/************************************************************
 *  * Hyphenate CONFIDENTIAL
 * __________________
 * Copyright (C) 2016 Hyphenate Inc. All rights reserved.
 *
 * NOTICE: All information contained herein is, and remains
 * the property of Hyphenate Inc.
 * Dissemination of this information or reproduction of this material
 * is strictly forbidden unless prior written permission is obtained
 * from Hyphenate Inc.
 */

#import <UIKit/UIKit.h>
#import "EMCDDeviceManagerBase.h"
#import "EMCDDeviceManager+ProximitySensor.h"

static EMCDDeviceManager *emCDDeviceManager;
@interface EMCDDeviceManager (){

}

@end

@implementation EMCDDeviceManager
+(EMCDDeviceManager *)sharedInstance{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        emCDDeviceManager = [[EMCDDeviceManager alloc] init];
    });
    
    return emCDDeviceManager;
}

-(instancetype)init{
    if (self = [super init]) {
        [self _setupProximitySensor];
        [self registerNotifications];
    }
    return self;
}

- (void)registerNotifications
{
    [self unregisterNotifications];
    if (_isSupportProximitySensor) {
        static NSString *notif = @"UIDeviceProximityStateDidChangeNotification";
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(sensorStateChanged:)
                                                     name:notif
                                                   object:nil];
    }
}

- (void)unregisterNotifications {
    if (_isSupportProximitySensor) {
        static NSString *notif = @"UIDeviceProximityStateDidChangeNotification";
        [[NSNotificationCenter defaultCenter] removeObserver:self
                                                        name:notif
                                                      object:nil];
    }
}

- (void)_setupProximitySensor
{
    UIDevice *device = [UIDevice currentDevice];
    [device setProximityMonitoringEnabled:YES];
    _isSupportProximitySensor = device.proximityMonitoringEnabled;
    if (_isSupportProximitySensor) {
        [device setProximityMonitoringEnabled:NO];
    } else {
        
    }
}


@end