<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use GuzzleHttp\Client as GuzzleClient;
use GuzzleHttp\Promise as GuzzlePromise;

use App\Models\CountryCode;

function parseJson($json_raw)
{
    $json_values = array();

    $json_decoded = json_decode($json_raw, true);

    $searchResultPage = $json_decoded["searchResultPage"];
    $products = $searchResultPage["products"];
    $main = $products["main"];
    $items = $main["items"];

    foreach ($items as $item) {
        $product = $item["product"];

        $salesPrice = $product["salesPrice"];
        $numeral = $salesPrice["numeral"];

        $json_values = array(
            'url_product' => $product['pipUrl'],
            'tag' => $product['tag'],
            'price' => $numeral,
            'price_eur' => 0
        );

        break;
    }

    return $json_values;
}

function parseJson_TR($body)
{
    //echo "country: " . $country . ", code: " . $code . "<br>";

    $dochtml = new \DOMDocument();
    $dochtml->loadHTML($body);

    $xpath = new \DOMXpath($dochtml);
    $price = null;
    //$c = ltrim($code, "0");
    $json_values = array();

    $url_product = $xpath->query('/html/head/meta[(@property="og:url")]/@content')[0]->nodeValue;
    $price = $xpath->query('/html/head/meta[(@property="og:price:amount")]/@content')[0]->nodeValue;

    $price = floatval(trim(str_replace('.', '', $price)));

    $json_values = array(
        'url_product' => $url_product,
        'tag' => null,
        'price' => floatval($price),
        'price_eur' => 0
    );

    return $json_values;
}

function parseJson_CY_GR_BG($code, $body)
{
    //echo "country: " . $country . ", code: " . $code . "<br>";

    $dochtml = new \DOMDocument();
    $dochtml->loadHTML($body);

    $xpath = new \DOMXpath($dochtml);
    $price = null;
    $c = ltrim($code, "0");
    $json_values = array();

    $price = $xpath->query('//*/div[(@class="yotpo yotpo-main-widget" and @data-product-id="' . $code . '")]/@data-price')[0]->nodeValue;
    $url_product = $xpath->query('//*/div[(@class="yotpo yotpo-main-widget" and @data-product-id="' . $code . '")]/@data-url')[0]->nodeValue;

    $price = floatval($price);


    $json_values = array(
        'url_product' => $url_product,
        'tag' => null,
        'price' => floatval($price),
        'price_eur' => 0
    );

    return $json_values;
}

function parseJson_EE_LT_LV($country, $code, $body)
{
    //echo "country: " . $country . ", code: " . $code . "<br>";

    $dochtml = new \DOMDocument();
    $dochtml->loadHTML($body);

    $xpath = new \DOMXpath($dochtml);
    $price = null;
    $c = ltrim($code, "0");
    $json_values = array();

    $price = $xpath->query('//*/div[(@class="itemPriceBox" and @data-item="' . $c . '")]//p[@class="itemNormalPrice display-6"]/span')[0]->nodeValue;

    if (is_null($price) || empty($price)) {
        $price = $xpath->query('//*/div[(@class="itemPriceBox" and @data-item="' . $c . '")]//div[@class="itemBTI display-6"]/span')[0]->nodeValue;
    }

    switch ($country) {
        case "Estonia":
            $url_product = "https://www.ikea.ee" . $xpath->query('//*/div[(@class="card-header")]/a/@href')[0]->nodeValue;
            break;
        case "Lithuania":
            $url_product = "https://www.ikea.lt" . $xpath->query('//*/div[(@class="card-header")]/a/@href')[0]->nodeValue;
            break;
        case "Latvia":
            $url_product = "https://www.ikea.lv" . $xpath->query('//*/div[(@class="card-header")]/a/@href')[0]->nodeValue;
            break;
        default:
            $url_product = null;
    }

    if (is_null($price) || empty($price)) {
        $url_product = null;
    }

    $price = floatval(trim(str_replace(' ', '', str_replace(',', '.', str_replace(array('€'), '', $price)))));

    $json_values = array(
        'url_product' => $url_product,
        //$url_product,
        'tag' => null,
        'price' => $price,
        'price_eur' => 0
    );

    return $json_values;
}

function parseJson_IS($country, $code, $body)
{
    //echo "country: " . $country . ", code: " . $code . "<br>";

    $dochtml = new \DOMDocument();
    $dochtml->loadHTML($body);

    $xpath = new \DOMXpath($dochtml);
    $price = null;
    $c = ltrim($code, "0");
    $json_values = array();

    $price = $xpath->query('//*/div[(@class="itemPriceBox")]//p[@class="itemNormalPrice revamp_price price"]/span/span')[0]->nodeValue;

    if (is_null($price) || empty($price)) {
        $price = $xpath->query('//*/div[(@class="itemPriceBox")]//p[@class="itemBTI display-6 revamp_price price"]/span/span')[0]->nodeValue;
    }

    $url_product = "https://www.ikea.is" . $xpath->query('/html/head/meta[(@property="og:url")]/@content')[0]->nodeValue;

