space-ios/iOSClient/AppDelegate.m

//
//  AppDelegate.m
//  Nextcloud iOS
//
//  Created by Marino Faggiana on 04/09/14.
//  Copyright (c) 2017 Marino Faggiana. All rights reserved.
//
//  Author Marino Faggiana <marino.faggiana@nextcloud.com>
//
//  This program 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.
//
//  This program 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 should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
//

#import "AppDelegate.h"
#import <JDStatusBarNotification/JDStatusBarNotification.h>

#import "AFURLSessionManager.h"
#import "CCNetworking.h"
#import "CCGraphics.h"
#import "CCSynchronize.h"
#import "CCMain.h"
#import "CCDetail.h"
#import <Fabric/Fabric.h>
#import <Crashlytics/Crashlytics.h>
#import "NCBridgeSwift.h"
#import "NCAutoUpload.h"
#import "Firebase.h"
#import "NCPushNotificationEncryption.h"

@interface AppDelegate () <UNUserNotificationCenterDelegate, FIRMessagingDelegate>

@end

@implementation AppDelegate

+ (void)initialize
{
    [[NSUserDefaults standardUserDefaults] registerDefaults:@{@"UserAgent": [CCUtility getUserAgent]}];
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    NSString *path;
    NSURL *dirGroup = [CCUtility getDirectoryGroup];
    
    NSLog(@"[LOG] Start program group -----------------");
    NSLog(@"%@", [dirGroup path]);    
    NSLog(@"[LOG] Start program application -----------");
    NSLog(@"%@", [[CCUtility getDirectoryDocuments] stringByDeletingLastPathComponent]);
    NSLog(@"[LOG] -------------------------------------");

    // create Directory Documents
    path = [CCUtility getDirectoryDocuments];
    if (![[NSFileManager defaultManager] fileExistsAtPath: path])
        [[NSFileManager defaultManager] createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];
    
    // create Directory audio => Library, Application Support, audio
    path = [CCUtility getDirectoryAudio];
    if (![[NSFileManager defaultManager] fileExistsAtPath: path])
        [[NSFileManager defaultManager] createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];

    // create Directory database Nextcloud
    path = [[dirGroup URLByAppendingPathComponent:k_appDatabaseNextcloud] path];
    if (![[NSFileManager defaultManager] fileExistsAtPath:path])
        [[NSFileManager defaultManager] createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];
    [[NSFileManager defaultManager] setAttributes:@{NSFileProtectionKey:NSFileProtectionNone} ofItemAtPath:path error:nil];

    // create Directory User Data
    path = [[dirGroup URLByAppendingPathComponent:k_appUserData] path];
    if (![[NSFileManager defaultManager] fileExistsAtPath:path])
        [[NSFileManager defaultManager] createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];
    
    // create Directory Provider Storage
    path = [CCUtility getDirectoryProviderStorage];
    if (![[NSFileManager defaultManager] fileExistsAtPath: path])
        [[NSFileManager defaultManager] createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];
    
    // create Directory Scan
    path = [[dirGroup URLByAppendingPathComponent:k_appScan] path];
    if (![[NSFileManager defaultManager] fileExistsAtPath:path])
        [[NSFileManager defaultManager] createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];
    
    // Directory Excluded From Backup
    [CCUtility addSkipBackupAttributeToItemAtURL:[[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject]];
    [CCUtility addSkipBackupAttributeToItemAtURL:[[CCUtility getDirectoryGroup] URLByAppendingPathComponent:k_DirectoryProviderStorage]];
    [CCUtility addSkipBackupAttributeToItemAtURL:[[CCUtility getDirectoryGroup] URLByAppendingPathComponent:k_appUserData]];
    
    // Verify upgrade
    if ([self upgrade]) {
    
        // Set account, if no exists clear all
        tableAccount *account = [[NCManageDatabase sharedInstance] getAccountActive];
    
        if (account == nil) {
        
            // remove all the keys Chain
            [CCUtility deleteAllChainStore];
    
            // remove all the App group key
            [[NSUserDefaults standardUserDefaults] removePersistentDomainForName:[[NSBundle mainBundle] bundleIdentifier]];

        } else {
        
            [self settingActiveAccount:account.account activeUrl:account.url activeUser:account.user activeUserID:account.userID activePassword:account.password];
        }
    }
    
#ifdef DEBUG
    NSLog(@"[LOG] Copy DB on Documents directory");
    NSString *atPathDB = [NSString stringWithFormat:@"%@/nextcloud.realm", [[dirGroup URLByAppendingPathComponent:k_appDatabaseNextcloud] path]];
    NSString *toPathDB = [NSString stringWithFormat:@"%@/nextcloud.realm", [CCUtility getDirectoryDocuments]];
    [[NSFileManager defaultManager] removeItemAtPath:toPathDB error:nil];
    [[NSFileManager defaultManager] copyItemAtPath:atPathDB toPath:toPathDB error:nil];
#endif
    
    // UserDefaults
    self.ncUserDefaults = [[NSUserDefaults alloc] initWithSuiteName:[NCBrandOptions sharedInstance].capabilitiesGroups];
    
    // Initialization Share
    self.sharesID = [NSMutableDictionary new];
    self.sharesLink = [NSMutableDictionary new];
    self.sharesUserAndGroup = [NSMutableDictionary new];
    
    // Filter fileID
    self.filterFileID = [NSMutableArray new];

    // Upload Pending In Upload (crash)
    self.sessionPendingStatusInUpload = [NSMutableArray new];
    
    // Initialization Notification
    self.listOfNotifications = [NSMutableArray new];
    
    // Background Fetch
    [application setMinimumBackgroundFetchInterval:UIApplicationBackgroundFetchIntervalMinimum];

    // Initialization List
    self.listProgressMetadata = [[NSMutableDictionary alloc] init];
    self.listMainVC = [[NSMutableDictionary alloc] init];
    
    // Firebase - Push Notification
    @try {
        [FIRApp configure];
    } @catch (NSException *exception) {
        NSLog(@"[LOG] Something went wrong while configuring Firebase");
    }
    
    // Display notification (sent via APNS)
    [UNUserNotificationCenter currentNotificationCenter].delegate = self;
    UNAuthorizationOptions authOptions = UNAuthorizationOptionAlert | UNAuthorizationOptionSound | UNAuthorizationOptionBadge;
    [[UNUserNotificationCenter currentNotificationCenter] requestAuthorizationWithOptions:authOptions completionHandler:^(BOOL granted, NSError * _Nullable error) {
    }];
    
    [application registerForRemoteNotifications];
    [FIRMessaging messaging].delegate = self;
    
    // setting Reachable in back
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

        self.reachability = [Reachability reachabilityForInternetConnection];
    
        self.lastReachability = [self.reachability isReachable];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(reachabilityChanged:) name:kReachabilityChangedNotification object:nil];
        [self.reachability startNotifier];
    });
    
    //AV Session
    [[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error:nil];
    // [[AVAudioSession sharedInstance] setActive:YES error:nil];
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
    
    // APPEARANCE: How to hide UINavigationBar 1px bottom line < iOS 11
    [[UINavigationBar appearance] setBackgroundImage:[[UIImage alloc] init] forBarPosition:UIBarPositionAny barMetrics:UIBarMetricsDefault];
    [[UINavigationBar appearance] setShadowImage:[[UIImage alloc] init]];
    [UINavigationBar appearance].translucent = NO;

    // passcode
    [[BKPasscodeLockScreenManager sharedManager] setDelegate:self];
    
    dispatch_async(dispatch_get_main_queue(), ^{
        [[BKPasscodeLockScreenManager sharedManager] showLockScreen:NO];
    });
    
    // Quick Actions
    if([[UIApplicationShortcutItem class] respondsToSelector:@selector(new)]) {
    
        [self configDynamicShortcutItems];
        
