/*

 Copyright (C) 2017 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 This class represents a node/sequencer.

                 It contains -

                     A reference to the AudioEngine

                     Basic Views for displaying parameters. Subclasses can provide their own views for customization

*/

#import "AudioViewController.h"

@interface AudioViewController ()

@end

@implementation AudioViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    //if the device is an iPad, add the view to the stackview and display it right away

    //else for iPhone, make the title bar selectable, and then present the view modally

    if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {

        [self.stackView addArrangedSubview:self.parameterView];

    } else {

        UITapGestureRecognizer *titleViewTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showParameterView:)];

        [self.titleView addGestureRecognizer:titleViewTap];

        UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeRecognizer:)];

        swipe.direction = UISwipeGestureRecognizerDirectionDown;

        [self.parameterView addGestureRecognizer:swipe];

    }

    [self updateUIElements];

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

// style play/stop button

- (void)styleButton:(UIButton *)button isPlaying:(BOOL)isPlaying

{

    if (isPlaying)

        [button setTitle: @"Stop" forState: UIControlStateNormal];

    else

        [button setTitle: @"Play" forState: UIControlStateNormal];

}

//present parameter view

- (void)showParameterView:(UITapGestureRecognizer *)recognizer {

    if ([UIDevice currentDevice].userInterfaceIdiom != UIUserInterfaceIdiomPad) {

        UINavigationController *navigationController = [UINavigationController new];

        UIViewController *controller = [UIViewController new];

        controller.view = self.parameterView;

        navigationController.viewControllers = @[controller];

        navigationController.navigationBar.translucent = NO;

        navigationController.navigationBar.barTintColor = self.titleView.tintColor;

        navigationController.navigationBar.topItem.title = self.titleLabel.text;

        [UINavigationBar appearance].tintColor = [UIColor blackColor];

        UIBarButtonItem *dismissButton = [[UIBarButtonItem alloc] initWithTitle:@"Dismiss"

                                                                          style:UIBarButtonItemStylePlain

                                                                         target:self

                                                                         action:@selector(swipeRecognizer:)];

        [navigationController.navigationBar.topItem setRightBarButtonItem:dismissButton];

        self.parameterView.presentedController = navigationController;

        [self presentViewController:navigationController animated:YES completion:nil];

    }

}

//swipe down to dismiss the controller

- (void)swipeRecognizer:(UISwipeGestureRecognizer *)sender {

    [self.parameterView.presentedController dismissViewControllerAnimated:YES completion:nil];

    self.parameterView.presentedController = nil;

}

//subclasses can overide this method to update their UI elements when the engine is re/configured

-(void)updateUIElements

{

}

@end