//
//  RQMultiButtons.m
//  jiaPei
//
//  Created by 张嵘 on 2018/12/26.
//  Copyright © 2018 JCZ. All rights reserved.
//

#import "RQMultiButtons.h"

@interface RQCustomMultiButtons : NSObject
@property NSInteger customId;
@property (strong, nonatomic) UIImage *icon;
@property (strong, nonatomic) NSString *title;
@property (strong, nonatomic) UIColor *backgroundColor;
@end

@implementation RQCustomMultiButtons
@end

@interface RQMultiButtons ()
@property (strong, nonatomic) NSMutableArray *buttons;
@property (strong, nonatomic) NSMutableDictionary *buttonIndexTypes;
@property (strong, nonatomic) UIView *faderView;
@end

@implementation RQMultiButtons
@synthesize delegate = _delegate, parentView;

- (instancetype)initCenteredInWindowWithRadius:(NSInteger)radiusValue {
	UIWindow *window = [[[UIApplication sharedApplication] delegate] window];
	return [self initWithPoint:CGPointMake((CGFloat) (window.frame.size.width * 0.5), (CGFloat) (window.frame.size.height * 0.5)) radius:radiusValue inView:window];
}

- (instancetype)initWithPoint:(CGPoint)point radius:(NSInteger)radiusValue inView:(UIView *)inView {
	self = [super initWithFrame:CGRectMake(point.x - radiusValue, point.y - radiusValue, 2 * radiusValue, 2 * radiusValue)];
	if (self) {
		self.radius = radiusValue;
		self.bubbleRadius = 40;
		self.parentView = inView;
		self.faderAlpha = 0.15;
		self.faderColor = [UIColor blackColor];
		
		self.customButtons = [[NSMutableArray alloc] init];
		
		self.dismissOnBackgroundTap = YES;
		UITapGestureRecognizer *tapges = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(shareViewBackgroundTapped:)];
		[self addGestureRecognizer:tapges];
	}
	return self;
}

#pragma mark -
#pragma mark Actions

- (void)buttonWasTapped:(UIButton *)button {
	NSInteger buttonType = [_buttonIndexTypes[@(button.tag)] integerValue];
	[self shareButtonTappedWithType:buttonType];
}

- (void)shareButtonTappedWithType:(NSInteger)buttonType {
	[self hide];
	if([self.delegate respondsToSelector:@selector(rqMultiButtons:tappedButtonWithType:)]) {
		[self.delegate rqMultiButtons:self tappedButtonWithType:buttonType];
	}
}

#pragma mark -
#pragma mark Methods

-(void)show
{
	if(!self.isAnimating)
	{
		self.isAnimating = YES;
		
		[self.parentView addSubview:self];
		
		// Create background
		_faderView = [[UIView alloc] initWithFrame:self.parentView.bounds];
		_faderView.backgroundColor = self.faderColor;
		_faderView.alpha = 0.0f;
		
		if (self.dismissOnBackgroundTap) {
			UITapGestureRecognizer *tapges = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(shareViewBackgroundTapped:)];
			[_faderView addGestureRecognizer:tapges];
		}
		
		[parentView insertSubview:_faderView belowSubview:self];
		
		[UIView animateWithDuration:0.25 animations:^{
			_faderView.alpha = self.faderAlpha;
		}];
		// --
		
		if(_buttons) {
			_buttons = nil;
		}
		
		_buttons = [[NSMutableArray alloc] init];
		_buttonIndexTypes = [[NSMutableDictionary alloc] init];
		
		for (RQCustomMultiButtons *customButton in self.customButtons)
		{
			[self createButtonWithIcon:customButton.icon title:customButton.title backgroundColor:customButton.backgroundColor andButtonId:customButton.customId];
		}
		
		if(_buttons.count == 0) return;
		
		float bubbleDistanceFromPivot = self.radius - self.bubbleRadius;
		
		float bubblesBetweenAngel = 360 / _buttons.count / 2;
		float angely = (float) ((180 - bubblesBetweenAngel) * 0.5);
		float startAngel = 270 - angely;
		
