SwiftProject/MvpGoods/首页/Controller/YMBestChoice...

//
//  YMBestChoiceController.swift
//  MvpGoods
//
//  Created by 小花 on 2019/4/9.
//  Copyright © 2019 MVP. All rights reserved.
//

import UIKit
import ObjectMapper
import MJRefresh


class YMBestChoiceController: YMBaseViewController {
    
    var KBannerReuseIdentifier = "BannerReuseIdentifie"
    var KGoodsReuseIdentifier = "KGoodsReuseIdentifier"
    var KMainGoodCell = "MainGoodCell"
    var KGroupGoodCell = "GroupGoodCell"
    var KRecomCell = "KRecomCell"
    //外部变量
    var name: String?
    var id: Int?

    
    //私有变量
    var collectionView: UICollectionView?
    var bannerList = [YMBannerModel]()
    var dataArr = [YMTodayGoodModel]()
    var recomArr = [YMMainGoodModel]()
    var page = 1
    
    override func viewDidLoad() {
        super.viewDidLoad()

        self.view.makeLoading(offY:navBarHeight+40)
        setUpCollectionView()
        loadBannerData()
        loadGoodsData()
        loadYouLikeGoods()
    }
    
    
    //MARK: 网络相关
    //加载banner数据
    func loadBannerData() {
        let url = BASE_URL + "/api/v2/homeact/bannerlist"
        NetWorkTool.getRequest(url: url, param: [:], success: { (json) in
            let items = json["rst"]?["data"].arrayObject
            var imageList = [String]()
            for item in items! {
                let model = YMBannerModel(dict:item as! [String : AnyObject])
                self.bannerList.append(model)
                imageList.append(model.photo ?? "")
            }
            self.cycleView.setUrlsGroup(imageList)
            
        }) { (error) in
            
        }
    }
    
    func loadGoodsData() {
        let url = BASE_URL + "/api/v2/goods/goodsAndStockList"
        let para:[String: Any] = ["sort":"1",
                                  "page":page,
                                  "category_id":self.id ?? 0,
                                  "stype":"0"]
        NetWorkTool.postRequest(url: url, param: para, success: { (json) in
            let items = json["rst"]?.arrayObject
            if self.collectionView!.mj_header.isRefreshing {
                self.dataArr.removeAll()
            }
            for item in items! {
                let model = Mapper<YMTodayGoodModel>().map(JSON: item as! [String : Any])
                self.dataArr.append(model ?? YMTodayGoodModel())
            }
            self.collectionView?.mj_footer.endRefreshing()
            self.collectionView?.reloadData()
        }) { (error) in
            
        }
    }
    
    func loadYouLikeGoods() {
        let url = BASE_URL + "/api/v2/goods/stockTopCategoryList"
        let para: [String: Any] = ["page":1,
                                   "category_id":"2589",
                                   "sort":1,
                                   "is_has_coupon":1,
                                   "stype":"0"]
        
        NetWorkTool.postRequest(url: url, param: para, success: { (json) in
            let items = json["rst"]?["data"]["list"].arrayObject
            if self.collectionView!.mj_header.isRefreshing {
                self.recomArr.removeAll()
            }
            for item in items ?? [] {
                let model = Mapper<YMMainGoodModel>().map(JSON: item as! [String : Any])
                self.recomArr.append(model ?? YMMainGoodModel())
            }
            self.view.addSubview(self.collectionView!)
            self.view.dismissLoading()
            self.collectionView?.reloadData()
            self.collectionView?.mj_header.endRefreshing()
        }) { (error) in
            
        }
        
    }
    
    
    
    //初始化 CollectionView
    func setUpCollectionView() {
        let collectionView = UICollectionView(frame: CGRect(x: 0, y: 0, width: SCREENW, height: SCREENH-navHeight-tabBarHeight-41), collectionViewLayout:UICollectionViewFlowLayout())
        collectionView.delegate = self
        collectionView.dataSource = self
        collectionView.backgroundColor = UIColor.gloadGrayColor()
        collectionView.showsVerticalScrollIndicator = false
        collectionView.register(YMMainGoodCollectionCell.self, forCellWithReuseIdentifier: KMainGoodCell)
        collectionView.register(YMTodayGroupCollectionCell.self, forCellWithReuseIdentifier: KGroupGoodCell)
        collectionView.register(YMTodayRecomCell.self, forCellWithReuseIdentifier: KRecomCell)
        collectionView.register(UICollectionReusableView.self, forSupplementaryViewOfKind:UICollectionElementKindSectionHeader, withReuseIdentifier: KBannerReuseIdentifier)
        collectionView.register(UICollectionReusableView.self, forSupplementaryViewOfKind:UICollectionElementKindSectionHeader, withReuseIdentifier: KGoodsReuseIdentifier)
      
        let header = MJRefreshNormalHeader()
        header.setRefreshingTarget(self, refreshingAction: #selector(self.refreshData))
        collectionView.mj_header = header
        
        let footer = MJRefreshAutoNormalFooter()
        footer.setRefreshingTarget(self, refreshingAction: #selector(self.loadMoreData))
        collectionView.mj_footer = footer
        
