// Copyright 2013 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.

#include "chrome/browser/profiles/incognito_mode_policy_handler.h"

#include "base/logging.h"
#include "base/prefs/pref_value_map.h"
#include "base/strings/string_number_conversions.h"
#include "base/values.h"
#include "chrome/browser/policy/policy_error_map.h"
#include "chrome/browser/policy/policy_map.h"
#include "chrome/browser/prefs/incognito_mode_prefs.h"
#include "chrome/common/pref_names.h"
#include "grit/generated_resources.h"
#include "policy/policy_constants.h"

namespace policy {

IncognitoModePolicyHandler::IncognitoModePolicyHandler() {}

IncognitoModePolicyHandler::~IncognitoModePolicyHandler() {}

bool IncognitoModePolicyHandler::CheckPolicySettings(const PolicyMap& policies,
                                                     PolicyErrorMap* errors) {
  int int_value = IncognitoModePrefs::ENABLED;
  const base::Value* availability =
      policies.GetValue(key::kIncognitoModeAvailability);

  if (availability) {
    if (availability->GetAsInteger(&int_value)) {
      IncognitoModePrefs::Availability availability_enum_value;
      if (!IncognitoModePrefs::IntToAvailability(int_value,
                                                 &availability_enum_value)) {
        errors->AddError(key::kIncognitoModeAvailability,
                         IDS_POLICY_OUT_OF_RANGE_ERROR,
                         base::IntToString(int_value));
        return false;
      }
    } else {
      errors->AddError(key::kIncognitoModeAvailability,
                       IDS_POLICY_TYPE_ERROR,
                       ValueTypeToString(base::Value::TYPE_INTEGER));
      return false;
    }
  } else {
    const base::Value* deprecated_enabled =
        policies.GetValue(key::kIncognitoEnabled);
    if (deprecated_enabled &&
        !deprecated_enabled->IsType(base::Value::TYPE_BOOLEAN)) {
      errors->AddError(key::kIncognitoEnabled,
                       IDS_POLICY_TYPE_ERROR,
                       ValueTypeToString(base::Value::TYPE_BOOLEAN));
      return false;
    }
  }
  return true;
}

void IncognitoModePolicyHandler::ApplyPolicySettings(const PolicyMap& policies,
                                                     PrefValueMap* prefs) {
  const base::Value* availability =
      policies.GetValue(key::kIncognitoModeAvailability);
  const base::Value* deprecated_enabled =
      policies.GetValue(key::kIncognitoEnabled);
  if (availability) {
    int int_value = IncognitoModePrefs::ENABLED;
    IncognitoModePrefs::Availability availability_enum_value;
    if (availability->GetAsInteger(&int_value) &&
        IncognitoModePrefs::IntToAvailability(int_value,
                                              &availability_enum_value)) {
      prefs->SetValue(prefs::kIncognitoModeAvailability,
                      base::Value::CreateIntegerValue(availability_enum_value));
    } else {
      NOTREACHED();
    }
  } else if (deprecated_enabled) {
    // If kIncognitoModeAvailability is not specified, check the obsolete
    // kIncognitoEnabled.
    bool enabled = true;
    if (deprecated_enabled->GetAsBoolean(&enabled)) {
      prefs->SetInteger(
          prefs::kIncognitoModeAvailability,
          enabled ? IncognitoModePrefs::ENABLED : IncognitoModePrefs::DISABLED);
    } else {
      NOTREACHED();
    }
  }
}

}  // namespace policy