//
//  LOTScene.m
//  LottieAnimator
//
//  Created by Brandon Withrow on 12/14/15.
//  Copyright © 2015 Brandon Withrow. All rights reserved.
//

#import "LOTComposition.h"
#import "LOTLayer.h"
#import "LOTAssetGroup.h"
#import "LOTLayerGroup.h"

@implementation LOTComposition

- (instancetype)initWithJSON:(NSDictionary *)jsonDictionary
             withAssetBundle:(NSBundle *)bundle {
  self = [super init];
  if (self) {
    [self _mapFromJSON:jsonDictionary withAssetBundle:bundle];
  }
  return self;
}

- (void)_mapFromJSON:(NSDictionary *)jsonDictionary
     withAssetBundle:(NSBundle *)bundle {
  NSNumber *width = jsonDictionary[@"w"];
  NSNumber *height = jsonDictionary[@"h"];
  if (width && height) {
    CGRect bounds = CGRectMake(0, 0, width.floatValue, height.floatValue);
    _compBounds = bounds;
  }
  
  _startFrame = [jsonDictionary[@"ip"] copy];
  _endFrame = [jsonDictionary[@"op"] copy];
  _framerate = [jsonDictionary[@"fr"] copy];
  
  if (_startFrame && _endFrame && _framerate) {
    NSInteger frameDuration = (_endFrame.integerValue - _startFrame.integerValue) - 1;
    NSTimeInterval timeDuration = frameDuration / _framerate.floatValue;
    _timeDuration = timeDuration;
  }
  
  NSArray *assetArray = jsonDictionary[@"assets"];
  if (assetArray.count) {
    _assetGroup = [[LOTAssetGroup alloc] initWithJSON:assetArray withAssetBundle:bundle];
  }
  
  NSArray *layersJSON = jsonDictionary[@"layers"];
  if (layersJSON) {
    _layerGroup = [[LOTLayerGroup alloc] initWithLayerJSON:layersJSON
                                            withAssetGroup:_assetGroup];
  }
  
  [_assetGroup finalizeInitialization];

}
  
- (void)setRootDirectory:(NSString *)rootDirectory {
    _rootDirectory = rootDirectory;
    self.assetGroup.rootDirectory = rootDirectory;
}
  
@end