//
//  FasterViewController.m
//  Faster
//
//  Created by Ani Vemprala on 12/24/10.
//  Copyright 2010 Ani Vemprala. All rights reserved.
//

#import "FasterViewController.h"

@implementation FasterViewController
@synthesize numbers;
@synthesize textbox;

#pragma mark -
#pragma mark App logic

- (void) backgroundCalculations {
	// Run in background:
	[self performSelectorInBackground:@selector(primeCalcs) withObject:nil];
	// Run in foreground UI thread:
	//[self performSelector:@selector(primeCalcs) withObject:nil];
}

- (void) primeCalcs {
	NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
	for (int i=1; i <= 100000; i++) {
		for (int j=1; j <= i; j++) {
			if (i % j == 0 && i != j && j != 1) {
				break;
			}
			else if (i % j == 0 && i == j) {
				[numbers addObject:[NSNumber numberWithInt:i]];
				NSLog(@"%d is prime - array is now %d big", i, [numbers count]);
			}
		}
	}
	NSUInteger count = [numbers count];
	[self.textbox setText:[NSString stringWithFormat:@"%d", count]];
	[pool release];
}

#pragma mark -
#pragma mark View logic


// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
    [super viewDidLoad];
	UILabel* labelOne = [[UILabel alloc] initWithFrame:CGRectMake(10.0, 10.0, 500.0, 20.0)];
	labelOne.text = @"Finding prime numbers btw 1 and 1MM";
	[self.view addSubview:labelOne];
	[labelOne release];

	UIButton* startButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
	[startButton setFrame:CGRectMake(10.0, 50.0, 100.0, 20.0)];
	[startButton setTitle:@"Calculate" forState:UIControlStateNormal];
	[startButton addTarget:self action:@selector(backgroundCalculations) forControlEvents:UIControlEventTouchUpInside];
	[self.view addSubview:startButton];

	numbers = [[NSMutableArray alloc] init];
}

- (void)dealloc {
    [numbers release];
    [super dealloc];
}

@end