        UIApplicationShortcutItem *shortcutItem = [launchOptions objectForKeyedSubscript:UIApplicationLaunchOptionsShortcutItemKey];
        
        if (shortcutItem)
            [self handleShortCutItem:shortcutItem];
    }
        
    // Start Timer
    self.timerProcessAutoDownloadUpload = [NSTimer scheduledTimerWithTimeInterval:k_timerProcessAutoDownloadUpload target:self selector:@selector(loadAutoDownloadUpload) userInfo:nil repeats:YES];
    self.timerUpdateApplicationIconBadgeNumber = [NSTimer scheduledTimerWithTimeInterval:k_timerUpdateApplicationIconBadgeNumber target:self selector:@selector(updateApplicationIconBadgeNumber) userInfo:nil repeats:YES];

    // Fabric
    [Fabric with:@[[Crashlytics class]]];
    
    // Store review
    if ([[NCUtility sharedInstance] isSimulatorOrTestFlight] == false) {
        NCStoreReview *review = [NCStoreReview new];
        [review incrementAppRuns];
        [review showStoreReview];
    }
    
    return YES;
}

//
// L' applicazione si dimetterà dallo stato di attivo
//
- (void)applicationWillResignActive:(UIApplication *)application
{
    [_activeMain closeAllMenu];
    
    [self updateApplicationIconBadgeNumber];
}

//
// L' applicazione entrerà in primo piano (attivo solo dopo il background)
//
- (void)applicationWillEnterForeground:(UIApplication *)application
{
    // Test Maintenance
    if (self.activeAccount.length == 0 || self.maintenanceMode)
        return;
    
    NSLog(@"[LOG] Request Service Server Nextcloud");
    [[NCService sharedInstance] startRequestServicesServer];
    
    NSLog(@"[LOG] Initialize Auto upload");
    [[NCAutoUpload sharedInstance] initStateAutoUpload];
    
    NSLog(@"[LOG] Read active directory");
    [self.activeMain readFileReloadFolder];
}

//
// L' applicazione entrerà in primo piano (attivo sempre)
//
- (void)applicationDidBecomeActive:(UIApplication *)application
{
    // Test Maintenance
    if (self.activeAccount.length == 0 || self.maintenanceMode)
        return;
    
    // middelware ping
    if ([[NCBrandOptions sharedInstance] use_middlewarePing]) {
        NSLog(@"[LOG] Middleware Ping");
        [[NCService sharedInstance] middlewarePing];
    }    
}

//
// L' applicazione è entrata nello sfondo
//
- (void)applicationDidEnterBackground:(UIApplication *)application
{
    NSLog(@"[LOG] Enter in Background");
    
    [[BKPasscodeLockScreenManager sharedManager] showLockScreen:YES];
    
    if([[UIDevice currentDevice] respondsToSelector:@selector(isMultitaskingSupported)]) {
        
        __block UIBackgroundTaskIdentifier background_task;
        
        background_task = [application beginBackgroundTaskWithExpirationHandler:^ {
            
            //Clean up code. Tell the system that we are done.
            [application endBackgroundTask: background_task];
            background_task = UIBackgroundTaskInvalid;
        }];
    }
}

//
// L'applicazione terminerà
//
- (void)applicationWillTerminate:(UIApplication *)application
{    
    NSLog(@"[LOG] bye bye, Nextcloud !");
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Login =====
#pragma --------------------------------------------------------------------------------------------

- (void)openLoginView:(UIViewController *)viewController delegate:(id)delegate loginType:(NSInteger)loginType selector:(NSInteger)selector
{
    BOOL loginWebFlow = NO;
    
    @synchronized (self) {

        // only for personalized LoginWeb [customer]
        if ([NCBrandOptions sharedInstance].use_login_web_personalized) {
            
            if (!(_activeLoginWeb.isViewLoaded && _activeLoginWeb.view.window)) {
                
                _activeLoginWeb = [CCLoginWeb new];
                _activeLoginWeb.delegate = delegate;
                _activeLoginWeb.loginType = loginType;
                _activeLoginWeb.urlBase = [[NCBrandOptions sharedInstance] loginBaseUrl];
                
                dispatch_async(dispatch_get_main_queue(), ^ {
                    [_activeLoginWeb open:viewController];
                });
            }
            return;
        }
        
        // ------------------- Nextcloud -------------------------
        //
        
        // Login flow : LoginWeb
        if (loginType == k_login_Modify_Password) {
            tableAccount *account = [[NCManageDatabase sharedInstance] getAccountActive];
            if (account.loginFlow)
                loginWebFlow = YES;
        }
            
        if (loginWebFlow || selector == k_intro_signup) {
            
            if (!(_activeLoginWeb.isViewLoaded && _activeLoginWeb.view.window)) {
                
                _activeLoginWeb = [CCLoginWeb new];
                _activeLoginWeb.delegate = delegate;
                _activeLoginWeb.loginType = loginType;
                
                if (selector == k_intro_signup) {
                    _activeLoginWeb.urlBase = [[NCBrandOptions sharedInstance] linkloginPreferredProviders];
                } else {
                    _activeLoginWeb.urlBase = self.activeUrl;
                }

                dispatch_async(dispatch_get_main_queue(), ^ {
                    [_activeLoginWeb open:viewController];
                });
            }
            
        } else if ([NCBrandOptions sharedInstance].disable_intro && [NCBrandOptions sharedInstance].disable_request_login_url) {
            
            _activeLoginWeb = [CCLoginWeb new];
            _activeLoginWeb.delegate = delegate;
            _activeLoginWeb.loginType = loginType;
            _activeLoginWeb.urlBase = [[NCBrandOptions sharedInstance] loginBaseUrl];
            
            dispatch_async(dispatch_get_main_queue(), ^ {
                [_activeLoginWeb open:viewController];
            });
            
        } else {
            
            if (!(_activeLogin.isViewLoaded && _activeLogin.view.window)) {
                
                _activeLogin = [[UIStoryboard storyboardWithName:@"CCLogin" bundle:nil] instantiateViewControllerWithIdentifier:@"CCLoginNextcloud"];
                _activeLogin.delegate = delegate;
                _activeLogin.loginType = loginType;
                
                dispatch_async(dispatch_get_main_queue(), ^ {
                    [viewController presentViewController:_activeLogin animated:YES completion:nil];
                });
            }
        }
    }
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Setting Active Account for all APP =====
#pragma --------------------------------------------------------------------------------------------

- (void)settingActiveAccount:(NSString *)activeAccount activeUrl:(NSString *)activeUrl activeUser:(NSString *)activeUser activeUserID:(NSString *)activeUserID activePassword:(NSString *)activePassword
{
    self.activeAccount = activeAccount;
    self.activeUrl = activeUrl;
    self.activeUser = activeUser;
    self.activeUserID = activeUserID;
    self.activePassword = activePassword;
    
    // Setting Account to CCNetworking
    [CCNetworking sharedNetworking].delegate = [NCNetworkingMain sharedInstance];
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Push Notification =====
#pragma --------------------------------------------------------------------------------------------

- (void)subscribingNextcloudServerPushNotification
{
    // test
    if (self.activeAccount.length == 0 || self.maintenanceMode)
        return;
    
    [[NCPushNotificationEncryption sharedInstance] generatePushNotificationsKeyPair:self.activeAccount];

    NSString *pushToken = [CCUtility getPushNotificationToken];
    NSString *pushTokenHash = [[NCEndToEndEncryption sharedManager] createSHA512:pushToken];
    NSData *ncPNPublicKey = [CCUtility getPushNotificationPublicKey:self.activeAccount];
    NSString *devicePublicKey = [[NSString alloc] initWithData:ncPNPublicKey encoding:NSUTF8StringEncoding];
    
    self.pnDeviceIdentifier = nil;
    self.pnDeviceIdentifierSignature = nil;
    self.pnPublicKey = nil;

