ShengQianProject/YouHuiProject/YouHui/Find/ViewController/DRFindSearch...

//
//  DRFindSearchResultViewController.m
//  YouHuiProject
//
//  Created by xiaoxi on 2018/2/1.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "DRFindSearchResultViewController.h"
#import "DRGoodCollectionCell.h"
#import "DRChildGoodModel.h"
#import "DRGoodListViewController.h"
#import "DRGoodDetailViewController.h"
#import "DRFindRequestViewModel.h"
#import "DRCollectionView.h"
#import "DRGoodHorzitolCollectionCell.h"
#import "DRSearchNoDataView.h"
#import "DRSearchTitleView.h"
#import "SelectView.h"

static NSString *const cellID = @"DRGoodCollectionCell";
static NSString *const HorzitolCellId = @"DRGoodHorzitolCollectionCell";
static NSString *const collectionViewHeaderTop = @"top";
static NSString *const collectionViewHeaderMiddle = @"middle";
static BOOL isNoData = NO;
static CGFloat selectedViewHeight = 80.f;


typedef enum : NSUInteger {
    ResultCellTypeVertical,
    ResultCellTypeHorzitol,
} ResultCellType;

@interface DRFindSearchResultViewController ()
<
    UICollectionViewDelegate,
    UICollectionViewDataSource,
    UICollectionViewDelegateFlowLayout,
    UIGestureRecognizerDelegate,
    YHSearchNoDataViewDelegate,
    NY_SelectViewDelegate
>
{
    NSString *_type;        //1->默认 2->销量由高到低 3->价格由高到低 4->价格由低到高 5-综合筛选
    NSString *_maxPrice;    //最高价格
    NSString *_minPrice;    //最低价格
    NSInteger page;
    NSInteger guessYouLikePage;
    NSInteger _is_has_coupon;
}

@property (nonatomic, strong) UICollectionView   *collectionView;
@property (nonatomic, strong) NSMutableArray     *goodsArr;
@property (nonatomic, strong) SelectView         *selectedView;
@property (nonatomic, assign) ResultCellType     cellType;
@property (nonatomic, strong) NSArray            *filtrateArray;
@end

@implementation DRFindSearchResultViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self requesFiltrateParam];
    [self configDefauleParamKey];
    [self initNavBar];
    [self initSubviews];
    [self requestVoucherFindIsRefresh:NO switchButton:nil];

}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault];
    self.navigationController.navigationBar.hidden = NO;
}


- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    self.navigationController.navigationBar.hidden = self.hiddenNavigationWhenPop;
}

- (void)willMoveToParentViewController:(UIViewController *)parent {
    [super willMoveToParentViewController:parent];
    //处理侧滑手势
    if (!parent) {
        [self.navigationController setNavigationBarHidden:NO animated:NO];
        self.collectionView.height = kScreenHeight-NavBarHeight-selectedViewHeight;
        self.selectedView.y = 0;
        self.collectionView.y = selectedViewHeight;
    }
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}



- (void)configDefauleParamKey {
    page = 1;
    guessYouLikePage = 1;
    _type = @"1";
    _minPrice = @"0";
    _maxPrice = @"-1";
    
    
}

- (void)initNavBar {
    
    
    self.view.backgroundColor = [UIColor YHColorWithHex:0xf5f4f4];
    if ([self respondsToSelector:@selector(setAutomaticallyAdjustsScrollViewInsets:)]) {
        self.automaticallyAdjustsScrollViewInsets = YES;
    }
    UIView *statusBarBgView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, KStatusBarHeight)];
    statusBarBgView.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:statusBarBgView];
    
    UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 32, 32)];
    [button setImage:[UIImage imageNamed:@"back"] forState:UIControlStateNormal];
    [button setImageEdgeInsets:UIEdgeInsetsMake(0, -10, 0, 0)];
    [button addTarget:self action:@selector(backAction) forControlEvents:UIControlEventTouchUpInside];
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:button];
    
