DWBaseAdvancedSecurityModel.m

//
//  Created by Andrew Podkovyrin
//  Copyright © 2019 Dash Core Group. All rights reserved.
//
//  Licensed under the MIT License (the "License");
//  you may not use this file except in compliance with the License.
//  You may obtain a copy of the License at
//
//  https://opensource.org/licenses/MIT
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//

#import "DWBaseAdvancedSecurityModel.h"

#import <DashSync/DashSync.h>

#import "UIColor+DWStyle.h"
#import "dashwallet-Swift.h"

NS_ASSUME_NONNULL_BEGIN

@implementation DWBaseAdvancedSecurityModel

@synthesize lockTimerTimeIntervals = _lockTimerTimeIntervals;
@synthesize spendingConfirmationValues = _spendingConfirmationValues;

- (instancetype)init {
    return [self initWithHasTouchID:NO hasFaceID:NO];
}

- (instancetype)initWithHasTouchID:(BOOL)hasTouchID hasFaceID:(BOOL)hasFaceID {
    self = [super init];
    if (self) {
        _hasTouchID = hasTouchID;
        _hasFaceID = hasFaceID;
    }
    return self;
}

#pragma mark - Lock Timer

- (NSArray<NSNumber *> *)lockTimerTimeIntervals {
    if (!_lockTimerTimeIntervals) {
        // Immediately (lock timer is off) / 1 min / 5 min / 1 hr / 1 day
        _lockTimerTimeIntervals = @[ @0, @60, @(60 * 5), @(60 * 60), @(60 * 60 * 24) ];
    }

    return _lockTimerTimeIntervals;
}

- (NSString *)titleForCurrentLockTimerTimeInterval {
    if (self.lockTimerTimeInterval.integerValue == 0) {
        return NSLocalizedString(@"Logout", @"a verb, Logout Immediately");
    }
    else {
        return NSLocalizedString(@"Logout after", @"Logout after 5 min");
    }
}

- (NSString *)stringForLockTimerTimeInterval:(NSNumber *)number {
    const NSInteger value = number.integerValue;
    switch (value) {
        case 0:
            return NSLocalizedString(@"Immediately", nil);
        case 60:
            return NSLocalizedString(@"1 min", @"Shorten version of minute");
        case (60 * 5):
            return NSLocalizedString(@"5 min", @"Shorten version of minutes");
        case (60 * 60):
            return NSLocalizedString(@"1 hour", nil);
        case (60 * 60 * 24):
            return NSLocalizedString(@"24 hours", nil);
        default:
            NSAssert(NO, @"Unhandled time interval");
            return @"Unknown";
    }
}

- (NSAttributedString *)currentLockTimerTimeIntervalWithFont:(UIFont *)font
                                                       color:(UIColor *)color {
    NSNumber *number = self.lockTimerTimeInterval;
    NSString *string = [self stringForLockTimerTimeInterval:number];

    NSDictionary<NSAttributedStringKey, id> *attributes = @{
        NSFontAttributeName : font,
        NSForegroundColorAttributeName : color,
    };

    NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:string
                                                                           attributes:attributes];

    return attributedString;
}

#pragma mark - Spending Confirmation

- (NSArray<NSNumber *> *)spendingConfirmationValues {
    if (!_spendingConfirmationValues) {
        // Dash values: 0 / 0.1 / 0.5 / 1 / 5
        _spendingConfirmationValues = @[ @(0), @(DUFFS / 10), @(DUFFS / 2), @(DUFFS), @(DUFFS * 5) ];
    }

    return _spendingConfirmationValues;
}

- (NSString *)titleForSpendingConfirmationOption {
    if (self.hasTouchID) {
        return NSLocalizedString(@"Touch ID limit", nil);
    }
    else if (self.hasFaceID) {
        return NSLocalizedString(@"Face ID limit", nil);
    }
    else {
        return @"";
    }
}

- (NSAttributedString *)spendingConfirmationString:(NSNumber *)number
                                              font:(UIFont *)font
                                             color:(UIColor *)color {
    long long value = number.longLongValue;
    return [NSAttributedString dw_dashAttributedStringForAmount:value tintColor:color font:font];
}

- (NSAttributedString *)currentSpendingConfirmationWithFont:(UIFont *)font
                                                      color:(UIColor *)color {
    return [self spendingConfirmationString:self.spendingConfirmationLimit
                                       font:font
                                      color:color];
}

- (NSAttributedString *)currentSpendingConfirmationDescriptionWithFont:(UIFont *)font
                                                                 color:(UIColor *)color {
    NSDictionary<NSAttributedStringKey, id> *attributes = @{
        NSFontAttributeName : font,
        NSForegroundColorAttributeName : color,
    };

    if (self.spendingConfirmationLimit.longLongValue == 0) {
        NSString *string = NSLocalizedString(@"PIN is always required to make a payment", nil);
        string = [string stringByAppendingString:@"\n"]; // to force the same height of label in both cases

        NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:string
                                                                               attributes:attributes];

        return attributedString;
    }
    else {
        NSString *string = nil;
        if (self.hasTouchID) {
            string = NSLocalizedString(@"You can authenticate with Touch ID for payments below", nil);
        }
        else if (self.hasFaceID) {
            string = NSLocalizedString(@"You can authenticate with Face ID for payments below", nil);
        }
        else {
            string = NSLocalizedString(@"You can authenticate with biometrics for payments below", nil);
        }

        string = [string stringByAppendingString:@" "];

        NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] init];
        [attributedString appendAttributedString:[[NSAttributedString alloc] initWithString:string
                                                                                 attributes:attributes]];

        NSAttributedString *valueString = [self currentSpendingConfirmationWithFont:font
                                                                              color:[UIColor dw_darkTitleColor]];
        [attributedString appendAttributedString:valueString];

        return [attributedString copy];
    }
}

@end

NS_ASSUME_NONNULL_END