// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_PAYMENTS_CORE_PAYMENT_REQUEST_DELEGATE_H_
#define COMPONENTS_PAYMENTS_CORE_PAYMENT_REQUEST_DELEGATE_H_

#include "base/memory/weak_ptr.h"
#include "components/payments/core/payment_request_base_delegate.h"

namespace payments {

class PaymentRequest;

class PaymentRequestDelegate : public PaymentRequestBaseDelegate {
 public:
  enum class DialogType {
    PAYMENT_REQUEST,
    SECURE_PAYMENT_CONFIRMATION,
  };

  PaymentRequestDelegate();
  ~PaymentRequestDelegate() override;

  void set_dialog_type(DialogType dialog_type) { dialog_type_ = dialog_type; }

  // Shows the Payment Request dialog for the given |request|.
  virtual void ShowDialog(base::WeakPtr<PaymentRequest> request) = 0;

  virtual void RetryDialog() = 0;

  // Closes the same dialog that was opened by this delegate. Must be safe to
  // call when the dialog is not showing.
  virtual void CloseDialog() = 0;

  // Disables the dialog and shows an error message that the transaction has
  // failed. Warning: This method may result in the synchronous teardown of
  // the PaymentRequest object. Callers should not access their members after
  // calling this method.
  virtual void ShowErrorMessage() = 0;

  // Disables user interaction by showing a spinner.
  virtual void ShowProcessingSpinner() = 0;

  // Shows a mandatory payment app loading view.
  virtual void ShowLoadingView() = 0;

  // Returns whether the browser window is active.
  virtual bool IsBrowserWindowActive() const = 0;

  // Returns a weak pointer to this delegate.
  base::WeakPtr<PaymentRequestDelegate> GetWeakPtr();

 protected:
  DialogType dialog_type_ = DialogType::PAYMENT_REQUEST;

 private:
  base::WeakPtrFactory<PaymentRequestDelegate> weak_ptr_factory_{this};
};

}  // namespace payments

#endif  // COMPONENTS_PAYMENTS_CORE_PAYMENT_REQUEST_DELEGATE_H_