Feat add payment with gateway of montify

app/Services/Payment/WalletPaymentManager.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace App\Services\Payment;
+
+use App\Services\ConfigService;
+use App\Services\Payment\Contracts\WalletPaymentGatewayInterface;
+use App\Services\Payment\Gateways\MontifyPartnerGateway;
+use InvalidArgumentException;
+
+/**
+ * انتخاب و مدیریت درگاه فعال شارژ کیف پول.
+ *
+ * افزودن درگاه جدید:
+ * 1) کلاس Gateway با WalletPaymentGatewayInterface
+ * 2) ثبت در map داخل drivers()
+ * 3) مقدار جدید در setting: wallet_payment_provider
+ */
+class WalletPaymentManager
+{
+    public const PROVIDER_NONE = 'none';
+
+    public const PROVIDER_MONTIFY = 'montify';
+
+    public function __construct(private ConfigService $config)
+    {
+    }
+
+    /**
+     * @return array<string, class-string<WalletPaymentGatewayInterface>>
+     */
+    public function drivers(): array
+    {
+        return [
+            self::PROVIDER_MONTIFY => MontifyPartnerGateway::class,
+            // مثال آینده:
+            // self::PROVIDER_PAYPING => PaypingDirectGateway::class,
+        ];
+    }
+
+    public function configuredProvider(): string
+    {
+        $provider = strtolower($this->config->getString('wallet_payment_provider', ''));
+        if ($provider !== '' && $provider !== self::PROVIDER_NONE) {
+            return $provider;
+        }
+
+        // سازگاری با سوییچ قدیمی external_payment_enabled
+        if ($this->config->getBool('external_payment_enabled', false)) {
+            return self::PROVIDER_MONTIFY;
+        }
+
+        return self::PROVIDER_NONE;
+    }
+
+    public function resolve(?string $provider = null): ?WalletPaymentGatewayInterface
+    {
+        $key = strtolower($provider ?: $this->configuredProvider());
+        if ($key === '' || $key === self::PROVIDER_NONE) {
+            return null;
+        }
+
+        $drivers = $this->drivers();
+        if (!isset($drivers[$key])) {
+            return null;
+        }
+
+        return app($drivers[$key]);
+    }
+
+    public function resolveOrFail(?string $provider = null): WalletPaymentGatewayInterface
+    {
+        $gateway = $this->resolve($provider);
+        if (!$gateway) {
+            throw new InvalidArgumentException('درگاه پرداخت پیکربندی نشده است');
+        }
+
+        return $gateway;
+    }
+
+    /** فقط برای UI کلاینت — بدون افشای نوع/credential */
+    public function isOnlineDepositAvailable(): bool
+    {
+        $gateway = $this->resolve();
+
+        return $gateway !== null && $gateway->isAvailable();
+    }
+
+    /**
+     * @return array{online_enabled: bool}
+     */
+    public function publicOptions(): array
+    {
+        return [
+            'online_enabled' => $this->isOnlineDepositAvailable(),
+        ];
+    }
+}