        self.collectionView = collectionView
    }
    
    
    lazy var cycleView: ZCycleView = {
        let cycleView = ZCycleView(frame: CGRect(x: 0, y: 0, width: SCREENW, height:fitSize(x: 150) ))
        cycleView.timeInterval = 6
        cycleView.backgroundColor = UIColor.init(white: 0, alpha: 0.3)
        cycleView.pageControlIndictorImage = UIImage(named: "page_nor")
        cycleView.pageControlCurrentIndictorImage = UIImage(named: "page_sel")
        cycleView.pageControlHeight = 18
        cycleView.pageControlItemSize = CGSize(width: 8, height: 3)
        cycleView.pageControlAlignment = .right
        cycleView.itemSize = CGSize(width: 240, height: 90)
        cycleView.itemZoomScale = 1.5
        cycleView.didSelectedItem = {
            (index: Int)->Void in
            let model: YMBannerModel = self.bannerList[index]
            let goodModel = YMMainGoodModel()
            goodModel.coverWith(good_ID: model.click_param, pri: model.price, discount_pri: model.discount_price, coupon_pri: model.coupon_price, start_time: model.coupon_start_time, end_time: model.coupon_end_time)
            let detail = YMDetailViewController()
            detail.goodModel = goodModel
            self.navigationController?.pushViewController(detail, animated: true)
           
        }
        return cycleView
    }()
    
    lazy var bannerBg: UIImageView = {
        let img = UIImageView(frame: cycleView.bounds)
        img.image = UIImage(named: "App头图BG")
        return img
    }()
    
    lazy var imgHeader: UIImageView = {
        let imgView = UIImageView(frame: CGRect(x: 0, y: 0, width: fitSize(x: 141), height: fitSize(x: 17)))
        imgView.centerX = SCREENW/2
        imgView.centerY = fitSize(x: 20)
        imgView.image = UIImage(named: "good_gods")
        return imgView
    }()
    
    @objc func refreshData() {
        self.page = 1
        loadBannerData()
        loadGoodsData()
        loadYouLikeGoods()
        
    }
    
    @objc func loadMoreData() {
        self.page += 1
        loadGoodsData()
    }

}




///MARK: UICollectionViewDelegate
extension YMBestChoiceController: UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout {
    
    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 2
    }
    
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        if section == 0 {
            return 1
        }else {
            return self.dataArr.count
        }
        
    }
    
    //cell的大小
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        
        if indexPath.section == 0 {
            if recomArr.count == 0 {
                return CGSize(width: SCREENW, height: fitSize(x: 0))
            }
            return CGSize(width: SCREENW, height: fitSize(x: 230))
        }else {
            let model: YMTodayGoodModel = self.dataArr[indexPath.row]
            
            switch model.type {
            case 1:
                return CGSize(width: SCREEN_WIDTH, height: fitSize(x: 135))
                
            case 2:
                return CGSize(width: SCREEN_WIDTH, height: fitSize(x: 215))
                
            default: break
                
            }
        }
        
        
        return CGSize(width: SCREEN_WIDTH, height: fitSize(x: 135))
    }
    
     //每个分区的内边距
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets {
        
        if section == 0 {
            return UIEdgeInsetsMake(0, 0, 0, 0)
        }
        return UIEdgeInsetsMake(0, 0, 0, 0);
        
    }

     //最小 item 间距
   func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
        
       return 0;
   }

    //最小行间距
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
        
        return 5;
        
    }

    //每个分区区头尺寸
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> CGSize {
        if section == 0 {
            return CGSize (width: SCREEN_WIDTH, height: fitSize(x: 150))
        }
        
        return CGSize(width: SCREENW, height: fitSize(x: 40))
    }
   
    
    //返回区头、区尾实例
    func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView {
        

        if kind == UICollectionElementKindSectionHeader {
            
            if indexPath.section == 0 {
                let headview = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: KBannerReuseIdentifier, for: indexPath)
                headview.backgroundColor = UIColor.white
                headview.addSubview(self.bannerBg)
                headview.addSubview(self.cycleView)
                return headview;
            }else {
                
                let headview = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: KGoodsReuseIdentifier, for: indexPath)
                headview.backgroundColor = UIColor.white
                headview.addSubview(imgHeader)
                return headview;
            }
        }
        return UICollectionReusableView();
     
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        
        if indexPath.section == 0 {
            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: KRecomCell, for: indexPath) as! YMTodayRecomCell
            cell.setDataArray(dataArr: self.recomArr)
            cell.delegate = self
            return cell
        }else {
            let model: YMTodayGoodModel = self.dataArr[indexPath.row]
            
            switch model.type {
            case 1:
                let cell = collectionView.dequeueReusableCell(withReuseIdentifier: KMainGoodCell, for: indexPath) as! YMMainGoodCollectionCell
                cell.model = model.goods
                return cell
                
            case 2:
                let groupCell = collectionView.dequeueReusableCell(withReuseIdentifier: KGroupGoodCell, for: indexPath) as! YMTodayGroupCollectionCell
                groupCell.model = model
                groupCell.clickClosure = {
                    (model: YMMainGoodModel)->Void in
                    let detail = YMDetailViewController()
                    detail.goodModel = model
                    self.navigationController?.pushViewController(detail, animated: true)
                 }
                return groupCell
                
            default: break
                
            }
        }
        
        return UICollectionViewCell()
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        let detail = YMDetailViewController()
        let todayModel = self.dataArr[indexPath.row]
        detail.goodModel = todayModel.goods
        self.navigationController?.pushViewController(detail, animated: true)
    }
    
}

extension YMBestChoiceController: YMTodayRecomCellDelegate {
    func didSelectedItem(index: Int, model: YMMainGoodModel) {
        let detail = YMDetailViewController()
        detail.goodModel = model
        self.navigationController?.pushViewController(detail, animated: true)
    }
}