//
//  HomeViewController.swift
//  MTP2_iOS
//
//  Created by Handy_Cao on 2020/10/23.
//  Copyright © 2020 Muchinfo. All rights reserved.
//

import UIKit
import SDCycleScrollView
import SafariServices
import SDWebImage
import SwiftyAttributes
import WHToast
import GTMRefresh
import WebKit

/// 首页视图容器管理类
class HomeViewController: BaseViewController {
    
    // MARK: - 属性列表
    /// 系统设置
    @IBOutlet weak var settings: UIButton!
    /// 新卡抢购
    @IBOutlet weak var xkqg: UIButton!
    /// 热卖专区
    @IBOutlet weak var rmzq: UIButton!
    /// 我的订单
    @IBOutlet weak var wddd: UIButton!
    /// 海南网警
    @IBOutlet weak var police: UIButton!
    /// 海拔资讯
    @IBOutlet weak var hbzx: UIButton!
    /// 海拔资讯
    @IBOutlet weak var hbzxStackView: UIStackView!
    /// 我的卡包
    @IBOutlet weak var wdkb: UIButton!
    /// 主滚动视图
    @IBOutlet weak var scrollView: UIScrollView!
    /// 操作视图
    @IBOutlet weak var operationView: UIView!
    
    /// 图片轮播图
    @IBOutlet weak var bannerView: SDCycleScrollView! {
        didSet {
            bannerView.bannerImageViewContentMode = .scaleAspectFill
            bannerView.autoScrollTimeInterval = 5.0
            bannerView.autoScroll = true
            bannerView.infiniteLoop = true
            bannerView.scrollDirection = .horizontal
            bannerView.layer.masksToBounds = true
            bannerView.layer.cornerRadius = 10.0
            bannerView.delegate = self
        }
    }
    /// 商品数据集合视图
    @IBOutlet weak var collectionView: UICollectionView! {
        didSet {
            if collectionView.responds(to: #selector(setter: UICollectionView.isPrefetchingEnabled)) {
                collectionView.isPrefetchingEnabled = false
            }
            /// 设置约束
            collectionView.setCollectionViewLayout(flowLayout, animated: true)
        }
    }
    /// 商品数据列表高度
    @IBOutlet weak var collectionViewHeightConstraint: NSLayoutConstraint!
    /// 搜索框
    @IBOutlet weak var searchBar: UIButton!
    
    /// 数据显示集合视图约束
    lazy var flowLayout: UICollectionViewFlowLayout = {
        /// 最小行间距，默认是0
        $0.minimumLineSpacing = 0
        /// 最小左右间距，默认是10
        $0.minimumInteritemSpacing = 0
        /// 区域内间距，默认是 UIEdgeInsetsMake(0, 0, 0, 0)
        $0.sectionInset = UIEdgeInsets(top: 0.0, left: 0, bottom: 0, right: 0)
        /// 水平滚动
        $0.scrollDirection = .vertical
        return $0
    } (UICollectionViewFlowLayout())
    /// 轮播图数据
    var configs: [MoImageConfigs] = []
    /// 商品数据信息
    var goods: [MoGoodsInfo] = [] {
        didSet {
            /// 刷新数据
            self.collectionView.reloadData()
            /// 设置约束
            collectionViewHeightConstraint.constant = CGFloat((goods.count%2 == 0) ? (goods.count/2) : (goods.count/2+1))*(((collectionView.width/2)*0.9)+80.0)
            
            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now()+0.5, execute: {
                if self.goods.count > 0 {
                    /// 等待UI操作完成，也就是tableView刷新完之后执行
                    DispatchQueue.main.async { [weak self] in
                        if self?.visibleGoodsCodes.count != 0 { self?.shouldSubscriptGoodsCodes = self?.visibleGoodsCodes }
                    }
                }
            })
        }
    }
    
    /// GoodsCellIdentifier
    let GoodsCellIdentifier = "Goods_Cell"
    
