/* SettingsViewController.m
 *
 * Copyright (C) 2012  Belledonne Comunications, Grenoble, France
 *
 *  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 2 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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#import "SettingsViewController.h"
#import "LinphoneManager.h"
#import "PhoneMainView.h"
#import "UILinphone.h"
#import "UACellBackgroundView.h"

#import "DCRoundSwitch.h"

#import "IASKSpecifierValuesViewController.h"
#import "IASKPSTextFieldSpecifierViewCell.h"
#import "IASKPSTitleValueSpecifierViewCell.h"
#import "IASKSpecifier.h"
#import "IASKTextField.h"
#include "linphone/lpconfig.h"

#ifdef DEBUG
@interface UIDevice (debug)

- (void)_setBatteryLevel:(float)level;
- (void)_setBatteryState:(int)state;

@end
#endif

@interface SettingsViewController (private)

+ (IASKSpecifier *)filterSpecifier:(IASKSpecifier *)specifier;

@end

#pragma mark - IASKSwitchEx Class

@interface IASKSwitchEx : DCRoundSwitch {
	NSString *_key;
}

@property(nonatomic, strong) NSString *key;

@end

@implementation IASKSwitchEx

@synthesize key = _key;

- (void)dealloc {
	_key = nil;
}

@end

#pragma mark - IASKSpecifierValuesViewControllerEx Class

// Patch IASKSpecifierValuesViewController
@interface IASKSpecifierValuesViewControllerEx : IASKSpecifierValuesViewController

@end

@implementation IASKSpecifierValuesViewControllerEx

- (void)initIASKSpecifierValuesViewControllerEx {
	[self.view setBackgroundColor:[UIColor clearColor]];
}

- (id)init {
	self = [super init];
	if (self != nil) {
		[self initIASKSpecifierValuesViewControllerEx];
	}
	return self;
}

- (id)initWithCoder:(NSCoder *)aDecoder {
	self = [super initWithCoder:aDecoder];
	if (self != nil) {
		[self initIASKSpecifierValuesViewControllerEx];
	}
	return self;
}

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
	self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
	if (self != nil) {
		[self initIASKSpecifierValuesViewControllerEx];
	}
	return self;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
	UITableViewCell *cell = [super tableView:tableView cellForRowAtIndexPath:indexPath];

	// Background View
	UACellBackgroundView *selectedBackgroundView = [[UACellBackgroundView alloc] initWithFrame:CGRectZero];
	cell.selectedBackgroundView = selectedBackgroundView;
	[selectedBackgroundView setBackgroundColor:LINPHONE_TABLE_CELL_BACKGROUND_COLOR];
	return cell;
}

@end

#pragma mark - IASKAppSettingsViewControllerEx Class

@interface IASKAppSettingsViewController (PrivateInterface)
- (UITableViewCell *)newCellForIdentifier:(NSString *)identifier;
@end
;

@interface IASKAppSettingsViewControllerEx : IASKAppSettingsViewController

@end

@implementation IASKAppSettingsViewControllerEx

- (UITableViewCell *)newCellForIdentifier:(NSString *)identifier {
	UITableViewCell *cell = nil;
	if ([identifier isEqualToString:kIASKPSToggleSwitchSpecifier]) {
		cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
									  reuseIdentifier:kIASKPSToggleSwitchSpecifier];
		cell.accessoryView = [[IASKSwitchEx alloc] initWithFrame:CGRectMake(0, 0, 79, 27)];
		[((IASKSwitchEx *)cell.accessoryView)addTarget:self
												action:@selector(toggledValue:)
									  forControlEvents:UIControlEventValueChanged];
		[((IASKSwitchEx *)cell.accessoryView)setOnTintColor:LINPHONE_MAIN_COLOR];
		cell.selectionStyle = UITableViewCellSelectionStyleNone;
		cell.textLabel.minimumScaleFactor = kIASKMinimumFontSize / [UIFont systemFontSize];
		cell.detailTextLabel.minimumScaleFactor = kIASKMinimumFontSize / [UIFont systemFontSize];
	} else {
		cell = [super newCellForIdentifier:identifier];
	}
	return cell;
}

