first upload all files

Modules/Currency/Providers/CurrencyServiceProvider.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Modules\Currency\Providers;
+
+use Modules\Support\Traits\AddsAsset;
+use Illuminate\Support\ServiceProvider;
+use Modules\Admin\Ui\Facades\TabManager;
+use Illuminate\Console\Scheduling\Schedule;
+use Modules\Currency\Admin\CurrencyRateTabs;
+use Modules\Currency\Console\RefreshCurrencyRatesCommand;
+
+class CurrencyServiceProvider extends ServiceProvider
+{
+    use AddsAsset;
+
+    /**
+     * Bootstrap the application services.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+        if (! config('app.installed')) {
+            return;
+        }
+
+        TabManager::register('currency_rates', CurrencyRateTabs::class);
+
+        $this->addAdminAssets('admin.currency_rates.index', ['admin.currency.js']);
+
+        if ($this->app->runningInConsole() && setting('auto_refresh_currency_rates', false)) {
+            $this->commands(RefreshCurrencyRatesCommand::class);
+
+            $this->registerScheduler();
+        }
+    }
+
+    private function registerScheduler()
+    {
+        $this->app->booted(function ($app) {
+            $frequency = setting('auto_refresh_currency_rate_frequency');
+
+            if (in_array($frequency, ['daily', 'weekly', 'monthly'])) {
+                $app[Schedule::class]->command(RefreshCurrencyRatesCommand::class)->{$frequency}();
+            }
+        });
+    }
+}