//
//  HJCycleView.m
//  IphoneBIMe
//
//  Created by ZhangJF on 2022/10/28.
//  Copyright © 2022 ProBIM. All rights reserved.
//

#import "HJCycleView.h"
#import "CycleCollectionViewCell.h"

#define kSelfWidth self.frame.size.width
#define kSelfHeight self.frame.size.height
static NSString *const ImageCellID = @"ImageCellID";
@interface HJCycleView()<UICollectionViewDelegate,UICollectionViewDataSource,UIScrollViewDelegate, SDPhotoBrowserDelegate>{
    NSTimer *_timer; //暂时已把定时关闭
}
@property(nonatomic,strong)UICollectionView *collectionView;
@property(nonatomic,strong)UIPageControl *pageControl;
@property(nonatomic,strong)NSMutableArray *dataArr;
@end

@implementation HJCycleView
-(instancetype)initWithFrame:(CGRect)frame andData:(NSArray*)dataArr{
    if (self = [super initWithFrame:frame]) {
        self.dataArr = [NSMutableArray arrayWithArray:dataArr];
        [self setUI];
    }
    
    return self;
}

- (void)setUI{
    
    [self addSubview:self.collectionView];
    [self addSubview:self.pageControl];
}

#pragma mark delegate && dataSource
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
    CycleCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:ImageCellID forIndexPath:indexPath];
    cell.imageUrl = [_dataArr objectAtIndex:indexPath.item];
    return cell;
}

- (void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath{
    if (self.returnBlock) {
        self.returnBlock(indexPath.row);
    }
}
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    SDPhotoBrowser *photoBrowser = [SDPhotoBrowser new];
    photoBrowser.delegate = self;
    photoBrowser.currentImageIndex = indexPath.item;
    photoBrowser.imageCount = _dataArr.count;
//    photoBrowser.sourceImagesContainerView = self.collectionView;
    [photoBrowser show];
}


- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{
    return 1;
}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
    return _dataArr.count;
}

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
//    [_timer setFireDate:[NSDate distantFuture]];
}

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
    NSInteger  page = scrollView.contentOffset.x / kSelfWidth;
    _pageControl.currentPage = page;
}

#pragma mark getter
- (UICollectionView *)collectionView{
    if (!_collectionView) {
        UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
        layout.itemSize = CGSizeMake(kSelfWidth, kSelfHeight);
        layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
        layout.minimumLineSpacing = 0;
        _collectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(0, 0, kSelfWidth, kSelfHeight) collectionViewLayout:layout];
        [_collectionView registerClass:[CycleCollectionViewCell class] forCellWithReuseIdentifier:ImageCellID];
        _collectionView.bounces = YES;
        _collectionView.showsHorizontalScrollIndicator = NO;
        _collectionView.pagingEnabled = YES;
        _collectionView.delegate = self;
        _collectionView.dataSource = self;
        _collectionView.backgroundColor = [UIColor whiteColor];
    }
    return _collectionView;
}

- (UIPageControl *)pageControl{
    if (!_pageControl) {
        _pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(0, kSelfHeight - 30, kSelfWidth, 10)];
        _pageControl.currentPage = 0;
        _pageControl.numberOfPages = self.dataArr.count;
        _pageControl.backgroundColor = [UIColor clearColor];
        _pageControl.pageIndicatorTintColor = [UIColor lightGrayColor];
        _pageControl.currentPageIndicatorTintColor = [UIColor colorWithRed:0 green:122 blue:255 alpha:1];
    }
    return _pageControl;
}

- (NSMutableArray *)dataArr{
    if (!_dataArr) {
        _dataArr = [NSMutableArray array];
    }
    return _dataArr;
}
- (void)setData:(NSArray *)data {
    _data = data;
    self.dataArr = [NSMutableArray arrayWithArray:data];
    _pageControl.currentPage = 1;
    _pageControl.numberOfPages = self.dataArr.count;
    [_collectionView reloadData];
}
-(void)dealloc{
//    if (_timer) {
//        [_timer invalidate];
//        _timer = nil;
//    }
}
#pragma mark - SDPhotoBrowserDelegate
- (UIImage *)photoBrowser:(SDPhotoBrowser *)browser placeholderImageForIndex:(NSInteger)index {
    // 不建议用此种方式获取小图，这里只是为了简单实现展示而已
    CycleCollectionViewCell *cell = (CycleCollectionViewCell *)[self collectionView:self.collectionView cellForItemAtIndexPath:[NSIndexPath indexPathForItem:index inSection:0]];
    return cell.imageV.image;
}
@end