    [[OCNetworking sharedManager] subscribingPushNotificationWithAccount:self.activeAccount url:self.activeUrl pushToken:pushToken Hash:pushTokenHash devicePublicKey:devicePublicKey completion:^(NSString *account, NSString *deviceIdentifier, NSString *deviceIdentifierSignature, NSString *publicKey, NSString *message, NSInteger errorCode) {
        
        if (errorCode == 0 && [account isEqualToString:self.activeAccount]) {
            NSLog(@"[LOG] Subscribed to Push Notification server & proxy successfully.");
            self.pnDeviceIdentifier = deviceIdentifier;
            self.pnDeviceIdentifierSignature = deviceIdentifierSignature;
            self.pnPublicKey = publicKey;
        } else if (errorCode != 0) {
            NSLog(@"[LOG] Subscribed to Push Notification server & proxy error.");
        } else {
            NSLog(@"[LOG] It has been changed user during networking process, error.");
        }
    }];
}

- (void)unsubscribingNextcloudServerPushNotification
{
    // test
    if (self.activeAccount.length == 0 || self.maintenanceMode)
        return;
    
    [[OCNetworking sharedManager] unsubscribingPushNotificationWithAccount:self.activeAccount url:self.activeUrl deviceIdentifier:self.pnDeviceIdentifier deviceIdentifierSignature:self.pnDeviceIdentifierSignature publicKey:self.pnPublicKey completion:^(NSString *account, NSString *message, NSInteger errorCode) {
       
        if (errorCode == 0) {
            NSLog(@"[LOG] Unsubscribed to Push Notification server & proxy successfully.");
        } else if (errorCode != 0) {
            NSLog(@"[LOG] Unsubscribed to Push Notification server & proxy error.");
        } else {
            NSLog(@"[LOG] It has been changed user during networking process, error.");
        }
    }];
}

-(void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler
{
    //Called when a notification is delivered to a foreground app.
    completionHandler(UNNotificationPresentationOptionAlert);
}

-(void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(nonnull UNNotificationResponse *)response withCompletionHandler:(nonnull void (^)(void))completionHandler
{
    /*
    NSString *message = [response.notification.request.content.userInfo objectForKey:@"subject"];
    
    if (message && [NCPushNotificationEncryption sharedInstance].ncPNPrivateKey) {
        
        NSData *privateKey = [CCUtility getPushNotificationPrivateKey];
        NSString *decryptedMessage = [[NCPushNotificationEncryption sharedInstance] decryptPushNotification:message withDevicePrivateKey:privateKey];
        if (decryptedMessage) {
           
            NSData *data = [decryptedMessage dataUsingEncoding:NSUTF8StringEncoding];
            NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
            NSString *app = [json objectForKey:@"app"];
            
            if ([app isEqualToString:@"spreed"] == NO) {
                
                UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
                UINavigationController *navigationControllerMore;
                UITabBarController *tabBarController;
                
                if (splitViewController.isCollapsed) {
                    
                    tabBarController = splitViewController.viewControllers.firstObject;
                    for (UINavigationController *nvc in tabBarController.viewControllers) {
                        
                        if ([nvc.topViewController isKindOfClass:[CCDetail class]])
                            [nvc popToRootViewControllerAnimated:NO];
                        
                        if ([nvc.topViewController isKindOfClass:[CCMore class]])
                            navigationControllerMore = nvc;
                    }
                    
                } else {
                    
                    UINavigationController *nvcDetail = splitViewController.viewControllers.lastObject;
                    [nvcDetail popToRootViewControllerAnimated:NO];
                    
                    tabBarController = splitViewController.viewControllers.firstObject;
                }
                
                if (tabBarController)
                    [tabBarController setSelectedIndex: k_tabBarApplicationIndexMore];
                if (navigationControllerMore)
                    [navigationControllerMore performSegueWithIdentifier:@"segueActivity" sender:navigationControllerMore];
            }
        }
    }
    */
    completionHandler();
}

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
{
    NSLog(@"Push notification: %@", userInfo);
    
    NSString *message = [userInfo objectForKey:@"subject"];
    if (message && [CCUtility getPushNotificationPrivateKey:self.activeAccount]) {
        NSString *decryptedMessage = [[NCPushNotificationEncryption sharedInstance] decryptPushNotification:message withDevicePrivateKey: [CCUtility getPushNotificationPrivateKey:self.activeAccount]];
        if (decryptedMessage) {
            UNMutableNotificationContent *content = [UNMutableNotificationContent new];
            content.body = decryptedMessage;
            content.sound = [UNNotificationSound defaultSound];
            NSString *identifier = [NSString stringWithFormat:@"Notification-%@", [NSDate new]];
            UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:0.1 repeats:NO];
            UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:identifier content:content trigger:trigger];
            [[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:nil];
        }
    }
}

#pragma FIREBASE

- (void)messaging:(FIRMessaging *)messaging didReceiveRegistrationToken:(NSString *)fcmToken
{
    // test
    if (self.activeAccount.length == 0 || self.maintenanceMode)
        return;
    
    NSLog(@"FCM registration token: %@", fcmToken);
    [CCUtility setPushNotificationToken:fcmToken];
    
    [self subscribingNextcloudServerPushNotification];
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Quick Actions - ShotcutItem =====
#pragma --------------------------------------------------------------------------------------------

- (void)configDynamicShortcutItems
{
    NSString *bundleId = [NSBundle mainBundle].bundleIdentifier;
    
    UIApplicationShortcutIcon *shortcutMediaIcon = [UIApplicationShortcutIcon iconWithTemplateImageName:@"media"];
    UIApplicationShortcutItem *shortcutMedia = [[UIApplicationShortcutItem alloc] initWithType:[NSString stringWithFormat:@"%@.media", bundleId] localizedTitle:NSLocalizedString(@"_media_", nil) localizedSubtitle:nil icon:shortcutMediaIcon userInfo:nil];
   
    // add the array to our app
    if (shortcutMedia)
        [UIApplication sharedApplication].shortcutItems = @[shortcutMedia];
}

- (void)application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler
{
    BOOL handledShortCutItem = [self handleShortCutItem:shortcutItem];
    
    completionHandler(handledShortCutItem);
}

- (BOOL)handleShortCutItem:(UIApplicationShortcutItem *)shortcutItem
{
    BOOL handled = NO;
    
    NSString *bundleId = [NSBundle mainBundle].bundleIdentifier;
    NSString *shortcutMedia = [NSString stringWithFormat:@"%@.media", bundleId];
    
    if ([shortcutItem.type isEqualToString:shortcutMedia] && self.activeAccount) {
        
        dispatch_async(dispatch_get_main_queue(), ^{

            UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;

            if (splitViewController.isCollapsed) {
            
                UITabBarController *tbc = splitViewController.viewControllers.firstObject;
                for (UINavigationController *nvc in tbc.viewControllers) {
                
                    if ([nvc.topViewController isKindOfClass:[CCDetail class]])
                        [nvc popToRootViewControllerAnimated:NO];
                }
            
                [tbc setSelectedIndex: k_tabBarApplicationIndexMedia];

            } else {
            
                UINavigationController *nvcDetail = splitViewController.viewControllers.lastObject;
                [nvcDetail popToRootViewControllerAnimated:NO];
            
                UITabBarController *tbc = splitViewController.viewControllers.firstObject;
                [tbc setSelectedIndex: k_tabBarApplicationIndexMedia];
            }
        });
        
        handled = YES;
    }
    
    return handled;
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== StatusBar & ApplicationIconBadgeNumber =====
#pragma --------------------------------------------------------------------------------------------