    UIButton *rightBtn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 32, 32)];
    [rightBtn setImage:[UIImage imageNamed:@"Vertical_items"] forState:UIControlStateNormal];
    [rightBtn setImage:[UIImage imageNamed:@"Horizontal_items"] forState:UIControlStateSelected];
    [rightBtn addTarget:self action:@selector(switchItemsType:) forControlEvents:UIControlEventTouchUpInside];
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:rightBtn];
    NSNumber *cellType = [[NSUserDefaults standardUserDefaults] objectForKey:@"ResultCellType"];
    if (cellType) {
        self.cellType = cellType.integerValue;
    }else {
        self.cellType = ResultCellTypeVertical;
    }
    rightBtn.selected = self.cellType==ResultCellTypeHorzitol?YES:NO;
    
    self.navigationController.interactivePopGestureRecognizer.delegate = (id<UIGestureRecognizerDelegate>)self;
    
    DRSearchTitleView *titleView = [[DRSearchTitleView alloc] initWithFrame:CGRectMake(0, 0, FITSIZE(270), 32) searchName:self.searchName click:^{
        [self backAction];
    }];
    titleView.closeBlock = ^{
        [self backAction];
        self.searchBar.text = nil;
    };
    
    self.navigationController.navigationBar.translucent = NO;
    self.navigationItem.titleView = titleView;
}

- (void)backAction {
    [self.navigationController popViewControllerAnimated:NO];
}


- (void)switchItemsType:(UIButton *)sender {
    sender.selected = !sender.selected;
    self.cellType = sender.selected ? ResultCellTypeHorzitol:ResultCellTypeVertical;
    [[NSUserDefaults standardUserDefaults] setObject:@(self.cellType) forKey:@"ResultCellType"];
    [[NSUserDefaults standardUserDefaults] synchronize];
    [self.collectionView reloadData];
}

- (void)initSubviews {
    [self.view addSubview:self.collectionView];
//    [self.view addSubview:self.selectedView];
    [SVProgressHUD show];
}

#pragma mark - request


/**
 加载筛选范围
 */
- (void)requesFiltrateParam {
    NSString *urlString = [NSString stringWithFormat:@"%@/api/categoryNew/priceSection", BaseURL];
    [DRHttp post:urlString params:nil success:^(id json) {
        self.filtrateArray = json[@"data"];
        [self.view addSubview:self.selectedView];
        
    } failure:^(NSError *error) {
        
    }];
}

- (void)requestVoucherFindIsRefresh:(BOOL)refresh switchButton:(UIButton *)switchButton{
    
    NSDictionary *param = @{@"page":@(page),
                            @"keyword":self.searchName,
                            @"sort":_type,
                            @"min_price":_minPrice,
                            @"max_price":_maxPrice,
                            @"is_has_coupon":@(_is_has_coupon)
                            };

    NSString *urlString = [NSString stringWithFormat:@"%@/api/v2/goods/search", BaseURL];
    [DRHttp post:urlString params:param success:^(id json) {
        NSArray *arr = [NSArray yy_modelArrayWithClass:[DRChildGoodModel class] json:json[@"data"]];
        if (refresh) {
            [self.goodsArr removeAllObjects];
            [self.collectionView reloadData];
        }
        if (arr.count > 0) {
            [self.collectionView.mj_footer endRefreshing];
            [self.goodsArr addObjectsFromArray:arr];
            [self.collectionView reloadData];
            if (page == 1) {
                isNoData = NO;
                self.collectionView.mj_footer = [MJRefreshAutoNormalFooter footerWithRefreshingBlock:^{
                    page ++;
                    [self requestVoucherFindIsRefresh:NO switchButton:nil];
                }];
                self.collectionView.footRefreshState = MJFooterRefreshStateNormal;
            }
        }
        else {
            [self.collectionView.mj_footer endRefreshingWithNoMoreData];
            if (page == 1) {
                isNoData = YES;
                [self requestGuessYouLike];
            }
        }
        [SVProgressHUD dismiss];
        switchButton.selected = !switchButton.selected;
    } failure:^(NSError *error) {
        [self.collectionView.mj_footer endRefreshing];
        [SVProgressHUD dismiss];
        [MBProgressHUD showMessage:@"该商品未参加优惠券和返佣推广活动，建议亲换个店铺试试"];
    }];
    
