<?php

namespace App\Yr\Forecast\Tabular\Time;

class Symbol implements DiffInterface {

    private $number;
    private $numberEx;
    private $name;
    private $var;

    public function __construct(\SimpleXMLElement $xml) {
        $this->number = (int)$xml['number'];
        $this->numberEx = (int)$xml['numberEx'];
        $this->name = (string)$xml['name'];
        $this->var = (string)$xml['var'];
    }

    public function getNumber(): int {
        return $this->number;
    }

    public function getName(): string {
        return $this->name;
    }

    public function getVar(): string {
        return $this->var;
    }

    public function diff(DiffInterface $s): bool {
        if ($s instanceof Symbol)
            return $this->number != $s->getNumber();

        return false;
    }

    public function __toString(): string {
        return sprintf(
            "%s (%d, %d, %s)", $this->name,
            $this->number, $this->numberEx,
            $this->var
        );
    }
}