LecturePlayerViewController.m

//
//  LecturePlayerViewController.m
//  LectureLeaks
//
//  Created by Christopher Ballinger on 6/9/11.
//  Copyright 2011 __MyCompanyName__. All rights reserved.
//

#import "LecturePlayerViewController.h"
#import "ASIFormDataRequest.h"

@implementation LecturePlayerViewController
@synthesize submitLabel;
@synthesize durationLabel;
@synthesize currentTimeLabel;
@synthesize locationSwitch;
@synthesize progressView;
@synthesize privateDescriptionTextField;
@synthesize publicDescriptionTextField;
@synthesize nameTextField;
@synthesize recording;
@synthesize playerUpdateTimer;
@synthesize playerSlider;
@synthesize playButton;
@synthesize stopButton;
@synthesize submitButton;
@synthesize player;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)dealloc
{
    [player release];
    [recording release];
    [durationLabel release];
    [currentTimeLabel release];
    [playerUpdateTimer release];
    [playerSlider release];
    [playButton release];
    [stopButton release];
    [submitButton release];
    [nameTextField release];
    [publicDescriptionTextField release];
    [privateDescriptionTextField release];
    [progressView release];
    [submitLabel release];
    [locationSwitch release];
    [super dealloc];
}

- (void)didReceiveMemoryWarning
{
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
    
    // Release any cached data, images, etc that aren't in use.
}

#pragma mark - View lifecycle

- (void)viewDidLoad
{
    [super viewDidLoad];
    nameTextField.text = recording.name;
    privateDescriptionTextField.text = recording.privateDescription;
    publicDescriptionTextField.text = recording.publicDescription;
    
    NSURL *url = recording.url;
    
    player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];
    
    
    submitButton.enabled = YES;
    
    isPlaying = NO;
    
    
    playerUpdateTimer = [[NSTimer scheduledTimerWithTimeInterval:1.0 target:self
                                                        selector:@selector(updateElapsedTime:) userInfo:nil repeats:YES] retain];
    
    
    self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"textureme.png"]];
    self.title = [recording.date description];
    
    
    if(recording.isSubmitted)
    {
        submitLabel.text = @"Previously Submitted";
        submitLabel.textColor = [UIColor greenColor];
    }
}

- (void)playerItemDidReachEnd:(NSNotification *)notification {
    [self stopPressed:nil];
}

-(void)viewDidDisappear:(BOOL)animated
{
    [player pause];
    [playerUpdateTimer invalidate];
}

- (void)viewDidUnload
{
    [self setDurationLabel:nil];
    [self setCurrentTimeLabel:nil];
    [self setPlayerSlider:nil];
    [self setPlayButton:nil];
    [self setStopButton:nil];
    [self setSubmitButton:nil];
    [self setNameTextField:nil];
    [self setPublicDescriptionTextField:nil];
    [self setPrivateDescriptionTextField:nil];
    [self setProgressView:nil];
    [self setSubmitLabel:nil];
    [self setLocationSwitch:nil];
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

// Update the call timer once a second.
- (void) updateElapsedTime:(NSTimer *) timer
{
    int currentTime = player.currentTime;
    
    duration = player.duration;
    
    
    [self updateLabel:currentTimeLabel withTime:currentTime];
    [self updateLabel:durationLabel withTime:duration];
    
    if(duration != 0)
    {
        self.playerSlider.value = currentTime / ((float)duration);
    }
    if(!isPlaying)
    {
        playButton.title = @"Play";
        playButton.enabled = YES;
    }
}

-(void) updateLabel:(UILabel*)label withTime:(NSTimeInterval)time
{
    int hour, minute, second;
	hour = time / 3600;
	minute = (time - hour * 3600) / 60;
	second = (time - hour * 3600 - minute * 60);
	label.text = [NSString stringWithFormat:@"%02d:%02d:%02d", hour, minute, second];
}

- (IBAction)seek:(id)sender 
{
    
    float currentTime = self.playerSlider.value * duration;
    [player setCurrentTime:currentTime];
    
    [self updateElapsedTime:nil];
}

- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {
    if (buttonIndex == 1)
    {
        if(!locationSwitch.on)
            recording.location = @"";
        [recording submitRecordingWithDelegate:self];
        submitLabel.text = @"Submitting...";
        submitLabel.textColor = [UIColor whiteColor];
    }
}

- (IBAction)submitPressed:(id)sender 
{
    UIAlertView *alert = [[[UIAlertView alloc] initWithTitle:@"Upload to OpenWatch" message:@"Would you like to upload your recording to OpenWatch? If you have enabled location services, you can provide us additional geographical context to the recording to help us identify regional trends. For more information visit openwatch.net/privacy." delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil] autorelease];
    [alert addButtonWithTitle:@"Upload"];
    [alert show];
}

- (IBAction)playPressed:(id)sender 
{
    if(!isPlaying)
    {
        [player play];
        playButton.title = @"Pause";
        stopButton.enabled = YES;
        isPlaying = YES;
        
    }
    else
    {
        [player pause];
        playButton.title = @"Play";
        isPlaying = NO;
    }
}

- (IBAction)stopPressed:(id)sender 
{
    
    [player pause];
    [player setCurrentTime:0];
    
    [self updateElapsedTime:nil];
    stopButton.enabled = NO;
    playButton.title = @"Play";
    isPlaying = NO;

}

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    
    recording.name = nameTextField.text;
    recording.privateDescription = privateDescriptionTextField.text;
    recording.publicDescription = publicDescriptionTextField.text;
    [recording saveMetadata];
    return YES;
}

- (void)requestFinished:(ASIHTTPRequest *)request
{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Upload Complete" message:@"The recording was uploaded successfully to www.openwatch.net" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
    [alert show];
    [alert release];
    
    // Set TRUE if file was sent properly
    recording.isSubmitted = YES;
    [recording saveMetadata];
    
    submitLabel.text = @"Submission successful!";
    submitLabel.textColor = [UIColor greenColor];
    progressView.hidden = TRUE;
}

- (void)requestFailed:(ASIHTTPRequest *)request
{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Upload Error" message:@"Upload failed, please check your internet connection and try again." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
    [alert show];
    [alert release];

    submitLabel.text = @"Submission failed!";
    submitLabel.textColor = [UIColor redColor];
    progressView.hidden = TRUE;
}

@end