ios 13 dark mode for whatsapp

DarkMode.m

#import <UIKit/UIKit.h>

%config(generator=internal)

@interface WAMessage: NSObject
@property (nonatomic, retain) NSAttributedString *attributedText;
@property (nonatomic, retain) NSString *text;
@end

@interface WAMessageReplyContext : NSObject
@property(copy, nonatomic) NSAttributedString *snippet;
@property (nonatomic, retain) NSString *senderName;
@end

@interface WAMessageReplyContextSlice : NSObject
@property(nonatomic, retain) WAMessageReplyContext *replyContext;
@end

%hook UIViewController

- (void)setOverrideUserInterfaceStyle:(long long)arg1 {
    if (@available(iOS 13.0, *)) {
        arg1 = UIUserInterfaceStyleDark;
        return %orig(arg1);
    } else {
        return %orig;
    }
}
%end

%hook UIView
- (void)_setOverrideUserInterfaceStyle:(long long)arg1 {
    if (@available(iOS 13.0, *)) {
        arg1 = UIUserInterfaceStyleDark;
        return %orig(arg1);
    } else {
        return %orig;
    }
}
- (void)setOverrideUserInterfaceStyle:(long long)arg1 {
    if (@available(iOS 13.0, *)) {
        arg1 = UIUserInterfaceStyleDark;
        return %orig(arg1);
    } else {
        return %orig;
    }
}
%end

// from WADarkMode: https://github.com/AhmedBafkir/WADarkMode
%hook WAMessage

- (NSAttributedString *)attributedText {
    
    NSAttributedString *ah = %orig;
    NSMutableAttributedString *copy = [ah mutableCopy];
    [copy addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:NSMakeRange(0, [copy length])];
    ah = copy;
    
    return ah;
}

%end

%hook WAMessageReplyContextSlice

- (NSAttributedString *)attributedTextWithMessage:(id)arg1 textAlignment:(NSInteger)arg2 {
    
    NSAttributedString *ah = %orig;
    NSMutableAttributedString *copy = [ah mutableCopy];
    [copy addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:NSMakeRange(0, [copy length])];
    ah = copy;
    
    return ah;
}

%end