// Copyright 2013 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "mist/context.h"

#include <base/check.h>
#include <base/logging.h>
#include <brillo/udev/udev.h>
#include <brillo/usb/usb_device_event_notifier.h>
#include <brillo/usb/usb_manager.h>

#include "mist/config_loader.h"
#include "mist/event_dispatcher.h"
#include "mist/metrics.h"

namespace mist {

Context::Context() = default;

Context::~Context() = default;

bool Context::Initialize() {
  metrics_.reset(new Metrics());
  CHECK(metrics_);

  config_loader_.reset(new ConfigLoader());
  CHECK(config_loader_);
  if (!config_loader_->LoadDefaultConfig()) {
    LOG(ERROR) << "Could not load default config file.";
    return false;
  }

  event_dispatcher_.reset(new EventDispatcher());
  CHECK(event_dispatcher_);

  udev_ = brillo::Udev::Create();
  if (!udev_) {
    LOG(ERROR) << "Could not create udev library context.";
    return false;
  }

  usb_device_event_notifier_ =
      std::make_unique<brillo::UsbDeviceEventNotifier>(udev_.get());
  if (!usb_device_event_notifier_->Initialize()) {
    LOG(ERROR) << "Could not initialize USB device event notification.";
    return false;
  }

  usb_manager_ = brillo::UsbManager::Create();
  if (!usb_manager_) {
    LOG(ERROR) << "Could not create USB manager: " << usb_manager_->error();
    return false;
  }

  return true;
}

}  // namespace mist