TuanCanAPP_iOS1.0/ADHTuanCan/Class/餐品详情/view/非固定套餐View/MealCollectionView.swift

//
//  MealCollectionView.swift
//  ADHTuanCan
//
//  Created by 敖德亨 on 2023/10/26.
//

import UIKit

class MealCollectionView: UIView {

    @IBOutlet weak var moreBtn: UIButton!
   
    @IBOutlet weak var morenBtnView: UIImageView!
    @IBOutlet weak var collectView: UICollectionView!
    //top 43
    //bottom 50
    
    var dataModel : SetMealDetailModel?
    
    /// 展示更多
    var showMore = false
    
    var showMoreActionBlock : ((Bool)->Void)?
    
    var needKnowBlock : (()->Void)?
    
    var changeFoodBlock : (()->Void)?
    
    override func awakeFromNib() {
        super.awakeFromNib()
        
        self.createCollectView()
    }

    @IBAction func showMoreAction(_ sender: UIButton) {
        if self.dataModel?.mealFoodMsgs?.count ?? 0 < 9{
            return
        }
        self.showMore = !self.showMore
        self.collectView.reloadData()
        
        if self.showMore{
            self.moreBtn.setTitle(LanguagesUtil.createTextBy(Ctext: "收起", Etext: "pack up"), for: .normal)
            self.morenBtnView.image = UIImage.init(named: "上箭头")
        }else{
            self.moreBtn.setTitle(LanguagesUtil.createTextBy(Ctext: "剩余商品", Etext: "more"), for: .normal)
            self.morenBtnView.image = UIImage.init(named: "下箭头")
        }
        
        if (self.showMoreActionBlock != nil)
        {
            self.showMoreActionBlock!(self.showMore)
        }
        
    }
    
    func configModel(model : SetMealDetailModel){
        self.dataModel = model
        self.collectView.reloadData() 
    }
    
    @IBAction func needKnowAction(_ sender: UIButton) {
        if self.needKnowBlock != nil{
            self.needKnowBlock!()
        }
    }
    
    //MARK: collectionView
    func createCollectView(){
        
        //设置布局
        let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout.init()
        let itemSpac = 25.0
        layout.scrollDirection = .vertical //竖直
        layout.itemSize = CGSize.init(width: (kSCREEN_WIDTH - 81)/3, height: 126)
        //行距
        layout.minimumInteritemSpacing = 12
        layout.minimumLineSpacing = 12
        layout.sectionInset = .init(top: 12, left: itemSpac, bottom: 0, right: itemSpac)

        collectView.collectionViewLayout = layout
        collectView.backgroundColor = UIColor.clear
        collectView.delegate = self
        collectView.dataSource = self
        collectView.showsVerticalScrollIndicator = false
        collectView.isScrollEnabled = false
        collectView.register(withType: SetMealCollectionItem.self)
        
    }
    
    
}



//MARK: Delegate
extension MealCollectionView : UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout
{
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        
        if (self.dataModel?.mealFoodMsgs?.count ?? 0) > 9{
            if self.showMore{
                return self.dataModel?.mealFoodMsgs?.count ?? 0
            }else{
                return (self.dataModel?.mealFoodMsgs?.count ?? 0) > 9 ? 9 : self.dataModel?.mealFoodMsgs?.count ?? 0
            }
        }
        return self.dataModel?.mealFoodMsgs?.count ?? 0
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        
        let cell : SetMealCollectionItem = collectionView.dequeueReusableCell(withReuseIdentifier: "SetMealCollectionItem", for: indexPath) as! SetMealCollectionItem
        cell.configData(model: self.dataModel!.mealFoodMsgs![indexPath.row])
        return cell;
    }
    
    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 1
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let model = self.dataModel!.mealFoodMsgs![indexPath.row]
        model.selected = !model.selected
        self.collectView.reloadData()
        if self.changeFoodBlock != nil{
            self.changeFoodBlock!()
        }
    }
}