- (void)toggledValue:(id)sender {
	IASKSwitchEx *toggle = (IASKSwitchEx *)sender;
	IASKSpecifier *spec = [_settingsReader specifierForKey:[toggle key]];

	if ([toggle isOn]) {
		if ([spec trueValue] != nil) {
			[self.settingsStore setObject:[spec trueValue] forKey:[toggle key]];
		} else {
			[self.settingsStore setBool:YES forKey:[toggle key]];
		}
	} else {
		if ([spec falseValue] != nil) {
			[self.settingsStore setObject:[spec falseValue] forKey:[toggle key]];
		} else {
			[self.settingsStore setBool:NO forKey:[toggle key]];
		}
	}
	// Start notification after animation of DCRoundSwitch
	dispatch_async(dispatch_get_main_queue(), ^{
	  [[NSNotificationCenter defaultCenter]
		  postNotificationName:kIASKAppSettingChanged
						object:[toggle key]
					  userInfo:[NSDictionary dictionaryWithObject:[self.settingsStore objectForKey:[toggle key]]
														   forKey:[toggle key]]];
	});
}

- (void)initIASKAppSettingsViewControllerEx {
	[self.view setBackgroundColor:[UIColor clearColor]];

	// Force kIASKSpecifierValuesViewControllerIndex
	static int kIASKSpecifierValuesViewControllerIndex = 0;
	_viewList = [[NSMutableArray alloc] init];
	[_viewList addObject:[NSDictionary dictionaryWithObjectsAndKeys:@"IASKSpecifierValuesView", @"ViewName", nil]];
	[_viewList addObject:[NSDictionary dictionaryWithObjectsAndKeys:@"IASKAppSettingsView", @"ViewName", nil]];

	NSMutableDictionary *newItemDict = [NSMutableDictionary dictionaryWithCapacity:3];
	[newItemDict addEntriesFromDictionary:[_viewList objectAtIndex:kIASKSpecifierValuesViewControllerIndex]]; // copy
																											  // the
																											  // title
																											  // and
																											  // explain
																											  // strings

	IASKSpecifierValuesViewController *targetViewController = [[IASKSpecifierValuesViewControllerEx alloc] init];
	// add the new view controller to the dictionary and then to the 'viewList' array
	[newItemDict setObject:targetViewController forKey:@"viewController"];
	[_viewList replaceObjectAtIndex:kIASKSpecifierValuesViewControllerIndex withObject:newItemDict];
}

- (IASKSettingsReader *)settingsReader {
	IASKSettingsReader *r = [super settingsReader];
	NSMutableArray *dataSource = [NSMutableArray arrayWithArray:[r dataSource]];
	for (int i = 0; i < [dataSource count]; ++i) {
		NSMutableArray *specifiers = [NSMutableArray arrayWithArray:[dataSource objectAtIndex:i]];
		for (int j = 0; j < [specifiers count]; ++j) {
			id sp = [specifiers objectAtIndex:j];
			if ([sp isKindOfClass:[IASKSpecifier class]]) {
				sp = [SettingsViewController filterSpecifier:sp];
			}
			[specifiers replaceObjectAtIndex:j withObject:sp];
		}

		[dataSource replaceObjectAtIndex:i withObject:specifiers];
	}
	[r setDataSource:dataSource];
	return r;
}

- (id)initWithStyle:(UITableViewStyle)style {
	self = [super initWithStyle:style];
	if (self != nil) {
		[self initIASKAppSettingsViewControllerEx];
	}
	return self;
}

- (void)viewWillAppear:(BOOL)animated {
	[super viewWillAppear:animated];

	UIEdgeInsets inset = {0, 0, 10, 0};
	UIScrollView *scrollView = self.tableView;
	[scrollView setContentInset:inset];
	[scrollView setScrollIndicatorInsets:inset];
}

- (void)viewDidAppear:(BOOL)animated {
	[super viewDidAppear:animated];

	UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"About", nil)
																   style:UIBarButtonItemStyleBordered
																  target:self
																  action:@selector(onAboutClick:)];
	self.navigationItem.rightBarButtonItem = buttonItem;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
	UITableViewCell *cell = [super tableView:tableView cellForRowAtIndexPath:indexPath];

	if ([cell isKindOfClass:[IASKPSTextFieldSpecifierViewCell class]]) {
		UITextField *field = ((IASKPSTextFieldSpecifierViewCell *)cell).textField;
		[field setTextColor:LINPHONE_MAIN_COLOR];
	}

	if ([cell isKindOfClass:[IASKPSTitleValueSpecifierViewCell class]]) {
		cell.detailTextLabel.textColor = [UIColor grayColor];
	} else {
		cell.detailTextLabel.textColor = LINPHONE_MAIN_COLOR;
	}

	// Background View
	UACellBackgroundView *selectedBackgroundView = [[UACellBackgroundView alloc] initWithFrame:CGRectZero];
	cell.selectedBackgroundView = selectedBackgroundView;
	[selectedBackgroundView setBackgroundColor:LINPHONE_TABLE_CELL_BACKGROUND_COLOR];
	return cell;
}

- (IBAction)onAboutClick:(id)sender {
	[[PhoneMainView instance] changeCurrentView:[AboutViewController compositeViewDescription] push:TRUE];
}

@end

#pragma mark - UINavigationBarEx Class

@interface UINavigationBarEx : UINavigationBar {
}
@end

@implementation UINavigationBarEx

#pragma mark - Lifecycle Functions

- (void)initUINavigationBarEx {
	[self setTintColor:[LINPHONE_MAIN_COLOR adjustHue:5.0f / 180.0f saturation:0.0f brightness:0.0f alpha:0.0f]];
}

- (id)init {
	self = [super init];
	if (self) {
		[self initUINavigationBarEx];
	}
	return self;
}

- (id)initWithCoder:(NSCoder *)aDecoder {
	self = [super initWithCoder:aDecoder];
	if (self) {
		[self initUINavigationBarEx];
	}
	return self;
}

- (id)initWithFrame:(CGRect)frame {
	self = [super initWithFrame:frame];
	if (self) {
		[self initUINavigationBarEx];
	}
	return self;
}

- (void)drawRect:(CGRect)rect {
	UIImage *img = [UIImage imageNamed:@"toolsbar_background.png"];
	[img drawInRect:rect];
}

@end

#pragma mark - UINavigationControllerEx Class

@interface UINavigationControllerEx : UINavigationController

@end

@implementation UINavigationControllerEx

- (id)initWithRootViewController:(UIViewController *)rootViewController {
	[UINavigationControllerEx removeBackground:rootViewController.view];
	return [self initWithRootViewController:rootViewController];
}

+ (void)removeBackground:(UIView *)view {
	// iOS7 transparent background is *really* transparent: with an alpha != 0
	// it messes up the transitions. Use non-transparent BG for iOS7
	if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7)
		[view setBackgroundColor:LINPHONE_SETTINGS_BG_IOS7];
	else
		[view setBackgroundColor:[UIColor clearColor]];
}

- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated {
	[UINavigationControllerEx removeBackground:viewController.view];

	[viewController view]; // Force view
	UILabel *labelTitleView = [[UILabel alloc] init];
	labelTitleView.backgroundColor = [UIColor clearColor];
	labelTitleView.textColor = [UIColor colorWithRed:0x41 / 255.0f green:0x48 / 255.0f blue:0x4f / 255.0f alpha:1.0];
	labelTitleView.shadowColor = [UIColor colorWithWhite:1.0 alpha:0.5];
	labelTitleView.font = [UIFont boldSystemFontOfSize:20];
	labelTitleView.shadowOffset = CGSizeMake(0, 1);
	labelTitleView.textAlignment = NSTextAlignmentCenter;
	labelTitleView.text = viewController.title;
	[labelTitleView sizeToFit];
	viewController.navigationItem.titleView = labelTitleView;
	[super pushViewController:viewController animated:animated];
}

