//

//  BlockAlertView.m

//

//

#import "BlockAlertView.h"

#import "BlockBackground.h"

#import "BlockUI.h"

@implementation BlockAlertView

@synthesize view = _view;

@synthesize backgroundImage = _backgroundImage;

@synthesize vignetteBackground = _vignetteBackground;

static UIImage *background = nil;

static UIImage *backgroundlandscape = nil;

static UIFont *titleFont = nil;

static UIFont *messageFont = nil;

static UIFont *buttonFont = nil;

#pragma mark - init

+ (void)initialize

{

	if (self == [BlockAlertView class])

	{

		background = [UIImage imageNamed:kAlertViewBackground];

		background =

		    [[background stretchableImageWithLeftCapWidth:0

		                                     topCapHeight:kAlertViewBackgroundCapHeight] retain];

		backgroundlandscape = [UIImage imageNamed:kAlertViewBackgroundLandscape];

		backgroundlandscape = [[backgroundlandscape

		    stretchableImageWithLeftCapWidth:0

		                        topCapHeight:kAlertViewBackgroundCapHeight] retain];

		titleFont = [kAlertViewTitleFont retain];

		messageFont = [kAlertViewMessageFont retain];

		buttonFont = [kAlertViewButtonFont retain];

	}

}

+ (BlockAlertView *)alertWithTitle:(NSString *)title message:(NSString *)message

{

	return [[[BlockAlertView alloc] initWithTitle:title message:message] autorelease];

}

+ (void)showInfoAlertWithTitle:(NSString *)title message:(NSString *)message

{

	BlockAlertView *alert = [[BlockAlertView alloc] initWithTitle:title message:message];

	[alert setCancelButtonWithTitle:NSLocalizedString(@"Dismiss", nil) block:nil];

	[alert show];

	[alert release];

}

+ (void)showErrorAlert:(NSError *)error

{

	BlockAlertView *alert = [[BlockAlertView alloc]

	    initWithTitle:NSLocalizedString(@"Operation Failed", nil)

	          message:[NSString

	                      stringWithFormat:NSLocalizedString(

	                                           @"The operation did not complete successfully: %@",

	                                           nil),

	                                       error]];

	[alert setCancelButtonWithTitle:@"Dismiss" block:nil];

	[alert show];

	[alert release];

}

///////////////////////////////////////////////////////////////////////////////////////////////////

#pragma mark - NSObject

- (void)addComponents:(CGRect)frame

{

	if (_title)

	{

		CGSize size = [_title sizeWithFont:titleFont

		                 constrainedToSize:CGSizeMake(frame.size.width - kAlertViewBorder * 2, 1000)

		                     lineBreakMode:NSLineBreakByWordWrapping];

		UILabel *labelView = [[UILabel alloc]

		    initWithFrame:CGRectMake(kAlertViewBorder, _height,

		                             frame.size.width - kAlertViewBorder * 2, size.height)];

		labelView.font = titleFont;

		labelView.numberOfLines = 0;

		labelView.lineBreakMode = NSLineBreakByWordWrapping;

		labelView.textColor = kAlertViewTitleTextColor;

		labelView.backgroundColor = [UIColor clearColor];

		labelView.textAlignment = NSTextAlignmentCenter;

		labelView.shadowColor = kAlertViewTitleShadowColor;

		labelView.shadowOffset = kAlertViewTitleShadowOffset;

		labelView.text = _title;

		[_view addSubview:labelView];

		[labelView release];

		_height += size.height + kAlertViewBorder;

	}

	if (_message)

	{

		CGSize size =

		    [_message sizeWithFont:messageFont

		         constrainedToSize:CGSizeMake(frame.size.width - kAlertViewBorder * 2, 1000)

		             lineBreakMode:NSLineBreakByWordWrapping];

		UILabel *labelView = [[UILabel alloc]

		    initWithFrame:CGRectMake(kAlertViewBorder, _height,

		                             frame.size.width - kAlertViewBorder * 2, size.height)];

		labelView.font = messageFont;

		labelView.numberOfLines = 0;

		labelView.lineBreakMode = NSLineBreakByWordWrapping;

		labelView.textColor = kAlertViewMessageTextColor;

		labelView.backgroundColor = [UIColor clearColor];

		labelView.textAlignment = NSTextAlignmentCenter;

		labelView.shadowColor = kAlertViewMessageShadowColor;

		labelView.shadowOffset = kAlertViewMessageShadowOffset;

		labelView.text = _message;

		[_view addSubview:labelView];

		[labelView release];

		_height += size.height + kAlertViewBorder;

	}

}

- (void)setupDisplay

{

	[[_view subviews] enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {

		[obj removeFromSuperview];

	}];

	UIWindow *parentView = [BlockBackground sharedInstance];

	CGRect frame = parentView.bounds;

	frame.origin.x = floorf((frame.size.width - background.size.width) * 0.5);

	frame.size.width = background.size.width;

	UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];

	if (UIInterfaceOrientationIsLandscape(orientation))

	{

		frame.size.width += 150;

		frame.origin.x -= 75;

	}

	_view.frame = frame;