}

- (void)requestGuessYouLike {
    [DRFindRequestViewModel requestGuessYouLikeParamPage:guessYouLikePage success:^(NSArray *array) {
        if (array.count > 0) {
            [self.goodsArr addObjectsFromArray:array];
            [self.collectionView reloadData];
            if (guessYouLikePage == 1) {
                kWeak(self);
                _collectionView.mj_footer = [MJRefreshAutoNormalFooter footerWithRefreshingBlock:^{
                    guessYouLikePage ++;
                    [selfWeak requestGuessYouLike];
                }];
            }
        }
        [self.collectionView.mj_footer endRefreshing];
    } failure:^(NSError *error) {
        [self.collectionView.mj_footer endRefreshing];
        [SVProgressHUD dismiss];
        [MBProgressHUD showMessage:@"加载失败"];
    }];
}

#pragma mark - SearchNoDataViewDelegate

- (void)yh_SearchNoDataViewDidRefresh {
    [self.goodsArr removeAllObjects];
    [self requestVoucherFindIsRefresh:YES switchButton:nil];
}

#pragma mark - collectionView

- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
    return 2;
}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    if (section == 1) {
        return self.goodsArr.count;
    }
    return 0;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    
    DRChildGoodModel *model = self.goodsArr[indexPath.item];
    if (self.cellType == ResultCellTypeVertical) {
        DRGoodCollectionCell *cell = [self.collectionView dequeueReusableCellWithReuseIdentifier:cellID forIndexPath:indexPath];
        cell.model = model;
        return cell;
    }else {
        DRGoodHorzitolCollectionCell *cell = [self.collectionView dequeueReusableCellWithReuseIdentifier:HorzitolCellId forIndexPath:indexPath];
        cell.model = model;
        return cell;
    }
    
}

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    DRChildGoodModel *model = self.goodsArr[indexPath.item];
    //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:searchAction];
    detailVC.eventModel = evevtModel;
    
    [self.navigationController pushViewController:detailVC animated:YES];
}

- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath {
    UICollectionReusableView *view = nil;
    if (indexPath.section == 0) {
        DRSearchNoDataView *noData = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:collectionViewHeaderTop forIndexPath:indexPath];
        noData.delegate = self;
        noData.hidden = !isNoData;
        view = noData;
        return view;
    }
    else {
        UICollectionReusableView *guessYouLikeView = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:collectionViewHeaderMiddle forIndexPath:indexPath];
        
        UIImageView *middleImageView = [[UIImageView alloc] initWithFrame:CGRectMake(kScreenWidth/2-FITSIZE(99)/2, FITSIZE(14), FITSIZE(99), FITSIZE(12))];
        middleImageView.backgroundColor = [UIColor clearColor];
        middleImageView.image = [UIImage imageNamed:@"guess_like_gray"];
        [guessYouLikeView addSubview:middleImageView];
        guessYouLikeView.hidden = !isNoData;
        view = guessYouLikeView;
    }
    return view;
}


- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    DRChildGoodModel *model = self.goodsArr[indexPath.row];
    if (self.cellType == ResultCellTypeVertical) {
        CGFloat width = (SCREEN_WIDTH-5)/2;
        CGFloat height = width + 102;
        CGSize itemSize = CGSizeMake(width, height);
        return itemSize;
    }else {
        return CGSizeMake(SCREEN_WIDTH, 140);
    }
}

- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
    if (self.cellType == ResultCellTypeVertical) {
        return 5;
    }else {
        return 1;
    }
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section {
    if (isNoData) {
        if (section == 0) {
            return CGSizeMake(kScreenWidth, FITSIZE(264));
        }
        else {
            return CGSizeMake(kScreenWidth, FITSIZE(40));
        }
    }
    else {
        if (section == 0) {
            return CGSizeMake(kScreenWidth, 0.1);
        }
        else {
            return CGSizeMake(kScreenWidth, 0.1);
        }
    }
}

#pragma mark NY_SelectViewDelegate

//筛选确定点击
- (void)filtrateViewMakeSureFromValue:(NSString *)fromValue toValue:(NSString *)toValue {
    [self.collectionView scrollToTop];
    _minPrice = fromValue;
    _maxPrice = toValue;
    page = 1;
    [self requestVoucherFindIsRefresh:YES switchButton:nil];
}

