//==============================================================================
// This file is part of Master Password.
// Copyright (c) 2011-2017, Maarten Billemont.
//
// Master Password is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Master Password is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You can find a copy of the GNU General Public License in the
// LICENSE file.  Alternatively, see <http://www.gnu.org/licenses/>.
//==============================================================================

#import <Foundation/Foundation.h>
#import "MPAlgorithm.h"

@protocol MPAlgorithm;

typedef NS_ENUM( NSUInteger, MPKeyOrigin ) {
    MPKeyOriginMasterPassword,
    MPKeyOriginKeyChain,
    MPKeyOriginKeyChainBiometric,
};

@interface MPKey : NSObject

@property(nonatomic, readonly) MPKeyOrigin origin;
@property(nonatomic, readonly, copy) NSString *fullName;

- (instancetype)initForFullName:(NSString *)fullName withMasterPassword:(NSString *)masterPassword;
- (instancetype)initForFullName:(NSString *)fullName withKeyResolver:(NSData *( ^ )(id<MPAlgorithm>))keyResolver
                      keyOrigin:(MPKeyOrigin)origin;

- (NSData *)keyIDForAlgorithm:(id<MPAlgorithm>)algorithm;
- (NSData *)keyDataForAlgorithm:(id<MPAlgorithm>)algorithm;
- (NSData *)keyDataForAlgorithm:(id<MPAlgorithm>)algorithm trimmedLength:(NSUInteger)subKeyLength;

- (BOOL)isEqualToKey:(MPKey *)key;

@end