#import "SPRootViewController.h"

#import "CALayer.h"
#import "CAPackage.h"
#import "CAState.h"
#import "CAStateController.h"

@interface SPRootViewController ()
- (CGImageRef)getImage:(NSString *)named;
@end

@implementation SPRootViewController

- (void)loadView {
  [super loadView];

  // Let's get this party started! Load our package.
  NSURL *caarPath = [[NSBundle bundleForClass:NSClassFromString(@"PKPass")]
      URLForResource:@"ShredderSheet"
       withExtension:@"caar"];
  CAPackage *package = [CAPackage packageWithContentsOfURL:caarPath
                                                      type:kCAPackageTypeArchive
                                                   options:nil
                                                     error:nil];

  // Determine the frame of the unarchived root layer.
  CALayer *rootLayer = [package rootLayer];
  CGRect rootLayerFrame = [rootLayer frame];

  // We can create a new view to harass.
  // Exhilerating!
  UIView *layerView = [[UIView alloc] initWithFrame:rootLayerFrame];
  [[layerView layer] addSublayer:rootLayer];
  [self.view addSubview:layerView];

  // Ensure our package's root layer does similar, I... think.
  [[package publishedObjectWithName:@"Root"] setFrame:rootLayerFrame];

  // Oh, our very own state controller!
  // We've grown up so quickly.
  CAStateController *stateController =
      [[CAStateController alloc] initWithLayer:rootLayer];

  // Configure our initial state.
  CAState *shreddingState = [[rootLayer states] objectAtIndex:2];

  [stateController setInitialStatesOfLayer:rootLayer];
  [stateController setState:shreddingState
                    ofLayer:rootLayer
            transitionSpeed:1.0f];

  // Have our wonderful, extremely 2011/2012-esque metal design.
  // It's local! There's no reason not to.
  [[package publishedObjectWithName:@"shredderFront"]
      setContents:(id)[self getImage:@"ShredderMetal"]];
  [[package publishedObjectWithName:@"shredderBack"]
      setContents:(id)[self getImage:@"ShredderMetal"]];

  // Set what we're shredding.
  [[package publishedObjectWithName:@"cardFrontUnshredded"]
      setContents:(id)[[UIColor redColor] CGColor]];
  [[package publishedObjectWithName:@"cardFrontShredded"]
      setContents:(id)[[UIColor blueColor] CGColor]];
  [[package publishedObjectWithName:@"cardBackUnshredded"]
      setContents:(id)[[UIColor blueColor] CGColor]];
}

- (CGImageRef)getImage:(NSString *)named {
  NSBundle *passKitBundle =
      [NSBundle bundleForClass:NSClassFromString(@"PKPass")];
  NSString *filename = [NSString stringWithFormat:@"%@@2x", named];
  NSString *path = [passKitBundle pathForResource:filename ofType:@"png"];

  UIImage *image = [UIImage imageWithContentsOfFile:path];
  return [image CGImage];
}

@end