/* This file provided by Facebook is for non-commercial testing and evaluation
 * purposes only.  Facebook reserves all rights not expressly granted.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#import "SupplementaryNode.h"

#import <AsyncDisplayKit/ASDisplayNode+Subclasses.h>
#import <AsyncDisplayKit/ASInsetLayoutSpec.h>
#import <AsyncDisplayKit/ASCenterLayoutSpec.h>

static CGFloat kInsets = 15.0;

@implementation SupplementaryNode {
  ASTextNode *_textNode;
}

- (instancetype)initWithText:(NSString *)text
{
  self = [super init];
  if (self != nil) {
    _textNode = [[ASTextNode alloc] init];
    _textNode.attributedString = [[NSAttributedString alloc] initWithString:text
                                                                 attributes:[self textAttributes]];
    [self addSubnode:_textNode];
  }
  return self;
}

- (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize
{
  ASCenterLayoutSpec *center = [[ASCenterLayoutSpec alloc] init];
  center.centeringOptions = ASCenterLayoutSpecCenteringXY;
  center.child = _textNode;
  UIEdgeInsets insets = UIEdgeInsetsMake(kInsets, kInsets, kInsets, kInsets);
  return [ASInsetLayoutSpec insetLayoutSpecWithInsets:insets child:center];
}

#pragma mark - Text Formatting

- (NSDictionary *)textAttributes
{
  return @{
           NSFontAttributeName: [UIFont systemFontOfSize:18.0],
           NSForegroundColorAttributeName: [UIColor whiteColor],
           };
}

@end