- (void)setViewControllers:(NSArray *)viewControllers {
	for (UIViewController *controller in viewControllers) {
		[UINavigationControllerEx removeBackground:controller.view];
	}
	[super setViewControllers:viewControllers];
}

- (void)setViewControllers:(NSArray *)viewControllers animated:(BOOL)animated {
	for (UIViewController *controller in viewControllers) {
		[UINavigationControllerEx removeBackground:controller.view];
	}
	[super setViewControllers:viewControllers animated:animated];
}

@end

@implementation SettingsViewController

@synthesize settingsController;
@synthesize navigationController;

#pragma mark - Lifecycle Functions

- (id)init {
	return [super initWithNibName:@"SettingsViewController" bundle:[NSBundle mainBundle]];
}

- (void)dealloc {
	// Remove all observer
	[[NSNotificationCenter defaultCenter] removeObserver:self];
}

#pragma mark - UICompositeViewDelegate Functions

static UICompositeViewDescription *compositeDescription = nil;

+ (UICompositeViewDescription *)compositeViewDescription {
	if (compositeDescription == nil) {
		compositeDescription = [[UICompositeViewDescription alloc] init:@"Settings"
																content:@"SettingsViewController"
															   stateBar:@"UIStateBar"
																 tabBar:@"UIMainBar"
															 fullscreen:false
														  landscapeMode:[LinphoneManager runningOnIpad]
														   portraitMode:true];
	}
	return compositeDescription;
}

#pragma mark - ViewController Functions

- (void)viewDidLoad {
	[super viewDidLoad];

	settingsStore = [[LinphoneCoreSettingsStore alloc] init];

	settingsController.showDoneButton = FALSE;
	settingsController.delegate = self;
	settingsController.showCreditsFooter = FALSE;
	settingsController.settingsStore = settingsStore;

	[navigationController.view setBackgroundColor:[UIColor clearColor]];

	navigationController.view.frame = self.view.frame;
	[navigationController pushViewController:settingsController animated:FALSE];
	[self.view addSubview:navigationController.view];
}

- (void)viewWillDisappear:(BOOL)animated {
	[super viewWillDisappear:animated];
	[settingsController dismiss:self];
	// Set observer
	[[NSNotificationCenter defaultCenter] removeObserver:self name:kIASKAppSettingChanged object:nil];
}

- (void)viewWillAppear:(BOOL)animated {
	[super viewWillAppear:animated];

	// Sync settings with linphone core settings
	[settingsStore transformLinphoneCoreToKeys];
	settingsController.hiddenKeys = [self findHiddenKeys];
	[settingsController.tableView reloadData];

	// Set observer
	[[NSNotificationCenter defaultCenter] addObserver:self
											 selector:@selector(appSettingChanged:)
												 name:kIASKAppSettingChanged
											   object:nil];
}

#pragma mark - Event Functions

- (void)appSettingChanged:(NSNotification *)notif {
	NSMutableSet *hiddenKeys = [NSMutableSet setWithSet:[settingsController hiddenKeys]];
	NSMutableArray *keys = [NSMutableArray array];
	BOOL removeFromHiddenKeys = TRUE;

