<?php

class Database {
    private $connection;

    public function __construct()
    {
        $this->connection = new \mysqli($_ENV['DB_HOST'], $_ENV['DB_USER'], $_ENV['DB_PASS'], $_ENV['DB_NAME']);

        if ($this->connection->connect_error) {
            die("Connection failed: " . $this->connection->connect_error);
        }
    }

    public function query($sql)
    {
        $result = $this->connection->query($sql);

        if ($result === FALSE) {
            Logger::log($this->connection->error, 'error');
            return false;
        }

        return $result;
    }

    public function prepare($sql)
    {
        $stmt = $this->connection->prepare($sql);
        if (!$stmt) {
            Logger::log("Prepare failed: " . $this->connection->error, 'error');
            return false;
        }
        return $stmt;
    }

    public function escapeString($string)
    {
        return $this->connection->real_escape_string(trim($string));
    }

    public function addUserAndGetId($input)
    {
        $query = "INSERT INTO clients (
            first_name,
            second_name,
            passport_series,
            passport_number,
            birth_date,
            client_phone
        ) VALUES (
            '{$input['firstName']}',
            '{$input['secondName']}',
            '{$input['passportSeries']}',
            '{$input['passportNumber']}',
            '{$input['birthDate']}',
            '{$input['clientPhone']}'
        )";

        if ($this->connection->query($query) === TRUE) {
            return $this->connection->insert_id;
        } else {
            Logger::log("Error: " . $query . "<br>" . $this->connection->error, 'error');
            return false;
        }
    }

    public function addConfirmationCode($user_id, $code) {
        $message_id = uniqid($user_id."_");

        $utcTimezone = new \DateTimeZone('UTC');
        $utcNow = new \DateTime('now', $utcTimezone);
        $created_at = $utcNow->format('Y-m-d H:i:s');

        $query = "INSERT INTO sended_codes (
            message_id,
            client_id,
            confirmation_code,
            confirmed,
            created_at,
            confirmed_at) VALUES (
            '$message_id',
            $user_id,
            $code,
            0,
            '$created_at',
            'NULL'
        )";

        if ($this->connection->query($query) === TRUE) {
            return $this->connection->insert_id;
        } else {
            Logger::log("Error: " . $query . "<br>" . $this->connection->error, 'error');
            return false;
        }
    }

    public function close()
    {
        $this->connection->close();
    }
}