KouDaiProject/YouHuiProject/YouHui/GoodsCommunity/KBGoosCommun...

//
//  KBGoosCommunityViewController.m
//  YouHuiProject
//
//  Created by 小花 on 2018/11/9.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "KBGoosCommunityViewController.h"
#import "KBNoDataMsgView.h"
#import "KBGoodsCommunityCell.h"
#import "KBGoodDetailViewController.h"

static NSString *communityGoodCell = @"communityGoodCell";
static NSString *communityHeader = @"communityHeader";

@interface KBGoosCommunityViewController ()
<
UICollectionViewDelegate,
UICollectionViewDataSource,
UICollectionViewDelegateFlowLayout
>
{
    NSInteger _page;
    ActivityIndicatorView *_indicatorView;
}
@property (nonatomic, strong) UICollectionView          *collectionView;
@property (nonatomic, strong) NSMutableArray            *dataArray;
@property (nonatomic, strong) KBNoDataMsgView           *noDataView;
@end

@implementation KBGoosCommunityViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self configNavigationBar];
    [self initSubViews];
    [self loadData];
}

-(void)viewDidAppear:(BOOL)animated{
    [super viewDidAppear:animated];
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
}


- (void)configNavigationBar{
    [self.navigationBar setNavTitle:@"优选推荐"];
    self.view.backgroundColor = [UIColor whiteColor];
    self.navigationBar.navTitleLabel.textColor = [UIColor whiteColor];
    self.navigationBar.backgroundColor = [UIColor homeRedColor];
    self.navigationBar.showNavigationBarBottomLine = YES;
}

- (void)initSubViews {
    _page = 1;
    
    UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc]init];
    self.collectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, NavBarHeight, SCREEN_WIDTH, SCREEN_HEIGHT-NavBarHeight-TabbarHeight) collectionViewLayout:flowLayout];
    flowLayout.minimumLineSpacing = 5;
    flowLayout.minimumInteritemSpacing = 1;
    self.collectionView.showsVerticalScrollIndicator=NO;
    self.collectionView.showsHorizontalScrollIndicator=NO;
    self.collectionView.backgroundColor = [UIColor yhGrayColor];
    self.collectionView.dataSource = self;
    self.collectionView.delegate = self;
    [self.collectionView registerClass:[KBGoodsCommunityCell class] forCellWithReuseIdentifier:communityGoodCell];
    [self.collectionView registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:communityHeader];
    
    [self.view addSubview:self.collectionView];
    
    MJRefreshNormalHeader *refreshHeader = [MJRefreshNormalHeader headerWithRefreshingBlock:^{
        _page = 1;
        [self.collectionView.mj_footer resetNoMoreData];
        [self loadData];
    }];
    refreshHeader.lastUpdatedTimeLabel.hidden=YES;
    [refreshHeader setTitle:@"数据正在刷新" forState:MJRefreshStateRefreshing];
    self.collectionView.mj_header = refreshHeader;
    
    self.collectionView.mj_footer = [MJRefreshBackNormalFooter footerWithRefreshingBlock:^{
        _page++;
        [self loadData];
    }];
    
    ActivityIndicatorView *indicatorView = [ActivityIndicatorView showInView:self.view frame:CGRectMake(0, NavBarHeight, SCREEN_WIDTH, SCREEN_HEIGHT-NavBarHeight-TabbarHeight)];
    _indicatorView = indicatorView;
    
    [self.collectionView addSubview:self.noDataView];
}

- (void)loadData {
    NSString *url = [NSString stringWithFormat:@"%@/api/v2/goods/preference",BaseURL];
    [KBHttp post:url params:@{@"page":@(_page)} success:^(id json) {
        
        if ([self.collectionView.mj_header isRefreshing]) {
            [self.dataArray removeAllObjects];
        }
        NSArray *list = [NSArray yy_modelArrayWithClass:[KBChildGoodModel class] json:json[@"data"]];
        [self.dataArray addObjectsFromArray:list];
        if (list.count == 0 && _page == 1) {
            self.noDataView.hidden = NO;
        }else {
            self.noDataView.height = YES;
        }
        if (list.count == 0) {
            [self.collectionView.mj_footer endRefreshingWithNoMoreData];
        }else {
            [self.collectionView.mj_footer endRefreshing];
        }
        
        [self.collectionView reloadData];
        [self.collectionView.mj_header endRefreshing];
        [_indicatorView stopAnimating];
    } failure:^(NSError *error) {
        [_indicatorView stopAnimating];
    }];
}


#pragma mark ---
#pragma mark ============ UICollectionView Delegate &&  DataSource ==========
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    
    return self.dataArray.count;
}

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

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    
    return CGSizeMake(SCREEN_WIDTH-20, 185);
}





- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    
    KBGoodsCommunityCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:communityGoodCell forIndexPath:indexPath];
    KBChildGoodModel *model = self.dataArray[indexPath.row];
    cell.model = model;
    
    return cell;
}


#pragma mark -内边距
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
    return UIEdgeInsetsMake(10, 0, 0, 0);
}

#pragma mark -行间距
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
    
    return 10;
}

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    KBChildGoodModel *model = self.dataArray[indexPath.row];
    DetailRequestModel *requestModel = [[DetailRequestModel alloc] initWithChildModel:model];
    KBGoodDetailViewController *detail = [[KBGoodDetailViewController alloc] init];
    detail.requestModel = requestModel;
    [self.navigationController pushViewController:detail animated:YES];
}



- (KBNoDataMsgView *)noDataView {
    if (!_noDataView) {
        _noDataView = [[KBNoDataMsgView alloc] initWithFrame:self.collectionView.bounds title:@"优选圈暂时还没有任何商品"];
        _noDataView.hidden = YES;
    }
    return _noDataView;
}

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