<?php

namespace app\core;

abstract class DbModel extends Model{
    abstract public function tableName(): string;

    abstract public function attributes(): array;

    abstract public function primaryKey(): string;

    public function save(){
        $tableName = $this->tableName();
        $attributes = $this->attributes();
        $params = array_map(fn($attr) => ":$attr", $attributes);

        $statement = self::prepare("INSERT INTO $tableName ("
                .implode(',', $attributes)
                .") VALUES ("
                .implode(',', $params)
                .")"
            );

        foreach($attributes as $attribute){
            $statement->bindValue(":$attribute", $this->{$attribute});
        }

        $statement->execute();
        return true;
    }

    public static function prepare($sql){
        return Application::$app->db->pdo->prepare($sql);
    }

    public function findOne($where){
        $tableName = static::tableName();
        $attributes = array_keys($where);

        $sql = implode("AND ", array_map(fn($attr) => "$attr = :$attr", $attributes));
        $statement = self::prepare("SELECT * from $tableName WHERE $sql");

        foreach($where as $key => $item){
            $statement->bindValue(":$key", $item);
        }

        $statement->execute();

        return $statement->fetchObject(static::class);
    }
}