Kulexiu/KulexiuForStudent/KulexiuForStudent/Module/Mine/MineCourse/View/MyVideoCourseBodyView.m

//
//  MyVideoCourseBodyView.m
//  KulexiuForStudent
//
//  Created by 王智 on 2022/4/20.
//

#import "MyVideoCourseBodyView.h"
#import "VideoCourseCell.h"
#import "VideoCourseModel.h"
#import "KSBaseWKWebViewController.h"
#import "KSChoosePicker.h"
#import "MyVideoSearchView.h"
#import "KSChoosePicker.h"

@interface MyVideoCourseBodyView ()<UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout>

@property (nonatomic, strong) NSMutableArray *dataArray;

@property (nonatomic, strong) StateView *promptView;
@property (nonatomic, strong) UIView *promptPlaceView;

@property (nonatomic, assign) BOOL networkAvaiable; // 网络是否可用

@property (nonatomic, assign) BOOL isLoadMore;
@property (nonatomic, assign) NSInteger rows;
@property (nonatomic, assign) NSInteger pages;

@property (nonatomic, strong) NSString *searchKey;

@property (nonatomic, copy) MyVideoSearchView *sortView;

@end

@implementation MyVideoCourseBodyView

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor = HexRGB(0xf6f8f9);
        UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
        layout.sectionInset = UIEdgeInsetsMake(0, 14, 12, 14);
        
        self.collectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height) collectionViewLayout:layout];
        self.collectionView.backgroundColor = HexRGB(0xf6f8f9);
        self.collectionView.delegate = self;
        self.collectionView.dataSource = self;
        self.collectionView.showsVerticalScrollIndicator = NO;
        self.collectionView.showsHorizontalScrollIndicator = NO;
        [self.collectionView registerNib:[UINib nibWithNibName:@"VideoCourseCell" bundle:[NSBundle mainBundle]] forCellWithReuseIdentifier:@"VideoCourseCell"];
        [self addSubview:self.collectionView];
        MJWeakSelf;
        self.collectionView.mj_header = [KSGifRefreshHeader headerWithRefreshingBlock:^{
            [weakSelf resetParamenter];
            [weakSelf requestData];
        }];
        self.collectionView.mj_footer = [KSGifRefreshFooter footerWithRefreshingBlock:^{
            if (weakSelf.isLoadMore) {
                weakSelf.pages += 1;
                [weakSelf requestData];
            }
            else {
                [weakSelf.collectionView.mj_footer endRefreshingWithNoMoreData];
            }
        }];
    }
    return self;
}

- (void)endRefresh {
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [self.collectionView.mj_header endRefreshing];
        [self.collectionView.mj_footer endRefreshing];
    });
}

- (void)refreshAndRequestData {
    [self resetParamenter];
    [self requestData];
}

- (void)resetParamenter {
    self.isLoadMore = YES;
    self.pages = 1;
    self.rows = 10;
    self.dataArray = [NSMutableArray array];
    [self.collectionView.mj_footer resetNoMoreData];
    [self setPromptString:@"暂无课程" imageName:@"empty_course" inView:self.collectionView];
    [self.collectionView reloadData];
}

- (void)requestData {
    [KSNetworkingManager videoLessonGroupRequest:KS_POST lessonSubject:self.searchKey page:self.pages rows:self.rows success:^(NSDictionary * _Nonnull dic) {
        [self endRefresh];
        if ([dic integerValueForKey:@"code"] == 200 && [dic boolValueForKey:@"status"]) {
            NSArray *sourceArray = [[dic dictionaryValueForKey:@"data"] arrayValueForKey:@"rows"];
            for (NSDictionary *parm in sourceArray) {
                VideoCourseModel *model = [[VideoCourseModel alloc] initWithDictionary:parm];
                [self.dataArray addObject:model];
            }
            
            if (sourceArray.count < self.rows) {
                self.isLoadMore = NO;
            }
        }
        else {
            [self MBPShow:MESSAGEKEY];
        }
        [self.collectionView reloadData];
        [self changePromptLabelStateWithArray:self.dataArray];
    } faliure:^(NSError * _Nonnull error) {
        [self endRefresh];
        if (self.networkAvaiable == NO) {
            [self setPromptString:@"暂无网络" imageName:@"no_networking" inView:self.collectionView];
        }
        [self.dataArray removeAllObjects];
        [self.collectionView reloadData];
        [self changePromptLabelStateWithArray:self.dataArray];
    }];
}

- (void)beginRefreshImmediately {
    [self.collectionView.mj_header beginRefreshing];
}

- (void)selectCellAtIndexPath:(NSIndexPath *)indexPath {
    
    if (self.lastSelectedIndexPath == indexPath) {
        return;
    }
    if (self.lastSelectedIndexPath != nil) {
        UICollectionViewCell *cell = [self.collectionView cellForItemAtIndexPath:self.lastSelectedIndexPath];
        [cell setSelected:NO];
    }
    UICollectionViewCell *cell = [self.collectionView cellForItemAtIndexPath:indexPath];
    [cell setSelected:YES];
    self.lastSelectedIndexPath = indexPath;
}

