<?php

namespace Model;

use Core\Db;

class EkrExchangeRates
{
    /**
     * @var array|false
     */
    private $today;

    public function __construct()
    {
        $this->today = Db::getRow('select RUB, USD, from_unixtime(id, ?) as date from ekr_exchange_rates order by id desc limit 1', ['%d.%m.%Y']);
        if (empty($this->today)) {
            $this->today = ['RUB' => 0, 'USD' => 0, 'date' => '00.00.0000'];
        }
    }

    public function oneEkrInUSD(): float
    {
        return round($this->today['RUB'] / $this->today['USD'], 2);
    }

    public function oneEkrInRUB(): float
    {
        return $this->today['RUB'];
    }

    public function date(): string
    {
        return $this->today['date'];
    }
}