#import <Foundation/Foundation.h>
#if !TARGET_OS_WATCH
#import <SystemConfiguration/SystemConfiguration.h>

typedef NS_ENUM(NSInteger, WindReachabilityStatus) {
    WindReachabilityStatusUnknown          = -1,
    WindReachabilityStatusNotReachable     = 0,
    WindReachabilityStatusReachableViaWiFi = 1,
    WindReachabilityStatusReachableVia2G   = 2,
    WindReachabilityStatusReachableVia3G   = 3,
    WindReachabilityStatusReachableVia4G   = 4,
    WindReachabilityStatusReachableVia5G   = 5,
};

NS_ASSUME_NONNULL_BEGIN

/**
 `WindReachabilityManager` monitors the reachability of domains, and addresses for both WWAN and WiFi network interfaces.

 Reachability can be used to determine background information about why a network operation failed, or to trigger a network operation retrying when a connection is established. It should not be used to prevent a user from initiating a network request, as it's possible that an initial request may be required to establish reachability.

 See Apple's Reachability Sample Code ( https://developer.apple.com/library/ios/samplecode/reachability/ )

 @warning Instances of `AFNetworkReachabilityManager` must be started with `-startMonitoring` before reachability status can be determined.
 */
@interface WindReachabilityManager : NSObject

/**
 The current network reachability status.
 */
@property (readonly, nonatomic, assign) WindReachabilityStatus networkReachabilityStatus;

/**
 Whether or not the network is currently reachable.
 */
@property (readonly, nonatomic, assign, getter = isReachable) BOOL reachable;

/**
 Whether or not the network is currently reachable via WWAN.
 */
@property (readonly, nonatomic, assign, getter = isReachableViaWWAN) BOOL reachableViaWWAN;

/**
 Whether or not the network is currently reachable via WiFi.
 */
@property (readonly, nonatomic, assign, getter = isReachableViaWiFi) BOOL reachableViaWiFi;

///---------------------
/// @name Initialization
///---------------------

/**
 Returns the shared network reachability manager.
 */
+ (instancetype)sharedManager;

/**
 Creates and returns a network reachability manager with the default socket address.
 
 @return An initialized network reachability manager, actively monitoring the default socket address.
 */
+ (instancetype)manager;

/**
 Creates and returns a network reachability manager for the specified domain.

 @param domain The domain used to evaluate network reachability.

 @return An initialized network reachability manager, actively monitoring the specified domain.
 */
+ (instancetype)managerForDomain:(NSString *)domain;

/**
 Creates and returns a network reachability manager for the socket address.

 @param address The socket address (`sockaddr_in6`) used to evaluate network reachability.

 @return An initialized network reachability manager, actively monitoring the specified socket address.
 */
+ (instancetype)managerForAddress:(const void *)address;

/**
 Initializes an instance of a network reachability manager from the specified reachability object.

 @param reachability The reachability object to monitor.

 @return An initialized network reachability manager, actively monitoring the specified reachability.
 */
- (instancetype)initWithReachability:(SCNetworkReachabilityRef)reachability NS_DESIGNATED_INITIALIZER;

///--------------------------------------------------
/// @name Starting & Stopping Reachability Monitoring
///--------------------------------------------------

/**
 Starts monitoring for changes in network reachability status.
 */
- (void)startMonitoring;

/**
 Stops monitoring for changes in network reachability status.
 */
- (void)stopMonitoring;

///-------------------------------------------------
/// @name Getting Localized Reachability Description
///-------------------------------------------------

/**
 Returns a localized string representation of the current network reachability status.
 */
- (NSString *)localizedNetworkReachabilityStatusString;

///---------------------------------------------------
/// @name Setting Network Reachability Change Callback
///---------------------------------------------------

/**
 Sets a callback to be executed when the network availability of the `baseURL` host changes.

 @param block A block object to be executed when the network availability of the `baseURL` host changes.. This block has no return value and takes a single argument which represents the various reachability states from the device to the `baseURL`.
 */
- (void)setReachabilityStatusChangeBlock:(nullable void (^)(WindReachabilityStatus status))block;

@end

///--------------------
/// @name Notifications
///--------------------

FOUNDATION_EXPORT NSString * const WindReachabilityDidChangeNotification;
FOUNDATION_EXPORT NSString * const WindReachabilityNotificationStatusItem;

///--------------------
/// @name Functions
///--------------------

/**
 Returns a localized string representation of an `WindReachabilityStatus` value.
 */
FOUNDATION_EXPORT NSString * WindStringFromNetworkReachabilityStatus(WindReachabilityStatus status);

NS_ASSUME_NONNULL_END
#endif