		NSMutableArray *coordinates = [NSMutableArray array];
		
		for (NSUInteger i = 0; i < _buttons.count; ++i)
		{
			UIButton *button = _buttons[i];
			button.tag = i;
			
			float angle = startAngel + i * bubblesBetweenAngel;
			float x = (float) (cos(angle * M_PI / 180) * bubbleDistanceFromPivot + self.radius);
			float y = (float) (sin(angle * M_PI / 180) * bubbleDistanceFromPivot + self.radius);
			
			[coordinates addObject:@{@"x" : @(x), @"y" : @(y)}];
			
			button.transform = CGAffineTransformMakeScale(0.001, 0.001);
			button.center = CGPointMake(self.radius, self.radius);
		}
		
		NSInteger inetratorI = 0;
		for (NSDictionary *coordinate in coordinates)
		{
			UIButton *button = _buttons[inetratorI];
			float delayTime = (float) (inetratorI * 0.1);
			[self performSelector:@selector(showBubbleWithAnimation:) withObject:@{@"button" : button, @"coordinate" : coordinate} afterDelay:delayTime];
			++inetratorI;
		}
	}
}
-(void)hide
{
	if(!self.isAnimating)
	{
		self.isAnimating = YES;
		NSInteger inetratorI = 0;
		for (UIButton *button in _buttons)
		{
			CGFloat delayTime = (CGFloat) (inetratorI * 0.1);
			[self performSelector:@selector(hideBubbleWithAnimation:) withObject:button afterDelay:delayTime];
			++inetratorI;
		}
	}
}

#pragma mark -
#pragma mark Helper functions

-(void)shareViewBackgroundTapped:(UITapGestureRecognizer *)tapGesture
{
	[self hide];
}

-(void)showBubbleWithAnimation:(NSDictionary *)info
{
	UIButton *bubble = (UIButton *) info[@"button"];
	NSDictionary *coordinate = (NSDictionary *) info[@"coordinate"];
	
	[UIView animateWithDuration:0.25 animations:^{
		bubble.center = CGPointMake([coordinate[@"x"] floatValue], [coordinate[@"y"] floatValue]);
		bubble.alpha = 1;
		bubble.transform = CGAffineTransformMakeScale(1.2, 1.2);
	} completion:^(BOOL finished) {
		[UIView animateWithDuration:0.15 animations:^{
			bubble.transform = CGAffineTransformMakeScale(0.8, 0.8);
		} completion:^(BOOL finished) {
			[UIView animateWithDuration:0.15 animations:^{
				bubble.transform = CGAffineTransformMakeScale(1, 1);
			} completion:^(BOOL finished) {
				if(bubble.tag == _buttons.count - 1) self.isAnimating = NO;
				bubble.layer.shadowColor = [UIColor blackColor].CGColor;
				bubble.layer.shadowOpacity = 0.2;
				bubble.layer.shadowOffset = CGSizeMake(0, 1);
				bubble.layer.shadowRadius = 2;
			}];
		}];
	}];
}
- (void)hideBubbleWithAnimation:(UIButton *)bubble {
	[UIView animateWithDuration:0.2 animations:^{
		bubble.transform = CGAffineTransformMakeScale(1.2, 1.2);
	} completion:^(BOOL finished) {
		[UIView animateWithDuration:0.25 animations:^{
			bubble.center = CGPointMake(self.radius, self.radius);
			bubble.transform = CGAffineTransformMakeScale(0.001, 0.001);
			bubble.alpha = 0;
		} completion:^(BOOL finished) {
			if(bubble.tag == _buttons.count - 1) {
				self.isAnimating = NO;
				self.hidden = YES;
				
				[UIView animateWithDuration:0.25 animations:^{
					_faderView.alpha = 0;
				} completion:^(BOOL finished) {
					[_faderView removeFromSuperview];
					if([self.delegate respondsToSelector:@selector(rqMultiButtonsDidHide:)]) {
						[self.delegate rqMultiButtonsDidHide:self];
					}
					[self removeFromSuperview];
				}];
			}
			[bubble removeFromSuperview];
		}];
	}];
}

