/* 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 "UILinphone.h"
#import "UACellBackgroundView.h"

#import "DCRoundSwitch.h"

#import "IASKSpecifierValuesViewController.h"
#import "IASKPSTextFieldSpecifierViewCell.h"
#import "IASKSpecifier.h"
#import "IASKTextField.h"


#pragma mark - IASKSwitchEx Class

@interface IASKSwitchEx : DCRoundSwitch {
    NSString *_key;
}

@property (nonatomic, retain) NSString *key;

@end

@implementation IASKSwitchEx

@synthesize key=_key;

- (void)dealloc {
    [_key release], _key = nil;
	
    [super dealloc];
}

@end


#pragma mark - IASKSpecifierValuesViewControllerEx Class

// Patch IASKSpecifierValuesViewController
@interface IASKSpecifierValuesViewControllerEx: IASKSpecifierValuesViewController

@end

@implementation IASKSpecifierValuesViewControllerEx

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell * cell = [super tableView:tableView cellForRowAtIndexPath:indexPath];
    
    // Background View
    UACellBackgroundView *selectedBackgroundView = [[[UACellBackgroundView alloc] initWithFrame:CGRectZero] autorelease];
    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)] autorelease];
		[((IASKSwitchEx*)cell.accessoryView) addTarget:self action:@selector(toggledValue:) forControlEvents:UIControlEventValueChanged];
        [((IASKSwitchEx*)cell.accessoryView) setOnTintColor:LINPHONE_MAIN_COLOR];
		cell.selectionStyle = UITableViewCellSelectionStyleNone;
        cell.textLabel.minimumFontSize = kIASKMinimumFontSize;
        cell.detailTextLabel.minimumFontSize = kIASKMinimumFontSize;
	} else {
        cell = [super newCellForIdentifier:identifier];
    }
    return cell;
}

- (void)toggledValue:(id)sender {
    IASKSwitchEx *toggle    = [[(IASKSwitchEx*)sender retain] autorelease];
    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 {
    // 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];
    [targetViewController release];
}

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

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    [super tableView:tableView didSelectRowAtIndexPath:indexPath];
    [tableView deselectRowAtIndexPath:indexPath animated:YES]; // Fix IOS4 issue
}

- (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];
    }
    
    cell.detailTextLabel.textColor = LINPHONE_MAIN_COLOR;
    
    // Background View
    UACellBackgroundView *selectedBackgroundView = [[[UACellBackgroundView alloc] initWithFrame:CGRectZero] autorelease];
    cell.selectedBackgroundView = selectedBackgroundView;
    [selectedBackgroundView setBackgroundColor:LINPHONE_TABLE_CELL_BACKGROUND_COLOR];
    return cell;
}

@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:@"settings_bar_background.png"];
    [img drawInRect:rect];
}

@end


#pragma mark - UINavigationControllerEx Class

@interface UINavigationControllerEx : UINavigationController

@end

@implementation UINavigationControllerEx

+ (void)removeTableBackground:(UIView*)view {
    if([view isKindOfClass:[UITableView class]]) {
        [view setBackgroundColor:[UIColor clearColor]];
    }
    for(UIView *subview in [view subviews]) {
        [UINavigationControllerEx removeTableBackground:subview];
    }
}

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

- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated {
    [UINavigationControllerEx removeTableBackground:viewController.view];
    
    [viewController viewWillAppear:FALSE]; // Force load: Load Title
    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 = UITextAlignmentCenter;
    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 removeTableBackground:controller.view];
    }
    [super setViewControllers:viewControllers];
}

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

#pragma mark - UICompositeViewDelegate Functions

static UICompositeViewDescription *compositeDescription = nil;

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


#pragma mark - ViewController Functions

- (void)viewDidLoad {
    [super viewDidLoad];
    
    settingsController.showDoneButton = FALSE;
    settingsController.delegate = self;
    settingsController.showCreditsFooter = FALSE;
    settingsController.hiddenKeys = [self findHiddenKeys];
    settingsController.settingsStore = [[LinphoneManager instance] settingsStore];
    
    navigationController.view.frame = self.view.frame;
    [navigationController pushViewController:settingsController animated:FALSE];
    [self.view addSubview: navigationController.view];
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    if ([[UIDevice currentDevice].systemVersion doubleValue] < 5.0) {
        [settingsController viewWillDisappear:animated];
    }
    [settingsController dismiss:self];
    // Set observer
    [[NSNotificationCenter defaultCenter] removeObserver:self 
                                                 name:kIASKAppSettingChanged 
                                               object:nil];
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    if ([[UIDevice currentDevice].systemVersion doubleValue] < 5.0) {
        [settingsController viewWillAppear:animated];
    }   
    // Set observer
    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(appSettingChanged:) 
                                                 name:kIASKAppSettingChanged
                                               object:nil];
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    if ([[UIDevice currentDevice].systemVersion doubleValue] < 5.0) {
        [settingsController viewDidAppear:animated];
    }   
}

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
    if ([[UIDevice currentDevice].systemVersion doubleValue] < 5.0) {
        [settingsController viewDidDisappear:animated];
    }  
}


#pragma mark - Event Functions

- (void)appSettingChanged:(NSNotification*) notif {
    if([@"enable_video_preference" compare: notif.object] == NSOrderedSame) {
        BOOL enable = [[notif.userInfo objectForKey:@"enable_video_preference"] boolValue];
        NSMutableSet *hiddenKeys = [NSMutableSet setWithSet:[settingsController hiddenKeys]];
        if(!enable) {
            [hiddenKeys addObject:@"video_menu"];
        } else {
            [hiddenKeys removeObject:@"video_menu"];
        }
        [settingsController setHiddenKeys:hiddenKeys animated:TRUE];
    }else if([@"random_port_preference" compare: notif.object] == NSOrderedSame) {
        BOOL enable = [[notif.userInfo objectForKey:@"random_port_preference"] boolValue];
        NSMutableSet *hiddenKeys = [NSMutableSet setWithSet:[settingsController hiddenKeys]];
        if(enable) {
            [hiddenKeys addObject:@"port_preference"];
        } else {
            [hiddenKeys removeObject:@"port_preference"];
        }
        [settingsController setHiddenKeys:hiddenKeys animated:TRUE];
    }
}


#pragma mark - 

- (NSSet*)findHiddenKeys {
    if(![LinphoneManager isLcReady]) {
        [LinphoneLogger log:LinphoneLoggerWarning format:@"Can't filter settings: Linphone core not read"];
    }
    NSMutableSet *hiddenKeys = [NSMutableSet set];
    
    [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 isNotIphone3G])
        [hiddenKeys addObject:@"silk_24k_preference"];
    
    UIDevice* device = [UIDevice currentDevice];
    if (![device respondsToSelector:@selector(isMultitaskingSupported)] || ![device isMultitaskingSupported]) {
        [hiddenKeys addObject:@"backgroundmode_preference"];
    }
    
    [hiddenKeys addObject:@"enable_first_login_view_preference"];
    
    if (!linphone_core_video_enabled([LinphoneManager getLc])) {
        [hiddenKeys addObject:@"video_menu"];
    }
    
    [hiddenKeys addObjectsFromArray:[[LinphoneManager unsupportedCodecs] allObjects]];
    
    if([[[[LinphoneManager instance] settingsStore] objectForKey:@"random_port_preference"] boolValue]) {
        [hiddenKeys addObject:@"port_preference"];
    }

    return hiddenKeys;
}


#pragma mark - IASKSettingsDelegate Functions

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

@end