/*

Copyright (C) 2015 Apple Inc. All Rights Reserved.

See LICENSE.txt for this sample’s licensing information

Abstract:

Displays the Atomic Element information with a link to Wikipedia.

*/

#import "AtomicElementFlippedView.h"

#import "AtomicElementView.h"

#import "AtomicElement.h"

@interface AtomicElementFlippedView ()

@property (nonatomic,strong) UIButton *wikipediaButton;

@end

@implementation AtomicElementFlippedView

- (void)setupUserInterface {

    CGRect buttonFrame = CGRectMake(10.0, 209.0, 234.0, 37.0);

    // create the button

    self.wikipediaButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];

    self.wikipediaButton.frame=buttonFrame;

    [self.wikipediaButton setTitle:@"View at Wikipedia" forState:UIControlStateNormal]; 

    // Center the text on the button, considering the button's shadow

    self.wikipediaButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;

    self.wikipediaButton.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;

    [self.wikipediaButton addTarget:self action:@selector(jumpToWikipedia:) forControlEvents:UIControlEventTouchUpInside];

    [self addSubview:self.wikipediaButton];

}

- (instancetype)initWithFrame:(CGRect)frame {

    if (self = [super initWithFrame:frame]) {

        [self setAutoresizesSubviews:YES];

        [self setupUserInterface];

        // set the background color of the view to clearn

        self.backgroundColor=[UIColor clearColor];

    }

    return self;

}

- (void)jumpToWikipedia:(id)sender {

    // create the string that points to the correct Wikipedia page for the element name

    NSString *wikiPageString = [NSString stringWithFormat:@"http://en.wikipedia.org/wiki/%@", self.element.name];

    if (![[UIApplication sharedApplication] openURL:[NSURL URLWithString:wikiPageString]])

    {

        // there was an error trying to open the URL. for the moment we'll simply ignore it.

    }

}

- (void)drawRect:(CGRect)rect {

    // get the background image for the state of the element

    // position it appropriately and draw the image

    //

    UIImage *backgroundImage = [self.element stateImageForAtomicElementView];

    CGRect elementSymbolRectangle = CGRectMake(0, 0, [backgroundImage size].width, [backgroundImage size].height);

    [backgroundImage drawInRect:elementSymbolRectangle];

    // all the text is drawn in white

    [[UIColor whiteColor] set];

    // draw the element number

    NSDictionary *font = @{NSFontAttributeName: [UIFont boldSystemFontOfSize:32]};

    CGPoint point = CGPointMake(10,5);

    [[NSString stringWithFormat:@"%@", self.element.atomicNumber] drawAtPoint:point withAttributes:font];

    // draw the element symbol

    CGSize stringSize = [self.element.symbol sizeWithAttributes:font];

    point = CGPointMake((self.bounds.size.width-stringSize.width-10),5);

    [self.element.symbol drawAtPoint:point withAttributes:font];

    // draw the element name

    font = @{NSFontAttributeName: [UIFont boldSystemFontOfSize:36]};

    stringSize = [self.element.name sizeWithAttributes:font];

    point = CGPointMake((self.bounds.size.width-stringSize.width)/2,50);

    [self.element.name drawAtPoint:point withAttributes:font];

    float verticalStartingPoint = 95;

    // draw the element weight

    font = @{NSFontAttributeName: [UIFont boldSystemFontOfSize:14]};

    NSString *atomicWeightString = [NSString stringWithFormat:@"Atomic Weight: %@", self.element.atomicWeight];

    stringSize = [atomicWeightString sizeWithAttributes:font];

    point = CGPointMake((self.bounds.size.width-stringSize.width)/2, verticalStartingPoint);

    [atomicWeightString drawAtPoint:point withAttributes:font];

    // draw the element state

    NSString *stateString=[NSString stringWithFormat:@"State: %@", self.element.state];

    stringSize = [stateString sizeWithAttributes:font];

    point = CGPointMake((self.bounds.size.width-stringSize.width)/2, verticalStartingPoint+20);

    [stateString drawAtPoint:point withAttributes:font];

    // draw the element period

    NSString *periodString = [NSString stringWithFormat:@"Period: %@", self.element.period];

    stringSize = [periodString sizeWithAttributes:font];

    point = CGPointMake((self.bounds.size.width-stringSize.width)/2, verticalStartingPoint+40);

    [periodString drawAtPoint:point withAttributes:font];

    // draw the element group

    NSString *groupString = [NSString stringWithFormat:@"Group: %@", self.element.group];

    stringSize = [groupString sizeWithAttributes:font];

    point = CGPointMake((self.bounds.size.width-stringSize.width)/2, verticalStartingPoint+60);

    [groupString drawAtPoint:point withAttributes:font];

    // draw the discovery year

    NSString *discoveryYearString = [NSString stringWithFormat:@"Discovered: %@", self.element.discoveryYear];

    stringSize = [discoveryYearString sizeWithAttributes:font];

    point = CGPointMake((self.bounds.size.width-stringSize.width)/2, verticalStartingPoint+80);

    [discoveryYearString drawAtPoint:point withAttributes:font];

}

@end