#import "KRImageViewer.h"

@interface ViewController ()<KRImageViewerDelegate>

@property (nonatomic, strong) KRImageViewer *krImageViewer;

@end

@implementation ViewController

@synthesize krImageViewer;

- (void)viewDidLoad
{
    [super viewDidLoad];
    _krImageViewer = [[KRImageViewer alloc] initWithDragMode:krImageViewerModeOfBoth];
    _krImageViewer.delegate                    = self;
    _krImageViewer.maxConcurrentOperationCount = 1;
    _krImageViewer.dragDisapperMode            = krImageViewerDisapperAfterMiddle;
    _krImageViewer.allowOperationCaching       = NO;
    _krImageViewer.timeout                     = 30.0f;
    _krImageViewer.doneWording                 = @"DONE";
    _krImageViewer.cancelWording               = @"CANCEL";
    //Auto supports the rotations.
    _krImageViewer.supportsRotations           = YES;
    //It'll release caches when caches of image over than X photos, but it'll be holding current image to display on the viewer.
    _krImageViewer.overCacheCountRelease       = 200;
    //Sorting Rule, Default ASC is YES, DESC is NO.
    _krImageViewer.sortAsc                     = YES;

    //Since we need to download from URLs, hence maybe you will see "nothing" in some methods.
    [self preloads];

    [_krImageViewer setBrowsingHandler:^(NSInteger browsingPage)
    {
        //Current Browsing Page.
        //...Do Something.
    }];

    [_krImageViewer setScrollingHandler:^(NSInteger scrollingPage)
    {
        //Current Scrolling Page.
        //...Do Something.
    }];

}

-(void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    //Recommends to use the keyWindow to show. ( It always be front. )
    [_krImageViewer useKeyWindow];

    //To set the superview at show ( You can setup this method with your custom view to be parent view to show ).
    //[_krImageViewer resetView:self.view];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];

}

-(BOOL)shouldAutorotate
{
    return YES;
}

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskAll;
}

#pragma Method Samples
-(void)preloads
{
    //To setup the Keys and URLs.
    NSDictionary *_downloads = [NSDictionary dictionaryWithObjectsAndKeys:
                                @"http://farm9.staticflickr.com/8459/7945134514_e5a779ee5f_s.jpg", @"1",
                                @"http://farm9.staticflickr.com/8435/7944303392_a856d79802_s.jpg", @"2",
                                nil];
    //We suggest the to preload the Images.
    [_krImageViewer preloadImageURLs:_downloads];
}

-(void)followImageIdToFindScrollPage
{
    //To find the id '3' to setup default show up.
    [_krImageViewer findImageScrollPageWithId:@"2"];
}

-(IBAction)browsingPreloads:(id)sender
{
    _krImageViewer.scrollToPage = 2;
    [_krImageViewer start];
}

-(IBAction)browsingURLs:(id)sender
{
    NSDictionary *_downloads = [NSDictionary dictionaryWithObjectsAndKeys:
                                @"http://farm9.staticflickr.com/8459/7945134514_e5a779ee5f_s.jpg", @"1",
                                @"http://farm9.staticflickr.com/8435/7944303392_a856d79802_s.jpg", @"2",
                                nil];

    //Another browsing method of the images.
    [_krImageViewer browseImageURLs:_downloads];

    //Or you can browse an image as you wanna watch.
    //[_krImageViewer browseOneImageURL:@"http://farm9.staticflickr.com/8449/7943919662_67f7345f8b_s.jpg"];
}

-(IBAction)browsingImages:(id)sender
{
    //Or you can browse UIImages.
    NSArray *_directWatchs = [NSArray arrayWithObjects:
                              [UIImage imageNamed:@"image1.png"],
                              [UIImage imageNamed:@"image2.png"],
                              [UIImage imageNamed:@"image3.png"],
                              nil];
    [_krImageViewer browseImages:_directWatchs];
}

//Recommends to use this method.
-(IBAction)browsingImagesPageByPage:(id)sender
{
    //When you gonna scroll the ImageViewer, it will Page by Page to download the image and show it.
    NSDictionary *_downloads = [NSDictionary dictionaryWithObjectsAndKeys:
                                @"http://farm9.staticflickr.com/8459/7945134514_e5a779ee5f_s.jpg", @"1",
                                @"http://farm9.staticflickr.com/8435/7944303392_a856d79802_s.jpg", @"2",
                                @"http://farm9.staticflickr.com/8449/7943919662_67f7345f8b_s.jpg", @"3",
                                nil];
    //Presents pictures in follow your displaying rules.
    _krImageViewer.forceDisplays = [NSMutableArray arrayWithObjects:@"3", @"1", @"2", nil];
    //Now, the firstShowImageId:@"2" will sort in last one and display it first.
    [_krImageViewer browsePageByPageImageURLs:_downloads startIn:@"2"];
}

-(IBAction)startWatchingRotationsByYourself:(id)sender
{
    [_krImageViewer startWatchRotations];
}

-(IBAction)stopWatchingRotations:(id)sender
{
    [_krImageViewer stopWatchRotations];
}

-(IBAction)stopWatchingRotationsAndBackToInitialOrientation:(id)sender
{
    [_krImageViewer toInitialRotation];
}

#pragma KRImageViewerDelegate
-(void)krImageViewerIsScrollingToPage:(NSInteger)_scrollingPage
{
    //The ImageViewer is Scrolling to which page and trigger here.
    //...
}

@end