- (void)messageNotification:(NSString *)title description:(NSString *)description visible:(BOOL)visible delay:(NSTimeInterval)delay type:(TWMessageBarMessageType)type errorCode:(NSInteger)errorcode
{
    static NSInteger errorCodePrev = 0;
    
    dispatch_async(dispatch_get_main_queue(), ^{
        
        if (visible) {
            
            switch (errorcode) {
                    
                // JDStatusBarNotification
                case kCFURLErrorNotConnectedToInternet :
                    
                    if (errorCodePrev != errorcode)
                        [JDStatusBarNotification showWithStatus:NSLocalizedString(title, nil) dismissAfter:delay styleName:JDStatusBarStyleDefault];
                    
                    errorCodePrev = errorcode;
                    break;
                    
                // TWMessageBarManager
                default:
                    
                    if (description.length > 0) {
                        
                        [TWMessageBarManager sharedInstance].styleSheet = self;
                        [[TWMessageBarManager sharedInstance] showMessageWithTitle:[NSString stringWithFormat:@"%@\n", NSLocalizedString(title, nil)] description:NSLocalizedString(description, nil) type:type duration:delay];
                    }
                    break;
            }
                        
        } else {
            
            [[TWMessageBarManager sharedInstance] hideAllAnimated:YES];
        }
    });
}

- (UIColor *)backgroundColorForMessageType:(TWMessageBarMessageType)type
{
    UIColor *backgroundColor = nil;
    switch (type)
    {
        case TWMessageBarMessageTypeError:
            backgroundColor = [UIColor colorWithRed:1.0 green:0.0 blue:0.0 alpha:0.90];
            break;
        case TWMessageBarMessageTypeSuccess:
            backgroundColor = [UIColor colorWithRed:0.588 green:0.797 blue:0.000 alpha:0.90];
            break;
        case TWMessageBarMessageTypeInfo:
            backgroundColor = [NCBrandColor sharedInstance].brand;
            break;
        default:
            break;
    }
    return backgroundColor;
}

- (UIColor *)strokeColorForMessageType:(TWMessageBarMessageType)type
{
    UIColor *strokeColor = nil;
    switch (type)
    {
        case TWMessageBarMessageTypeError:
            strokeColor = [UIColor colorWithRed:1.0 green:0.0 blue:0.0 alpha:1.0];
            break;
        case TWMessageBarMessageTypeSuccess:
            strokeColor = [UIColor colorWithRed:0.0 green:1.0 blue:0.0 alpha:1.0];
            break;
        case TWMessageBarMessageTypeInfo:
            strokeColor = [UIColor colorWithRed:0.0 green:0.0 blue:1.0 alpha:1.0];
            break;
        default:
            break;
    }
    return strokeColor;
}

- (UIImage *)iconImageForMessageType:(TWMessageBarMessageType)type
{
    UIImage *iconImage = nil;
    switch (type)
    {
        case TWMessageBarMessageTypeError:
            iconImage = [UIImage imageNamed:@"icon-error.png"];
            break;
        case TWMessageBarMessageTypeSuccess:
            iconImage = [UIImage imageNamed:@"icon-success.png"];
            break;
        case TWMessageBarMessageTypeInfo:
            iconImage = [UIImage imageNamed:@"icon-info.png"];
            break;
        default:
            break;
    }
    return iconImage;
}

- (void)updateApplicationIconBadgeNumber
{
    if (self.activeAccount.length == 0 || self.maintenanceMode)
        return;
    
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        
        NSInteger counterDownload = [[[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"status = %d OR status == %d OR status == %d", k_metadataStatusWaitDownload, k_metadataStatusInDownload, k_metadataStatusDownloading] sorted:@"fileName" ascending:true] count];
        NSInteger counterUpload = [[[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"status == %d OR status == %d OR status == %d", k_metadataStatusWaitUpload, k_metadataStatusInUpload, k_metadataStatusUploading] sorted:@"fileName" ascending:true] count];

        NSInteger total = counterDownload + counterUpload;
        
        dispatch_async(dispatch_get_main_queue(), ^{
            
            [UIApplication sharedApplication].applicationIconBadgeNumber = total;
            
            UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
            
            if ([[splitViewController.viewControllers firstObject] isKindOfClass:[UITabBarController class]]) {
                
                UITabBarController *tbc = [splitViewController.viewControllers firstObject];
                
                UITabBarItem *tbItem = [tbc.tabBar.items objectAtIndex:0];
                
                if (total > 0) {
                    [tbItem setBadgeValue:[NSString stringWithFormat:@"%li", (unsigned long)total]];
                } else {
                    [tbItem setBadgeValue:nil];
                }
            }
        });
    });
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== TabBarController =====
#pragma --------------------------------------------------------------------------------------------

- (void)createTabBarController:(UITabBarController *)tabBarController
{
    UITabBarItem *item;
    NSLayoutConstraint *constraint;
    CGFloat multiplier = 0;
    CGFloat safeAreaBottom = 0;
    
    if (@available(iOS 11, *)) {
        UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
        if (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight) {
            safeAreaBottom = [UIApplication sharedApplication].delegate.window.safeAreaInsets.right/2;
            if (safeAreaBottom > 0) safeAreaBottom -= 5;
        } else {
            safeAreaBottom = [UIApplication sharedApplication].delegate.window.safeAreaInsets.bottom/2;
        }
    }
    
    [self aspectTabBar:tabBarController.tabBar hidden:NO];
    
    // File
    item = [tabBarController.tabBar.items objectAtIndex: k_tabBarApplicationIndexFile];
    [item setTitle:NSLocalizedString(@"_home_", nil)];
    item.image = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarFiles"] multiplier:2 color:[NCBrandColor sharedInstance].brandElement];
    item.selectedImage = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarFiles"] multiplier:2 color:[NCBrandColor sharedInstance].brandElement];
    
    // Favorites
    item = [tabBarController.tabBar.items objectAtIndex: k_tabBarApplicationIndexFavorite];
    [item setTitle:NSLocalizedString(@"_favorites_", nil)];
    item.image = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarFavorites"] multiplier:2 color:[NCBrandColor sharedInstance].brandElement];
    item.selectedImage = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarFavorites"] multiplier:2 color:[NCBrandColor sharedInstance].brandElement];
    
    // (PLUS)
    item = [tabBarController.tabBar.items objectAtIndex: k_tabBarApplicationIndexPlusHide];
    item.title = @"";
    item.image = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarPlus"] multiplier:3 color:[UIColor clearColor]];
    item.enabled = false;
    
    // Media
    item = [tabBarController.tabBar.items objectAtIndex: k_tabBarApplicationIndexMedia];
    [item setTitle:NSLocalizedString(@"_media_", nil)];
    item.image = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarMedia"] multiplier:2 color:[NCBrandColor sharedInstance].brandElement];
    item.selectedImage = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarMedia"] multiplier:2 color:[NCBrandColor sharedInstance].brandElement];
    
    // More
    item = [tabBarController.tabBar.items objectAtIndex: k_tabBarApplicationIndexMore];
    [item setTitle:NSLocalizedString(@"_more_", nil)];
    item.image = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarMore"] multiplier:2 color:[NCBrandColor sharedInstance].brandElement];
    item.selectedImage = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarMore"] multiplier:2 color:[NCBrandColor sharedInstance].brandElement];
    
    // Plus Button
    UIImage *buttonImage = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarPlus"] multiplier:3 color:[NCBrandColor sharedInstance].brandElement];
    UIButton *buttonPlus = [UIButton buttonWithType:UIButtonTypeCustom];
    buttonPlus.tag = 99;
    [buttonPlus setBackgroundImage:buttonImage forState:UIControlStateNormal];
    [buttonPlus setBackgroundImage:buttonImage forState:UIControlStateHighlighted];
    [buttonPlus addTarget:self action:@selector(handleTouchTabbarCenter:) forControlEvents:UIControlEventTouchUpInside];
    