	if ([@"enable_video_preference" compare:notif.object] == NSOrderedSame) {
		removeFromHiddenKeys = [[notif.userInfo objectForKey:@"enable_video_preference"] boolValue];
		[keys addObject:@"video_menu"];
	} else if ([@"random_port_preference" compare:notif.object] == NSOrderedSame) {
		removeFromHiddenKeys = ![[notif.userInfo objectForKey:@"random_port_preference"] boolValue];
		[keys addObject:@"port_preference"];
	} else if ([@"backgroundmode_preference" compare:notif.object] == NSOrderedSame) {
		removeFromHiddenKeys = [[notif.userInfo objectForKey:@"backgroundmode_preference"] boolValue];
		[keys addObject:@"start_at_boot_preference"];
	} else if ([@"stun_preference" compare:notif.object] == NSOrderedSame) {
		NSString *stun_server = [notif.userInfo objectForKey:@"stun_preference"];
		removeFromHiddenKeys = (stun_server && ([stun_server length] > 0));
		[keys addObject:@"ice_preference"];
	} else if ([@"debugenable_preference" compare:notif.object] == NSOrderedSame) {
		BOOL debugEnabled = [[notif.userInfo objectForKey:@"debugenable_preference"] boolValue];
		removeFromHiddenKeys = debugEnabled;
		[keys addObject:@"send_logs_button"];
		[keys addObject:@"reset_logs_button"];
		[[LinphoneManager instance] setLogsEnabled:debugEnabled];
	} else if ([@"advanced_account_preference" compare:notif.object] == NSOrderedSame) {
		removeFromHiddenKeys = [[notif.userInfo objectForKey:@"advanced_account_preference"] boolValue];
		[keys addObject:@"userid_preference"];
		[keys addObject:@"proxy_preference"];
		[keys addObject:@"outbound_proxy_preference"];
		[keys addObject:@"avpf_preference"];
	} else if ([@"video_preset_preference" compare:notif.object] == NSOrderedSame) {
		NSString *video_preset = [notif.userInfo objectForKey:@"video_preset_preference"];
		removeFromHiddenKeys = [video_preset isEqualToString:@"custom"];
		[keys addObject:@"video_preferred_fps_preference"];
		[keys addObject:@"download_bandwidth_preference"];
	}

	for (NSString *key in keys) {
		if (removeFromHiddenKeys)
			[hiddenKeys removeObject:key];
		else
			[hiddenKeys addObject:key];
	}

	[settingsController setHiddenKeys:hiddenKeys animated:TRUE];
}

#pragma mark -

+ (IASKSpecifier *)filterSpecifier:(IASKSpecifier *)specifier {
	if (!linphone_core_sip_transport_supported([LinphoneManager getLc], LinphoneTransportTls)) {
		if ([[specifier key] isEqualToString:@"transport_preference"]) {
			NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithDictionary:[specifier specifierDict]];
			NSMutableArray *titles = [NSMutableArray arrayWithArray:[dict objectForKey:@"Titles"]];
			[titles removeObject:@"TLS"];
			[dict setObject:titles forKey:@"Titles"];
			NSMutableArray *values = [NSMutableArray arrayWithArray:[dict objectForKey:@"Values"]];
			[values removeObject:@"tls"];
			[dict setObject:values forKey:@"Values"];
			return [[IASKSpecifier alloc] initWithSpecifier:dict];
		}
	} else {
		if ([[specifier key] isEqualToString:@"media_encryption_preference"]) {
			NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithDictionary:[specifier specifierDict]];
			if (!linphone_core_media_encryption_supported([LinphoneManager getLc], LinphoneMediaEncryptionZRTP)) {
				NSMutableArray *titles = [NSMutableArray arrayWithArray:[dict objectForKey:@"Titles"]];
				[titles removeObject:@"ZRTP"];
				[dict setObject:titles forKey:@"Titles"];
				NSMutableArray *values = [NSMutableArray arrayWithArray:[dict objectForKey:@"Values"]];
				[values removeObject:@"ZRTP"];
				[dict setObject:values forKey:@"Values"];
			}
			if (!linphone_core_media_encryption_supported([LinphoneManager getLc], LinphoneMediaEncryptionSRTP)) {
				NSMutableArray *titles = [NSMutableArray arrayWithArray:[dict objectForKey:@"Titles"]];
				[titles removeObject:@"SRTP"];
				[dict setObject:titles forKey:@"Titles"];
				NSMutableArray *values = [NSMutableArray arrayWithArray:[dict objectForKey:@"Values"]];
				[values removeObject:@"SRTP"];
				[dict setObject:values forKey:@"Values"];
			}
			if (!linphone_core_media_encryption_supported([LinphoneManager getLc], LinphoneMediaEncryptionDTLS)) {
				NSMutableArray *titles = [NSMutableArray arrayWithArray:[dict objectForKey:@"Titles"]];
				[titles removeObject:@"DTLS"];
				[dict setObject:titles forKey:@"Titles"];
				NSMutableArray *values = [NSMutableArray arrayWithArray:[dict objectForKey:@"Values"]];
				[values removeObject:@"DTLS"];
				[dict setObject:values forKey:@"Values"];
			}
			return [[IASKSpecifier alloc] initWithSpecifier:dict];
		}
	}

