/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_PaymentRequestManager_h

#define mozilla_dom_PaymentRequestManager_h

#include "nsISupports.h"

#include "PaymentRequest.h"

#include "mozilla/dom/PaymentRequestBinding.h"

#include "mozilla/dom/PaymentRequestUpdateEventBinding.h"

#include "mozilla/dom/PaymentResponseBinding.h"

#include "nsCOMPtr.h"

#include "nsTArray.h"

namespace mozilla {

namespace dom {

class PaymentRequestChild;

class IPCPaymentActionRequest;

/*

 *  PaymentRequestManager is a singleton used to manage the created PaymentRequests.

 *  It is also the communication agent to chrome process.

 */

class PaymentRequestManager final

{

public:

  NS_INLINE_DECL_REFCOUNTING(PaymentRequestManager)

  static already_AddRefed<PaymentRequestManager> GetSingleton();

  /*

   *  This method is used to create PaymentRequest object and send corresponding

   *  data to chrome process for internal payment creation, such that content

   *  process can ask specific task by sending requestId only.

   */

  nsresult

  CreatePayment(JSContext* aCx,

                nsPIDOMWindowInner* aWindow,

                nsIPrincipal* aTopLevelPrincipal,

                const Sequence<PaymentMethodData>& aMethodData,

                const PaymentDetailsInit& aDetails,

                const PaymentOptions& aOptions,

                PaymentRequest** aRequest);

  nsresult CanMakePayment(PaymentRequest* aRequest);

  nsresult ShowPayment(PaymentRequest* aRequest);

  nsresult AbortPayment(PaymentRequest* aRequest, bool aDeferredShow);

  nsresult CompletePayment(PaymentRequest* aRequest,

                           const PaymentComplete& aComplete,

                           bool aTimedOut = false);

  nsresult UpdatePayment(JSContext* aCx,

                         PaymentRequest* aRequest,

                         const PaymentDetailsUpdate& aDetails,

                         bool aRequestShipping,

                         bool aDeferredShow);

  nsresult ClosePayment(PaymentRequest* aRequest);

  nsresult RetryPayment(JSContext* aCx,

                        PaymentRequest* aRequest,

                        const PaymentValidationErrors& aErrors);

  nsresult RespondPayment(PaymentRequest* aRequest,

                          const IPCPaymentActionResponse& aResponse);

  nsresult ChangeShippingAddress(PaymentRequest* aRequest,

                                 const IPCPaymentAddress& aAddress);

  nsresult ChangeShippingOption(PaymentRequest* aRequest,

                                const nsAString& aOption);

  nsresult ChangePayerDetail(PaymentRequest* aRequest,

                             const nsAString& aPayerName,

                             const nsAString& aPayerEmail,

                             const nsAString& aPayerPhone);

  // Called to ensure that we don't "leak" aRequest if we shut down while it had

  // an active request to the parent.

  void RequestIPCOver(PaymentRequest* aRequest);

private:

  PaymentRequestManager() = default;

  ~PaymentRequestManager()

  {

    MOZ_ASSERT(mActivePayments.Count() == 0);

  }

  PaymentRequestChild* GetPaymentChild(PaymentRequest* aRequest);

  nsresult SendRequestPayment(PaymentRequest* aRequest,

                              const IPCPaymentActionRequest& action,

                              bool aResponseExpected = true);

  void NotifyRequestDone(PaymentRequest* aRequest);

  // Strong pointer to requests with ongoing IPC messages to the parent.

  nsDataHashtable<nsRefPtrHashKey<PaymentRequest>, uint32_t> mActivePayments;

};

} // end of namespace dom

} // end of namespace mozilla

#endif