    [buttonPlus setTranslatesAutoresizingMaskIntoConstraints:NO];
    [tabBarController.tabBar addSubview:buttonPlus];
    
    multiplier = 1.0;
    // X
    constraint =[NSLayoutConstraint constraintWithItem:buttonPlus attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:tabBarController.tabBar attribute:NSLayoutAttributeCenterX multiplier:multiplier constant:0];
    [tabBarController.view addConstraint:constraint];
    // Y
    if (safeAreaBottom == 0) {
        constraint = [NSLayoutConstraint constraintWithItem:buttonPlus attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual toItem:tabBarController.tabBar attribute:NSLayoutAttributeCenterY multiplier:multiplier constant:0];
    } else {
        constraint = [NSLayoutConstraint constraintWithItem:buttonPlus attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:tabBarController.tabBar attribute:NSLayoutAttributeCenterY multiplier:1.0 constant:5];
    }
    [tabBarController.view addConstraint:constraint];
    
    multiplier = 0.8 * (tabBarController.tabBar.frame.size.height - safeAreaBottom) / tabBarController.tabBar.frame.size.height;
    // Width
    constraint = [NSLayoutConstraint constraintWithItem:buttonPlus attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:tabBarController.tabBar attribute:NSLayoutAttributeHeight multiplier:multiplier constant:0];
    [tabBarController.view addConstraint:constraint];
    // Height
    constraint = [NSLayoutConstraint constraintWithItem:buttonPlus attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:tabBarController.tabBar attribute:NSLayoutAttributeHeight multiplier:multiplier constant:0];
    [tabBarController.view addConstraint:constraint];
}

- (void)aspectNavigationControllerBar:(UINavigationBar *)nav online:(BOOL)online hidden:(BOOL)hidden
{
    nav.translucent = NO;
    nav.barTintColor = [NCBrandColor sharedInstance].brand;
    nav.tintColor = [NCBrandColor sharedInstance].brandText;
    [nav setTitleTextAttributes:@{NSForegroundColorAttributeName : [NCBrandColor sharedInstance].brandText}];
    // Change bar bottom line shadow
    nav.shadowImage = [CCGraphics generateSinglePixelImageWithColor:[NCBrandColor sharedInstance].brand];
    
    if (!online)
        [nav setTitleTextAttributes:@{NSForegroundColorAttributeName : [NCBrandColor sharedInstance].connectionNo}];
    
    nav.hidden = hidden;
    
    [nav setAlpha:1];
}

- (void)aspectTabBar:(UITabBar *)tab hidden:(BOOL)hidden
{
    tab.translucent = NO;
    tab.barTintColor = [NCBrandColor sharedInstance].tabBar;
    tab.tintColor = [NCBrandColor sharedInstance].brandElement;
    
    tab.hidden = hidden;
    
    [tab setAlpha:1];
}

- (void)plusButtonVisibile:(BOOL)visible
{
    UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
    UITabBarController *tabBarController = [splitViewController.viewControllers firstObject];
    
    UIButton *buttonPlus = [tabBarController.view viewWithTag:99];
    
    UIImage *buttonImage = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarPlus"] multiplier:3 color:[NCBrandColor sharedInstance].brandElement];
    [buttonPlus setBackgroundImage:buttonImage forState:UIControlStateNormal];
    [buttonPlus setBackgroundImage:buttonImage forState:UIControlStateHighlighted];
    
    if (buttonPlus) {

        if (visible) {
            
            buttonPlus.hidden = false;
        
        } else {
            
            buttonPlus.hidden = true;
        }
    }
}

- (void)handleTouchTabbarCenter:(id)sender
{
    // Test Maintenance
    if (self.maintenanceMode)
        return;
    
    UIView *view = [(UIButton *)sender superview];
    
    NCCreateMenuAdd *menuAdd = [[NCCreateMenuAdd alloc] initWithThemingColor:[NCBrandColor sharedInstance].brandElement];
    [menuAdd createMenuWithViewController:self.window.rootViewController view:view];
}

- (void)selectedTabBarController:(NSInteger)index
{
    UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
    
    if (splitViewController.isCollapsed) {
        
        UITabBarController *tbc = splitViewController.viewControllers.firstObject;
        for (UINavigationController *nvc in tbc.viewControllers) {
            
            if ([nvc.topViewController isKindOfClass:[CCDetail class]])
                [nvc popToRootViewControllerAnimated:NO];
        }
        
        [tbc setSelectedIndex: index];
        
    } else {
        
        UINavigationController *nvcDetail = splitViewController.viewControllers.lastObject;
        [nvcDetail popToRootViewControllerAnimated:NO];
        
        UITabBarController *tbc = splitViewController.viewControllers.firstObject;
        [tbc setSelectedIndex: index];
    }
}

- (NSString *)getTabBarControllerActiveServerUrl
{
    UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
    UITabBarController *tabBarController = [splitViewController.viewControllers firstObject];

    NSString *serverUrl = [CCUtility getHomeServerUrlActiveUrl:self.activeUrl];
    NSInteger index = tabBarController.selectedIndex;
    
    // select active serverUrl
    if (index == k_tabBarApplicationIndexFile) {
        serverUrl = self.activeMain.serverUrl;
    } else if (index == k_tabBarApplicationIndexFavorite) {
        if (self.activeFavorites.serverUrl)
            serverUrl = self.activeFavorites.serverUrl;
    } else if (index == k_tabBarApplicationIndexMedia) {
        serverUrl = [[NCManageDatabase sharedInstance] getAccountAutoUploadPath:self.activeUrl];
    }
    
    return serverUrl;
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Theming Color =====
#pragma --------------------------------------------------------------------------------------------

- (void)settingThemingColorBrand
{
    if (self.activeAccount.length == 0 || self.maintenanceMode)
        return;
    
    if ([NCBrandOptions sharedInstance].use_themingColor) {
        
        tableCapabilities *capabilities = [[NCManageDatabase sharedInstance] getCapabilitesWithAccount:self.activeAccount];

        [CCGraphics settingThemingColor:capabilities.themingColor themingColorElement:capabilities.themingColorElement themingColorText:capabilities.themingColorText];
            
    } else {
    
        [NCBrandColor sharedInstance].brand = [NCBrandColor sharedInstance].customer;
        [NCBrandColor sharedInstance].brandElement = [NCBrandColor sharedInstance].customer;
        [NCBrandColor sharedInstance].brandText = [NCBrandColor sharedInstance].customerText;
    }
    
    [[NSNotificationCenter defaultCenter] postNotificationOnMainThreadName:@"changeTheming" object:nil];
}

- (void)changeTheming:(UIViewController *)vc
{
    // Change Navigation & TabBar color
    vc.navigationController.navigationBar.barTintColor = [NCBrandColor sharedInstance].brand;
    vc.tabBarController.tabBar.tintColor = [NCBrandColor sharedInstance].brandElement;
    // Change bar bottom line shadow
    vc.navigationController.navigationBar.shadowImage = [CCGraphics generateSinglePixelImageWithColor:[NCBrandColor sharedInstance].brand];
    
    // Change button Plus
    UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
    UITabBarController *tabBarController = [splitViewController.viewControllers firstObject];
    
    UIButton *button = [tabBarController.view viewWithTag:99];
    UIImage *buttonImage = [CCGraphics changeThemingColorImage:[UIImage imageNamed:@"tabBarPlus"] multiplier:3 color:[NCBrandColor sharedInstance].brandElement];
    
    [button setBackgroundImage:buttonImage forState:UIControlStateNormal];
    [button setBackgroundImage:buttonImage forState:UIControlStateHighlighted];
    
    // Tint Color GLOBAL WINDOW
    [self.window setTintColor:[NCBrandColor sharedInstance].textView];
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Manager Passcode =====
#pragma --------------------------------------------------------------------------------------------

