<?php

namespace App\Jobs;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Storage;
use App\Helpers\NumberFormatter;

class FetchCurrencyRates implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public function handle()
    {
        $data = [];
        $data['Update_Date'] = now()->format('Y-m-d H:i:s');

        // Döviz kurları - ana kaynak
        $response = $this->fetchData('https://kur.doviz.com');

        // DOM işlemleri için veri çekme
        $dom = new \DOMDocument();
        @$dom->loadHTML($response->body());
        $xpath = new \DOMXPath($dom);

        // Döviz kurlarını çekme
        $elements = $xpath->query("//*[@data-socket-key]");
        foreach ($elements as $element) {
            $name = $element->getAttribute('data-socket-key');
            $type = $element->getAttribute('data-socket-attr');
            $value = NumberFormatter::commaToDot($element->nodeValue);

            if (trim($name) !== '') {
                if ($name == "JPY") $value = $value / 100;
                if (strlen($name) === 3) {
                    // Para birimi ismini bul
                    $nameElement = $xpath->query(".//div[@class='cname']", $element->parentNode);
                    if ($nameElement->length > 0) {
                        $data[$name]['Name'] = trim($nameElement->item(0)->nodeValue);
                    }

                    if ($type == "bid") $data[$name]['Buying'] = (float)$value;
                    if ($type == "ask") $data[$name]['Selling'] = (float)$value;
                    if ($type == "c") $data[$name]['Change'] = round((float)$value, 2);
                    
                    $data[$name]['Type'] = "Currency";
                }
            }
        }

        // Eğer USD verisi yoksa veya boşsa, TCMB'den veri çek
        if (!isset($data['USD']) || empty($data['USD']['Buying'])) {
            \Log::info('USD verisi bulunamadı, TCMB\'den veri çekiliyor...');
            $tcmbData = $this->fetchFromTCMB();
            if (!empty($tcmbData)) {
                \Log::info('TCMB\'den ' . count($tcmbData) . ' kur alındı');
                $data = array_merge($data, $tcmbData);
            } else {
                \Log::error('TCMB\'den veri alınamadı');
            }
        }

        // AZN kuru için
        $aznResponse = $this->fetchData('https://wise.com/tr/currency-converter/azn-to-try-rate?amount=1');
        preg_match('/(\d+\.\d+)\s+TRY/', $aznResponse->body(), $matches);
        if (isset($matches[1])) {
            $data['AZN'] = [
                'Name' => 'AZERBAYCAN YENİ MANATI',
                'Buying' => NumberFormatter::commaToDot($matches[1]),
                'Selling' => NumberFormatter::commaToDot($matches[1]),
                'Change' => "0.00",
                'Type' => "Currency"
            ];
        }

        // JSON dosyasını kaydet
        Storage::put('currency/today.json', json_encode($data, JSON_UNESCAPED_UNICODE));
        
        return $data;
    }

    private function fetchData($url)
    {
        return Http::withHeaders([
            'User-Agent' => 'Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10',
            'Accept-Language' => 'en'
        ])->get($url);
    }

    private function fetchFromTCMB()
    {
        try {
            $response = $this->fetchData('https://www.tcmb.gov.tr/kurlar/today.xml');
            
            if (!$response->successful()) {
                return [];
            }

            $xml = simplexml_load_string($response->body());
            if (!$xml) {
                return [];
            }

            $data = [];
            
            // Currency mapping - TCMB'deki isimleri kod olarak kullan
            $currencyMap = [
                'USD' => 'US DOLLAR',
                'EUR' => 'EURO', 
                'GBP' => 'POUND STERLING',
                'CHF' => 'SWISS FRANK',
                'JPY' => 'JAPENESE YEN',
                'CAD' => 'CANADIAN DOLLAR',
                'AUD' => 'AUSTRALIAN DOLLAR',
                'SEK' => 'SWEDISH KRONA',
                'NOK' => 'NORWEGIAN KRONE',
                'DKK' => 'DANISH KRONE',
                'RUB' => 'RUSSIAN ROUBLE',
                'CNY' => 'CHINESE RENMINBI',
                'SAR' => 'SAUDI RIYAL',
                'KWD' => 'KUWAITI DINAR',
                'QAR' => 'QATARI RIAL',
                'AED' => 'UNITED ARAB EMIRATES DIRHAM',
                'PKR' => 'PAKISTANI RUPEE',
                'KRW' => 'SOUTH KOREAN WON',
                'AZN' => 'AZERBAIJANI NEW MANAT',
                'BGN' => 'BULGARIAN LEV',
                'RON' => 'NEW LEU'
            ];

            foreach ($xml->Currency as $currency) {
                $code = (string)$currency['CurrencyCode'];
                $unit = (float)$currency->Unit;
                $name = (string)$currency->CurrencyName;
                $buying = (float)$currency->BanknoteBuying;
                $selling = (float)$currency->BanknoteSelling;
                $forexBuying = (float)$currency->ForexBuying;
                $forexSelling = (float)$currency->ForexSelling;

                // Birim düzeltmesi (100 yen = 1 birim gibi)
                if ($unit > 1) {
                    $buying = $buying / $unit;
                    $selling = $selling / $unit;
                    $forexBuying = $forexBuying / $unit;
                    $forexSelling = $forexSelling / $unit;
                }

                // Forex kurları varsa onları kullan, yoksa banknot kurlarını kullan
                $finalBuying = $forexBuying > 0 ? $forexBuying : $buying;
                $finalSelling = $forexSelling > 0 ? $forexSelling : $selling;

                if ($finalBuying > 0 && $finalSelling > 0) {
                    $data[$code] = [
                        'Name' => $name,
                        'Buying' => round($finalBuying, 4),
                        'Selling' => round($finalSelling, 4),
                        'Change' => 0.00,
                        'Type' => 'Currency'
                    ];
                }
            }

            return $data;
            
        } catch (\Exception $e) {
            return [];
        }
    }
}