,$thisOrderNumber);
        $sql = "INSERT INTO `".$this->orderTablePrefix."orders` ( 
            `order_date`,
            `order_number`,
            `order_full_number`,
            `fk_defunt_id`,
            `fk_lieu_id`,
            `fk_client_id`,
            `fk_thanato_id`,
            `fk_order_status_key`,
            `fk_calendar_uuid`,
            `id_nextcloud`
        ) 
        VALUES (?,?,?,?,?,?,?,?,?,?);";
        $this->execSQLNoData($sql, array(
                $date,
                $thisOrderNumber,
                $thisOrderFullNumber,
                $defuntId,
                $locationId,
                $clientId,
                $thanatoId,
                OrderStatusConstant::ORDERED_KEY,
                $calendarUuid,
                $idNextCloud
            )
        );

        $order = $this->getOrderByCalendarUuid($calendarUuid);
        return $order['id'];
    }

    public function updateOrderStatus($orderId,$statusKey){
        $sql= "UPDATE ".$this->orderTablePrefix."orders as orders
            SET orders.fk_order_status_key = ? 
            WHERE orders.id = ?";

        $this->execSQLNoData($sql,[$statusKey,$orderId]);
    }
    public function getOrderProductsByOrderId($orderId){
        $sql = "SELECT 
            order_product.id as order_product_id,
            produit.id as produit_id, 
            produit.reference as produit_reference, 
            produit.description as produit_description
            FROM ".$this->orderTablePrefix."order_product as order_product
            LEFT JOIN ".$this->orderTablePrefix."produit as produit on order_product.fk_product_id = produit.id
            WHERE order_product.fk_order_id = ?;";
        $produitsList = $this->execSQLNoJsonReturn(
            $sql, 
            [$orderId]);

        $finalProduitList = [];
        foreach($produitsList as $produit){
            if($produit['produit_id'] != null){
                $finalProduitList[] = $produit;
            }
        }
        return $finalProduitList;
    }

    public function getOrdersWithDetails(){
        $sql = "SELECT 
            orders.id,
            orders.order_date,
            orders.order_number,
            orders.order_full_number,
            orders.order_comment,
            orders.fk_defunt_id,
            orders.fk_lieu_id,
            orders.fk_client_id,
            orders.fk_thanato_id,
            orders.fk_order_status_key,
            thanato.id as thanato_id,
            thanato.nom as thanato_nom,
            thanato.prenom as thanato_prenom,
            client.id as client_id,
            client.nom as client_nom,
            client.prenom as client_prenom,
            client.entreprise as client_entreprise,
            defunt.id as defunt_id,
            defunt.nom as defunt_nom,
            lieu.id as lieu_id,
            lieu.adresse as lieu_adresse,
            lieu.nom as lieu_nom,
            order_status.status_label as order_status_label
        FROM "
            .$this->orderTablePrefix."orders as orders
            LEFT JOIN ".$this->orderTablePrefix."thanato as thanato on orders.fk_thanato_id = thanato.id
            LEFT JOIN ".$this->orderTablePrefix."client as client on orders.fk_client_id = client.id
            LEFT JOIN ".$this->orderTablePrefix."defunt as defunt on orders.fk_defunt_id = defunt.id
            LEFT JOIN ".$this->orderTablePrefix."lieu as lieu on orders.fk_lieu_id = lieu.id
            LEFT JOIN ".$this->orderTablePrefix."order_status as order_status on orders.fk_order_status_key = order_status.status_key
        "
        ;

        return $this->execSQLNoJsonReturn($sql,[]);
    }
}