	_height = kAlertViewBorder + 15;

	if (NeedsLandscapePhoneTweaks)

	{

		_height -= 15; // landscape phones need to trimmed a bit

	}

	[self addComponents:frame];

	if (_shown)

		[self show];

}

- (id)initWithTitle:(NSString *)title message:(NSString *)message

{

	self = [super init];

	if (self)

	{

		_title = [title copy];

		_message = [message copy];

		_view = [[UIView alloc] init];

		_view.autoresizingMask =

		    UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleTopMargin |

		    UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;

		_blocks = [[NSMutableArray alloc] init];

		[[NSNotificationCenter defaultCenter]

		    addObserver:self

		       selector:@selector(setupDisplay)

		           name:UIApplicationDidChangeStatusBarOrientationNotification

		         object:nil];

		if ([self class] == [BlockAlertView class])

			[self setupDisplay];

		_vignetteBackground = NO;

	}

	return self;

}

- (void)dealloc

{

	[_title release];

	[_message release];

	[_backgroundImage release];

	[_view release];

	[_blocks release];

	[super dealloc];

}

///////////////////////////////////////////////////////////////////////////////////////////////////

#pragma mark - Public

- (void)addButtonWithTitle:(NSString *)title color:(NSString *)color block:(void (^)())block

{

	[_blocks addObject:[NSArray arrayWithObjects:block ? [[block copy] autorelease] : [NSNull null],

	                                             title, color, nil]];

}

- (void)addButtonWithTitle:(NSString *)title block:(void (^)())block

{

	[self addButtonWithTitle:title color:@"gray" block:block];

}

- (void)setCancelButtonWithTitle:(NSString *)title block:(void (^)())block

{

	[self addButtonWithTitle:title color:@"black" block:block];

}

- (void)setDestructiveButtonWithTitle:(NSString *)title block:(void (^)())block

{

	[self addButtonWithTitle:title color:@"red" block:block];

}

- (void)show

{

	_shown = YES;

	BOOL isSecondButton = NO;

	NSUInteger index = 0;

	for (NSUInteger i = 0; i < _blocks.count; i++)

	{

		NSArray *block = [_blocks objectAtIndex:i];

		NSString *title = [block objectAtIndex:1];

		NSString *color = [block objectAtIndex:2];

		UIImage *image =

		    [UIImage imageNamed:[NSString stringWithFormat:@"alert-%@-button.png", color]];

		image = [image stretchableImageWithLeftCapWidth:(int)(image.size.width + 1) >> 1

		                                   topCapHeight:0];

		CGFloat maxHalfWidth = floorf((_view.bounds.size.width - kAlertViewBorder * 3) * 0.5);

		CGFloat width = _view.bounds.size.width - kAlertViewBorder * 2;

		CGFloat xOffset = kAlertViewBorder;

		if (isSecondButton)

		{

			width = maxHalfWidth;

			xOffset = width + kAlertViewBorder * 2;

			isSecondButton = NO;

		}

		else if (i + 1 < _blocks.count)

		{

			// In this case there's another button.

			// Let's check if they fit on the same line.

			CGSize size = [title sizeWithFont:buttonFont

			                      minFontSize:10

			                   actualFontSize:nil

			                         forWidth:_view.bounds.size.width - kAlertViewBorder * 2

			                    lineBreakMode:NSLineBreakByClipping];

			if (size.width < maxHalfWidth - kAlertViewBorder)

			{

				// It might fit. Check the next Button

				NSArray *block2 = [_blocks objectAtIndex:i + 1];

				NSString *title2 = [block2 objectAtIndex:1];

				size = [title2 sizeWithFont:buttonFont

				                minFontSize:10

				             actualFontSize:nil

				                   forWidth:_view.bounds.size.width - kAlertViewBorder * 2

				              lineBreakMode:NSLineBreakByClipping];

				if (size.width < maxHalfWidth - kAlertViewBorder)

				{

					// They'll fit!

					isSecondButton = YES; // For the next iteration

					width = maxHalfWidth;

				}

			}

		}

		else if (_blocks.count == 1)

		{

			// In this case this is the ony button. We'll size according to the text

			CGSize size = [title sizeWithFont:buttonFont

			                      minFontSize:10

			                   actualFontSize:nil

			                         forWidth:_view.bounds.size.width - kAlertViewBorder * 2

			                    lineBreakMode:UILineBreakModeClip];

			size.width = MAX(size.width, 80);

			if (size.width + 2 * kAlertViewBorder < width)

			{

				width = size.width + 2 * kAlertViewBorder;

				xOffset = floorf((_view.bounds.size.width - width) * 0.5);

			}

		}

		UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];

		button.frame = CGRectMake(xOffset, _height, width, kAlertButtonHeight);

		button.titleLabel.font = buttonFont;

		if (IOS_LESS_THAN_6)

		{

#pragma clang diagnostic push

#pragma clang diagnostic ignored "-Wdeprecated-declarations"

			button.titleLabel.minimumFontSize = 10;

