// 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.

#include "base/power_monitor/power_monitor.h"
#include "base/power_monitor/power_monitor_device_source.h"
#include "base/power_monitor/power_monitor_source.h"

namespace base {

namespace {

// The most-recently-seen power source.
bool g_on_battery = false;

}  // namespace

// static
void PowerMonitorDeviceSource::SetPowerSource(bool on_battery) {
  if (on_battery != g_on_battery) {
    g_on_battery = on_battery;
    ProcessPowerEvent(POWER_STATE_EVENT);
  }
}

// static
void PowerMonitorDeviceSource::HandleSystemSuspending() {
  ProcessPowerEvent(SUSPEND_EVENT);
}

// static
void PowerMonitorDeviceSource::HandleSystemResumed() {
  ProcessPowerEvent(RESUME_EVENT);
}

bool PowerMonitorDeviceSource::IsOnBatteryPower() {
  return g_on_battery;
}

// static
void PowerMonitorDeviceSource::ThermalEventReceived(
    PowerThermalObserver::DeviceThermalState state) {
  if (!PowerMonitor::IsInitialized()) {
    PowerMonitor::Initialize(std::make_unique<PowerMonitorDeviceSource>());
  }
  PowerMonitor::SetCurrentThermalState(state);

  ProcessThermalEvent(state);
}

PowerThermalObserver::DeviceThermalState
PowerMonitorDeviceSource::GetCurrentThermalState() {
  return current_thermal_state_;
}

void PowerMonitorDeviceSource::SetCurrentThermalState(
    PowerThermalObserver::DeviceThermalState state) {
  current_thermal_state_ = state;
}

}  // namespace base
