//
//  MonitorNetworkStatus.m
//  YHScrollView_Test
//
//  Created by Jim on 2021/9/4.
//

#import "MonitorNetworkStatus.h"
#import "Reachability.h"

static MonitorNetworkStatus *manager = nil;

@interface MonitorNetworkStatus ()
@property (nonatomic, strong) Reachability *conn;
@end

@implementation MonitorNetworkStatus

+(instancetype)sharedManager {
    
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        manager = [[MonitorNetworkStatus alloc] init];
    });
    
    return manager;
    
}

- (instancetype)init {
    
    if (self = [super init]) {
        self.conn = [Reachability reachabilityForInternetConnection];
    }
    return self;
    
}

#pragma mark - public
- (void)YHProject_startNotifyWithDelegate:(id)delegate {
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(networkStatusChanged:)
                                                 name:kReachabilityChangedNotification
                                               object:nil];
    self.delegate = delegate;
    [self.conn startNotifier];
    
    BOOL reachability = [self.conn isReachable];
    if ([self.delegate respondsToSelector:@selector(networkStatusNotifyManagerStatusChanged:)]) {
        [self.delegate networkStatusNotifyManagerStatusChanged:reachability];
    }
    
}

- (void)YHProject_stopNotify {
    
    self.delegate = nil;
    [self.conn stopNotifier];
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:kReachabilityChangedNotification
                                                  object:nil];
    
}

#pragma mark - Notify
- (void)networkStatusChanged:(NSNotification *)notif {
    
    BOOL reachability = NO;
    if ([self.conn currentReachabilityStatus] != NotReachable) {
        reachability = YES;
    }
    if ([self.delegate respondsToSelector:@selector(networkStatusNotifyManagerStatusChanged:)]) {
        [self.delegate networkStatusNotifyManagerStatusChanged:reachability];
    }
    
}

@end