//
//  InstaBeanViewController.m
//  iBean
//
//  Created by Eddie Ehlin on 2012-12-31.
//  Copyright (c) 2012 Eddie Ehlin. All rights reserved.
//

#import "InstaBeanViewController.h"
#import "AppDelegate+Storage.h"

@interface InstaBeanViewController ()

@end

@implementation InstaBeanViewController


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

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view.
}

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

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


/*****************************************************
                  Utility methods
 *****************************************************/
#pragma mark - Utility methods
- (void) initInstaBean
{
  if (self.configuration == nil)
  {
    NSLog(@"Loading & setting stepper!");
    self.configuration = [(AppDelegate*) [[UIApplication sharedApplication] delegate] getInstaBeanConfiguration];
    
    if (self.configuration == nil)
    {
      //TODO: Display error!
      NSLog(@"initInstaBean received nil for configuration!");
#warning TODO: Display error!?
      return;
    }
  }
  
  [self.extractionSettingStepper setValue:[self.configuration.extractionTime doubleValue]];
  [self updateExtractionSettingLabel];
}

- (void) updateExtractionProgressLabel
{
  self.extractionProgress += 0.1f;
  self.extractionProgressLabel.text = [NSString stringWithFormat:@"%1.1f", self.extractionProgress];
  
  if (self.extractionProgress >= self.extractionSettingStepper.value)
  {
    NSLog(@"Timer reached its limit!");
    [self haltExtractionTimer];
  }
}

- (void) updateExtractionSettingLabel
{
  self.extractionSettingLabel.text = [NSString stringWithFormat:@"%1.0f", self.extractionSettingStepper.value];
}

- (void) haltExtractionTimer
{
  if (self.timer != nil)
  {
    [self.timer invalidate];
    self.timer = nil;
    
    //Return UI to "Start extraction" state.
    [self.extractionButton setTitle:@"Start extraction" forState:UIControlStateNormal];
    [self.extractionSettingStepper setEnabled:YES];
  }
}

/*****************************************************
                    UI Actions
*****************************************************/
#pragma mark - IBActions
- (IBAction)startExtraction:(id)sender {
  
  //Extraction in progress?
  if (self.timer == nil)
  {
    self.extractionProgress = 0.0f;
    [self.extractionButton setTitle:@"Stop extraction" forState:UIControlStateNormal];
    [self.extractionSettingStepper setEnabled:NO];
    
    self.timer = [NSTimer scheduledTimerWithTimeInterval:0.1f target:self selector:@selector(updateExtractionProgressLabel) userInfo:nil repeats:YES];
    
  }
  else
  {
    [self haltExtractionTimer];
  }
}

- (IBAction)setExtractionTimer:(id)sender {
  
  if (self.configuration != nil)
  {
    self.configuration.extractionTime = [NSNumber numberWithDouble:self.extractionSettingStepper.value];
    
    //Let's save our config.
    NSError* error = [(AppDelegate*) [[UIApplication sharedApplication] delegate] save];
    if (error != nil)
    {
      NSLog(@"InstaBean unable to save configuration!");
#warning TODO: Handle this error?
    }
  }
  
  [self updateExtractionSettingLabel];
}
@end