//仅显示优惠券
- (void)selectItme:(SelectView *)selectView onlyTicketClick:(UIButton *)switchBtn {
    _is_has_coupon = switchBtn.selected ? 0 : 1;
    [self requestVoucherFindIsRefresh:YES switchButton:switchBtn];
}

//上方条件选择
-(void)selectTopButton:(SelectView *)selectView withIndex:(NSInteger)index withButtonType:(ButtonClickType)type1{
    [self.collectionView scrollToTop];
    //价格
    if (index == 2&&type1) {
        switch (type1) {
            case ButtonClickTypeNormal:
                //正常价格
            {
                NSLog(@"上边按钮的正常价格");
            }
                break;
            case ButtonClickTypeUp:
                //价格升序排列
            {
                NSLog(@"上边按钮的价格升序排列");
                _type = @"3";
            }
                break;
            case ButtonClickTypeDown:
                //价格降序排列
            {
                NSLog(@"上边按钮的价格降序排列");
                _type = @"4";
            }
                break;
            default:
                break;
        }
    }else if (index == 0){//综合
        
        NSLog(@"上边按钮的综合");
        _type = @"1";
        
    }else if (index == 1){//销量
        
        NSLog(@"上边按钮的销量");
        _type = @"2";
        
    }else{//筛选
        
        NSLog(@"上边按钮的筛选");
    }
    
    [self requestVoucherFindIsRefresh:YES switchButton:nil];
}


#pragma mark - scrollView
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    //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;
    if (velocity <- 10) {
        //向上拖动，隐藏导航栏
        
        [self.navigationController setNavigationBarHidden:YES animated:YES];
        self.collectionView.height = kScreenHeight-NavBarHeight-selectedViewHeight+NavBarHeight;
        self.selectedView.y = KStatusBarHeight;
        self.collectionView.y = self.selectedView.height+KStatusBarHeight;
        
    }else if (velocity > 10) {
        //向下拖动，显示导航栏
        
        [self.navigationController setNavigationBarHidden:NO animated:YES];
        self.collectionView.height = kScreenHeight-NavBarHeight-selectedViewHeight;
        self.selectedView.y = 0;
        self.collectionView.y = selectedViewHeight;
        
    }else if(velocity == 0){
        //停止拖拽
    }
}



#pragma mark - lazy

- (UICollectionView *)collectionView {
    if (!_collectionView) {
        UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
        flowLayout.scrollDirection = UICollectionViewScrollDirectionVertical;
        
        flowLayout.minimumLineSpacing = 5;
        flowLayout.minimumInteritemSpacing = 5;
        
        _collectionView = [[DRCollectionView alloc] initWithFrame:CGRectMake(0, selectedViewHeight, kScreenWidth, kScreenHeight-NavBarHeight-selectedViewHeight) collectionViewLayout:flowLayout];
        _collectionView.delegate = self;
        _collectionView.dataSource = self;
        
        [_collectionView registerClass:[DRGoodCollectionCell class] forCellWithReuseIdentifier:cellID];
        [_collectionView registerClass:[DRGoodHorzitolCollectionCell class] forCellWithReuseIdentifier:HorzitolCellId];
        
        [_collectionView registerClass:[DRSearchNoDataView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:collectionViewHeaderTop];
        [_collectionView registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:collectionViewHeaderMiddle];
        if (@available(iOS 11.0, *)) {
            _collectionView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
        }
    }
    return _collectionView;
}

- (SelectView *)selectedView {
    if (!_selectedView) {
        _selectedView = [[SelectView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, selectedViewHeight) withArr:self.filtrateArray];
        UIView *bgView = [[UIView alloc] initWithFrame:CGRectMake(0, -KStatusBarHeight, SCREEN_WIDTH, KStatusBarHeight)];
        bgView.backgroundColor = [UIColor whiteColor];
        [_selectedView addSubview:bgView];
        _selectedView.delegate = self;
    }
    return _selectedView;
}

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

@end