// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SUPERVISED_SUPERVISED_USER_CREATION_CONTROLLER_H_
#define CHROME_BROWSER_CHROMEOS_LOGIN_SUPERVISED_SUPERVISED_USER_CREATION_CONTROLLER_H_

#include <string>

#include "base/files/file_path.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/strings/string16.h"
#include "base/values.h"
#include "chrome/browser/chromeos/login/supervised/supervised_user_authenticator.h"
#include "chrome/browser/supervised_user/legacy/supervised_user_registration_utility.h"

class Profile;

namespace chromeos {

class SupervisedUserCreationController {
 public:
  // This constant is used to indicate that user does not have one of default
  // avatars: either he has no chromeos avatar at all, or has an external
  // image as an avatar.
  static const int kDummyAvatarIndex;

  enum ErrorCode {
    NO_ERROR,
    CRYPTOHOME_NO_MOUNT,
    CRYPTOHOME_FAILED_MOUNT,
    CRYPTOHOME_FAILED_TPM,
    CLOUD_SERVER_ERROR,
    TOKEN_WRITE_FAILED,
  };

  class StatusConsumer {
   public:
    virtual ~StatusConsumer();

    virtual void OnCreationError(ErrorCode code) = 0;
    virtual void OnLongCreationWarning() = 0;
    virtual void OnCreationTimeout() = 0;
    virtual void OnCreationSuccess() = 0;
  };

  // All UI initialization is deferred till Init() call.
  // |Consumer| is not owned by controller, and it is expected that it wouldn't
  // be deleted before SupervisedUserCreationController.
  explicit SupervisedUserCreationController(StatusConsumer* consumer);
  virtual ~SupervisedUserCreationController();

  // Returns the current supervised user controller if it has been created.
  static SupervisedUserCreationController* current_controller() {
    return current_controller_;
  }

  // Set up controller for creating new supervised user with |display_name|,
  // |password| and avatar indexed by |avatar_index|. StartCreation() have to
  // be called to actually start creating user.
  virtual void StartCreation(const base::string16& display_name,
                             const std::string& password,
                             int avatar_index) = 0;

  // Configures and initiates importing existing supervised user to this device.
  // Existing user is identified by |sync_id|, has |display_name|, |password|,
  // |avatar_index|. The master key for cryptohome is a |master_key|.
  virtual void StartImport(const base::string16& display_name,
                           const std::string& password,
                           int avatar_index,
                           const std::string& sync_id,
                           const std::string& master_key) = 0;

  // Configures and initiates importing existing supervised user to this device.
  // Existing user is identified by |sync_id|, has |display_name|,
  // |avatar_index|. The master key for cryptohome is a |master_key|. The user
  // has password specified in |password_data| and
  // |encryption_key|/|signature_key| for cryptohome.
  virtual void StartImport(const base::string16& display_name,
                           int avatar_index,
                           const std::string& sync_id,
                           const std::string& master_key,
                           const base::DictionaryValue* password_data,
                           const std::string& encryption_key,
                           const std::string& signature_key) = 0;

  virtual void SetManagerProfile(Profile* manager_profile) = 0;
  virtual Profile* GetManagerProfile() = 0;
  virtual void CancelCreation() = 0;
  virtual void FinishCreation() = 0;
  virtual std::string GetSupervisedUserId() = 0;

 protected:
  // Pointer to the current instance of the controller to be used by
  // automation tests.
  static SupervisedUserCreationController* current_controller_;

  StatusConsumer* consumer_;

 private:
  DISALLOW_COPY_AND_ASSIGN(SupervisedUserCreationController);
};

}  // namespace chromeos

#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SUPERVISED_SUPERVISED_USER_CREATION_CONTROLLER_H_