	if ([specifier.key hasPrefix:@"account_"] && [specifier.key hasSuffix:@"_menu"]) {
		const MSList *accounts = linphone_core_get_proxy_config_list([LinphoneManager getLc]);
		int index = [[specifier.key substringFromIndex:@"account_".length] stringByReplacingOccurrencesOfString:@"_menu"
																									 withString:@""]
						.intValue -
					1;
		if (index < ms_list_size(accounts)) {
			LinphoneProxyConfig *proxy = (LinphoneProxyConfig *)ms_list_nth_data(accounts, index);
			NSString *name = [NSString
				stringWithUTF8String:linphone_address_get_username(linphone_proxy_config_get_identity_address(proxy))];
			[specifier.specifierDict setValue:name forKey:kIASKTitle];
		}
	}

	return specifier;
}

- (NSSet *)findHiddenKeys {
	LinphoneManager *lm = [LinphoneManager instance];
	NSMutableSet *hiddenKeys = [NSMutableSet set];

	const MSList *accounts = linphone_core_get_proxy_config_list([LinphoneManager getLc]);
	for (int i = ms_list_size(accounts) + 1; i <= 5; i++) {
		[hiddenKeys addObject:[NSString stringWithFormat:@"account_%d_menu", i]];
	}

	if (!linphone_core_sip_transport_supported([LinphoneManager getLc], LinphoneTransportTls)) {
		[hiddenKeys addObject:@"media_encryption_preference"];
	}

#ifndef DEBUG
	[hiddenKeys addObject:@"release_button"];
	[hiddenKeys addObject:@"clear_cache_button"];
	[hiddenKeys addObject:@"battery_alert_button"];
#endif

	if (![[LinphoneManager instance] lpConfigBoolForKey:@"debugenable_preference"]) {
		[hiddenKeys addObject:@"send_logs_button"];
		[hiddenKeys addObject:@"reset_logs_button"];
	}

	[hiddenKeys addObject:@"playback_gain_preference"];
	[hiddenKeys addObject:@"microphone_gain_preference"];

	[hiddenKeys addObject:@"network_limit_group"];

	[hiddenKeys addObject:@"incoming_call_timeout_preference"];
	[hiddenKeys addObject:@"in_call_timeout_preference"];

	[hiddenKeys addObject:@"wifi_only_preference"];

	[hiddenKeys addObject:@"quit_button"];  // Hide for the moment
	[hiddenKeys addObject:@"about_button"]; // Hide for the moment

	if (!linphone_core_video_supported([LinphoneManager getLc]))
		[hiddenKeys addObject:@"video_menu"];

	if (![LinphoneManager isCodecSupported:"h264"]) {
		[hiddenKeys addObject:@"h264_preference"];
	}
	if (![LinphoneManager isCodecSupported:"mp4v-es"]) {
		[hiddenKeys addObject:@"mp4v-es_preference"];
	}

	if (![LinphoneManager isNotIphone3G])
		[hiddenKeys addObject:@"silk_24k_preference"];

	UIDevice *device = [UIDevice currentDevice];
	if (![device respondsToSelector:@selector(isMultitaskingSupported)] || ![device isMultitaskingSupported]) {
		[hiddenKeys addObject:@"backgroundmode_preference"];
		[hiddenKeys addObject:@"start_at_boot_preference"];
	} else {
		if (![lm lpConfigBoolForKey:@"backgroundmode_preference"]) {
			[hiddenKeys addObject:@"start_at_boot_preference"];
		}
	}

