//
//  TradeViewController.swift
//  MTP2_iOS
//
//  Created by Handy_Cao on 2020/10/29.
//  Copyright © 2020 Muchinfo. All rights reserved.
//

import UIKit
import SDWebImage
import NVActivityIndicatorView
import WHToast

/// 购买视图容器控制类
class TradeViewController: BaseViewController {
    
    // MARK: - 属性列表
    /// 公司名称
    @IBOutlet weak var company: UILabel!
    /// 标题
    @IBOutlet weak var goodsName: UILabel!
    /// 商品图片
    @IBOutlet weak var goodsImage: UIImageView!
    /// 单号
    @IBOutlet weak var orderNo: UILabel!
    /// 资金提示信息
    @IBOutlet weak var amountTips: UILabel!
    /// 提示信息
    @IBOutlet weak var tips: UILabel!
    /// 金额范围
    @IBOutlet weak var priceRange: UILabel!
    /// 价格
    @IBOutlet weak var price: UILabel!
    /// 购买价格
    @IBOutlet weak var priceField: IBNumberEditText! {
        didSet {
            priceField.valueType = 2
            priceField.delegate = self
        }
    }
    /// 购买数量
    @IBOutlet weak var qtyField: IBNumberEditText! {
        didSet {
            qtyField.valueType = 1
            qtyField.delegate = self
        }
    }
    /// 卖家列表
    @IBOutlet weak var tableView: UITableView!
    /// 高度
    @IBOutlet weak var tableViewHeightConstraint: NSLayoutConstraint!
    /// 提交
    @IBOutlet weak var submit: UIButton!
    /// 提交
    @IBOutlet weak var refresh: UIButton!
    
    /// CellIdentifier
    let CellIdentifier = "Trade_Cell"
    /// 商品数据
    override var takeInfo: Any? {
        didSet {
            guard let obj = takeInfo as? MoGoodsInfo else { return }
            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now()+0.5) {
                /// 显示商品详情数据信息
                self.showGoodsDetailInfo(obj)
                /// 行情订阅
                self.subscriptQuote()
            }
        }
    }
    /// 卖家挂牌委托单数据
    var orderDetails: [MoHsbyGoodsOrderDetail] = [] {
        didSet {
            /// 刷新列表数据
            self.tableView.reloadData()
            /// 重新设置高度约束
            self.tableViewHeightConstraint.constant = CGFloat(orderDetails.count)*50.0
            /// 是否隐藏提示
            self.tips.isHidden = orderDetails.count != 0
            /// setTitle
            self.submit.setTitle(orderDetails.count == 0 ? "发布求购" : "提交订单", for: .normal)
            /// orderTips
            orderTips.isHidden = orderDetails.count == 0
        }
    }
    /// 提示信息
    @IBOutlet weak var orderTips: UILabel!
    /// 委托数量
    var orderQty: Int = 0 {
        didSet {
            qtyField.currentIntNumbers = orderQty
            /// 计算购买金额
            self.calculate()
        }
    }

    // MARK: - 生命周期相关
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        /// UI界面初始化
        buildView()
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        /// 隐藏导航栏
        self.navigationController?.setNavigationBarHidden(false, animated: true)
        
        /// 侦听行情推送广播
        MTP2BusinessCore.shared.broadcastManager?.addBroadcastListener(owner: self, action: .ReceiveTradeQuote) { [unowned self] in
            /// 异常情况
            guard let goodsQuoteInfo = $0.object as? [(goodsHqCode: String, exchHqCode: String)],
                goodsQuoteInfo.count != 0,
                let goodsManager = MTP2BusinessCore.shared.goodsManager,
                let goods = self.takeInfo as? MoGoodsInfo else { return }

            /// 更新商品行情信息
            goodsQuoteInfo.forEach {
                if $0.goodsHqCode == goods.goodscode,
                   let goodsInfo = goodsManager.goodsInfos.first(where: {$0.goodsid == goods.goodsid}) {
                    DispatchQueue.main.async {
                        /// 更新价格
                        self.price.text = "\(goods.currencysign) \(goodsInfo.getLast() == 0.0 ? "\(goods.last)" : goodsInfo.getLast().toString(reserve: goodsInfo.decimalplace))"
                        if goods.moQuoteInfo?.timeStamp != nil {
                            /// 当前价格
                            self.priceField.currentDoubleNumbers = goodsInfo.getLast() == 0.0 ? goods.last : goodsInfo.getLast()
                        }
                        