    // MARK: - 生命周期
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        
        /// 设置TabBar图片
        self.tabBarItem.image = UIImage(named: "home_normal")?.withRenderingMode(.alwaysOriginal)
        self.tabBarItem.selectedImage = UIImage(named: "home_selected")?.withRenderingMode(.alwaysOriginal)
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        /// 隐藏导航栏
        self.navigationController?.setNavigationBarHidden(true, animated: true)
        /// 行情侦听
        initListen()
    }
    
    override func viewDidDisappear(_ animated: Bool) {
        super.viewDidDisappear(animated)
        /// 清除广播侦听
        MTP2BusinessCore.shared.broadcastManager?.removeBroadcastListener(owner: self, forName: .ReceiveTradeQuote)
    }
    
    override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
        super.viewWillTransition(to: size, with: coordinator)
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        /// 不需要返回按钮
        addBackBarButtonItem(true)
        /// UI界面初始化
        buildView()
        /// 数据初始化
        initData()
    }
    
    // MARK: - 行情初始化
    /// 行情监听
    fileprivate func initListen() {
        if goods.count > 0 {
            /// 等待UI操作完成，也就是tableView刷新完之后执行
            DispatchQueue.main.async { [weak self] in
                if self?.visibleGoodsCodes.count != 0 { self?.shouldSubscriptGoodsCodes = self?.visibleGoodsCodes }
            }
        }
        
        /// 侦听行情推送广播
        MTP2BusinessCore.shared.broadcastManager?.addBroadcastListener(owner: self, action: .ReceiveTradeQuote) { [weak self] in
            guard let quoteGoodsInfos = $0.object as? [(goodsHqCode: String, exchHqCode: String)],
                let weakSelf = self else { return }
            
            /// 有数据
            if quoteGoodsInfos.count != 0 {
                /// 待刷新行
                var refreshIndexPaths = [IndexPath]()
                
                DispatchQueue.main.async {
                    for (index, cell) in weakSelf.collectionView.visibleCells.enumerated() {
                        if quoteGoodsInfos.first(where: { $0.goodsHqCode == (cell as? GoodsCell)?.model?.goodscode }) != nil {
                            let indexPath = IndexPath(row: index, section: 0)
                            if refreshIndexPaths.firstIndex(of: indexPath) == nil {
                                /// 记录待刷新行
                                /// 判断是否在可见区域
                                if weakSelf.collectionView.indexPathsForVisibleItems.firstIndex(of: indexPath) != nil {
                                    refreshIndexPaths.append(indexPath)
                                }
                            }
                        }
                    }
                }
                
                /// 刷新行情列表
                if refreshIndexPaths.count > 0 {
                    DispatchQueue.main.async {
                        weakSelf.collectionView.reloadItems(at: refreshIndexPaths)
                    }
                }
            }
        }
    }
    
    // MARK: - 初始化
    /// UI界面初始化
    fileprivate func buildView() {
        /// addLoadingView
        self.addLoadingView()
        
        /// 添加下拉刷新控件
        self.scrollView.gtm_addRefreshHeaderView(refreshHeader: DefaultGTMRefreshHeader()) {
            if let _ = UserDefaultsUtils.addressInfo() {
                /// 重置请求条件
                self.requestHomePageDatas()
            } else {
                /// 游客登录
                /// startAnimating
                self._anim?.startAnimating()
                /// 查询未登录前的相关信息
                MTP2BusinessCore.shared.requestCommonDatas { (_) in
                    DispatchQueue.main.async {
                        /// stopAnimating
                        self._anim?.stopAnimating()
                        /// 获取首页相关数据
                        self.requestHomePageDatas()
                    }
                }
            }
        }
    }
    
    /// 数据初始化
    fileprivate func initData() {
        /// 当前登录了
        if let _ = MTP2BusinessCore.shared.accountManager?.loginRsp {
            /// 获取首页相关数据
            self.requestHomePageDatas()
        } else {
            /// 游客登录
            /// startAnimating
            self._anim?.startAnimating()
            /// 查询未登录前的相关信息
            MTP2BusinessCore.shared.requestCommonDatas { (_) in
                DispatchQueue.main.async {
                    /// stopAnimating
                    self._anim?.stopAnimating()
                    /// 获取首页相关数据
                    self.requestHomePageDatas()
                }
            }
        }
    }
    
