//
//  KXTeachCycleView.m
//  CAISHEN
//
//  Created by kuxuan on 2017/11/1.
//  Copyright © 2017年 kuxuan. All rights reserved.
//

#import "KXTeachCycleView.h"


@interface KXTeachCycleView()<UIScrollViewDelegate>
@property (nonatomic,weak)UIScrollView *topScrollView;
@property (nonatomic,weak)NSTimer *scrollTimer;
@end

@implementation KXTeachCycleView

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        // Initialization code
        [self createView];
    }
    return self;
}
-(void)createView
{
    if (self.topScrollView) {
        [self.topScrollView removeFromSuperview];
    }
    //创建轮播
    UIScrollView *sc=[[UIScrollView alloc]initWithFrame:CGRectMake(0,0, SCREEN_WIDTH - 15,70)];
    self.topScrollView=sc;
    self.topScrollView.bounces = NO;
//    self.topScrollView.pagingEnabled = YES;
    self.topScrollView.showsHorizontalScrollIndicator = NO;
    self.topScrollView.showsVerticalScrollIndicator = NO;
    self.topScrollView.delegate = self;
    self.topScrollView.scrollEnabled=YES;
    self.topScrollView.tag=6666;
    [self addSubview:self.topScrollView];
    
}

-(void)setupTimer
{
    NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:3 target:self selector:@selector(automaticScroll) userInfo:nil repeats:YES];
    self.scrollTimer = timer;
    [[NSRunLoop mainRunLoop] addTimer:self.scrollTimer forMode:NSRunLoopCommonModes];
}

-(void)automaticScroll
{
    NSInteger index=self.topScrollView.contentOffset.x/(140);
    index=index+1;
    [UIView animateWithDuration:1 animations:^{
        self.topScrollView.contentOffset=CGPointMake((140)*index, 0);
    
    }];
    if (index==self.cycleArray.count+1) {
        [self.topScrollView setContentOffset:CGPointMake(140, 0) animated:NO];
    }
    else if (index==0) {
        [self.topScrollView setContentOffset:CGPointMake(140*self.cycleArray.count, 0) animated:NO];
    }
    else {
       
    }
}

#pragma mark - UIScrollViewDelegate

//- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
//{
//    if (scrollView.tag==6666) {
//        float pageNum=self.topScrollView.contentOffset.x/140;
//        int index = pageNum +0.5;
//        [UIView animateWithDuration:0.1 animations:^{
//            self.topScrollView.contentOffset=CGPointMake((140)*index, 0);
//            
//        }];
//        if (index==self.cycleArray.count+1) {
//            [self.topScrollView setContentOffset:CGPointMake(140, 0) animated:NO];
//            
//        }
//        else if (index==0) {
//            [self.topScrollView setContentOffset:CGPointMake(140*self.cycleArray.count, 0) animated:NO];
//            
//            
//        }
//        else {
//        }
//    }
//
//}
//
//- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
//{
//    
//    [self.scrollTimer invalidate];
//    self.scrollTimer = nil;
//    
//}
//
//- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
//{
//    
//    [self setupTimer];
//    
//}

//- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView
//{
//    if (scrollView.tag==6666) {
//        float pageNum=self.topScrollView.contentOffset.x/280.0;
//        int index = pageNum +0.3;
//        [UIView animateWithDuration:0.1 animations:^{
//            self.topScrollView.contentOffset=CGPointMake((280)*index, 0);
//
//        }];
//        if (index==self.cycleArray.count+1) {
//            [self.topScrollView setContentOffset:CGPointMake(280, 0) animated:NO];
//
//        }else if(index==0)
//        {
//            [self.topScrollView setContentOffset:CGPointMake(280*self.cycleArray.count, 0) animated:NO];
//
//
//        }else{
//
//        }
//    }
//
//}


- (void)setCycleArray:(NSArray *)cycleArray
{
    _cycleArray=cycleArray;
    
    for (int i=0; i<self.cycleArray.count; i++) {
        UIImageView *imageView=[[UIImageView alloc]init];
        imageView.frame=CGRectMake(i*140, 0,135, 70);
        imageView.userInteractionEnabled=YES;
        [imageView setExclusiveTouch:YES];
        NSString *imageString=cycleArray[i];
        [imageView sd_setImageWithURL:[NSURL URLWithString:imageString] placeholderImage:[UIImage imageNamed:@"placeholder_rectangle"] options:SDWebImageRefreshCached];
        imageView.tag=2345+i;
//        if (i==0) {
//            NSString *imageString=cycleArray[cycleArray.count-1];
//            [imageView sd_setImageWithURL:[NSURL URLWithString:imageString] placeholderImage:[UIImage imageNamed:@"placeholder_rectangle"] options:SDWebImageRefreshCached];
//        }else if (i==self.cycleArray.count+1){
//            NSString *imageString=cycleArray[0];
//            [imageView sd_setImageWithURL:[NSURL URLWithString:imageString] placeholderImage:[UIImage imageNamed:@"placeholder_rectangle"] options:SDWebImageRefreshCached];
//        }else{
//            NSString *imageString=cycleArray[i-1];
//            [imageView sd_setImageWithURL:[NSURL URLWithString:imageString] placeholderImage:[UIImage imageNamed:@"placeholder_rectangle"] options:SDWebImageRefreshCached];
//            imageView.tag=2345+i;
//        }
        
        UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction:)];
        [imageView addGestureRecognizer:tap];
        [self.topScrollView addSubview:imageView];
    }
    self.topScrollView.contentSize=CGSizeMake((self.cycleArray.count)*140, 0);
    
    self.topScrollView.contentOffset=CGPointMake(0, 0);
    
//    [self setupTimer];
}

-(void)dealloc
{
    self.topScrollView.delegate=nil;
}


-(void)tapAction:(UITapGestureRecognizer *)tap
{
    [_delegate clickScrollViewItemWithIndex:tap.view.tag-2345];
}

@end