//
//  RDSCtrlModeView.m
//  Temperature
//
//  Created by RD on 2023/1/6.
//

#import "RDSCtrlModeView.h"
#import "RDSCtrlModeCell.h"

static NSString * const RDSCtrlModeCellID = @"RDSCtrlModeCellID";
const NSInteger ModeCellNumber = 4;

@interface RDSCtrlModeView ()<UICollectionViewDelegate, UICollectionViewDataSource>
@property (nonatomic, weak) UICollectionView *collectionView;
@property (nonatomic, strong) NSMutableArray <ModelImg *> *sources;
@property (nonatomic, assign) int lastMode;
@end
@implementation RDSCtrlModeView

- (instancetype)init
{
    self = [super init];
    if (self) {
        self.backgroundColor = UIColor.clearColor;
        [self p_setupSources];
        [self p_setupCollectionView];
    }
    return self;
}

- (void)p_setupSources{
    
    _sources = [NSMutableArray array];
    
    // 工作模式(0：制冷,1：制热,2：除湿3：送风4：加湿)
    ModelImg *m1 = [[ModelImg alloc] init];
    m1.img = @"icon_refrigeration";
    m1.imgSel = @"icon_refrigeration_sel";
    
    ModelImg *m2 = [[ModelImg alloc] init];
    m2.img = @"icon_heating";
    m2.imgSel = @"icon_heating_sel";
    
    ModelImg *m3 = [[ModelImg alloc] init];
    m3.img = @"icon_dehumidification";
    m3.imgSel = @"icon_dehumidification_sel";
    
    ModelImg *m4 = [[ModelImg alloc] init];
    m4.img = @"icon_wind";
    m4.imgSel = @"icon_wind_sel";
    
    ModelImg *m5 = [[ModelImg alloc] init];
    m5.img = @"icon_humidify";
    m5.imgSel = @"icon_humidify_sel";

//    ModelImg *m6 = [[ModelImg alloc] init];
//    m6.img = @"icon_humidify";
//    m6.imgSel = @"icon_humidify_sel";
    
    
    [_sources addObject:m1];
    [_sources addObject:m2];
    [_sources addObject:m3];
    [_sources addObject:m4];
    [_sources addObject:m5];
//    [_sources addObject:m6];
}

- (void)setMode:(int)mode{
    
    if(mode != _lastMode){
        _lastMode = mode;
        dispatch_async(dispatch_get_main_queue(), ^{
            
            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:mode inSection:0];
            
            [self.collectionView reloadData];
            [self.collectionView scrollToItemAtIndexPath:indexPath atScrollPosition:UICollectionViewScrollPositionCenteredHorizontally animated:true];
        });
    }
    
}

- (void)p_setupCollectionView {
    
    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
    CGFloat viewW = (SCREEN_WIDTH-20*(ModeCellNumber-1+2))/ModeCellNumber;
    layout.itemSize = CGSizeMake(viewW, viewW);
    layout.minimumLineSpacing = 20;
    layout.sectionInset = UIEdgeInsetsMake(0, 0, 0, 0);
    layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
    
//    UICollectionView *collectionView = [[UICollectionView alloc] initWithFrame:self.bounds collectionViewLayout:layout];
    UICollectionView *collectionView = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
    collectionView.showsHorizontalScrollIndicator = NO;
    collectionView.backgroundColor = self.backgroundColor;
    [collectionView registerNib:[UINib nibWithNibName:@"RDSCtrlModeCell" bundle:nil] forCellWithReuseIdentifier:RDSCtrlModeCellID];
    collectionView.delegate = self;
    collectionView.dataSource = self;
    collectionView.pagingEnabled = YES;
    [self addSubview:collectionView];
    self.collectionView = collectionView;
    [collectionView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self);
        make.bottom.equalTo(self);
        make.left.equalTo(self).offset(20);
        make.right.equalTo(self).offset(-20);
    }];
    
}

#pragma mark - UICollectionViewDelegate
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    
    
    
    int curSelect = (int)indexPath.row;
    
    if(curSelect == _lastMode){// 和上次点击模式相同
        return;
    }else{// 点击其它模式
        _lastMode = curSelect;
    }
    
    [collectionView reloadData];
    [collectionView scrollToItemAtIndexPath:indexPath atScrollPosition:UICollectionViewScrollPositionCenteredHorizontally animated:true];
    
    BLOCK_SAFE_RUN(_onModeClick,_lastMode)
}


#pragma mark - UICollectionViewDataSource
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    return _sources.count;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    RDSCtrlModeCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:RDSCtrlModeCellID forIndexPath:indexPath];
    cell.tag = indexPath.row;
    cell.modelImg = _sources[indexPath.row];
    cell.layer.masksToBounds = YES;
    cell.layer.cornerRadius = 10;
    cell.mode = _lastMode;

    return cell;
}
@end