- (BOOL)lockScreenManagerShouldShowLockScreen:(BKPasscodeLockScreenManager *)aManager
{
    // ServerUrl active
    NSString *serverUrl = self.activeMain.serverUrl;
    BOOL isBlockZone = false;
    
    // fermiamo la data della sessione
    self.sessionePasscodeLock = nil;
    
    // se il block code è a zero esci con NON attivare la richiesta password
    if ([[CCUtility getBlockCode] length] == 0) return NO;
    
    // se non c'è attivo un account esci con NON attivare la richiesta password
    if ([self.activeAccount length] == 0) return NO;
    
    // se non è attivo il OnlyLockDir esci con NON attivare la richiesta password
    if (serverUrl && _activeUrl) {
        
        while (![serverUrl isEqualToString:[CCUtility getHomeServerUrlActiveUrl:_activeUrl]]) {
            
            tableDirectory *directory = [[NCManageDatabase sharedInstance] getTableDirectoryWithPredicate:[NSPredicate predicateWithFormat:@"account == %@ AND serverUrl == %@", self.activeAccount, serverUrl]];
            
            if (directory.lock) {
                isBlockZone = true;
                break;
            } else {
                serverUrl = [CCUtility deletingLastPathComponentFromServerUrl:serverUrl];
                if (serverUrl == self.activeUrl)
                    break;
            }
        }
    }
    
    if ([CCUtility getOnlyLockDir] && !isBlockZone) return NO;
    
    return YES;
}

- (UIViewController *)lockScreenManagerPasscodeViewController:(BKPasscodeLockScreenManager *)aManager
{
    CCBKPasscode *viewController = [[CCBKPasscode alloc] initWithNibName:nil bundle:nil];
    viewController.type = BKPasscodeViewControllerCheckPasscodeType;
    viewController.delegate = self;
    viewController.title = [NCBrandOptions sharedInstance].brand;
    viewController.fromType = CCBKPasscodeFromLockScreen;
    viewController.inputViewTitlePassword = YES;
    
    if ([CCUtility getSimplyBlockCode]) {
        
        viewController.passcodeStyle = BKPasscodeInputViewNumericPasscodeStyle;
        viewController.passcodeInputView.maximumLength = 6;
        
    } else {
        
        viewController.passcodeStyle = BKPasscodeInputViewNormalPasscodeStyle;
        viewController.passcodeInputView.maximumLength = 64;
    }

    viewController.touchIDManager = [[BKTouchIDManager alloc] initWithKeychainServiceName: k_serviceShareKeyChain];
    viewController.touchIDManager.promptText = NSLocalizedString(@"_scan_fingerprint_", nil);

    UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];
    return navigationController;
}

- (void)passcodeViewController:(CCBKPasscode *)aViewController didFinishWithPasscode:(NSString *)aPasscode
{
    [aViewController dismissViewControllerAnimated:YES completion:nil];
    
    // is a lock screen
    if (aViewController.fromType == CCBKPasscodeFromLockScreen) {
        
        [aViewController dismissViewControllerAnimated:YES completion:nil];
        
        // start session Passcode Lock
        BOOL isBlockZone = false;
        NSString *serverUrl = self.activeMain.serverUrl;
        
        while (![serverUrl isEqualToString:[CCUtility getHomeServerUrlActiveUrl:_activeUrl]]) {
            
            tableDirectory *directory = [[NCManageDatabase sharedInstance] getTableDirectoryWithPredicate:[NSPredicate predicateWithFormat:@"account == %@ AND serverUrl == %@", self.activeAccount, serverUrl]];
            
            if (directory.lock) {
                isBlockZone = true;
                break;
            } else {
                serverUrl = [CCUtility deletingLastPathComponentFromServerUrl:serverUrl];
                if (serverUrl == self.activeUrl)
                    break;
            }
        }
        if (isBlockZone)
            self.sessionePasscodeLock = [NSDate date];
     }
}

- (void)passcodeViewController:(CCBKPasscode *)aViewController authenticatePasscode:(NSString *)aPasscode resultHandler:(void (^)(BOOL))aResultHandler
{
    if (aViewController.fromType == CCBKPasscodeFromLockScreen || aViewController.fromType == CCBKPasscodeFromInit) {
        if ([aPasscode isEqualToString:[CCUtility getBlockCode]]) {
            //self.lockUntilDate = nil;
            //self.failedAttempts = 0;
            aResultHandler(YES);
        } else aResultHandler(NO);
    } else aResultHandler(YES);
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== reachabilityChanged =====
#pragma --------------------------------------------------------------------------------------------

-(void)reachabilityChanged:(SCNetworkReachabilityFlags)flags
{
    if ([self.reachability isReachable]) {
        
        if (self.lastReachability == NO) {
            
            NSLog(@"[LOG] Request Service Server Nextcloud");
            [[NCService sharedInstance] startRequestServicesServer];
        }
        
        NSLog(@"[LOG] Reachability Changed: Reachable");
        
        self.lastReachability = YES;
        
    } else {
        
        if (self.lastReachability == YES) {
            [self messageNotification:@"_network_not_available_" description:nil visible:YES delay:k_dismissAfterSecond type:TWMessageBarMessageTypeInfo errorCode:kCFURLErrorNotConnectedToInternet];
        }
        
        NSLog(@"[LOG] Reachability Changed: NOT Reachable");
        
        self.lastReachability = NO;
    }
    
    if ([self.reachability isReachableViaWiFi]) NSLog(@"[LOG] Reachability Changed: WiFi");
    if ([self.reachability isReachableViaWWAN]) NSLog(@"[LOG] Reachability Changed: WWAn");
    
    [[NSNotificationCenter defaultCenter] postNotificationOnMainThreadName:@"setTitleMain" object:nil];
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Fetch =====
#pragma --------------------------------------------------------------------------------------------

- (void)application:(UIApplication *)application performFetchWithCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
{
    // Test Maintenance
    if (self.activeAccount.length == 0 || self.maintenanceMode) {
        completionHandler(UIBackgroundFetchResultNoData);
        return;
    }
    
    NSLog(@"[LOG] Start perform Fetch With Completion Handler");
    
    // Verify new photo
    [[NCAutoUpload sharedInstance] initStateAutoUpload];
    
    // after 20 sec
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 20 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
        
        NSArray *records = [[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"session != ''"] sorted:nil ascending:NO];
        
        if ([records count] > 0) {
            completionHandler(UIBackgroundFetchResultNewData);
        } else {
            completionHandler(UIBackgroundFetchResultNoData);
        }
        
        NSLog(@"[LOG] End 20 sec. perform Fetch With Completion Handler");
    });
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Operation Networking & Session =====
#pragma --------------------------------------------------------------------------------------------

//
// Method called by the system when all the background task has end
//
- (void)application:(UIApplication *)application handleEventsForBackgroundURLSession:(NSString *)identifier completionHandler:(void (^)(void))completionHandler
{
    NSLog(@"[LOG] Start handle Events For Background URLSession: %@", identifier);
    
    // after 20 sec
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 20 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
        
        self.backgroundSessionCompletionHandler = completionHandler;
        void (^completionHandler)() = self.backgroundSessionCompletionHandler;
        self.backgroundSessionCompletionHandler = nil;
        completionHandler();
        
        NSLog(@"[LOG] End 20 sec. Start handle Events For Background URLSession: %@", identifier);
    });
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Process Load Download/Upload < k_timerProcess seconds > =====
#pragma --------------------------------------------------------------------------------------------

- (void)loadAutoDownloadUpload
{
    if (self.activeAccount.length == 0 || self.maintenanceMode)
        return;
    
    tableMetadata *metadataForUpload, *metadataForDownload;
    long counterDownload = 0, counterUpload = 0;
    NSUInteger sizeDownload = 0, sizeUpload = 0;
    BOOL isE2EE = false;
    
    long maxConcurrentOperationDownloadUpload = k_maxConcurrentOperation;
    
