// Copyright (c) 2012 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_SYNC_SYNC_UI_UTIL_H_
#define CHROME_BROWSER_SYNC_SYNC_UI_UTIL_H_
#pragma once

#include <string>

#include "base/string16.h"
#include "base/values.h"
#include "chrome/browser/sync/profile_sync_service.h"

class Browser;
class Profile;

namespace base {
class ListValue;
class DictionaryValue;
}

// Utility functions to gather current sync status information from the sync
// service and constructs messages suitable for showing in UI.
namespace sync_ui_util {

enum MessageType {
  PRE_SYNCED,  // User has not set up sync.
  SYNCED,      // We are synced and authenticated to a gmail account.
  SYNC_ERROR,  // A sync error (such as invalid credentials) has occurred.
  SYNC_PROMO,  // A situation has occurred which should be brought to the user's
               // attention, but not as an error.
};

enum StatusLabelStyle {
  PLAIN_TEXT,  // Label will be plain-text only.
  WITH_HTML    // Label may contain an HTML-formatted link.
};

// TODO(akalin): audit the use of ProfileSyncService* service below,
// and use const ProfileSyncService& service where possible.

// Create status and link labels for the current status labels and link text
// by querying |service|.
// |style| sets the link properties, see |StatusLabelStyle|.
MessageType GetStatusLabels(ProfileSyncService* service,
                            StatusLabelStyle style,
                            string16* status_label,
                            string16* link_label);

// Same as above but for use specifically on the New Tab Page.
// |status_label| may contain an HTML-formatted link.
MessageType GetStatusLabelsForNewTabPage(ProfileSyncService* service,
                                         string16* status_label,
                                         string16* link_label);

// Gets various labels for the sync global error based on the sync error state.
// |menu_item_label|, |bubble_message|, and |bubble_accept_label| must not be
// NULL.
void GetStatusLabelsForSyncGlobalError(ProfileSyncService* service,
                                       string16* menu_item_label,
                                       string16* bubble_message,
                                       string16* bubble_accept_label);

MessageType GetStatus(ProfileSyncService* service);

// Returns a string with the synchronization status.
string16 GetSyncMenuLabel(ProfileSyncService* service);

void AddBoolSyncDetail(base::ListValue* details,
                       const std::string& stat_name,
                       bool stat_value);

// |service| can be NULL.
void ConstructAboutInformation(ProfileSyncService* service,
                               DictionaryValue* strings);

void AddIntSyncDetail(base::ListValue* details,
                      const std::string& stat_name,
                      int64 stat_value);

void AddStringSyncDetails(ListValue* details, const std::string& stat_name,
                          const std::string& stat_value);

// Returns a string describing the chrome version environment. Version format:
// <Build Info> <OS> <Version number> (<Last change>)<channel or "-devel">
// If version information is unavailable, returns "invalid."
// TODO(zea): this approximately matches MakeUserAgentForSyncApi in
// sync_backend_host.cc. Unify the two if possible.
std::string GetVersionString();

}  // namespace sync_ui_util
#endif  // CHROME_BROWSER_SYNC_SYNC_UI_UTIL_H_