    // MARK: - 按钮交互
    /// 按钮相应点击事件方法
    /// - Parameter sender: sender
    @IBAction fileprivate func onButtonPressed(_ sender: UIButton) {
        switch sender {
        case settings:   /// 系统设置
            self.push(storyboardName: "Settings", storyboardId: "Settings", checkLogin: false)
        case rmzq,
             xkqg: /// 热卖专区 新卡抢购
            guard let main = self.appDelegate.window?.rootViewController as? MainViewController,
                  let quoteController = (main.viewControllers?[1] as? BaseNavigationController)?.viewControllers[0] as? QuoteViewController else { return }
            main.selectedIndex = 1
            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now()+0.4) {
                /// 选中
                quoteController.segmentedView.defaultSelectedIndex = (sender == self.rmzq ? 0 : 1)
                quoteController.segmentedView.reloadData()
                quoteController.segmentedView.delegate?.segmentedView(quoteController.segmentedView, didSelectedItemAt: sender == self.rmzq ? 0 : 1)
            }
        case hbzx:    /// 海拔资讯
            let auth = UIStoryboard(name: "Settings", bundle: nil).instantiateViewController(withIdentifier: "Auth") as! AuthAddressViewController
            auth.title = "海拔资讯"
            auth.url = MTP2BusinessCore.shared.address?.newsUrl ?? ""
            self.navigationController?.pushViewController(auth, animated: true)
        case wddd:     /// 我的订单
            self.push(storyboardName: "Order", storyboardId: "Order")
        case wdkb:     /// 我的商品
            self.push(storyboardName: "Quote", storyboardId: "MyGoods")
        case police:   /// 海南网警
            push(storyboardName: "Feedback", storyboardId: "Feedback")
        case searchBar: /// 跳转到检索页面
            push(storyboardName: "Quote", storyboardId: "Search", checkLogin: false)
        default:
            break
        }
    }

    // MARK: - 接口请求
    /// 查询首页数据信息
    fileprivate func requestHomePageDatas() {
        /// 异常
        guard let goodsManager = MTP2BusinessCore.shared.goodsManager,
              let noticeManager = MTP2BusinessCore.shared.noticeManager else {
            return
        }
        
        let group = DispatchGroup()
        /// startAnimating
        self._anim?.startAnimating()
        
        var hotGoods: [MoGoodsInfo] = []
        /// 已登录
        if MTP2BusinessCore.shared.getLoginStatus() {
            /// 资金账号
            let accountID = MTP2BusinessCore.shared.accountManager?.getCurrentTAAccountInfo()?.accountId ?? 0
            /// 获取商城商品数据
            group.enter()
            goodsManager.requestQueryHsbyMarketGoodses(goodsManager.getMarketIDs(.TRADEMODE_TRADEMODE_HSBY_SHOP), accountID, nil, nil, nil) { (isComplete, error, marketGoodses) in
                hotGoods.append(contentsOf: marketGoodses ?? [])
                group.leave()
            }
        } else {
            /// 获取商城商品数据
            group.enter()
            goodsManager.requestQueryHsbyVisitorMarketGoodses(goodsManager.getMarketIDs(.TRADEMODE_TRADEMODE_HSBY_SHOP), nil, nil, nil) { (isComplete, error, marketGoodses) in
                hotGoods.append(contentsOf: marketGoodses ?? [])
                group.leave()
            }
        }
        
        /// 获取热门商品
        group.enter()
        goodsManager.requestQueryTopGoods(goodsManager.getMarketIDs(.TRADEMODE_LISTING_SELECT), nil, nil) { (isComplete, error, topGoods) in
            hotGoods.append(contentsOf: topGoods ?? [])
            group.leave()
        }
        
