//
//  ZBProductListViewController.m
//  ZBProject
//
//  Created by 学丽 on 2019/4/9.
//  Copyright © 2019 ZB. All rights reserved.
//

#import "ZBProductListViewController.h"
#import "ZBProductListCell.h"
@interface ZBProductListViewController ()<UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout>
{
    CGFloat _lastContentOffset;
    CGFloat _oldY;
}

@property(nonatomic,strong)UICollectionView *collectionV;
@property(nonatomic,strong)NSMutableArray *dataArray;
@property(nonatomic,assign)NSInteger Page;
@property(nonatomic,strong)NSMutableArray *listArray;
//侧滑筛选
@property(nonatomic,strong)ZBFilterView *filterView;

@property(nonatomic,copy)NSString *lowestPrice;//最低价
@property(nonatomic,copy)NSString *highPrice;//最低价
@property(nonatomic,copy)NSString *start_rate;//佣金比例下限
@property(nonatomic,assign)NSInteger counts;//判断是不是首次打开
@end

@implementation ZBProductListViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    [self initNav];
    self.counts = 1;
    
    [self getProductData];
    if ([self.model.type isEqualToString:@"cate"]) {
        [self requestWithId:self.model.Id];
    }else{
        self.collectionV.backgroundColor=[UIColor lineColor];
    }
    
}
-(void)requestWithId:(NSString *)Id
{
    if (![AccountTool isLogin]) {
        return;
    }
    [LoadingView showInView:self.view];
    [ZBHTTP post:[NSString stringWithFormat:@"%@api/goods/childList",BASEURL] params:@{@"pid":Id} success:^(id  _Nonnull json) {
        
        [self.listArray removeAllObjects];
        NSArray *array =[NSArray yy_modelArrayWithClass:[ClassModel class] json:json[@"list"]];
        [self.listArray addObjectsFromArray:array];
        [LoadingView dismiss];
        if (self.listArray.count ==0) {
            self.collectionV.backgroundColor=[UIColor lineColor];
        }else{
            self.collectionV.backgroundColor=[UIColor clearColor];
        }
        [self.collectionV reloadData];
        
    } failure:^(NSError * _Nonnull error) {
        [LoadingView dismiss];
    }];
    
}
-(void)getProductData
{
    if (![AccountTool isLogin]) {
        return;
    }
    [LoadingView showInView:self.view];
    //type为cate有
    NSDictionary *dics =@{@"page":@(self.Page),@"id":self.model.Id,@"type":self.model.type,@"start_price":self.lowestPrice,@"end_price":self.highPrice,@"start_tk_rate":self.start_rate};
    [ZBHTTP post:[NSString stringWithFormat:@"%@api/goods/listGoods",BASEURL] params:dics success:^(id  _Nonnull json) {
        [LoadingView dismiss];
        NSArray *array =[NSArray yy_modelArrayWithClass:[ZBGoodModel class] json:json[@"data"]];
        [self.collectionV.mj_footer endRefreshing];
        [self.collectionV.mj_header endRefreshing];
        if (self.Page == 1) {
            self.dataArray=[NSMutableArray array];
            [self.dataArray removeAllObjects];
            
        }
        self.counts++;
        if (array.count > 0) {
            [self.dataArray addObjectsFromArray:array];
        }
        if (array.count == 0) {
             [self.collectionV.mj_footer endRefreshingWithNoMoreData];
        }
        
        
        [self.collectionV reloadData];
    } failure:^(NSError * _Nonnull error) {
        [LoadingView dismiss];
    }];
}
-(void)initNav
{
    self.Page = 1;
    self.lowestPrice=@"";
    self.start_rate=@"";
    self.highPrice=@"";
    [self.view addSubview:self.collectionV];
    [self.collectionV mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.mas_equalTo(0);
        
        make.top.mas_equalTo(10);
        make.bottom.mas_equalTo(self.view.mas_bottom);
    }];
   
    [[UIApplication sharedApplication].keyWindow addSubview:self.filterView];
    self.filterView.frame=CGRectMake(SCREEN_WIDTH, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
}


#pragma mark---CollectionDelegate&&DataSource
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.section == 1) {
        if (self.dataArray.count == 0 && self.counts!=1) {
            NoDataCell *cell =[collectionView dequeueReusableCellWithReuseIdentifier:@"nodata" forIndexPath:indexPath];
            return cell;
        }
        ZBProductGoodListCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"list" forIndexPath:indexPath];
        
        cell.model=self.dataArray[indexPath.row];
        return cell;
    }else{
        ZBProductClassCell *classC=[collectionView dequeueReusableCellWithReuseIdentifier:@"class" forIndexPath:indexPath];
        classC.listArray=self.listArray;
        classC.clickListBlock = ^(ClassModel * _Nonnull model) {//列表跳转
            ZBSecondListVC *listV =[[ZBSecondListVC alloc]init];
            listV.Id = model.Id;
            if (model.type.length == 0) {
                listV.type = @"module";
            }else{
                listV.type = model.type;
            }
            listV.click_type=@"1";
            listV.navigationItem.title=model.name;
            [self.navigationController pushViewController:listV animated:YES];
        } ;
        return classC;
    }
    
