Exchange rate calculator default amount fetch fixes

app/src/main/java/com/gmeremit/online/gmeremittance_native/exchange_rate/presenter/ExchangeRateV2Presenter.java

@@ -18,6 +18,7 @@ import com.gmeremit.online.gmeremittance_native.utils.https.GenericApiObserverRe
 import io.reactivex.Observable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.observers.DisposableObserver;
 import io.reactivex.schedulers.Schedulers;
 
 public class ExchangeRateV2Presenter extends BasePresenter implements ExchangeRateV2PresenterInterface, ExchangeRateV2InteractorInterface {
@@ -73,6 +74,20 @@ public class ExchangeRateV2Presenter extends BasePresenter implements ExchangeRa
 
     }
 
+    @Override
+    public void getDefaultReceivingAmountForSelectedCurrency(CountryPaymentService countryPaymentService) {
+        String nativeCountryCode = countryPaymentService.getCountryCode();
+        String preferredCurrency= countryPaymentService.getCurrency();
+         compositeDisposables.add(
+        this.gateway.getAllSeedVAlues().flatMap(seedValueList -> {
+            for (CountryPaymentServiceSeedValueModel seedValueModel : seedValueList) {
+                if (seedValueModel.getCountryCode().equalsIgnoreCase(nativeCountryCode)&&seedValueModel.getCurrency().equalsIgnoreCase(preferredCurrency))
+                    return Observable.just(seedValueModel);
+            }
+            return  Observable.just(new CountryPaymentServiceSeedValueModel(null, null, null));
+        }).subscribeWith(new DefaultRecievingAmountObserver()));
+    }
+
     @Override
     public void onViewDestroyed() {
         super.onViewDestroyed();
@@ -216,4 +231,28 @@ public class ExchangeRateV2Presenter extends BasePresenter implements ExchangeRa
 
         }
     }
+
+    public class DefaultRecievingAmountObserver extends DisposableObserver<CountryPaymentServiceSeedValueModel>
+    {
+
+        @Override
+        public void onNext(CountryPaymentServiceSeedValueModel countryPaymentServiceSeedValueModel) {
+            String receivingAmount=countryPaymentServiceSeedValueModel.getRecipientSeedValue();
+            if(receivingAmount!=null)
+            view.updateReceivingAmountAndFetchExchangeRate(Utils.formatCurrency(receivingAmount));
+            else
+                view.fallbackToSendingAmountAndFetchExchangeRate();
+
+        }
+
+        @Override
+        public void onError(Throwable e) {
+
+        }
+
+        @Override
+        public void onComplete() {
+
+        }
+    }
 }

app/src/main/java/com/gmeremit/online/gmeremittance_native/exchange_rate/presenter/ExchangeRateV2PresenterInterface.java

@@ -15,6 +15,7 @@ public interface ExchangeRateV2PresenterInterface extends BasePresenterInterface
 
     void getForex(CountryPaymentService selectedCountryPaymentService, PaymentMode selectedPaymentMode, String recieveAmount, String sendMoneyEditTextText, boolean shouldCaulatedByRecipient);
 
+    void getDefaultReceivingAmountForSelectedCurrency(CountryPaymentService countryPaymentService);
 
     interface ExchangeRateV2ContractInterface extends BaseContractInterface
     {
@@ -28,5 +29,8 @@ public interface ExchangeRateV2PresenterInterface extends BasePresenterInterface
         void updateExchangeRates(String recipientAmount, String sendAmount, String transferDisplay, String exRateDisplay);
 
         void clearCurrencyData();
+
+        void updateReceivingAmountAndFetchExchangeRate(String amount);
+        void fallbackToSendingAmountAndFetchExchangeRate();
     }
 }

app/src/main/java/com/gmeremit/online/gmeremittance_native/exchange_rate/view/ExchangeMethodV2Activity.java

@@ -210,6 +210,7 @@ public class ExchangeMethodV2Activity extends BaseActivity implements PaymentMod
 
     }
 
+//TODO Implementation for calculating exchange rate on the basis of provided default receiving amount for native country only //
     @Override
     public void onCountrySelected(CountryPaymentService countryPaymentService) {
         this.selectedCountryPaymentService = countryPaymentService;
@@ -225,6 +226,37 @@ public class ExchangeMethodV2Activity extends BaseActivity implements PaymentMod
         }
     }
 
+//TODO Implementation for calculating exchange rate on the basis of provided default receiving amount for corresponding currency.
+//    @Override
+//    public void onCountrySelected(CountryPaymentService countryPaymentService) {
+//        this.selectedCountryPaymentService = countryPaymentService;
+//        showSelectedRecipient(countryPaymentService.getCountryCode(), countryPaymentService.getCurrency());
+//        if (this.countryListingDialog != null) {
+//            this.countryListingDialog.hideKeyboard();
+//            this.countryListingDialog.dismiss();
+//        }
+//        this.presenter.getDefaultReceivingAmountForSelectedCurrency(countryPaymentService);
+//    }
+
+
+    @Override
+    public void updateReceivingAmountAndFetchExchangeRate(String amount) {
+        registerAvailableTextWatchersForEditText(recieveMoneyEditText, true);
+        recieveMoneyEditText.setText(amount);
+        shouldCaulatedByRecipient = true;
+        registerAvailableTextWatchersForEditText(recieveMoneyEditText, false);
+        showPaymentService(true, this.selectedCountryPaymentService.getServiceAvailable());
+    }
+
+    @Override
+    public void fallbackToSendingAmountAndFetchExchangeRate() {
+        registerAvailableTextWatchersForEditText(recieveMoneyEditText, false);
+        recieveMoneyEditText.setText("");
+        shouldCaulatedByRecipient = true;
+        registerAvailableTextWatchersForEditText(recieveMoneyEditText, true);
+        showPaymentService(true, this.selectedCountryPaymentService.getServiceAvailable());
+    }
+
     private void showSelectedRecipient(String selectedCountryCode, String selectedCountryCurrency) {
         int flagResId = CountryFlagMapper.getFlagFromCountryCode(selectedCountryCode);
         if (flagResId != -1)