//
//  UIBarButtonItem+Extension.m
//  JWlive
//
//  Created by pican zhang on 16/3/18.
//  Copyright © 2016年 pican zhang. All rights reserved.
//

#import "UIBarButtonItem+Extension.h"
#import <objc/runtime.h>

@implementation BackView

- (instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor = [UIColor clearColor];
    }
    return self;
}
-(void)layoutSubviews{
    [super layoutSubviews];
    UINavigationBar *navBar = nil;
    UIView *aView = self.superview;
    while (aView) {
        if ([aView isKindOfClass:[UINavigationBar class]]) {
            navBar = (UINavigationBar *)aView;
            break;
        }
        aView = aView.superview;
    }
    UINavigationItem * navItem =   (UINavigationItem *)navBar.items.lastObject;
    UIBarButtonItem *leftItem = navItem.leftBarButtonItem;
    UIBarButtonItem *rightItem = navItem.rightBarButtonItem;
    if (rightItem) {//右边按钮
        BackView *backView = rightItem.customView;
        if ([backView isKindOfClass:self.class]) {
            backView.btn.x = backView.frame.size.width -backView.btn.frame.size.width;
           
        }
    }
    if (leftItem) {//左边按钮
        //        BackView *backView = leftItem.customView;
        
    }
}
@end

@implementation UIBarButtonItem (createBtnItem)
+ (instancetype)itemWithImage:(NSString *)image highImage:(NSString *)highImage  target:(id)target action:(SEL)action{
    return [self itemWithImage:image title:nil highImage:highImage contentEdge: UIEdgeInsetsMake(0,0,0,0)target:target action:(SEL)action];
}
+ (instancetype)itemWithImage:(NSString *)image
                        title:(NSString *)title highImage:(NSString *)highImage contentEdge:(UIEdgeInsets)contentEdge target:(id)target action:(SEL)action{

    UIButton *btn = [[UIButton alloc] init];
    [btn setImage:[UIImage imageNamed:image] forState:(UIControlStateNormal)];
    [btn setTitle:title forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    btn.titleLabel.font = [UIFont systemFontOfSize:14];
    btn.frame = CGRectMake(0, 0, 44, 44);
    btn.contentEdgeInsets = contentEdge;
    btn.backgroundColor = [UIColor whiteColor];
    [btn setEnlargeEdge:30];
    [btn addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
//    UIView* containerView = [[UIView alloc]init];
//    containerView.backgroundColor = [UIColor greenColor];
//    [containerView addSubview:btn];
//    if (contentEdge.right<0) {
//        containerView.frame = CGRectMake(-20, 0, 44, 44);
//    }else{
//        containerView.frame = CGRectMake(20, 0, 44, 44);
//    }
    return [[UIBarButtonItem alloc] initWithCustomView:btn];
   
//    BackView *customView = [[BackView alloc] initWithFrame:CGRectMake(0, 0, 44, 44)];
//    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:target action:action];
//    [customView addGestureRecognizer:tap];
//    customView.btn = [UIButton buttonWithType:UIButtonTypeCustom];
//    customView.btn.titleLabel.font = [UIFont systemFontOfSize:14.0];
//   // customView.btn.contentEdgeInsets = contentEdge;
//    [customView.btn setImage:[UIImage imageNamed:image] forState:UIControlStateNormal];
//    [customView.btn setImage:[UIImage imageNamed:highImage] forState:UIControlStateHighlighted];
//    [customView.btn setTitle:title forState:UIControlStateNormal];
//    [customView.btn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
//    if (image) {
//       customView.btn.frame = CGRectMake(0, 0, customView.btn.currentImage.size.width, customView.btn.currentBackgroundImage.size.height);
//    }else{
//       customView.btn.frame = CGRectMake(0, 0, 44, 44);
//    }
//    customView.btn.frame = customView.bounds;
//    customView.btn.centerY = customView.center.y;
//    [customView.btn addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
//    [customView addSubview:customView.btn];
//    return  [[UIBarButtonItem alloc] initWithCustomView:customView];
    
}
+ (instancetype)itemWithFrame:(CGRect)frame Title:(NSString*)title titleFont:(UIFont*)font titleColor:(UIColor*)titleColor bkgColor:(UIColor*)bkgColor contentEdge:(UIEdgeInsets)contentEdge hasBorder:(BOOL)hasBorder borderBkgColor:(UIColor*)borderBkgColor target:(id)target action:(SEL)action{
   
