<?php

namespace App\Services;

use App\Models\ParseLogging;
use App\Models\Site;
use Illuminate\Support\Str;
use PHPHtmlParser\Dom;
use PHPHtmlParser\Dom\HtmlNode;

class MacParser
{
    private $usdCurrency;
    private $domParser;

    public function __construct(Dom $dom)
    {
        $this->domParser   = $dom;
        $this->usdCurrency = $this->getUsd();
    }

    /**
     * @throws \PHPHtmlParser\Exceptions\ChildNotFoundException
     * @throws \PHPHtmlParser\Exceptions\CircularException
     * @throws \PHPHtmlParser\Exceptions\CurlException
     * @throws \PHPHtmlParser\Exceptions\NotLoadedException
     * @throws \PHPHtmlParser\Exceptions\StrictException
     */
    public function parse(): void
    {
        $this->log();

        Site::all()->map(function (Site $site) {
            $this->domParser = new Dom;

            $this->domParser->loadFromUrl($site->parse_url);

            /** @var  HtmlNode $price */
            $price = $this->domParser->find($site->parse_dom_path)[0];

            $price = $this->getPrice($site, $this->clearPrice($price->text(true)));

            $site->states()->create(compact('price'));
        });
    }

    private function getPrice(Site $site, string $priceText): int
    {
        $priceText = (int)Str::substr($priceText, 0, $site->isUAHPrice() ? 5 : 4);

        return $site->isUAHPrice() ? $priceText : round($priceText * $this->usdCurrency);
    }

    private function clearPrice(string $price): string
    {
        return preg_replace('/[^0-9]/', '', $price);
    }

    /**
     * @throws \PHPHtmlParser\Exceptions\ChildNotFoundException
     * @throws \PHPHtmlParser\Exceptions\CircularException
     * @throws \PHPHtmlParser\Exceptions\CurlException
     * @throws \PHPHtmlParser\Exceptions\NotLoadedException
     * @throws \PHPHtmlParser\Exceptions\StrictException
     */
    private function getUsd(): float
    {
        $this->domParser->loadFromUrl('https://privatbank.ua/ru');

        /** @var  HtmlNode $price */
        $currency = $this->domParser->find('#USD_sell')[0];

        return trim($currency->text());
    }

    private function log(): void
    {
        ParseLogging::create();

        info(__METHOD__);
    }
}