	[hiddenKeys addObject:@"enable_first_login_view_preference"];

	if (!linphone_core_video_supported([LinphoneManager getLc])) {
		[hiddenKeys addObject:@"enable_video_preference"];
	}

	if (!linphone_core_video_enabled([LinphoneManager getLc])) {
		[hiddenKeys addObject:@"video_menu"];
	}

	if (!linphone_core_get_video_preset([LinphoneManager getLc]) ||
		strcmp(linphone_core_get_video_preset([LinphoneManager getLc]), "custom") != 0) {
		[hiddenKeys addObject:@"video_preferred_fps_preference"];
		[hiddenKeys addObject:@"download_bandwidth_preference"];
	}

	[hiddenKeys addObjectsFromArray:[[LinphoneManager unsupportedCodecs] allObjects]];

	BOOL random_port = [lm lpConfigBoolForKey:@"random_port_preference"];
	if (random_port) {
		[hiddenKeys addObject:@"port_preference"];
	}

	if (linphone_core_get_stun_server([LinphoneManager getLc]) == NULL) {
		[hiddenKeys addObject:@"ice_preference"];
	}

	if (![lm lpConfigBoolForKey:@"debugenable_preference"]) {
		[hiddenKeys addObject:@"console_button"];
	}

	if (![LinphoneManager runningOnIpad]) {
		[hiddenKeys addObject:@"preview_preference"];
	}
	if ([lm lpConfigBoolForKey:@"hide_run_assistant_preference"]) {
		[hiddenKeys addObject:@"assistant_button"];
	}

	if (!linphone_core_tunnel_available()) {
		[hiddenKeys addObject:@"tunnel_menu"];
	}

	if (![lm lpConfigBoolForKey:@"advanced_account_preference"]) {
		[hiddenKeys addObject:@"userid_preference"];
		[hiddenKeys addObject:@"proxy_preference"];
		[hiddenKeys addObject:@"outbound_proxy_preference"];
		[hiddenKeys addObject:@"avpf_preference"];
	}

	if (![[[LinphoneManager instance] iapManager] enabled]) {
		[hiddenKeys addObject:@"in_app_products_button"];
	}

	if ([[UIDevice currentDevice].systemVersion floatValue] < 8) {
		[hiddenKeys addObject:@"repeat_call_notification_preference"];
	}

	return hiddenKeys;
}

#pragma mark - IASKSettingsDelegate Functions

- (void)settingsViewControllerDidEnd:(IASKAppSettingsViewController *)sender {
}

- (void)settingsViewController:(IASKAppSettingsViewController *)sender
	  buttonTappedForSpecifier:(IASKSpecifier *)specifier {
	NSString *key = [specifier.specifierDict objectForKey:kIASKKey];
	LinphoneCore *lc = [LinphoneManager getLc];
#ifdef DEBUG
	if ([key isEqual:@"release_button"]) {
		[UIApplication sharedApplication].keyWindow.rootViewController = nil;
		[[UIApplication sharedApplication].keyWindow setRootViewController:nil];
		[[LinphoneManager instance] destroyLinphoneCore];
		[LinphoneManager instanceRelease];
	} else if ([key isEqual:@"clear_cache_button"]) {
		[[PhoneMainView instance]
				.mainViewController clearCache:[NSArray arrayWithObject:[[PhoneMainView instance] currentView]]];
	} else if ([key isEqual:@"battery_alert_button"]) {
		[[UIDevice currentDevice] _setBatteryState:UIDeviceBatteryStateUnplugged];
		[[UIDevice currentDevice] _setBatteryLevel:0.01f];
		[[NSNotificationCenter defaultCenter] postNotificationName:UIDeviceBatteryLevelDidChangeNotification
															object:self];
	}
#endif
	if ([key isEqual:@"assistant_button"]) {
		[PhoneMainView.instance changeCurrentView:AssistantViewController.compositeViewDescription];
		return;
	} else if ([key isEqual:@"clear_proxy_button"]) {
		if (linphone_core_get_default_proxy_config(lc) == NULL) {
			return;
		}

		DTAlertView *alert = [[DTAlertView alloc]
			initWithTitle:NSLocalizedString(@"Warning", nil)
				  message:NSLocalizedString(@"Are you sure to want to clear your proxy setup?", nil)];