    UIButton *btn = [[UIButton alloc] initWithFrame:frame];
    btn.backgroundColor = bkgColor;
    btn.titleLabel.textAlignment = UIBaselineAdjustmentAlignCenters;
    btn.titleLabel.font = font;
    [btn setTitle:title forState:(UIControlStateNormal)];
    [btn setTitleColor:titleColor forState:(UIControlStateNormal)];
    [btn setEnlargeEdgeWithTop:20 right:20 bottom:20 left:20];
//    btn.contentEdgeInsets = contentEdge;
    if (hasBorder) {
        btn.layer.borderColor = borderBkgColor.CGColor;
        btn.layer.borderWidth = 1.0;
        btn.layer.cornerRadius = 4.0;
        btn.layer.masksToBounds = YES;
    }
//    btn.titleEdgeInsets = UIEdgeInsetsMake(0,0, 0,0);
    [btn addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
    return [[UIBarButtonItem alloc] initWithCustomView:btn];

}
+ (instancetype)itemWithFrame:(CGRect)frame Title:(NSString*)title titleFont:(UIFont*)font titleColor:(UIColor*)titleColor target:(id)target action:(SEL)action{
    
    UIButton *btn = [[UIButton alloc] initWithFrame:frame];
    btn.titleLabel.textAlignment = UIBaselineAdjustmentAlignCenters;
    btn.titleLabel.font = font;
    btn.layer.cornerRadius = 2.0;
    btn.layer.borderWidth = 1.0;
    btn.layer.borderColor = [UIColor whiteColor].CGColor;
    [btn setTitle:title forState:(UIControlStateNormal)];
    [btn setTitleColor:titleColor forState:(UIControlStateNormal)];
    [btn addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
    [btn setEnlargeEdgeWithTop:20 right:20 bottom:20 left:20];
    return [[UIBarButtonItem alloc] initWithCustomView:btn];
    
}

+(UIBarButtonItem *) text:(NSString *)text contentEdge:(UIEdgeInsets)contentEdge  selector:(SEL)selecor target:(id)target
{
   CGFloat width= [text sizeWithAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15]}].width;
    UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, width, 30)];
    [button setTitle:text forState:UIControlStateNormal];
    button.titleLabel.font = [UIFont systemFontOfSize:15];
    [button addTarget:target action:selecor forControlEvents:UIControlEventTouchUpInside];
//     button.contentEdgeInsets = contentEdge;
    return [[UIBarButtonItem alloc] initWithCustomView:button];
    
}
+(UIBarButtonItem *) icon:(NSString *)icon selector:(SEL)selecor target:(id)target
{
    UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 32, 32)];
    [button setImage:[UIImage imageNamed:icon] forState:UIControlStateNormal];
    [button addTarget:target action:selecor forControlEvents:UIControlEventTouchUpInside];
    return [[UIBarButtonItem alloc] initWithCustomView:button];
}


+(UIBarButtonItem *) back:(NSString *)title selector:(SEL)selecor target:(id)target
{
  
   CGFloat width= [title sizeWithAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:18]}].width;
    UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, width, 30)];
    [button setTitle:title forState:UIControlStateNormal];
    button.titleLabel.font = [UIFont systemFontOfSize:18];
    [button addTarget:target action:selecor forControlEvents:UIControlEventTouchUpInside];
    [button setImage:[UIImage imageNamed:@"nav_back_normal"] forState:UIControlStateNormal];
    [button setTitleEdgeInsets:UIEdgeInsetsMake(0, -5, 0, 0)];
    [button setImageEdgeInsets:UIEdgeInsetsMake(1, -15, 0, 0)];
    return [[UIBarButtonItem alloc] initWithCustomView:button];
}

+(UIBarButtonItem*)itemWithImage:(NSString *)image title:(NSString *)title target:(id)target action:(SEL)action{
    UIView *backView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 60, 44)];
    UIButton *btn = [[UIButton alloc] init];
    [btn setTitle:title forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    btn.titleLabel.font = [UIFont systemFontOfSize:12];
    btn.frame = CGRectMake(0, 0, 47, 44);
    [btn setTitleEdgeInsets:UIEdgeInsetsMake(0, -8, 0, 0)];
   // btn.lineBreakMode = NSLineBreakByTruncatingTail;
    [btn addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
    [backView addSubview:btn];
    UIImageView *imgV = [[UIImageView alloc]initWithFrame:CGRectMake(42, 18, 13, 7)];
    imgV.contentMode = UIViewContentModeScaleAspectFill;
    imgV.clipsToBounds = YES;
    imgV.image = [UIImage imageNamed:image];
    [backView addSubview:imgV];
    return [[UIBarButtonItem alloc] initWithCustomView:backView];
}
NSString *const ZYBarButtonItem_hasBadgeKey = @"ZYBarButtonItem_hasBadgeKey";
NSString *const ZYBarButtonItem_badgeKey = @"ZYBarButtonItem_badgeKey";
NSString *const ZYBarButtonItem_badgeSizeKey = @"ZYBarButtonItem_badgeSizeKey";
NSString *const ZYBarButtonItem_badgeOriginXKey = @"ZYBarButtonItem_badgeOriginXKey";
NSString *const ZYBarButtonItem_badgeOriginYKey = @"ZYBarButtonItem_badgeOriginYKey";
NSString *const ZYBarButtonItem_badgeColorKey = @"ZYBarButtonItem_badgeColorKey";
@end