- (void)createButtonWithIcon:(UIImage *)icon title:(NSString *)title backgroundColor:(UIColor *)color andButtonId:(NSInteger)buttonId {
	UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
	[button addTarget:self action:@selector(buttonWasTapped:) forControlEvents:UIControlEventTouchUpInside];
	button.frame = CGRectMake(0, 0, 2 * self.bubbleRadius, 2 * self.bubbleRadius);
	
	// Circle background
	UIView *circle = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 2 * self.bubbleRadius, 2 * self.bubbleRadius)];
	circle.backgroundColor = color;
	circle.layer.cornerRadius = self.bubbleRadius;
	circle.layer.masksToBounds = YES;
	circle.opaque = NO;
	circle.alpha = 0.97;
	
	// Circle icon
	UIImageView *iconView = [[UIImageView alloc] initWithImage:icon];
	CGRect f = iconView.frame;
	f.origin.x = (CGFloat) ((circle.frame.size.width - f.size.width) * 0.5);
	f.origin.y = [title isEqualToString:@"随机练习"]? (CGFloat) ((circle.frame.size.height - f.size.height) * 0.5 - 5) : ((CGFloat) ((circle.frame.size.height - f.size.height) * 0.5 + 10));
	iconView.frame = f;
	[circle addSubview:iconView];
	
	UILabel *titleLabel  = [[UILabel alloc] initWithFrame:CGRectMake(0, 2 * self.bubbleRadius - 20, 2 * self.bubbleRadius, 10)];
	titleLabel.text = title;
	titleLabel.font = [UIFont systemFontOfSize:10];
	titleLabel.textColor = defGreen;
	titleLabel.textAlignment = NSTextAlignmentCenter;
	[circle addSubview:titleLabel];
	
	[button setBackgroundImage:[self imageWithView:circle] forState:UIControlStateNormal];
	
	[_buttons addObject:button];
	_buttonIndexTypes[@(_buttons.count - 1)] = @(buttonId);
	
	[self addSubview:button];
}

- (void)createButtonWithIcon:(NSString *)iconName backgroundColor:(NSInteger)rgb andType:(RQMultiButtonsType)type {
	NSBundle *classBundle = [NSBundle bundleForClass:[self class]];
	NSBundle *resourcesBundle = [NSBundle bundleWithPath:[NSString stringWithFormat:@"%@/AAShareBubbles.bundle", classBundle.bundlePath]];
	UIImage *icon = [UIImage imageNamed:iconName inBundle:resourcesBundle compatibleWithTraitCollection:nil];
	UIColor *color = [self colorFromRGB:rgb];
	[self createButtonWithIcon:icon title:@"顺序练习" backgroundColor:color andButtonId:type];
}

- (void)addCustomButtonWithIcon:(UIImage *)icon title:(NSString *)title backgroundColor:(UIColor *)color andButtonId:(NSInteger)buttonId {
	NSAssert(buttonId >= 100, @"Custom Button Ids must be >= 100");
	
	RQCustomMultiButtons *customButton = [[RQCustomMultiButtons alloc] init];
	customButton.backgroundColor = color;
	customButton.icon = icon;
	customButton.title = title;
	customButton.customId = buttonId;
	[self.customButtons addObject:customButton];
}

- (UIColor *)colorFromRGB:(NSInteger)rgb {
	return [UIColor colorWithRed:((float)((rgb & 0xFF0000) >> 16))/255.0 green:((float)((rgb & 0xFF00) >> 8))/255.0 blue:((float)(rgb & 0xFF))/255.0 alpha:1.0];
}

- (UIImage *)imageWithView:(UIView *)view {
	UIGraphicsBeginImageContextWithOptions(view.bounds.size, view.opaque, 0.0);
	[view.layer renderInContext:UIGraphicsGetCurrentContext()];
	UIImage * img = UIGraphicsGetImageFromCurrentImageContext();
	UIGraphicsEndImageContext();
	return img;
}



@end