<?php
class Repository_User {
    public function Login($Username, $Password) {
        global $DB;

        $Username = $DB->safe_string($Username);
        $Password = $DB->safe_string($Password);

        $DB->query("SELECT ID, Username, Email, Password FROM users WHERE Username = '{$Username}'");
        $User = new User($DB->next_record());

        if(password_verify($Password, $User->Password)) {
            $_SESSION['User'] = serialize($User);
            return true;
        } else return "Invalid Username / Password";
    }

    public function Register($Params) {
        global $DB;
        $Keys = array();
        $Values = array();

        $Params['Password'] = $Password_Hash = password_hash($Params['Password'], PASSWORD_BCRYPT);
        foreach($Params as $Key => $Value) {
            $Keys[] = $Key;
            $Values[] = $DB->safe_string($Value);
        }

        $Key = implode(", ", $Keys);
        $Value = implode("', '", $Values);

        $DB->query("INSERT INTO users ({$Key}) VALUES('{$Value}')");
    }
}