    // Detect E2EE
    NSString *saveserverUrl = @"";
    NSArray *metadatasForE2EE = [[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"status != %d", k_metadataStatusNormal] sorted:@"serverUrl" ascending:NO];
    for (tableMetadata *metadata in metadatasForE2EE) {
        if (![saveserverUrl isEqualToString:metadata.serverUrl]) {
            saveserverUrl = metadata.serverUrl;
            if ([[NCManageDatabase sharedInstance] getTableDirectoryWithPredicate:[NSPredicate predicateWithFormat:@"account == %@ AND serverUrl == %@ AND e2eEncrypted == 1", metadata.account, metadata.serverUrl]] != nil) {
                isE2EE = true;
                break;
            }
        }
    }
    
    // E2EE : not in background
    if ([[UIApplication sharedApplication] applicationState] == UIApplicationStateBackground && isE2EE) {
        return;
    }
    
    // E2EE : only 1 operation
    if (isE2EE) {
        maxConcurrentOperationDownloadUpload = 1;
    }
    
    // Stop Timer
    [_timerProcessAutoDownloadUpload invalidate];
    NSArray *metadatasDownload = [[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"status == %d OR status == %d", k_metadataStatusInDownload, k_metadataStatusDownloading] sorted:nil ascending:true];
    NSArray *metadatasUpload = [[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"status == %d OR status == %d", k_metadataStatusInUpload, k_metadataStatusUploading] sorted:nil ascending:true];
    
    // Counter
    counterDownload = [metadatasDownload count];
    counterUpload = [metadatasUpload count];
    
    // Size
    for (tableMetadata *metadata in metadatasDownload) {
        sizeDownload = sizeDownload + metadata.size;
    }
    for (tableMetadata *metadata in metadatasUpload) {
        sizeUpload = sizeUpload + metadata.size;
    }
    
    NSLog(@"%@", [NSString stringWithFormat:@"[LOG] -PROCESS-AUTO-UPLOAD- | Download %ld - %@ | Upload %ld - %@", counterDownload, [CCUtility transformedSize:sizeDownload], counterUpload, [CCUtility transformedSize:sizeUpload]]);
    
    // ------------------------- <selector Download> -------------------------
    
    while (counterDownload < maxConcurrentOperationDownloadUpload) {
        
        metadataForDownload = [[NCManageDatabase sharedInstance] getMetadataWithPredicate:[NSPredicate predicateWithFormat:@"status == %d", k_metadataStatusWaitDownload] sorted:@"session" ascending:YES];
        if (metadataForDownload) {
            
            metadataForDownload.status = k_metadataStatusInDownload;
            tableMetadata *metadata = [[NCManageDatabase sharedInstance] addMetadata:metadataForDownload];
            
            [[CCNetworking sharedNetworking] downloadFile:metadata taskStatus:k_taskStatusResume];
            
            counterDownload++;
            sizeDownload = sizeDownload + metadata.size;
        } else {
            break;
        }
    }
    
    // ------------------------- <selector Upload> -------------------------
    
    while (counterUpload < maxConcurrentOperationDownloadUpload) {
        
        if (sizeUpload > k_maxSizeOperationUpload) {
            break;
        }
        
        metadataForUpload = [[NCManageDatabase sharedInstance] getMetadataWithPredicate:[NSPredicate predicateWithFormat:@"sessionSelector == %@ AND status == %d", selectorUploadFile, k_metadataStatusWaitUpload] sorted:@"session" ascending:YES];
        if (metadataForUpload) {
            
            if ([metadataForUpload.session isEqualToString:k_upload_session_extension]) {
                metadataForUpload.session = k_upload_session;
            }
            
            metadataForUpload.status = k_metadataStatusInUpload;
            tableMetadata *metadata = [[NCManageDatabase sharedInstance] addMetadata:metadataForUpload];
            
            [[CCNetworking sharedNetworking] uploadFile:metadata taskStatus:k_taskStatusResume];
            
            counterUpload++;
            sizeUpload = sizeUpload + metadata.size;
        } else {
            break;
        }
    }
    
    // ------------------------- <selector Auto Upload> -------------------------
    
    while (counterUpload < maxConcurrentOperationDownloadUpload) {
        
        if (sizeUpload > k_maxSizeOperationUpload) {
            break;
        }
        
        metadataForUpload = [[NCManageDatabase sharedInstance] getMetadataWithPredicate:[NSPredicate predicateWithFormat:@"sessionSelector == %@ AND status == %d", selectorUploadAutoUpload, k_metadataStatusWaitUpload] sorted:@"session" ascending:YES];
        if (metadataForUpload) {
            
            metadataForUpload.status = k_metadataStatusInUpload;
            tableMetadata *metadata = [[NCManageDatabase sharedInstance] addMetadata:metadataForUpload];
            
            [[CCNetworking sharedNetworking] uploadFile:metadata taskStatus:k_taskStatusResume];
            
            counterUpload++;
            sizeUpload = sizeUpload + metadata.size;
        } else {
            break;
        }
    }
    
    // ------------------------- <selector Auto Upload All> ----------------------
    
    // Verify num error k_maxErrorAutoUploadAll after STOP (100)
    NSArray *metadatas = [[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"sessionSelector == %@ AND status == %i", selectorUploadAutoUploadAll, k_metadataStatusUploadError] sorted:nil ascending:NO];
    NSInteger errorCount = [metadatas count];
    
    if (errorCount >= k_maxErrorAutoUploadAll) {
        
        [self messageNotification:@"_error_" description:@"_too_errors_automatic_all_" visible:YES delay:k_dismissAfterSecond type:TWMessageBarMessageTypeError errorCode:k_CCErrorInternalError];
        
    } else {
        
        while (counterUpload < maxConcurrentOperationDownloadUpload) {
            
            if (sizeUpload > k_maxSizeOperationUpload) {
                break;
            }
            
            metadataForUpload = [[NCManageDatabase sharedInstance] getMetadataWithPredicate:[NSPredicate predicateWithFormat:@"sessionSelector == %@ AND status == %d", selectorUploadAutoUploadAll, k_metadataStatusWaitUpload] sorted:@"session" ascending:YES];
            if (metadataForUpload) {
                
                metadataForUpload.status = k_metadataStatusInUpload;
                tableMetadata *metadata = [[NCManageDatabase sharedInstance] addMetadata:metadataForUpload];
                
                [[CCNetworking sharedNetworking] uploadFile:metadata taskStatus:k_taskStatusResume];
                
                counterUpload++;
                sizeUpload = sizeUpload + metadata.size;
            } else {
                break;
            }
        }
    }
    
    // No Download/upload available ? --> remove errors for retry
    //
    if (counterDownload+counterUpload < maxConcurrentOperationDownloadUpload+1) {
        
        NSArray *metadatas = [[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"status == %d OR status == %d", k_metadataStatusDownloadError, k_metadataStatusUploadError] sorted:nil ascending:NO];
        for (tableMetadata *metadata in metadatas) {
            
            if (metadata.status == k_metadataStatusDownloadError)
                metadata.status = k_metadataStatusWaitDownload;
            else if (metadata.status == k_metadataStatusUploadError)
                metadata.status = k_metadataStatusWaitUpload;
            
            (void)[[NCManageDatabase sharedInstance] addMetadata:metadata];
        }
    }
    
    // Verify internal error download (lost task)
    //
    NSArray *matadatasInDownloading = [[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"session != %@ AND status == %d", k_download_session_extension, k_metadataStatusDownloading] sorted:nil ascending:true];
    for (tableMetadata *metadata in matadatasInDownloading) {
        
        NSURLSession *session = [[CCNetworking sharedNetworking] getSessionfromSessionDescription:metadata.session];
        
        [session getTasksWithCompletionHandler:^(NSArray *dataTasks, NSArray *uploadTasks, NSArray *downloadTasks) {
            
