/* 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 "OverrideViewController.h"
static NSString *kLinkAttributeName = @"PlaceKittenNodeLinkAttributeName";

@interface OverrideNode()
@property (nonatomic, strong) ASTextNode *textNode;
@property (nonatomic, strong) ASButtonNode *buttonNode;
@end

@implementation OverrideNode

- (instancetype)init
{
  if (!(self = [super init]))
    return nil;
  
  _textNode = [[ASTextNode alloc] init];
  _textNode.flexGrow = YES;
  _textNode.flexShrink = YES;
  _textNode.maximumNumberOfLines = 3;
  [self addSubnode:_textNode];
  
  _buttonNode = [[ASButtonNode alloc] init];
  [_buttonNode setAttributedTitle:[[NSAttributedString alloc] initWithString:@"Close"] forState:ASControlStateNormal];
  [self addSubnode:_buttonNode];
  
  self.backgroundColor = [UIColor lightGrayColor];
  
  return self;
}

- (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize
{
  CGFloat pointSize = 16.f;
  ASEnvironmentDisplayTraits displayTraits = self.environmentState.displayTraits;
  if (displayTraits.horizontalSizeClass == UIUserInterfaceSizeClassRegular) {
    // This should never happen because we override the VC's display traits to always be compact.
    pointSize = 100;
  }
  
  NSString *blurb = @"kittens courtesy placekitten.com";
  NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:blurb];
  [string addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"HelveticaNeue" size:pointSize] range:NSMakeRange(0, blurb.length)];
  [string addAttributes:@{
                          kLinkAttributeName: [NSURL URLWithString:@"http://placekitten.com/"],
                          NSForegroundColorAttributeName: [UIColor grayColor],
                          NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle | NSUnderlinePatternDot),
                          }
                  range:[blurb rangeOfString:@"placekitten.com"]];
  
  _textNode.attributedString = string;
  
  ASStackLayoutSpec *stackSpec = [ASStackLayoutSpec verticalStackLayoutSpec];
  stackSpec.children = @[_textNode, _buttonNode];
  stackSpec.spacing = 10;
  return [ASInsetLayoutSpec insetLayoutSpecWithInsets:UIEdgeInsetsMake(40, 20, 20, 20) child:stackSpec];
}

@end

@interface OverrideViewController ()

@end

@implementation OverrideViewController

- (instancetype)init
{
  OverrideNode *overrideNode = [[OverrideNode alloc] init];
  
  if (!(self = [super initWithNode:overrideNode]))
    return nil;
  
  [overrideNode.buttonNode addTarget:self action:@selector(closeTapped:) forControlEvents:ASControlNodeEventTouchUpInside];
  return self;
}

- (void)closeTapped:(id)sender
{
  if (self.closeBlock) {
    self.closeBlock();
  }
}

@end