//
//  OpenVPNAdapter+Provider.h
//  OpenVPN iOS Client
//
//  Created by Sergey Abramchuk on 11.02.17.
//
//

#import "OpenVPNEvent.h"

#import "OpenVPNAdapter.h"

@class NEPacketTunnelNetworkSettings;

// TODO: Add documentation to properties and methods

@protocol OpenVPNAdapterPacketFlow <NSObject>

- (void)readPacketsWithCompletionHandler:(nonnull void (^)(NSArray<NSData *>  * _Nonnull packets, NSArray<NSNumber *> * _Nonnull protocols))completionHandler;
- (BOOL)writePackets:(nonnull NSArray<NSData *> *)packets withProtocols:(nonnull NSArray<NSNumber *> *)protocols;

@end

@protocol OpenVPNAdapterDelegate <NSObject>

- (void)configureTunnelWithSettings:(nonnull NEPacketTunnelNetworkSettings *)settings
                 callback:(nonnull void (^)(id<OpenVPNAdapterPacketFlow> _Nullable flow))callback
NS_SWIFT_NAME(configureTunnel(settings:callback:));

- (void)handleEvent:(OpenVPNEvent)event
            message:(nullable NSString *)message
NS_SWIFT_NAME(handle(event:message:));

- (void)handleError:(nonnull NSError *)error
NS_SWIFT_NAME(handle(error:));

@end

@interface OpenVPNAdapter (Provider)

@property (strong, nonatomic, nullable) NSString *username;
@property (strong, nonatomic, nullable) NSString *password;

@property (weak, nonatomic, null_unspecified) id<OpenVPNAdapterDelegate> delegate;

- (BOOL)configureUsing:(nonnull NSData *)settings
            error:(out NSError * __nullable * __nullable)error
NS_SWIFT_NAME(configure(using:));

- (void)connect;
- (void)disconnect;

@end