@implementation UIBarButtonItem (Badge)
@dynamic hasBadge;
@dynamic badgeSize,badgeOriginX,badgeOriginY;


- (void)initBadge
{
    UIView *superview = nil;
    
    if (self.customView) {
        superview = self.customView;
        superview.clipsToBounds = NO;
    } else if ([self respondsToSelector:@selector(view)] && [(id)self view]) {
        superview = [(id)self view];
    }
    [superview addSubview:self.badge];
    
    // 默认设置 default configure
    self.badgeColor = [UIColor redColor];
    self.badgeSize = 8;
    self.badgeOriginX = 26;
    self.badgeOriginY = 11;
    self.badge.hidden = YES;
}

- (void)showBadge
{
    self.badge.hidden = NO;
}

- (void)hideBadge
{
    self.badge.hidden = YES;
}

- (void)refreshBadge
{
    self.badge.frame = (CGRect){self.badgeOriginX,self.badgeOriginY,self.badgeSize,self.badgeSize};
    self.badge.backgroundColor = self.badgeColor;
    self.badge.layer.cornerRadius = self.badgeSize/2;
}


#pragma mark ---------- badge getter & setter function -----------

- (UIView *)badge
{
    UIView *badge = (UIView *)objc_getAssociatedObject(self, &ZYBarButtonItem_badgeKey);
    if (!badge) {
        badge = [[UIView alloc] init];
        [self setBadge:badge];
        [self initBadge];
    }
    return badge;
}

- (void)setBadge:(UIView *)badge
{
    objc_setAssociatedObject(self, &ZYBarButtonItem_badgeKey, badge, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

- (UIColor *)badgeColor
{
    return objc_getAssociatedObject(self, &ZYBarButtonItem_badgeColorKey);
}

- (void)setBadgeColor:(UIColor *)badgeColor
{
    objc_setAssociatedObject(self, &ZYBarButtonItem_badgeColorKey, badgeColor, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
    if (self.badge) {
        [self refreshBadge];
    }
}

-(CGFloat)badgeSize {
    NSNumber *number = objc_getAssociatedObject(self, &ZYBarButtonItem_badgeSizeKey);
    return number.floatValue;
}

-(void)setBadgeSize:(CGFloat)badgeSize
{
    NSNumber *number = [NSNumber numberWithDouble:badgeSize];
    objc_setAssociatedObject(self, &ZYBarButtonItem_badgeSizeKey, number, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
    if (self.badge) {
        [self refreshBadge];
    }
}

-(CGFloat)badgeOriginX {
    NSNumber *number = objc_getAssociatedObject(self, &ZYBarButtonItem_badgeOriginXKey);
    return number.floatValue;
}

-(void)setBadgeOriginX:(CGFloat)badgeOriginX
{
    NSNumber *number = [NSNumber numberWithDouble:badgeOriginX];
    objc_setAssociatedObject(self, &ZYBarButtonItem_badgeOriginXKey, number, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
    if (self.badge) {
        [self refreshBadge];
    }
}

-(CGFloat)badgeOriginY {
    NSNumber *number = objc_getAssociatedObject(self, &ZYBarButtonItem_badgeOriginYKey);
    return number.floatValue;
}

-(void)setBadgeOriginY:(CGFloat)badgeOriginY
{
    NSNumber *number = [NSNumber numberWithDouble:badgeOriginY];
    objc_setAssociatedObject(self, &ZYBarButtonItem_badgeOriginYKey, number, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
    if (self.badge) {
        [self refreshBadge];
    }
}

- (void)setHasBadge:(BOOL)hasBadge
{
    if (hasBadge) {
        [self showBadge];
    }else{
        [self hideBadge];
    }
    
    NSNumber *number = [NSNumber numberWithBool:hasBadge];
    objc_setAssociatedObject(self, &ZYBarButtonItem_hasBadgeKey, number, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

- (BOOL)hasBadge
{
    NSNumber *number = objc_getAssociatedObject(self, &ZYBarButtonItem_hasBadgeKey);
    return number.boolValue;
}

@end