//
//  SBTContentViewCell.swift
//  SolarBT
//
//  Created by weclouds on 2019/3/11.
//  Copyright © 2019 weclouds. All rights reserved.
//

import UIKit

class SBTContentViewCell: UITableViewCell {

    var cellCollectionView:UICollectionView?
    
    //回调方法
    var cellForItemAtIndexPathBlock: ((IndexPath)->String)?
     var numberOfItemsInSectionBlock: ((Int)->Int)?
     var sizeForItemAtIndexPathBlock: ((UICollectionViewLayout?,IndexPath)->CGSize)?
     var ContentViewCellDidScrollBlock: ((UIScrollView)->Void)?
     var cellWithColorAtIndexPathBlock: ((IndexPath)->Bool)?
     var didSelectItemBlock: ((IndexPath)->Void)?
    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code
    }

    override func setSelected(_ selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)

      
    }
    
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        let layout = UICollectionViewFlowLayout()
        layout.minimumLineSpacing = 1.0 //间隔
        layout.minimumInteritemSpacing = 0;
        layout.scrollDirection = .horizontal //滚动方向
        cellCollectionView = UICollectionView(frame: CGRect(x: 0, y: 0, width: self.frame.size.width, height: self.frame.size.height), collectionViewLayout: layout)
        cellCollectionView?.showsHorizontalScrollIndicator = false
        if #available(iOS 11.0, *) {
            cellCollectionView?.contentInsetAdjustmentBehavior = .always
        }
        //设置边框
        cellCollectionView?.backgroundColor = UIColor.red
        cellCollectionView?.layer.backgroundColor = UIColor.lightGray.cgColor
        cellCollectionView?.layer.borderWidth = 1
        cellCollectionView?.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "inner.cell")
        cellCollectionView?.delegate = self
        cellCollectionView?.dataSource = self
        
        contentView.addSubview(cellCollectionView!)
        
        
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
}

extension SBTContentViewCell : UICollectionViewDelegate,UICollectionViewDataSource{
    //滚动代理
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        if let contentViewCellDidScrollBlock = ContentViewCellDidScrollBlock {
            contentViewCellDidScrollBlock(scrollView)
        }
    }
    
    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 1
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return numberOfItemsInSectionBlock!(section)
    }
    
    func collectionView(_ collectionView: UICollectionView,
                        layout collectionViewLayout: UICollectionViewLayout,
                        sizeForItemAt indexPath: IndexPath) -> CGSize {
        return sizeForItemAtIndexPathBlock!(collectionViewLayout,indexPath)
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        var intercell : UICollectionViewCell? = collectionView.dequeueReusableCell(withReuseIdentifier: "inner.cell", for: indexPath)
        if intercell != nil{
            for view in intercell!.contentView.subviews{
                view.removeFromSuperview()
            }
        }
        intercell!.layer.borderColor = UIColor.lightGray.cgColor
        intercell!.layer.borderWidth = 1.0
        
        let hasColor = false
        if hasColor == cellWithColorAtIndexPathBlock!(indexPath){
        
        intercell!.backgroundColor = hasColor ? UIColor.lightGray : UIColor.white
            let cellsize : CGSize = sizeForItemAtIndexPathBlock!(nil,indexPath)
        let width = cellsize.width
        let height = cellsize.height
        let rect = CGRect(x: 0, y: 0, width: width, height: height)
        let label = UILabel(frame: rect)
        label.text = cellForItemAtIndexPathBlock!(indexPath)
        label.textColor = UIColor.black
        label.textAlignment = .center
        intercell?.contentView.addSubview(label)
            
            
        }
        return intercell!
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        if let cellDidSelectBlock = didSelectItemBlock {
            cellDidSelectBlock(indexPath)
        }
    }
}