                    }
                }
            }
        }
    }
    
    deinit {
        /// 移出行情广播
        MTP2BusinessCore.shared.broadcastManager?.removeBroadcastListener(owner: self, forName: .ReceiveTradeQuote)
    }
    
    // MARK: - 数据初始化
    /// UI界面初始化
    fileprivate func buildView() {
        /// addLoadingView
        self.addLoadingView()
    }
    
    /// 显示商品详情数据信息
    /// - Parameter obj: obj
    fileprivate func showGoodsDetailInfo(_ obj: MoGoodsInfo) {
        /// 异常
        guard let accountManager = MTP2BusinessCore.shared.accountManager else { return }
        /// 商品名称
        self.goodsName.text = obj.goodsname
        /// 商品编号
        self.orderNo.text = obj.goodscode
        /// 商品价格
        self.price.text = "\(obj.currencysign) \(obj.getLast() == 0.0 ? obj.last : obj.getLast())"
        /// 价格范围
        priceRange.text = "\(obj.limitdown)<= 价格范围 <= \(obj.limitup)"
        /// 供应商名称
        company.text =  obj.vendorname
        /// 输入框价格
        priceField.incrementDoubleNum = obj.stepvalue
        priceField.minDoubleNum = obj.limitdown
        priceField.maxDoubleNum = obj.limitup
        priceField.decimalPlace = obj.decimalplace
        priceField.currentDoubleNumbers = obj.getLast() == 0.0 ? obj.last : obj.getLast()
        /// 查询对手买家挂牌信息
        self.requestQueryHsbyGoodsOrderDetails(obj.last.toString(reserve: 2))
        
        /// 输入步进值
        qtyField.incrementIntNum = obj.lotsize
        qtyField.minIntNum = obj.lotsize
        qtyField.currentIntNumbers = obj.lotsize
        qtyField.maxIntNum = obj.buymaxqty == 0 ? Int.max : obj.buymaxqty
        /// 查询资金信息
        accountManager.loginQueryReq(queryItem: "1,2") { (isComplete, error) in
            DispatchQueue.main.async {
                /// 计算购买金额
                self.calculate()
            }
        }
        /// 商品图片
        guard let url = StringUtils.getImageUrl(obj.picurls) else { return }
        goodsImage.sd_setImage(with: url, placeholderImage: UIImage(named: "placeholder_image"), options: .queryDiskDataSync, context: nil)
    }
    
    // MARK: - 交互相关
    /// UITextField输入值发生改变响应事件
    /// - Parameter sender: sender
    @IBAction func onValueChanged(_ sender: UITextField) {}
    
    /// onButtonPressed
    /// - Parameter sender: sender
    @IBAction fileprivate func onButtonPressed(_ sender: UIControl) {
        switch sender {
        case submit: 
            let isListing = !tableView.visibleCells.contains { (cell) -> Bool in
                return (cell as? TradeCell)?.isCheck ?? false
            }
            /// 有对手委托单得时候必须选一个
            if isListing, orderDetails.count != 0 {
                WHToast.showError(withMessage: "请选择卖家", duration: 1.5, finishHandler: {})
                return
            }
            if isListing {
                /// 买挂牌
                doListingTrade()
            } else {
                /// 买摘牌
                doDeListingTrade()
            }
        case refresh: /// 刷新按钮
            /// 更新单据
            self.requestQueryHsbyGoodsOrderDetails(priceField.currentDoubleNumbers.toString(reserve: 2))
        default:
            break
        }
    }

    // MARK: - 接口请求
    /// 买挂牌提交请求方法
    fileprivate func doListingTrade() {
        /// 异常
        guard let tradeManager = MTP2BusinessCore.shared.tradeManager,
              let obj = takeInfo as? MoGoodsInfo,
              check() else { return }
        
