package com.expobraintree;

import android.content.Context;
import android.content.SharedPreferences;

import com.braintreepayments.api.paypal.PayPalPendingRequest;
import com.braintreepayments.api.venmo.VenmoPendingRequest;

public class PendingRequestStore {

  static final String PREFERENCES_KEY = "PENDING_REQUEST_SHARED_PREFERENCES";

  static final String PAYPAL_PENDING_REQUEST_KEY = "PAYPAL_PENDING_REQUEST";
  static final String LOCAL_PAYMENT_PENDING_REQUEST_KEY = "LOCAL_PAYMENT_PENDING_REQUEST";
  static final String SEPA_DIRECT_DEBIT_PENDING_REQUEST_KEY = "SEPA_DIRECT_DEBIT_PENDING_REQUEST";
  static final String VENMO_PENDING_REQUEST_KEY = "VENMO_PENDING_REQUEST";

  private static final PendingRequestStore INSTANCE = new PendingRequestStore();

  static PendingRequestStore getInstance() {
    return INSTANCE;
  }

  public void putVenmoPendingRequest(Context context,
                                     VenmoPendingRequest.Started pendingRequest) {
    put(VENMO_PENDING_REQUEST_KEY, pendingRequest.getPendingRequestString(), context);
  }

  public VenmoPendingRequest.Started getVenmoPendingRequest(Context context) {
    String requestString = get(VENMO_PENDING_REQUEST_KEY, context);
    if (requestString != null) {
      return new VenmoPendingRequest.Started(requestString);
    }
    return null;
  }

  public void clearVenmoPendingRequest(Context context) {
    remove(VENMO_PENDING_REQUEST_KEY, context);
  }

  public void putPayPalPendingRequest(Context context,
                                      PayPalPendingRequest.Started pendingRequest) {
    put(PAYPAL_PENDING_REQUEST_KEY, pendingRequest.getPendingRequestString(), context);
  }

  public PayPalPendingRequest.Started getPayPalPendingRequest(Context context) {
    String requestString = get(PAYPAL_PENDING_REQUEST_KEY, context);
    if (requestString != null) {
      return new PayPalPendingRequest.Started(requestString);
    }
    return null;
  }

  public void clearPayPalPendingRequest(Context context) {
    remove(PAYPAL_PENDING_REQUEST_KEY, context);
  }

  static void put(String key, String value, Context context) {
    Context applicationContext = context.getApplicationContext();
    SharedPreferences sharedPreferences =
      applicationContext.getSharedPreferences(PREFERENCES_KEY, Context.MODE_PRIVATE);
    sharedPreferences.edit().putString(key, value).apply();
  }

  static String get(String key, Context context) {
    Context applicationContext = context.getApplicationContext();
    SharedPreferences sharedPreferences =
      applicationContext.getSharedPreferences(PREFERENCES_KEY, Context.MODE_PRIVATE);
    return sharedPreferences.getString(key, null);
  }

  static void remove(String key, Context context) {
    Context applicationContext = context.getApplicationContext();
    SharedPreferences sharedPreferences =
      applicationContext.getSharedPreferences(PREFERENCES_KEY, Context.MODE_PRIVATE);
    sharedPreferences.edit().remove(key).apply();
  }

}