    
}
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
    return 2;
    
}
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    if (section == 0) {
        return 1;
    }else{
        if (self.dataArray.count == 0 && self.counts!=1) {
            return 1;
        }
        return self.dataArray.count;
    }
    
}
-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
{
    if (section == 0) {
        return CGSizeMake(0, 0);
    }else{
       return CGSizeMake(SCREEN_WIDTH, 40);
    }
    
    
}
-(UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.section == 1 && kind==UICollectionElementKindSectionHeader ) {
        ZBProductHeadView  *head=[collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"head" forIndexPath:indexPath];
        head.backgroundColor=[UIColor lineColor];
        if (self.lowestPrice.length!=0 || self.highPrice.length !=0) {
            NSString *price=[NSString stringWithFormat:@"价格%ld-%ld元",self.lowestPrice.integerValue,self.highPrice.integerValue];
            if (self.highPrice.integerValue == 0) {
                price=[NSString stringWithFormat:@"价格%ld元以上",self.lowestPrice.integerValue];
            }
            [head.priceBtn setTitle:price forState:UIControlStateNormal];
            [head.priceBtn setTitleColor:[UIColor baseColor] forState:UIControlStateNormal];
            [head.priceBtn setImage:nil forState:UIControlStateNormal];
            [head.priceBtn setButtonImageTitleStyle:ButtonImageTitleStyleDefault padding:0];
        }else{
            [head.priceBtn setTitle:@"价格筛选" forState:UIControlStateNormal];
            [head.priceBtn setTitleColor:[UIColor YHColorWithHex:0x333333] forState:UIControlStateNormal];
            
            [head.priceBtn setImage:[UIImage imageNamed:@"shaixuan_icon"] forState:UIControlStateNormal];
            [head.priceBtn setButtonImageTitleStyle:ButtonImageTitleStyleRight padding:5];
        }
        
        if (self.start_rate.length!=0) {//佣金比例搜索
            [head.profitsBtn setTitle:[NSString stringWithFormat:@"佣金%@%%以上",self.start_rate] forState:UIControlStateNormal];
            [head.profitsBtn setTitleColor:[UIColor baseColor] forState:UIControlStateNormal];
            [head.profitsBtn setImage:nil forState:UIControlStateNormal];
             [head.profitsBtn setButtonImageTitleStyle:ButtonImageTitleStyleDefault padding:0];
        }else{
            [head.profitsBtn setTitle:@"利润筛选" forState:UIControlStateNormal];
            [head.profitsBtn setTitleColor:[UIColor YHColorWithHex:0x333333] forState:UIControlStateNormal];
            
            [head.profitsBtn setImage:[UIImage imageNamed:@"shaixuan_icon"] forState:UIControlStateNormal];
            [head.profitsBtn setButtonImageTitleStyle:ButtonImageTitleStyleRight padding:5];
        }
        
        
        
        head.choiceBlock = ^(UIButton * _Nonnull btn) {
            
            [UIView animateWithDuration:0.5 animations:^{
                self.filterView.frame=CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
                [UIApplication sharedApplication].statusBarStyle=UIStatusBarStyleDefault;
                
            }];
            if (btn.tag == 1111) {//价格筛选
                [self.filterView settitle:@"价格区间(元)" LeftPlachoder:@"最低价" rightISHidden:NO RightPlacholder:@"最高价" Array:@[@"10元以下",@"10-50元",@"50-100元",@"100元以上"]rate:self.start_rate lowPrice:self.lowestPrice highprice:self.highPrice];
            }else{
                [self.filterView settitle:@"利润区间" LeftPlachoder:@"最低利润" rightISHidden:YES RightPlacholder:@"" Array:@[@"20%以上",@"30%以上",@"40%以上",@"50%以上"]rate:self.start_rate lowPrice:self.lowestPrice highprice:self.highPrice];
            }
            
        };
        return head;
    }else{
        UICollectionReusableView  *head=[collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"view" forIndexPath:indexPath];
        return head;
    }
    
    
}
-(UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
{
    if (self.listArray.count >0) {
        return UIEdgeInsetsMake(10, 10, 0, 10);
    }else{
         return UIEdgeInsetsMake(0.1, 10, 0, 9.5);
    }
    
   
    
}
-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.section==1) {
        if (self.dataArray.count == 0 && self.counts !=1) {
            return CGSizeMake(SCREEN_WIDTH, 200);
        }
         return CGSizeMake((SCREEN_WIDTH-30)/2, 277);
    }else{
        if (self.listArray.count==0) {
            return CGSizeMake(0, 0.1);
        }else if (self.listArray.count>4 ) {
            return CGSizeMake(SCREEN_WIDTH-20, 180);
        }else{
           return CGSizeMake(SCREEN_WIDTH-20, 90);
        }
        
