// 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.

#include "content/shell/shell_browser_context.h"

#include "base/bind.h"
#include "base/environment.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/threading/thread.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/geolocation_permission_context.h"
#include "content/public/browser/speech_recognition_preferences.h"
#include "content/shell/shell_download_manager_delegate.h"
#include "content/shell/shell_resource_context.h"
#include "content/shell/shell_url_request_context_getter.h"

#if defined(OS_WIN)
#include "base/base_paths_win.h"
#elif defined(OS_LINUX)
#include "base/nix/xdg_util.h"
#elif defined(OS_MACOSX)
#include "base/base_paths_mac.h"
#endif

using content::BrowserThread;

namespace content {

namespace {

#if defined(OS_LINUX)
const char kDotConfigDir[] = ".config";
const char kXdgConfigHomeEnvVar[] = "XDG_CONFIG_HOME";
#endif

class ShellGeolocationPermissionContext : public GeolocationPermissionContext {
 public:
  ShellGeolocationPermissionContext() {}

  // GeolocationPermissionContext implementation).
  virtual void RequestGeolocationPermission(
      int render_process_id,
      int render_view_id,
      int bridge_id,
      const GURL& requesting_frame,
      base::Callback<void(bool)> callback) OVERRIDE {
    NOTIMPLEMENTED();
  }

  virtual void CancelGeolocationPermissionRequest(
      int render_process_id,
      int render_view_id,
      int bridge_id,
      const GURL& requesting_frame) OVERRIDE {
    NOTIMPLEMENTED();
  }

 protected:
  virtual ~ShellGeolocationPermissionContext() {};

 private:
  DISALLOW_COPY_AND_ASSIGN(ShellGeolocationPermissionContext);
};

class ShellSpeechRecognitionPreferences : public SpeechRecognitionPreferences {
 public:
  ShellSpeechRecognitionPreferences() {}

  // Overridden from SpeechRecognitionPreferences:
  virtual bool FilterProfanities() const OVERRIDE {
    return false;
  }

 protected:
  virtual ~ShellSpeechRecognitionPreferences() {}

 private:
  DISALLOW_COPY_AND_ASSIGN(ShellSpeechRecognitionPreferences);
};

}  // namespace

ShellBrowserContext::ShellBrowserContext() {
  InitWhileIOAllowed();
}

ShellBrowserContext::~ShellBrowserContext() {
  if (resource_context_.get()) {
    BrowserThread::DeleteSoon(
      BrowserThread::IO, FROM_HERE, resource_context_.release());
  }
}

void ShellBrowserContext::InitWhileIOAllowed() {
#if defined(OS_WIN)
  CHECK(PathService::Get(base::DIR_LOCAL_APP_DATA, &path_));
  path_ = path_.Append(std::wstring(L"content_shell"));
#elif defined(OS_LINUX)
  scoped_ptr<base::Environment> env(base::Environment::Create());
  FilePath config_dir(base::nix::GetXDGDirectory(env.get(),
                                                 kXdgConfigHomeEnvVar,
                                                 kDotConfigDir));
  path_ = config_dir.Append("content_shell");
#elif defined(OS_MACOSX)
  CHECK(PathService::Get(base::DIR_APP_DATA, &path_));
  path_ = path_.Append("Chromium Content Shell");
#else
  NOTIMPLEMENTED();
#endif

  if (!file_util::PathExists(path_))
    file_util::CreateDirectory(path_);
}

FilePath ShellBrowserContext::GetPath() {
  return path_;
}

bool ShellBrowserContext::IsOffTheRecord() const {
  return false;
}

DownloadManagerDelegate* ShellBrowserContext::GetDownloadManagerDelegate()  {
  download_manager_delegate_ = new ShellDownloadManagerDelegate();
  return download_manager_delegate_.get();
}

net::URLRequestContextGetter* ShellBrowserContext::GetRequestContext()  {
  if (!url_request_getter_) {
    url_request_getter_ = new ShellURLRequestContextGetter(
        GetPath(),
        BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::IO),
        BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::FILE));
  }
  return url_request_getter_;
}

net::URLRequestContextGetter*
    ShellBrowserContext::GetRequestContextForRenderProcess(
        int renderer_child_id)  {
  return GetRequestContext();
}

net::URLRequestContextGetter*
    ShellBrowserContext::GetRequestContextForMedia()  {
  return GetRequestContext();
}

ResourceContext* ShellBrowserContext::GetResourceContext()  {
  if (!resource_context_.get()) {
    resource_context_.reset(new ShellResourceContext(
        static_cast<ShellURLRequestContextGetter*>(GetRequestContext())));
  }
  return resource_context_.get();
}

GeolocationPermissionContext*
    ShellBrowserContext::GetGeolocationPermissionContext()  {
  if (!geolocation_permission_context_) {
    geolocation_permission_context_ =
        new ShellGeolocationPermissionContext();
  }
  return geolocation_permission_context_;
}

SpeechRecognitionPreferences*
    ShellBrowserContext::GetSpeechRecognitionPreferences() {
  if (!speech_recognition_preferences_.get())
    speech_recognition_preferences_ = new ShellSpeechRecognitionPreferences();
  return speech_recognition_preferences_.get();
}

bool ShellBrowserContext::DidLastSessionExitCleanly()  {
  return true;
}

quota::SpecialStoragePolicy* ShellBrowserContext::GetSpecialStoragePolicy() {
  return NULL;
}

}  // namespace content