- (void)layoutSubviews {
    [super layoutSubviews];
    CGFloat topHeight = 50.0f;
    self.collectionView.frame = CGRectMake(0, topHeight, self.bounds.size.width, self.bounds.size.height - topHeight);
    if (!_sortView) {
        _sortView = [MyVideoSearchView shareInstance];
        _sortView.frame = CGRectMake(0, 0, kScreenWidth, 50);
        MJWeakSelf;
        [_sortView sortAction:^{
            [weakSelf showSortView];
        }];

        [self addSubview:self.sortView];
    }
}

- (void)showSortView {
    if (self.subjectList.count) {
        NSMutableArray *nameArray = [NSMutableArray array];
        [nameArray addObject:@"全部"];
        for (NSDictionary *parm in self.subjectList) {
            [nameArray addObject:[parm stringValueForKey:@"subjectName"]];
        }
        MJWeakSelf;
        KSChoosePicker *picker = [[KSChoosePicker alloc] initWithTitle:@"声部筛选" sourceData:nameArray chooseReturnWithBlock:^(NSString * _Nonnull returnValue, NSInteger chooseIndex) {
            if (chooseIndex == 0) {
                weakSelf.sortView.sortTitleLabel.text = @"全部声部";
                weakSelf.searchKey = nil;
            }
            else {
                weakSelf.sortView.sortTitleLabel.text = returnValue;
                NSDictionary *parm = self.subjectList[chooseIndex-1];
                weakSelf.searchKey = [parm stringValueForKey:@"subjectId"];
            }
            self.sortView.arrowUp = NO;
            [weakSelf refreshAndRequestData];
        } cancel:^{
            self.sortView.arrowUp = NO;
        }];
        [picker showPicker];
    }
    else {
        [self MBPShow:@"无声部信息"];
        self.sortView.arrowUp = NO;
    }
}

- (void)beginFirstRefresh {
    if (!self.isHeaderRefreshed) {
        [self beginRefreshImmediately];
    }
}
#pragma mark ----- collection view
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
    return 1;
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    return self.dataArray.count;
}

- (__kindof UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    VideoCourseCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"VideoCourseCell" forIndexPath:indexPath];
    
    VideoCourseModel *model = [self.dataArray objectAtIndex:indexPath.row];
    BOOL isCheck = self.selectIndex != 0;
    [cell configSourceModel:model isInCheck:isCheck];
    return cell;
}

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    VideoCourseModel *model = [self.dataArray objectAtIndex:indexPath.row];
    NSString *url = [NSString stringWithFormat:@"%@%@%.0f", WEBHOST, @"/#/videoDetail?groupId=",model.internalBaseClassIdentifier];
    KSBaseWKWebViewController *ctrl = [[KSBaseWKWebViewController alloc] init];
    ctrl.url = url;
    [self.naviController pushViewController:ctrl animated:YES];
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    return CGSizeMake((kScreenWidth - 28 - 11) / 2.0f, 200);
}
/**
 设置没有数据时的显示
 
 @param promptString 提示语
 @param imgName 图片名称
 @param view 显示在什么地方
 */
- (void)setPromptString:(NSString *)promptString imageName:(NSString *)imgName inView:(UIView *)view {
    if (self.promptView != nil) {
        [self.promptView removeFromSuperview];
    }
    else {
        self.promptView = [[StateView alloc]init];
        self.promptView.frame = CGRectMake(0, 0, kScreenWidth, kScreenHeight - 300);
    }
    _promptPlaceView = view;
    //当请求不到数据时 ，自定义提示view 将会出现；
    self.promptView.imageName = imgName;
    self.promptView.alpha = 0.0f;
    [self.promptView setText:promptString];
    [view addSubview:self.promptView];
}

// 结束刷新后调用方法
- (void)changePromptLabelStateWithArray:(NSMutableArray *)array {
    NSInteger count;
    if (array.count) {
        count = array.count;
    } else {
        count = 0;
    }
    
    [UIView animateWithDuration:0.1 animations:^{
        [[self promptView] setAlpha:count ? 0.0f :1.0f ] ;
        
    }] ;
    
}

- (BOOL)networkAvaiable {
    return [self checkNetworkAvaiable];
}

- (BOOL)checkNetworkAvaiable {
    BOOL isExistenceNetwork = YES;
    Reachability *reach = [Reachability reachabilityWithHostName:@"www.apple.com"];
    switch ([reach currentReachabilityStatus]) {
        case NotReachable:
            isExistenceNetwork = NO;
            //NSLog(@"notReachable");
            break;
        case ReachableViaWiFi:
            isExistenceNetwork = YES;
            //NSLog(@"WIFI");
            break;
        case ReachableViaWWAN:
            isExistenceNetwork = YES;
            //NSLog(@"3G");
            break;
    }
    return isExistenceNetwork;
}



- (NSMutableArray *)dataArray {
    if (!_dataArray) {
        _dataArray = [NSMutableArray array];
    }
    return _dataArray;
}

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/

@end