NewShengQian/YouHuiProject/YouHui/Home/ViewController/Today/Controller/DRNewsListVi...

//
//  DRNewsListViewController.m
//  YouHuiProject
//
//  Created by 小花 on 2018/12/12.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "DRNewsListViewController.h"
#import "DRGoodCollectionCell.h"
#import "DRGoodDetailViewController.h"

static NSString *cellID = @"DRGoodCollectionCell";
@interface DRNewsListViewController ()<UICollectionViewDelegate,UICollectionViewDataSource>
{
    NSInteger _page;
    NSInteger _type;
    BOOL _changeType;
    ActivityIndicatorView *_indicatorView;
}
@property (nonatomic, strong) UICollectionView *collectionView;
@property (nonatomic, strong) NSMutableArray *goodsArr;

@end

@implementation DRNewsListViewController



- (void)viewDidLoad {
    [super viewDidLoad];
    
    
    [self configParam];
    [self configNavigationBar];
    [self configCollectionView];
    [self initHUD];
    [self loadCategoryGoodsList];
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault];
    self.navigationController.navigationBar.hidden = YES;
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    [_indicatorView stopAnimating];
}

#pragma mark - HUD

- (void)initHUD {
    ActivityIndicatorView *indicatorView = [ActivityIndicatorView showInView:self.view frame:CGRectMake(0, NavBarHeight, SCREEN_WIDTH, SCREEN_HEIGHT-NavBarHeight)];
    _indicatorView = indicatorView;
    [_indicatorView startAnimating];
    
}

- (void)configParam {
    _page = 1;
    _type = 1; //默认请求推荐的数据
}

- (void)configNavigationBar {
    self.view.backgroundColor = [UIColor whiteColor];
    [self.navigationBar setNavTitle:@"猎豆头条"];
    
    self.navigationBar.showNavigationBarBottomLine = YES;
    UIButton *leftBtn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 40, 40)];
    [leftBtn setImage:[UIImage imageNamed:@"back"] forState:UIControlStateNormal];
    [leftBtn addTarget:self action:@selector(backAction) forControlEvents:UIControlEventTouchUpInside];
    [self.navigationBar setCustomLeftButtons:@[leftBtn]];
    [self.navigationBar setShowNavigationBarBottomLine:YES];
}

- (void)configCollectionView {
    
    
    UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc]init];
    flowLayout.minimumLineSpacing = 5;
    flowLayout.minimumInteritemSpacing = 0;
    flowLayout.headerReferenceSize = CGSizeMake(0, 0);
    self.collectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, NavBarHeight, SCREEN_WIDTH, SCREEN_HEIGHT-NavBarHeight) collectionViewLayout:flowLayout];
    [self.collectionView registerClass:[DRGoodCollectionCell class] forCellWithReuseIdentifier:cellID];
    self.collectionView.backgroundColor = [UIColor YHColorWithHex:0xf6f6f6];
    self.collectionView.showsVerticalScrollIndicator = NO;
    self.collectionView.delegate = self;
    self.collectionView.dataSource = self;
    self.collectionView.mj_footer = [MJRefreshAutoNormalFooter footerWithRefreshingBlock:^{
        [self loadMoreData];
    }];
    [self.view addSubview: self.collectionView];
    
}

- (void)backAction {
    [self.navigationController popViewControllerAnimated:YES];
}


/**
 上拉加载
 */
- (void)loadMoreData {
    _page++;
    _changeType = NO;
    [self loadCategoryGoodsList];
}


/**
 加载下部商品列表
 */
- (void)loadCategoryGoodsList {
    
    NSDictionary *para = @{@"page":@(_page)};
    NSString *url = [NSString stringWithFormat:@"%@/api/v2/message_push/LieDouHeadlinesList",BaseURL];
    [DRHttp post:url params:para success:^(id json) {
        if (_changeType) {
            [self.goodsArr removeAllObjects];
        }
        NSArray *list = [NSArray yy_modelArrayWithClass:[DRChildGoodModel class] json:json[@"data"]];
        if (list.count > 0) {
            [self.collectionView.mj_footer endRefreshing];
        }else {
            [self.collectionView.mj_footer endRefreshingWithNoMoreData];
        }
        [self.goodsArr addObjectsFromArray:list];
        [self.collectionView reloadData];
        
        [_indicatorView stopAnimating];
    } failure:^(NSError *error) {
        [self.collectionView.mj_footer endRefreshing];
        [_indicatorView stopAnimating];
        [MBProgressHUD showMessage:@"加载失败"];
    }];
}


#pragma mark =============== YHTypeButtonActionDelegate =============

- (void)didClickTypeButtonAction:(UIButton *)button withIndex:(NSInteger)index {
    _type = index + 1;
    _changeType = YES;
    [self loadCategoryGoodsList];
    [self.collectionView setContentOffset:CGPointMake(0, 0) animated:YES];
}


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

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    
    DRChildGoodModel *model = self.goodsArr[indexPath.row];
    CGFloat width = (SCREEN_WIDTH-5)/2;
    CGFloat height = width + 112;
    if (model.commission_price.length > 0) {
        
    }
    return CGSizeMake(width, height);
}


- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
{
    return CGSizeMake(0, 0);
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section
{
    return CGSizeMake(0, 0);
}


- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    DRGoodCollectionCell *cell = [self.collectionView dequeueReusableCellWithReuseIdentifier:cellID forIndexPath:indexPath];
    DRChildGoodModel *model = self.goodsArr[indexPath.row];
    cell.model = model;
    return cell;
}




- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    
    DRChildGoodModel *model = self.goodsArr[indexPath.row];
    //详情
    DRGoodDetailViewController *detailVC = [[DRGoodDetailViewController alloc] init];
    DetailRequestModel *requestModel = [[DetailRequestModel alloc] initWithChildModel:model];
    detailVC.requestModel = requestModel;
    
//    DREventModel *evevtModel = [[DREventModel alloc] initWithOrigin:model.origin category_id:@"0" source:ListAction];
//    detailVC.eventModel = evevtModel;
    
    [self.navigationController pushViewController:detailVC animated:YES];
}




#pragma mark -------------
- (NSMutableArray *)goodsArr {
    if (!_goodsArr) {
        _goodsArr = [NSMutableArray array];
    }
    return _goodsArr;
}


@end