#pragma clang diagnostic pop

		}

		else

		{

			button.titleLabel.adjustsFontSizeToFitWidth = YES;

			button.titleLabel.adjustsLetterSpacingToFitWidth = YES;

			button.titleLabel.minimumScaleFactor = 0.1;

		}

		button.titleLabel.textAlignment = NSTextAlignmentCenter;

		button.titleLabel.shadowOffset = kAlertViewButtonShadowOffset;

		button.backgroundColor = [UIColor clearColor];

		button.tag = i + 1;

		[button setBackgroundImage:image forState:UIControlStateNormal];

		[button setTitleColor:kAlertViewButtonTextColor forState:UIControlStateNormal];

		[button setTitleShadowColor:kAlertViewButtonShadowColor forState:UIControlStateNormal];

		[button setTitle:title forState:UIControlStateNormal];

		button.accessibilityLabel = title;

		[button addTarget:self

		              action:@selector(buttonClicked:)

		    forControlEvents:UIControlEventTouchUpInside];

		[_view addSubview:button];

		if (!isSecondButton)

			_height += kAlertButtonHeight + kAlertViewBorder;

		index++;

	}

	_height += 10; // Margin for the shadow

	if (_height < background.size.height)

	{

		CGFloat offset = background.size.height - _height;

		_height = background.size.height;

		CGRect frame;

		for (NSUInteger i = 0; i < _blocks.count; i++)

		{

			UIButton *btn = (UIButton *)[_view viewWithTag:i + 1];

			frame = btn.frame;

			frame.origin.y += offset;

			btn.frame = frame;

		}

	}

	CGRect frame = _view.frame;

	frame.origin.y = -_height;

	frame.size.height = _height;

	_view.frame = frame;

	UIImageView *modalBackground = [[UIImageView alloc] initWithFrame:_view.bounds];

	if (UIInterfaceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation]))

		modalBackground.image = backgroundlandscape;

	else

		modalBackground.image = background;

	modalBackground.contentMode = UIViewContentModeScaleToFill;

	modalBackground.autoresizingMask =

	    UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

	[_view insertSubview:modalBackground atIndex:0];

	[modalBackground release];

	if (_backgroundImage)

	{

		[BlockBackground sharedInstance].backgroundImage = _backgroundImage;

		[_backgroundImage release];

		_backgroundImage = nil;

	}

	[BlockBackground sharedInstance].vignetteBackground = _vignetteBackground;

	[[BlockBackground sharedInstance] addToMainWindow:_view];

	__block CGPoint center = _view.center;

	center.y = floorf([BlockBackground sharedInstance].bounds.size.height * 0.5) + kAlertViewBounce;

	_cancelBounce = NO;

	[UIView animateWithDuration:0.4

	    delay:0.0

	    options:UIViewAnimationCurveEaseOut

	    animations:^{

		    [BlockBackground sharedInstance].alpha = 1.0f;

		    _view.center = center;

	    }

	    completion:^(BOOL finished) {

		    if (_cancelBounce)

			    return;

		    [UIView animateWithDuration:0.1

		        delay:0.0

		        options:0

		        animations:^{

			        center.y -= kAlertViewBounce;

			        _view.center = center;

		        }

		        completion:^(BOOL finished) {

			        [[NSNotificationCenter defaultCenter]

			            postNotificationName:@"AlertViewFinishedAnimations"

			                          object:nil];

		        }];

	    }];

	[self retain];

}

- (void)dismissWithClickedButtonIndex:(NSInteger)buttonIndex animated:(BOOL)animated

{

	_shown = NO;

	[[NSNotificationCenter defaultCenter] removeObserver:self];

	if (buttonIndex >= 0 && buttonIndex < [_blocks count])

	{

		id obj = [[_blocks objectAtIndex:buttonIndex] objectAtIndex:0];

		if (![obj isEqual:[NSNull null]])

		{

			((void (^)())obj)();

		}

	}

	if (animated)

	{

		[UIView animateWithDuration:0.1

		    delay:0.0

		    options:0

		    animations:^{

			    CGPoint center = _view.center;

			    center.y += 20;

			    _view.center = center;

		    }

		    completion:^(BOOL finished) {

			    [UIView animateWithDuration:0.4

			        delay:0.0

			        options:UIViewAnimationCurveEaseIn

			        animations:^{

				        CGRect frame = _view.frame;

				        frame.origin.y = -frame.size.height;

				        _view.frame = frame;

				        [[BlockBackground sharedInstance] reduceAlphaIfEmpty];

			        }

			        completion:^(BOOL finished) {

				        [[BlockBackground sharedInstance] removeView:_view];

				        [_view release];

				        _view = nil;

				        [self autorelease];

			        }];

		    }];

	}

	else

	{

		[[BlockBackground sharedInstance] removeView:_view];

		[_view release];

		_view = nil;

		[self autorelease];

	}

}

///////////////////////////////////////////////////////////////////////////////////////////////////

#pragma mark - Action

- (void)buttonClicked:(id)sender

{

	/* Run the button's block */

	int buttonIndex = [sender tag] - 1;

	[self dismissWithClickedButtonIndex:buttonIndex animated:YES];

}

@end