//Copyright (c) 2012, Denis Hennessy (Peer Assembly - http://peerassembly.com)
//All rights reserved.
//                                    
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions are met:
//  * Redistributions of source code must retain the above copyright
//  notice, this list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above copyright
//  notice, this list of conditions and the following disclaimer in the
//  documentation and/or other materials provided with the distribution.
//  * Neither the name of Peer Assembly, Denis Hennessy nor the
//  names of its contributors may be used to endorse or promote products
//  derived from this software without specific prior written permission.
//                                    
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
//ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
//WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
//DISCLAIMED. IN NO EVENT SHALL PEER ASSEMBLY OR DENIS HENNESSY BE LIABLE FOR ANY
//DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
//(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
//ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
//(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
//SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#import <UIKit/UIKit.h>

typedef enum {
    PasscodeActionSet,
    PasscodeActionEnter,
    PasscodeActionChange
} PasscodeAction;

@class PAPasscodeViewController;

@protocol PAPasscodeViewControllerDelegate <NSObject>

@optional

- (void)PAPasscodeViewControllerDidCancel:(PAPasscodeViewController *)controller;
- (void)PAPasscodeViewControllerDidChangePasscode:(PAPasscodeViewController *)controller;
- (void)PAPasscodeViewControllerDidEnterAlternativePasscode:(PAPasscodeViewController *)controller;
- (void)PAPasscodeViewControllerDidEnterPasscode:(PAPasscodeViewController *)controller;
- (void)PAPasscodeViewControllerDidSetPasscode:(PAPasscodeViewController *)controller;
- (void)PAPasscodeViewController:(PAPasscodeViewController *)controller didFailToEnterPasscode:(NSInteger)attempts;

@end

@interface PAPasscodeViewController : UIViewController {
    UIView *contentView;
    NSInteger phase;
    UILabel *promptLabel;
    UILabel *messageLabel;
    UIImageView *failedImageView;
    UILabel *failedAttemptsLabel;
    UITextField *passcodeTextField;
    UIImageView *digitImageViews[4];
    UIImageView *snapshotImageView;
}

@property (strong) UIView *backgroundView;
@property (readonly) PasscodeAction action;
@property (weak) id<PAPasscodeViewControllerDelegate> delegate;
@property (strong) NSString *alternativePasscode;
@property (strong) NSString *passcode;
@property (assign) BOOL simple;
@property (assign) NSInteger failedAttempts;
@property (strong) NSString *enterPrompt;
@property (strong) NSString *confirmPrompt;
@property (strong) NSString *changePrompt;
@property (strong) NSString *message;

- (id)initForAction:(PasscodeAction)action;

@end