KouDaiProject/YouHuiProject/YouHui/ShopCar/KBNativeShop...

//
//  KBNativeShopCarViewController.m
//  YouHuiProject
//
//  Created by 小花 on 2018/11/2.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "KBNativeShopCarViewController.h"
#import "JsonTool.h"
#import "KBNativeShopCarHeader.h"
#import "KBNativeShopCarCollectionCell.h"
#import "KBChildGoodModel.h"
#import "KBGoodDetailViewController.h"
#import "KBNoDataMsgView.h"


static NSString *shopCarHorizontalGoodCell = @"shopCarHorizontalGoodCell";
static NSString *shopCarHorizontalHeader   = @"shopCarHorizontalHeader";

@interface KBNativeShopCarViewController ()
<
UICollectionViewDelegate,
UICollectionViewDataSource,
UICollectionViewDelegateFlowLayout
>
{
    NSInteger _page;
    ActivityIndicatorView *_indicatorView;
    KBNativeShopCarHeader *_header;
}

@property (nonatomic, strong) UICollectionView          *collectionView;
@property (nonatomic, strong) NSMutableArray            *dataArray;
@property (nonatomic, strong) NSArray                   *goodsIdArr;
@property (nonatomic, strong) KBNoDataMsgView           *noDataView;
@end

@implementation KBNativeShopCarViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    _page = 1;
    [self addWebShopCarCompleteNoti];
    [self initSubViews];
}

- (void)initSubViews {
    KBNativeShopCarHeader *header = [[KBNativeShopCarHeader alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, 50)];
    _header = header;
    [self.view addSubview:header];
    
    UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc]init];
    self.collectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, header.bottom, SCREEN_WIDTH, SCREEN_HEIGHT-NavBarHeight-TabbarHeight-header.height) 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:[KBNativeShopCarCollectionCell class] forCellWithReuseIdentifier:shopCarHorizontalGoodCell];
    [self.collectionView registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:shopCarHorizontalHeader];
    [self.view addSubview:self.collectionView];
    
    MJRefreshNormalHeader *refreshHeader = [MJRefreshNormalHeader headerWithRefreshingBlock:^{
        _page = 1;
        [self.collectionView.mj_footer resetNoMoreData];
        [self requestGoods:YES];
    }];
    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 requestGoods:NO];
    }];
    
    ActivityIndicatorView *indicatorView = [ActivityIndicatorView showInView:self.view frame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT-NavBarHeight-TabbarHeight)];
    _indicatorView = indicatorView;
    
    [self.collectionView addSubview:self.noDataView];
}


/**
 监听web购物车是否加载完成
 */
- (void)addWebShopCarCompleteNoti {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(loadShopCarGoods:) name:ShopCarCompleteKey object:nil];
}

- (void)loadShopCarGoods:(NSNotification *)noti {
    NSDictionary *dic = noti.userInfo;
    NSArray *goodArr = dic[@"goodsIdStr"];
    self.goodsIdArr = goodArr;
    [self requestGoods:YES];
}


/**
 加载购物车数据
 */
- (void)requestGoods:(BOOL)refresh {
    NSString *url = [NSString stringWithFormat:@"%@/api/v2/goods/cartGoods",BaseURL];
    NSString *goodsStr = [JsonTool arrayToJSONString:self.goodsIdArr];
    NSDictionary *para = @{@"goodsIdStr":goodsStr,
                           @"page":@(_page)
                           };
    [KBHttp post:url params:para success:^(id json) {
        if (refresh) {
            [self.dataArray removeAllObjects];
        }
        NSArray *list = json[@"data"];
        for (NSDictionary *dict in list) {
            NSArray *arr = [NSArray yy_modelArrayWithClass:[KBChildGoodModel class] json:dict[@"goodsList"]];
            [self.dataArray addObject:arr];
        }
        [_header setDataWithDic:json];
    
        if (list.count > 0) {
            [self.collectionView.mj_footer endRefreshing];
        }else {
            [self.collectionView.mj_footer endRefreshingWithNoMoreData];
        }
        if (_page == 1 && list.count == 0  ) {
            self.noDataView.hidden = NO;
        }else {
            self.noDataView.hidden = YES;
        }
        
        [self.collectionView.mj_header endRefreshing];
        [self.collectionView reloadData];
        [_indicatorView stopAnimating];
    } failure:^(NSError *error) {
        
    }];
}


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

- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
    return self.dataArray.count;
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    
    return CGSizeMake(SCREEN_WIDTH-20, 88);
}



- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
{
    if (section == 0) {
        return CGSizeMake(SCREEN_WIDTH-20, 45);
    }
    return CGSizeMake(SCREEN_WIDTH-20, 35);
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section
{
    return CGSizeMake(SCREEN_WIDTH, 10);
}


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

- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath{
    UICollectionReusableView *header = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:shopCarHorizontalHeader forIndexPath:indexPath];
    [header removeAllSubviews];
    UIView *bg = [[UIView alloc] initWithFrame:CGRectMake(10, 0, SCREEN_WIDTH-20, 35)];
    bg.backgroundColor = [UIColor whiteColor];
    UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 0, 16, 16)];
    [bg addSubview:imgView];
    imgView.centerY = bg.height/2;
    KBChildGoodModel *model = self.dataArray[indexPath.section][indexPath.row];
    NSString *imgName = [model.shop_type boolValue]?@"cl-tm":@"taobao";
    imgView.image = [UIImage imageNamed:imgName];
    UILabel *nick = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 200, 20)];
    nick.font = [UIFont systemFontOfSize:13];
    nick.text = model.nick;
    nick.centerY = bg.height/2;
    [bg addSubview:nick];
    nick.left = imgView.right+5;
    [header addSubview:bg];
    bg.bottom = header.height;
    return header;
}

#pragma mark -内边距
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
    return UIEdgeInsetsMake(0, 5, 0, 5);
}

#pragma mark -行间距
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
    
    return 0;
}


- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    KBChildGoodModel *model = self.dataArray[indexPath.section][indexPath.row];
    KBEventModel *evevtModel = [[KBEventModel alloc] initWithOrigin:model.origin category_id:@"0" source:ShoppingAction];
    KBGoodDetailViewController *detail = [[KBGoodDetailViewController alloc] init];
    detail.eventModel = evevtModel;
    DetailRequestModel *requesModel = [[DetailRequestModel alloc] initWithChildModel:model];
    detail.requestModel = requesModel;
    [self.navigationController pushViewController:detail animated:YES];
}



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

- (KBNoDataMsgView *)noDataView {
    if (!_noDataView) {
        _noDataView = [[KBNoDataMsgView alloc] initWithFrame:self.collectionView.bounds title:@"没有发现购物车里的商品"];
        _noDataView.hidden = YES;
    }
    return _noDataView;
}

@end