    //echo "url_product: " . $url_product . "<br>";

    if (is_null($price) || empty($price)) {
        $url_product = null;
    }

    $price = floatval(trim(str_replace(' ', '', str_replace(',', '.', str_replace('.', '', str_replace(array('€'), '', $price))))));

    $json_values = array(
        'url_product' => $url_product,
        //$url_product,
        'tag' => null,
        'price' => $price,
        'price_eur' => 0
    );

    return $json_values;
}

class OnlineCompareController extends Controller
{
    private $countries = [];
    public function __construct()
  {
    $countries = [];
    CountryCode::all()->each(function ($country) use (&$countries) {
      $countries[] = $country->country_name;
    });

    $this->countries = collect($countries);
  }
    public function compare()
    {
        // $codes = $request->input("codes");
        // $countries = $request->input("countries");
        // $currency = $request->input("currency");
        $codes = ['00102452',];
        $countries = ['Austria', 'Belgium'];
        $ta_codes = $codes;
        $exch_rates = "EUR";

        $item = array();
        $codes = array();

        // krajiny ktore som pridal do zoznamu z DB
        $added_countries[] = null;

        // loop cez jednotlive code z textarea a pridanie url
        /* ******************************************************************** */
        foreach ($ta_codes as $code) {
            unset($item);

            if (!is_numeric($code) || strlen($code) < 6) {
                continue;
            }

            foreach ($countries as $country) {

                if (!in_array($country['country_name'], $added_countries)) {

                    $item[] = array(
                        'country_name' => $country['country_name'],
                        'url_call' => $country['search_url'] . $code,
                        'price' => 0,
                        'url_product' => null,
                        'tag' => null
                    );
                }
            }

            $codes[] = array(
                'code' => $code,
                'item' => $item
            );
        }
        //echo var_dump($codes);

        /* ******************************************************************** */


        // paralelene prevolanie URL
        /* ******************************************************************** */
        $client = new GuzzleClient(['timeout' => 12.0]);

        $promises[] = null;
        $prices[] = null;

        foreach ($codes as $x => $code) {
            //echo "CODE: " . $code_value['code'] . "<BR>";

            unset($promises);
            unset($responses);
            unset($prices);

            // naplnenie pola promises URL
            foreach ($code['item'] as $i => $i_value) {
                if (!is_null($i_value['url_call'])) {
                    $promises[$i_value['country_name']] = $client->getAsync($i_value['url_call']);
                }
            }

            $responses = GuzzlePromise\settle($promises)->wait();

            foreach ($responses as $country => $response) {

                if ($response['state'] === 'fulfilled') {
                    $response_value = $response['value'];

                    if ($response_value->getStatusCode() == 200) {

                        switch ($country) {
                            case "Bulgaria":
                            case "Cyprus":
                            case "Greece":
                                $prices[$country] = parseJson_CY_GR_BG($code['code'], (string) $response_value->body());
                                break;
                            case "Iceland":
                                $prices[$country] = parseJson_IS($country, $code['code'], (string) $response_value->body());
                                break;
                            case "Turkey":
                                $prices[$country] = parseJson_TR((string) $response_value->body());
                                break;
                            case "Lithuania":
                            case "Estonia":
                            case "Latvia":
                                $prices[$country] = parseJson_EE_LT_LV($country, $code['code'], (string) $response_value->body());
                                break;
                            default:
                                $prices[$country] = parseJson((string) $response_value->body());
                        }
                    }
                }
            }
            /* {"products":{"Illuminate\\Database\\Eloquent\\Collection":[{"country":"AT","code":"00222671","url":"https://www.ikea.com/at
/de/p/vardoe-bettkasten-weiss-00222671/","name":"VARDÖ","typeName":"Bettkasten","mainImageUrl":"https://www.ikea.com/at/de/images/products/vardoe-bettkasten-weiss__0636
223_pe697736_s5.jpg","itemNoGlobal":"00222671","salesPrice":"34.99","tag":"NONE","last_mod":"2024-01-04 15:41:48","mainImageAlt":"VARDÖ Bettkasten, weiß, 65x70 cm","pri
ceUnit":null,"countryName":"Austria"} */

            // zistenu cenu doplnim do kolekcie
            foreach ($code['item'] as $i => $i_value) {
                asort($codes[$x]['item']); // zotriedenie
                $codes[$x]['item'][$i]['salesPrice'] = $prices[$i_value['country_name']]['price'] ?? 0;


                if ($prices[$i_value['country_name']]['tag'] == 'NONE') {
                    $codes[$x]['item'][$i]['tag'] = "";
                } else {
                    $codes[$x]['item'][$i]['tag'] = $prices[$i_value['country_name']]['tag'];
                }

                $codes[$x]['item'][$i]['url'] = $prices[$i_value['country_name']]['url_product'];
            }
        }
        /* ******************************************************************** */


        // vypis do tabulky
        /* ******************************************************************** */
        return $codes;
    }
}