            NSURLSessionTask *findTask;
            
            for (NSURLSessionTask *task in downloadTasks) {
                if (task.taskIdentifier == metadata.sessionTaskIdentifier) {
                    findTask = task;
                }
            }
            
            if (!findTask) {
                
                metadata.sessionTaskIdentifier = k_taskIdentifierDone;
                metadata.status = k_metadataStatusWaitDownload;
                
                (void)[[NCManageDatabase sharedInstance] addMetadata:metadata];
            }
        }];
    }
    
    // Verify internal error upload (lost task)
    //
    NSArray *metadatasUploading = [[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"session != %@ AND status == %d", k_upload_session_extension, k_metadataStatusUploading] sorted:nil ascending:true];
    for (tableMetadata *metadata in metadatasUploading) {
        
        NSURLSession *session = [[CCNetworking sharedNetworking] getSessionfromSessionDescription:metadata.session];
        
        [session getTasksWithCompletionHandler:^(NSArray *dataTasks, NSArray *uploadTasks, NSArray *downloadTasks) {
            
            NSURLSessionTask *findTask;
            
            for (NSURLSessionTask *task in uploadTasks) {
                if (task.taskIdentifier == metadata.sessionTaskIdentifier) {
                    findTask = task;
                }
            }
            
            if (!findTask) {
                
                metadata.sessionTaskIdentifier = k_taskIdentifierDone;
                metadata.status = k_metadataStatusWaitUpload;
                
                (void)[[NCManageDatabase sharedInstance] addMetadata:metadata];
            }
        }];
    }
    
    // Upload in pending
    //
    NSArray *metadatasInUpload = [[NCManageDatabase sharedInstance] getMetadatasWithPredicate:[NSPredicate predicateWithFormat:@"session != %@ AND status == %d AND sessionTaskIdentifier == 0", k_upload_session_extension, k_metadataStatusInUpload] sorted:nil ascending:true];
    for (tableMetadata *metadata in metadatasInUpload) {
        if ([self.sessionPendingStatusInUpload containsObject:metadata.fileID]) {
            metadata.status = k_metadataStatusWaitUpload;
            (void)[[NCManageDatabase sharedInstance] addMetadata:metadata];
        } else {
            [self.sessionPendingStatusInUpload addObject:metadata.fileID];
        }
    }
    if (metadatasInUpload.count == 0) {
        [self.sessionPendingStatusInUpload removeAllObjects];
    }
    
    // Start Timer
    _timerProcessAutoDownloadUpload = [NSTimer scheduledTimerWithTimeInterval:k_timerProcessAutoDownloadUpload target:self selector:@selector(loadAutoDownloadUpload) userInfo:nil repeats:YES];
}

- (void)startLoadAutoDownloadUpload
{
    if (self.timerProcessAutoDownloadUpload.isValid) {
        [self performSelectorOnMainThread:@selector(loadAutoDownloadUpload) withObject:nil waitUntilDone:YES];
    }
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Open CCUploadFromOtherUpp  =====
#pragma --------------------------------------------------------------------------------------------

- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url
{
    return YES;
}

// Method called from iOS system to send a file from other app.
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url options:(NSDictionary<NSString *,id> *)options
{
    NSError *error;
    NSLog(@"[LOG] the path is: %@", url.path);
        
    NSArray *splitedUrl = [url.path componentsSeparatedByString:@"/"];
    self.fileNameUpload = [NSString stringWithFormat:@"%@",[splitedUrl objectAtIndex:([splitedUrl count]-1)]];
    
    if (self.activeAccount) {
        
        [[NSFileManager defaultManager]removeItemAtPath:[NSTemporaryDirectory() stringByAppendingString:self.fileNameUpload] error:nil];
        [[NSFileManager defaultManager]moveItemAtPath:url.path toPath:[NSTemporaryDirectory() stringByAppendingString:self.fileNameUpload] error:&error];
        
        if (error == nil) {
            
            UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
            UINavigationController *splitNavigationController = [splitViewController.viewControllers firstObject];
            
            UINavigationController *navigationController = [[UIStoryboard storyboardWithName:@"CCUploadFromOtherUpp" bundle:nil] instantiateViewControllerWithIdentifier:@"CCUploadNavigationViewController"];
            
            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.5 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
                [splitNavigationController presentViewController:navigationController animated:YES completion:nil];
            });
        }
    }
    
    return YES;
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== Maintenance Mode =====
#pragma --------------------------------------------------------------------------------------------

- (void)maintenanceMode:(BOOL)mode
{
    self.maintenanceMode = mode;
}

#pragma --------------------------------------------------------------------------------------------
#pragma mark ===== UPGRADE =====
#pragma --------------------------------------------------------------------------------------------

- (BOOL)upgrade
{
#ifdef DEBUG
    //self.maintenanceMode = YES;
#endif
    
    NSString *actualVersion = [CCUtility getVersion];
    NSString *actualBuild = [CCUtility getBuild];
    
    /* ---------------------- UPGRADE VERSION ----------------------- */
    
    // VERSION < 2.17.6

    if (([actualVersion compare:@"2.17.6" options:NSNumericSearch] == NSOrderedAscending)) {
        
        // Remove All old Photo Library
        [[NCManageDatabase sharedInstance] clearTable:[tablePhotoLibrary class] account:nil];
    }
    
    // VERSION == 2.17.6
    if ([actualVersion isEqualToString:@"2.17.6"]) {
        
        // Build < 10
        if (([actualBuild compare:@"10" options:NSNumericSearch] == NSOrderedAscending) || actualBuild == nil) {
            
            // Remove All old Photo Library
            //[[NCManageDatabase sharedInstance] clearTable:[tablePhotoLibrary class] account:nil];
        }
    }
        
    if (([actualVersion compare:@"2.19.1" options:NSNumericSearch] == NSOrderedAscending)) {

        [[NCManageDatabase sharedInstance] clearTable:[tableMetadata class] account:nil];
        [[NCManageDatabase sharedInstance] setClearAllDateReadDirectory];
    }
    
    if (([actualVersion compare:@"2.22.0" options:NSNumericSearch] == NSOrderedAscending)) {
     
        NSArray *records = [[NCManageDatabase sharedInstance] getTableLocalFilesWithPredicate:[NSPredicate predicateWithFormat:@"#size > 0"] sorted:@"account" ascending:NO];
        
        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{
            
            NSString *account = @"";
            NSString *directoryUser = @"";
            NSString *fileName;
            
            for (tableLocalFile *record in records) {
                if (![account isEqualToString:record.account]) {
                    tableAccount *tableAccount = [[NCManageDatabase sharedInstance] getAccountWithPredicate:[NSPredicate predicateWithFormat:@"account == %@", record.account]];
                    if (tableAccount) {
                        directoryUser = [CCUtility getDirectoryActiveUser:tableAccount.user activeUrl:tableAccount.url];
                        account = record.account;
                    }
                }
                fileName = [NSString stringWithFormat:@"%@/%@", directoryUser, record.fileID];
                if (![directoryUser isEqualToString:@""] && [[NSFileManager defaultManager] fileExistsAtPath:fileName]) {
                    [CCUtility moveFileAtPath:fileName toPath:[CCUtility getDirectoryProviderStorageFileID:record.fileID fileNameView:record.fileName]];
                }
            }
        });
    }
    
    if ([actualVersion isEqualToString:@"2.22.9"]) {
        if (([actualBuild compare:@"8" options:NSNumericSearch] == NSOrderedAscending) || actualBuild == nil) {
            [[NCManageDatabase sharedInstance] clearTable:[tableActivity class] account:nil];
            [[NCManageDatabase sharedInstance] clearTable:[tableActivitySubjectRich class] account:nil];
            [[NCManageDatabase sharedInstance] clearTable:[tableActivityPreview class] account:nil];
        }
    }

    return YES;
}

@end