platform-ios/RainbowPlanet/RainbowPlanet/Modules/CommunityModule/CommunityRecommendDetail/View/RecommendSimilarCell.swift

//
//  RecommendSimilarCell.swift
//  RainbowPlanet
//
//  Created by Christopher on 2019/6/14.
//  Copyright © 2019 RainbowPlanet. All rights reserved.
//  推荐图文内容--相关推荐のCell

import UIKit

class RecommendSimilarCell: UITableViewCell {
    
    class func cellWith(tableView:UITableView,indexPath:IndexPath) -> RecommendSimilarCell {
        let ID = "RecommendSimilarCell"
        tableView.register(RecommendSimilarCell.self, forCellReuseIdentifier: ID)
        let cell : RecommendSimilarCell = tableView.dequeueReusableCell(withIdentifier: ID, for: indexPath) as! RecommendSimilarCell
        cell.indexPath = indexPath
        return cell
    }
    
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        setupViews()
        setupLayouts()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    var indexPath: IndexPath? {
        didSet {
            
        }
    }
    
    //MRAK: - 设置View
    private func setupViews() {
        self.selectionStyle = .none
        backgroundColor = kf7f8faColor
        addSubview(collectionView)
    }
    
    private func setupLayouts() {
        collectionView.snp.makeConstraints { (make) in
            make.top.equalTo(0)
            make.left.equalTo(5)
            make.right.equalTo(-5)
            make.height.equalTo(200)
        }
    }
    
    private lazy var collectionView: UICollectionView = {
        let collectionView = UICollectionView.init(frame: CGRect.zero, collectionViewLayout: collectionViewLayout)
        collectionView.backgroundColor = kf7f8faColor
        collectionView.delegate = self;
        collectionView.dataSource = self;
        collectionView.showsVerticalScrollIndicator = false
        collectionView.showsHorizontalScrollIndicator = false
        collectionView.bounces = false
        collectionView.isScrollEnabled = false
        return collectionView
    }()
    private lazy var collectionViewLayout: WaterFallLayout = {
        let collectionViewLayout = WaterFallLayout()
        collectionViewLayout.delegate = self
        collectionViewLayout.scrollDirection = .horizontal
        return collectionViewLayout
    }()
    
    var collectionViewHeight : CGFloat?
    //加载数据
    func reloadData() {
        //collectionView重新加载数据
        self.collectionView.reloadData()
        //更新collectionView的高度约束
        let contentSize = self.collectionView.collectionViewLayout.collectionViewContentSize
        collectionViewHeight = contentSize.height
        self.collectionView.snp.remakeConstraints { (make) in
            make.top.equalTo(0)
            make.left.equalTo(5)
            make.right.equalTo(-5)
            make.height.equalTo(contentSize.height)
            make.bottom.lessThanOrEqualToSuperview()
            
        }
        self.collectionView.collectionViewLayout.invalidateLayout()
    }
    
    var heights : Array<CGFloat>?
    var communityPostDataModels : Array<CommunityPostDataModel>? {
        didSet {
            self.collectionView.reloadData()
        }
    }
    var heightModel : HeightModel?{
        didSet {
            heightModel?.height = collectionViewHeight!
        }
    }
    
}

extension RecommendSimilarCell : WaterFallLayoutDelegate {
    func collectionView(_ collectionView: UICollectionView!, heightOfItemAt indexPath: IndexPath!) -> CGFloat {
        return heights?.isEmpty ?? true ? 0 : heights?[indexPath.row] ?? 0
    }
    func contentInsets(for collectionView: UICollectionView!) -> UIEdgeInsets {
        return UIEdgeInsets(top: 5, left: 5, bottom: 5, right: 5)
    }
    func columenCounts(for collectionView: UICollectionView!) -> Int32 {
        return 2
    }
    func horizontalGap(for collectionView: UICollectionView!) -> CGFloat {
        return 5
    }
    func verticalGap(for collectionView: UICollectionView!) -> CGFloat {
        return 5
    }
}


extension RecommendSimilarCell: UICollectionViewDelegateFlowLayout,UICollectionViewDataSource {
    
    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 1
        
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return communityPostDataModels?.isEmpty ?? true ? 0 : communityPostDataModels?.count ?? 0
        
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = SearchContentListCollectionCell.cellWith(collectionView: collectionView, indexPath: indexPath)
        cell.communityPostDataModel = communityPostDataModels?[indexPath.row]
        cell.userClosure = {
            [weak self] in
            if cell.communityPostDataModel?.uid != UserModel.shared().getModel()?.uid {
                let vc = OtherPersonalCenterViewController()
                vc.uid = cell.communityPostDataModel?.uid ?? 0
                self?.findViewController().navigationController?.pushViewController(vc, animated: true)
            }
        }
        return cell
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let communityPostDataModel = communityPostDataModels?[indexPath.row]
        
        if PostType(rawValue: communityPostDataModel?.type ?? "image") == .image || PostType(rawValue: communityPostDataModel?.type ?? "html") == .html {
            let vc = CommunityRecommendController()
            vc.id = communityPostDataModel?.id ?? 0
            findViewController().navigationController?.pushViewController(vc, animated: true)
        }else {
            let vc = CommunityVideoListController()
            vc.contentId = communityPostDataModel?.id ?? 0
             findViewController().navigationController?.pushViewController(vc, animated: true)
        }
        
        
    }
    
}