<?php

namespace App\Http\Controllers;

use App\Jobs\FetchCurrencyRates;
use App\Jobs\FetchGoldRates;
use App\Jobs\MergeCurrencyAndGoldRates;
use Illuminate\Support\Facades\Storage;

/**
 * Class CurrencyController
 * 
 * This controller handles the fetching and returning of currency and gold rates.
 */
class CurrencyController extends Controller
{
    /**
     * Dispatches all jobs to fetch currency and gold rates synchronously.
     * 
     * @return \Illuminate\Http\JsonResponse
     */
    public function runAllFetchs()
    {
        try {
            FetchCurrencyRates::dispatchSync();
            FetchGoldRates::dispatchSync();
            MergeCurrencyAndGoldRates::dispatchSync();

            return response()->json([
                'status' => 'success',
                'message' => 'All currency and gold rates have been successfully updated'
            ]);
        } catch (\Exception $e) {
            return response()->json([
                'status' => 'error',
                'message' => 'An error occurred while updating rates: ' . $e->getMessage()
            ], 500);
        }
    }

    /**
     * Retrieves all gold and currency rates 
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function getAllRates()
    {
        
        // JSON dosyasından oku
        $jsonFile = 'merged/rates.json';    
        if (Storage::exists($jsonFile)) {
            return response()->json(
                json_decode(Storage::get($jsonFile), true)
            );
        }

        return response()->json(['error' => 'Veri bulunamadı'], 404);
    }

    /**
     * Retrieves the current currency rates 
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function getCurrentRates()
    {
        // JSON dosyasından oku
        $jsonFile = 'currency/today.json';  
        if (Storage::exists($jsonFile)) {
            return response()->json(
                json_decode(Storage::get($jsonFile), true)
            );
        }

        return response()->json(['error' => 'Veri bulunamadı'], 404);
    }

    /**
     * Retrieves the current gold rates 
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function getGoldRates()
    {
        // JSON dosyasından oku
        $jsonFile = 'gold/today.json';  
        if (Storage::exists($jsonFile)) {
            return response()->json(
                json_decode(Storage::get($jsonFile), true)
            );
        }

        return response()->json(['error' => 'Veri bulunamadı'], 404);
    }

    /**
     * Retrieves the currency rate by its name 
     *
     * @param string $currencyName
     * @return \Illuminate\Http\JsonResponse
     */
    public function getCurrencyRateByName($currencyName)
    {
        // JSON dosyasından oku
        $jsonFile = 'currency/today.json';
        if (Storage::exists($jsonFile)) {
            $data = json_decode(Storage::get($jsonFile), true);
            if (isset($data[$currencyName])) {
                return response()->json([$currencyName => $data[$currencyName]]);
            }
            return response()->json(['error' => 'Currency not found'], 404);
        }

        return response()->json(['error' => 'Data not found'], 404);
    }

    /**
     * Retrieves the gold rate by its name 
     *
     * @param string $goldName
     * @return \Illuminate\Http\JsonResponse
     */
    public function getGoldRateByName($goldName)
    {
        // JSON dosyasından oku
        $jsonFile = 'gold/today.json';
        if (Storage::exists($jsonFile)) {
            $data = json_decode(Storage::get($jsonFile), true);
            if (isset($data[$goldName])) {
                return response()->json([$goldName => $data[$goldName]]);
            }
            return response()->json(['error' => 'Currency not found'], 404);
        }

        return response()->json(['error' => 'Data not found'], 404);
    }
}