        /// 发送请求
        group.enter()
        /// 查询轮播图
        noticeManager.requestQueryImageConfigs { (isComplete, error, imageConfigs) in
            self.configs = imageConfigs?.filter({$0.isshow == 1}) ?? []
            group.leave()
        }
        
        group.notify(queue: DispatchQueue.main) {
            /// stopAnimating
            self._anim?.stopAnimating()
            /// endRefreshing
            self.scrollView.endRefreshing()
            
            /// 热门商品数据
            self.goods = hotGoods.sorted(by: { (obj1, obj2) -> Bool in
                return obj1.hotindex>obj2.hotindex
            })
            
            /// 轮播图相关
            if self.configs.count != 0 {
                let paths = self.configs.map({ (model) -> String in
                    let managerUrl = MTP2BusinessCore.shared.address?.openApiUrl ?? ""
                    let url = managerUrl+NSString(string: model.imagepath).replacingOccurrences(of: "./", with: "/")
                    return url
                })
                self.bannerView.imageURLStringsGroup = paths
            }
            
            /// 新闻地址信息
            if let url = MTP2BusinessCore.shared.address?.newsUrl,
               url != "" {
                self.hbzxStackView.isHidden = false
            } else {
                self.hbzxStackView.isHidden = true
            }
        }
    }
    
    // MARK: - 订阅行情相关
    var uuid: String = UUID().uuidString
    
    var shouldSubscriptGoodsCodes: Set<String>? {
        didSet {
            guard let quoteSubscriptManager = MTP2BusinessCore.shared.quoteSubscriptManager else { return }
            quoteSubscriptManager.updateQuoteSubcriptGoods(uuid: uuid, goodsCode: shouldSubscriptGoodsCodes ?? [])
        }
    }
    
    var visibleGoodsCodes: Set<String> {
        var goodsCodes = Set<String>()
        self.collectionView.visibleCells.forEach { (cell) in
            if let quoteCell = cell as? GoodsCell,
               let goodsCode = quoteCell.model?.goodscode {
                goodsCodes.insert(goodsCode)
            }
        }
        return goodsCodes
    }
    
    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */

}

// MARK: - SFSafariViewControllerDelegate
extension HomeViewController: SFSafariViewControllerDelegate {
    func safariViewControllerDidFinish(_ controller: SFSafariViewController) {
        controller.dismiss(animated: true, completion: {})
    }
}

// MARK: - UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout
extension HomeViewController: UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return goods.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: GoodsCellIdentifier, for: indexPath) as! GoodsCell
        cell.model = goods[indexPath.row]
        return cell
    }
    
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        return CGSize(width: collectionView.width/2, height: ((collectionView.width/2)*0.9)+80.0)
    }
    
    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
        /// 商品详情
        let goodsDetailController = UIStoryboard(name: "Quote", bundle: nil).instantiateViewController(withIdentifier: "GoodsDetail") as! GoodsDetailViewController
        goodsDetailController.model = self.goods[indexPath.row]
        self.navigationController?.pushViewController(goodsDetailController, animated: true)
    }
}

// MARK: - SDCycleScrollViewDelegate
extension HomeViewController: SDCycleScrollViewDelegate {
    func cycleScrollView(_ cycleScrollView: SDCycleScrollView!, didScrollTo index: Int) {}

