YTLitePlus/Source/AppIconOptionsController.m

#import "AppIconOptionsController.h"
#import <YouTubeHeader/YTAssetLoader.h>

@interface AppIconOptionsController () <UITableViewDataSource, UITableViewDelegate>

@property (strong, nonatomic) UITableView *tableView;
@property (strong, nonatomic) UIButton *backButton;
@property (strong, nonatomic) NSArray<NSString *> *appIcons;
@property (assign, nonatomic) NSInteger selectedIconIndex;

@end

@implementation AppIconOptionsController

- (void)viewDidLoad {
    [super viewDidLoad];

    self.title = @"Change App Icon";
    [self.navigationController.navigationBar setTitleTextAttributes:@{NSFontAttributeName: [UIFont fontWithName:@"YTSans-Bold" size:22], NSForegroundColorAttributeName: [UIColor whiteColor]}];

    self.selectedIconIndex = -1;
    
    self.tableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];
    self.tableView.dataSource = self;
    self.tableView.delegate = self;
    [self.view addSubview:self.tableView];

    self.backButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [self.backButton setImage:[UIImage imageNamed:@"Back.png" inBundle:[NSBundle mainBundle] compatibleWithTraitCollection:nil] forState:UIControlStateNormal];
    [self.backButton addTarget:self action:@selector(back) forControlEvents:UIControlEventTouchUpInside];
    [self.backButton setFrame:CGRectMake(0, 0, 24, 24)];
    UIBarButtonItem *customBackButton = [[UIBarButtonItem alloc] initWithCustomView:self.backButton];
    self.navigationItem.leftBarButtonItem = customBackButton;

    UIColor *buttonColor = [UIColor colorWithRed:203.0/255.0 green:22.0/255.0 blue:51.0/255.0 alpha:1.0];
    UIBarButtonItem *resetButton = [[UIBarButtonItem alloc] initWithImage:[UIImage systemImageNamed:@"arrow.clockwise.circle.fill"] style:UIBarButtonItemStylePlain target:self action:@selector(resetIcon)];
    
    UIBarButtonItem *saveButton = [[UIBarButtonItem alloc] initWithTitle:@"Save" style:UIBarButtonItemStylePlain target:self action:@selector(saveIcon)];
    [saveButton setTitleTextAttributes:@{NSForegroundColorAttributeName: buttonColor, NSFontAttributeName: [UIFont fontWithName:@"YTSans-Medium" size:17]} forState:UIControlStateNormal];
    
    self.navigationItem.rightBarButtonItems = @[saveButton, resetButton];
    
    NSString *path = [[NSBundle mainBundle] pathForResource:@"YTLitePlus" ofType:@"bundle"];
    NSBundle *bundle = [NSBundle bundleWithPath:path];
    self.appIcons = [bundle pathsForResourcesOfType:@"png" inDirectory:@"AppIcons"];
    
    if (![UIApplication sharedApplication].supportsAlternateIcons) {
        NSLog(@"Alternate icons are not supported on this device.");
    }
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.appIcons.count;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 60.0;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
    if (!cell) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"Cell"];
    }
    
    NSString *iconPath = self.appIcons[indexPath.row];
    cell.textLabel.text = [iconPath.lastPathComponent stringByDeletingPathExtension];
    
    UIImage *iconImage = [UIImage imageWithContentsOfFile:iconPath];
    cell.imageView.image = iconImage;
    cell.imageView.layer.cornerRadius = 10.0;
    cell.imageView.clipsToBounds = YES;
    cell.imageView.frame = CGRectMake(10, 10, 40, 40);
    cell.textLabel.frame = CGRectMake(60, 10, self.view.frame.size.width - 70, 40);
    
    if (indexPath.row == self.selectedIconIndex) {
        cell.accessoryType = UITableViewCellAccessoryCheckmark;
    } else {
        cell.accessoryType = UITableViewCellAccessoryNone;
    }
    
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    
    self.selectedIconIndex = indexPath.row;
    [self.tableView reloadData];
}

- (void)resetIcon {
    [[UIApplication sharedApplication] setAlternateIconName:nil completionHandler:^(NSError * _Nullable error) {
        if (error) {
            NSLog(@"Error resetting icon: %@", error.localizedDescription);
            [self showAlertWithTitle:@"Error" message:@"Failed to reset icon"];
        } else {
            NSLog(@"Icon reset successfully");
            [self showAlertWithTitle:@"Success" message:@"Icon reset successfully"];
            [self.tableView reloadData];
        }
    }];
}

- (void)saveIcon {
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        NSString *selectedIcon = self.selectedIconIndex >= 0 ? self.appIcons[self.selectedIconIndex] : nil;
        if (selectedIcon) {
            NSString *iconName = [selectedIcon.lastPathComponent stringByDeletingPathExtension];
            NSString *plistPath = [[NSBundle mainBundle] pathForResource:@"Info" ofType:@"plist"];
            NSMutableDictionary *infoDict = [NSMutableDictionary dictionaryWithContentsOfFile:plistPath];
            NSMutableDictionary *iconsDict = [infoDict objectForKey:@"CFBundleIcons"];
            
            if (iconsDict) {
                NSMutableDictionary *primaryIconDict = [iconsDict objectForKey:@"CFBundlePrimaryIcon"];
                if (primaryIconDict) {
                    NSMutableArray *iconFiles = [primaryIconDict objectForKey:@"CFBundleIconFiles"];
                    [iconFiles addObject:iconName];
                    primaryIconDict[@"CFBundleIconFiles"] = iconFiles;
                }
                [infoDict setObject:iconsDict forKey:@"CFBundleIcons"];
                [infoDict writeToFile:plistPath atomically:YES];
                
                [[UIApplication sharedApplication] setAlternateIconName:iconName completionHandler:^(NSError * _Nullable error) {
                    if (error) {
                        NSLog(@"Error setting alternate icon: %@", error.localizedDescription);
                        [self showAlertWithTitle:@"Error" message:@"Failed to set alternate icon"];
                    } else {
                        NSLog(@"Alternate icon set successfully");
                        [self showAlertWithTitle:@"Success" message:@"Alternate icon set successfully"];
                        
                        dispatch_async(dispatch_get_main_queue(), ^{
                            [self.tableView reloadData];
                        });
                    }
                }];
            } else {
                NSLog(@"CFBundleIcons key not found in Info.plist");
            }
        } else {
            NSLog(@"Selected icon path is nil");
        }
    });
}

- (void)showAlertWithTitle:(NSString *)title message:(NSString *)message {
    dispatch_async(dispatch_get_main_queue(), ^{
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:nil];
        [alert addAction:okAction];
        [self presentViewController:alert animated:YES completion:nil];
    });
}

- (void)back {
    [self.navigationController popViewControllerAnimated:YES];
}

@end