//  Created by Frederic Jacobs on 12/11/14.
//  Copyright (c) 2014 Open Whisper Systems. All rights reserved.

#import "OWSSignalServiceProtos.pb.h"
#import "TSMessage.h"

@interface TSErrorMessage : TSMessage

typedef NS_ENUM(int32_t, TSErrorMessageType) {
    TSErrorMessageNoSession,
    TSErrorMessageWrongTrustedIdentityKey,
    TSErrorMessageInvalidKeyException,
    TSErrorMessageMissingKeyId, // unused
    TSErrorMessageInvalidMessage,
    TSErrorMessageDuplicateMessage,
    TSErrorMessageInvalidVersion,
};

+ (instancetype)corruptedMessageWithEnvelope:(OWSSignalServiceProtosEnvelope *)envelope
                             withTransaction:(YapDatabaseReadWriteTransaction *)transaction;

+ (instancetype)invalidVersionWithEnvelope:(OWSSignalServiceProtosEnvelope *)envelope
                           withTransaction:(YapDatabaseReadWriteTransaction *)transaction;

+ (instancetype)invalidKeyExceptionWithEnvelope:(OWSSignalServiceProtosEnvelope *)envelope
                                withTransaction:(YapDatabaseReadWriteTransaction *)transaction;

+ (instancetype)missingSessionWithEnvelope:(OWSSignalServiceProtosEnvelope *)envelope
                           withTransaction:(YapDatabaseReadWriteTransaction *)transaction;

@property (nonatomic, readonly) TSErrorMessageType errorType;

@end