    func cycleScrollView(_ cycleScrollView: SDCycleScrollView!, didSelectItemAt index: Int) {
        /// 广告跳转
        if configs[index].urltype == 1,
           configs[index].url != ""  {
            let urlString = !configs[index].url.lowercased().hasPrefix("http://") ? ("http://"+configs[index].url) : configs[index].url
            guard let url = URL(string: urlString) else { return }
            let safriViewController = SFSafariViewController(url: url)
            safriViewController.delegate = self
            self.present(safriViewController, animated: true, completion: {})
        } else { /// 商品ID
            /// 异常
            guard let goodsManager = MTP2BusinessCore.shared.goodsManager else {
                return
            }
            if configs[index].trademode == ETradeMode.TRADEMODE_LISTING_SELECT,
               let goodsInfo = MTP2BusinessCore.shared.goodsManager?.goodsInfos.first(where: {"\($0.goodsid)" == configs[index].url}) { /// 竞价商品
                let goodsDetailController = UIStoryboard(name: "Quote", bundle: nil).instantiateViewController(withIdentifier: "GoodsDetail") as! GoodsDetailViewController
                goodsDetailController.model = goodsInfo
                self.navigationController?.pushViewController(goodsDetailController, animated: true)
            } else { /// 商城商品
                if MTP2BusinessCore.shared.getLoginStatus() { /// 已登录
                    goodsManager.requestQueryHsbyMarketGoodses(goodsManager.getMarketIDs(.TRADEMODE_TRADEMODE_HSBY_SHOP), nil, MTP2BusinessCore.shared.accountManager?.getCurrentTAAccountInfo()?.accountId, configs[index].url, nil, callback: { (isComplete, error, objs) in
                        DispatchQueue.main.async {
                            if isComplete, let goodsInfo = objs?.first(where: {"\($0.goodsid)" == self.configs[index].url})  {
                                let goodsDetailController = UIStoryboard(name: "Quote", bundle: nil).instantiateViewController(withIdentifier: "GoodsDetail") as! GoodsDetailViewController
                                goodsDetailController.model = goodsInfo
                                self.navigationController?.pushViewController(goodsDetailController, animated: true)
                            }
                        }
                    })
                } else { /// 未登录
                    goodsManager.requestQueryHsbyVisitorMarketGoodses(goodsManager.getMarketIDs(.TRADEMODE_TRADEMODE_HSBY_SHOP), nil, configs[index].url, nil, callback: { (isComplete, error, objs) in
                        DispatchQueue.main.async {
                            if isComplete, let goodsInfo = objs?.first(where: {"\($0.goodsid)" == self.configs[index].url})  {
                                let goodsDetailController = UIStoryboard(name: "Quote", bundle: nil).instantiateViewController(withIdentifier: "GoodsDetail") as! GoodsDetailViewController
                                goodsDetailController.model = goodsInfo
                                self.navigationController?.pushViewController(goodsDetailController, animated: true)
                            }
                        }
                    })
                }
            }
        }
    }
}

/// 商品数据Cell
class GoodsCell: UICollectionViewCell {
    /// 背景图片
    @IBOutlet weak var image: UIImageView!
    /// 商品名称
    @IBOutlet weak var goodsName: UILabel!
    /// 价格
    @IBOutlet weak var price: UILabel!
    
    /// 数据集合
    var model: MoGoodsInfo? {
        didSet {
            /// 更新显示行情数据
            guard let obj = MTP2BusinessCore.shared.goodsManager?.goodsInfos.first(where: { $0.goodscode == model?.goodscode }) else { return }
            /// 商品名称
            goodsName.text = obj.goodsname
            /// 价格
            if obj.trademode == .TRADEMODE_LISTING_SELECT {
                /// 竞价商品
                price.attributedText = (obj.currencysign.withFont(.font_12)+" \((obj.getLast() == 0.0 ? obj.last : obj.getLast()).toDownString(reserve: obj.decimalplace))".withFont(.font_16)).withTextColor(.red)
            } else if obj.trademode == .TRADEMODE_TRADEMODE_HSBY_SHOP {
                /// 商城商品
                price.attributedText = (("\(obj.currencysign)".withFont(.font_12))+("\(obj.goodsprice)".withFont(.font_16))).withTextColor(.red)
            } else {
                /// 新品抢购
                price.attributedText = (("抢购价：\(obj.currencysign)".withFont(.font_12))+(obj.refprice.description.withFont(.font_16))).withTextColor(.red)
            }
            /// 地址异常
            if let url = StringUtils.getImageUrl(obj.picurls) {
                /// 背景图片
                image.sd_setImage(with: url, placeholderImage: UIImage(named: "placeholder_image"), options: .queryDiskDataSync, context: nil)
            }
        }
    }
}