    }
    
   
}
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
    
    if (indexPath.section == 0 || self.dataArray.count == 0) {
        
        return;
    }
    ZBGoodDetailVC *detilV =[[ZBGoodDetailVC alloc]init];
    detilV.model=self.dataArray[indexPath.row];
    detilV.detailModel=self.dataArray[indexPath.section];
    [self.navigationController pushViewController:detilV animated:YES];
}



-(UICollectionView *)collectionV
{
    if (!_collectionV) {
        XLPlainFlowLayout *flowLayout =[[XLPlainFlowLayout alloc]init];
        flowLayout.naviHeight = 0;
        flowLayout.minimumLineSpacing = 10;
        flowLayout.minimumInteritemSpacing = 0;
        flowLayout.headerReferenceSize = CGSizeMake(0, 0);
        _collectionV =[[UICollectionView alloc]initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT) collectionViewLayout:flowLayout];
        _collectionV.delegate=self;
        _collectionV.dataSource=self;
        _collectionV.showsVerticalScrollIndicator=NO;
        _collectionV.showsHorizontalScrollIndicator=NO;
        _collectionV.backgroundColor=[UIColor clearColor];
        [_collectionV registerClass:[ZBProductGoodListCell class] forCellWithReuseIdentifier:@"list"];
        [_collectionV registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"view"];
        [_collectionV registerClass:[ZBProductHeadView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"head"];
        [_collectionV registerClass:[NoDataCell class] forCellWithReuseIdentifier:@"nodata"];
        [_collectionV registerClass:[ZBProductClassCell class] forCellWithReuseIdentifier:@"class"];
        self.collectionV.mj_header =[MJRefreshNormalHeader headerWithRefreshingBlock:^{
            self.Page = 1;
            [self getProductData];
        }];
        self.collectionV.mj_footer=[MJRefreshBackNormalFooter footerWithRefreshingBlock:^{
            self.Page ++;
            [self getProductData];
        }];
        
    }
    return _collectionV;
}
-(void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    if (scrollView.contentOffset.y < 0 || [self.collectionV.mj_footer isRefreshing]) {
        return;
    }
    //scrollView已经有拖拽手势，直接拿到scrollView的拖拽手势
    UIPanGestureRecognizer *pan = scrollView.panGestureRecognizer;
    //获取到拖拽的速度 >0 向下拖动 <0 向上拖动
    CGFloat velocity = [pan velocityInView:scrollView].y;
   
    
//    CGFloat offY = scrollView.contentOffset.y - _lastContentOffset;
//    NSNotification *noti = [[NSNotification alloc] initWithName:@"scrollDirectorNoti" object:nil userInfo:@{@"director":@(velocity),@"offY":@(offY)}];
//    [[NSNotificationCenter defaultCenter] postNotification:noti];
    _lastContentOffset = scrollView.contentOffset.y;
    
    if(self.listArray.count>0 )
    {
        if ([scrollView isEqual: self.collectionV]) {
            if (self.collectionV.contentOffset.y > _oldY) {
                // 上滑
                [UIView animateWithDuration:0.1 animations:^{
                    self.collectionV.backgroundColor=[UIColor lineColor];
                }];
            }
            else if(self.collectionV.contentOffset.y<=50 ){
                // 下滑
                [UIView animateWithDuration:0.1 animations:^{
                    self.collectionV.backgroundColor=[UIColor clearColor];
                }];
            }
        }
    }
    
}
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
    // 获取开始拖拽时tableview偏移量
    _oldY = self.collectionV.contentOffset.y;
}
-(NSMutableArray *)dataArray
{
    if (!_dataArray) {
        _dataArray =[NSMutableArray array];
    }
    return _dataArray;
}
-(NSMutableArray *)listArray
{
    if (!_listArray) {
        _listArray=[NSMutableArray array];
    }
    return _listArray;
}
-(ZBFilterView *)filterView
{
    if (!_filterView) {
        _filterView=[[ZBFilterView alloc]init];
        __weak typeof(self) weakself = self;
        _filterView.changeruleBlock = ^(NSString * _Nonnull rate, NSString * _Nonnull lowStr, NSString * _Nonnull highStr, BOOL isshow) {
            //isshow为true时是佣金显示
            //需要判断价格筛选还是佣金筛选
            if (isshow) {
                weakself.start_rate=rate;
            }else{
                weakself.lowestPrice = lowStr;
                weakself.highPrice=highStr;
            }
            
            weakself.Page = 1;
            [weakself getProductData];
            [weakself.collectionV reloadData];
        };
    }
    return _filterView;
}
@end