<?php
namespace gateway;

use PDO;
use PDOException;
use Exception;
use model\VocabularyList;

class VocabularyListGateway extends AbsGateway
{
    public function add(array $parameters): int
    {
        try {
            $query = "INSERT INTO VocabularyList VALUES(NULL, :name,:img,:aut)";
            $args = array(':name'=>array($parameters[0], PDO::PARAM_STR),
                ':img'=>array($parameters[1], PDO::PARAM_STR),
                ':aut'=>array($parameters[2], PDO::PARAM_INT));
            $this->con->ExecuteQuery($query, $args);
            return $this->con->lastInsertId();
        } catch (PDOException $e) {
            throw new Exception('problème pour ajouter une liste de vocabulaire');
        }
    }

    public function remove(int $id): void
    {
        try {

            $query = "DELETE FROM Translate WHERE listVoc=:id";
            $args = array(':id'=>array($id, PDO::PARAM_INT));
            $this->con->ExecuteQuery($query, $args);

            $query = "DELETE FROM Practice WHERE vocabID=:id";
            $args = array(':id'=>array($id, PDO::PARAM_INT));
            $this->con->ExecuteQuery($query, $args);

            $query = "DELETE FROM VocabularyList WHERE id=:id ";
            $args = array(':id'=>array($id, PDO::PARAM_INT));
            $this->con->ExecuteQuery($query, $args);
        } catch (PDOException $e) {
            throw new Exception('problème pour supprimer les vocabulaires avec leur Id'. $e->getMessage());
        }
    }

    public function findAll(): array
    {
        try {
            $query = "SELECT * FROM VocabularyList";
            $this->con->ExecuteQuery($query);

            $res = $this->con->getResults();
            $tabVocab=[];

            foreach ($res as $r) {
                $tabVocab[]=new VocabularyList($r['id'], $r['name'], $r['image'], $r['userID']);
            }

            return $tabVocab;
        } catch (PDOException $e) {
            throw new Exception('problème pour affichage de tous les vocabulaires');
        }
    }

    public function findById(int $id) : ?VocabularyList
    {
        try{
            $query = "SELECT * FROM VocabularyList WHERE id = :id";
            $args = array(':id' => array($id, PDO::PARAM_INT));
            $this->con->executeQuery($query, $args);
            $results = $this->con->getResults();

            if (empty($results)) {
                return null;
            }

            return new VocabularyList($results[0]['id'],
                $results[0]['name'],
                $results[0]['image'],
                $results[0]['userID']);
        }
        catch (PDOException $e) {
            throw new Exception($e->getMessage());
        }
    }

    public function findByName(String $name): array
    {
        try {

            $query = "SELECT * FROM VocabularyList v WHERE v.name = :name";
            $args = array(':name'=>array($name, PDO::PARAM_STR));
            $this->con->ExecuteQuery($query, $args);

            $res = $this->con->getResults();
            $tabVocab=[];

            foreach ($res as $r) {
                $tabVocab[]=new VocabularyList($r['id'], $r['name'], $r['image'], $r['userID']);
            }

            return $tabVocab;
        } catch (PDOException $e) {
            throw new Exception('problème pour affichage d\'vocabulaire en fonction de son nom');
        }

    }

    public function modifVocabListById(int $id, String $name,String $img,String $aut):void
    {
        try {
            $query = "UPDATE VocabularyList SET name=:name, image=:img, userID=:aut WHERE id=:id";
            $args = array(':id'=>array($id, PDO::PARAM_INT),
                ':name'=>array($name, PDO::PARAM_STR),
                ':img'=>array($img, PDO::PARAM_STR),
                ':aut'=>array($aut, PDO::PARAM_INT));
            $this->con->ExecuteQuery($query, $args);
        } catch (PDOException $e) {
            throw new Exception('problème pour modifier les vocabulaires');
        }
    }

    public function findByGroup(int $id): array
    {
        try {
            $query = "SELECT v.* FROM VocabularyList v, Practice p WHERE v.id=p.vocabID AND p.groupID=:id";
            $args = array(':id' => array($id, PDO::PARAM_INT));
            $this->con->executeQuery($query, $args);
            $results = $this->con->getResults();
            $tab = array();

            foreach ($results as $row) {
                $tab[] = new VocabularyList($row['id'], $row['name'], $row['image'], $row['userID']);
            }

            return $tab;
        } catch (PDOException $e) {
            throw new Exception($e->getMessage());
        }
    }

    public function findByUser(int $id): array
    {
        try {
            $query = "SELECT * FROM VocabularyList WHERE userID=:id";
            $args = array(':id' => array($id, PDO::PARAM_INT));
            $this->con->executeQuery($query, $args);
            $results = $this->con->getResults();
            $tab = array();

            foreach ($results as $row) {
                $tab[] = new VocabularyList($row['id'], $row['name'], $row['image'], $row['userID']);
            }

            return $tab;
        } catch (PDOException $e) {
            throw new Exception($e->getMessage());
        }
    }
}