		[alert addCancelButtonWithTitle:NSLocalizedString(@"Cancel", nil) block:nil];
		[alert addButtonWithTitle:NSLocalizedString(@"Yes", nil)
							block:^{
							  linphone_core_clear_proxy_config(lc);
							  linphone_core_clear_all_auth_info(lc);
							  [settingsStore transformLinphoneCoreToKeys];
							  [settingsController.tableView reloadData];
							}];
		[alert show];

	} else if ([key isEqual:@"about_button"]) {
		[[PhoneMainView instance] changeCurrentView:[AboutViewController compositeViewDescription] push:TRUE];
	} else if ([key isEqualToString:@"reset_logs_button"]) {
		linphone_core_reset_log_collection();
	} else if ([key isEqual:@"send_logs_button"]) {
		char *filepath = linphone_core_compress_log_collection(lc);
		if (filepath == NULL) {
			LOGE(@"Cannot sent logs: file is NULL");
			return;
		}

		NSString *filename = [[NSString stringWithUTF8String:filepath] componentsSeparatedByString:@"/"].lastObject;
		NSString *mimeType;
		if ([filename hasSuffix:@".jpg"]) {
			mimeType = @"image/jpeg";
		} else if ([filename hasSuffix:@".png"]) {
			mimeType = @"image/png";
		} else if ([filename hasSuffix:@".pdf"]) {
			mimeType = @"application/pdf";
		} else if ([filename hasSuffix:@".txt"]) {
			mimeType = @"text/plain";
		} else if ([filename hasSuffix:@".gz"]) {
			mimeType = @"application/gzip";
		} else {
			LOGE(@"Unknown extension type: %@, cancelling email", filename);
			return;
		}
		[self emailAttachment:[NSData dataWithContentsOfFile:[NSString stringWithUTF8String:filepath]]
					 mimeType:mimeType
						 name:filename];
		ms_free(filepath);
	}
}

#pragma mark - Mail composer for send log
- (void)emailAttachment:(NSData *)attachment mimeType:(NSString *)type name:(NSString *)attachmentName {
	if (attachmentName == nil || type == nil || attachmentName == nil) {
		LOGE(@"Trying to email attachment but mandatory field is missing");
		return;
	}

#if TARGET_IPHONE_SIMULATOR
	UIAlertView *error = [[UIAlertView alloc]
			initWithTitle:NSLocalizedString(@"Cannot send email", nil)
				  message:NSLocalizedString(
							  @"Simulator cannot send emails. To test this feature, please use a real device.", nil)
				 delegate:nil
		cancelButtonTitle:NSLocalizedString(@"Continue", nil)
		otherButtonTitles:nil];
	[error show];
#else
	if ([MFMailComposeViewController canSendMail] == YES) {
		MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
		picker.mailComposeDelegate = self;

		[picker setSubject:NSLocalizedString(@"Linphone Logs", nil)];
		[picker setToRecipients:[NSArray arrayWithObjects:@"linphone-iphone@belledonne-communications.com", nil]];
		[picker setMessageBody:NSLocalizedString(@"Linphone logs", nil) isHTML:NO];
		[picker addAttachmentData:attachment mimeType:type fileName:attachmentName];

		[self presentViewController:picker animated:true completion:nil];
	} else {
		UIAlertView *error = [[UIAlertView alloc]
				initWithTitle:NSLocalizedString(@"Cannot send email", nil)
					  message:NSLocalizedString(@"Your device is not configured to send emails. Please configure mail "
												@"application prior to send logs.",
												nil)
					 delegate:nil
			cancelButtonTitle:NSLocalizedString(@"Continue", nil)
			otherButtonTitles:nil];
		[error show];
	}
#endif
}

- (void)mailComposeController:(MFMailComposeViewController *)controller
		  didFinishWithResult:(MFMailComposeResult)result
						error:(NSError *)error {
	if (error != nil) {
		LOGW(@"Error while sending mail: %@", error);
	} else {
		LOGI(@"Mail completed with status: %d", result);
	}
	[self dismissViewControllerAnimated:true completion:nil];
}

@end