        /// 构建交易参数
        let tradeParam = MoTradeParam()
        /// 买卖方向
        tradeParam.buyOrSell = .ORDERDIRECTION_BUY
        /// 数量
        tradeParam.orderQty = Double(qtyField.currentIntNumbers)
        /// 挂牌价格
        tradeParam.orderPrice = priceField.currentDoubleNumbers
        /// 挂牌点选类型
        tradeParam.delistingType = .DELISTINGTYPE_SELECTED
        /// 点选成交
        tradeParam.listingSelectType = .LISTINGSELECTTYPE_LISTING
        /// 有效类型
        tradeParam.validType = .VALIDTYPE_DR
        /// 下单类型
        tradeParam.buildType = .BUILDTYPE_OPEN
        /// 时间有效类型
        tradeParam.timevalidType = .VALIDTYPE_DR
        /// 市场编号
        tradeParam.marketID = obj.marketid
        /// 商品ID
        tradeParam.goodsID = obj.goodsid
        
        /// 开启Loading
        NVActivityIndicatorPresenter.sharedInstance.startAnimating(ActivityData(message: "购买中......", type: .ballClipRotate, color: UIColor.loding(), backgroundColor: .clear), NVActivityIndicatorView.DEFAULT_FADE_IN_ANIMATION)
        
        tradeManager.tradeCommision(tradeParam: tradeParam) { [weak self] (isSuccess, error, orderNo) in
            DispatchQueue.main.async {
                
                /// dismisss loding.....
                NVActivityIndicatorPresenter.sharedInstance.stopAnimating(NVActivityIndicatorView.DEFAULT_FADE_OUT_ANIMATION)
                
                if isSuccess {
                    /// 返回上次视图
                    WHToast.showSuccess(withMessage: "请求成功", duration: 1.5) {
                        self?.navigationController?.popViewController(animated: true)
                    }
                } else {
                    WHToast.showError(withMessage: "请求失败，\(ErrorUtils.getDesc(errorCode: error?.retCode ?? -99999) ?? "未知错误")", duration: 1.5, finishHandler: {})
                }
            }
        }
    }
    
    /// 买摘牌提交请求方法
    fileprivate func doDeListingTrade() {
        /// 异常
        guard let tradeManager = MTP2BusinessCore.shared.tradeManager,
              let obj = takeInfo as? MoGoodsInfo,
              check() else { return }
        
        let group = DispatchGroup()
        
        /// 开启Loading
        NVActivityIndicatorPresenter.sharedInstance.startAnimating(ActivityData(message: "购买中......", type: .ballClipRotate, color: UIColor.loding(), backgroundColor: .clear), NVActivityIndicatorView.DEFAULT_FADE_IN_ANIMATION)
        
        /// 构建交易参数
        let tradeParam = MoTradeParam()
        /// 买卖方向
        tradeParam.buyOrSell = .ORDERDIRECTION_BUY
        /// 挂牌点选类型
        tradeParam.delistingType = .DELISTINGTYPE_SELECTED
        /// 点选成交
        tradeParam.listingSelectType = .LISTINGSELECTTYPE_DELISTING
        /// 有效类型
        tradeParam.validType = .VALIDTYPE_DR
        /// 下单类型
        tradeParam.buildType = .BUILDTYPE_OPEN
        /// 时间有效类型
        tradeParam.timevalidType = .VALIDTYPE_DR
        /// 市场编号
        tradeParam.marketID = obj.marketid
        /// 商品ID
        tradeParam.goodsID = obj.goodsid
        
        for cell in tableView.visibleCells {
            if let cell = cell as? TradeCell, cell.isCheck {
                /// 挂牌价格
                tradeParam.orderPrice = cell.model?.orderprice ?? 0.0
                /// 关联单号
                tradeParam.relatedID = UInt64(cell.model?.orderid ?? "0") ?? 0
                /// 数量
                tradeParam.orderQty = Double(cell.qtyField.currentIntNumbers)
                group.enter()
                tradeManager.tradeCommision(tradeParam: tradeParam) { (isSuccess, error, orderNo) in
                    group.leave()
                }
            }
        }
        
        group.notify(queue: DispatchQueue.main) {
            /// dismisss loding.....
            NVActivityIndicatorPresenter.sharedInstance.stopAnimating(NVActivityIndicatorView.DEFAULT_FADE_OUT_ANIMATION)
            WHToast.showSuccess(withMessage: "委托已提交，请前往我的单据页面查看！", duration: 1.5, finishHandler: {
                self.navigationController?.popViewController(animated: true)
            })
        }
    }
    
    /// 查询商品对应委托单的数据信息
    /// - Parameter price: 价格
    fileprivate func requestQueryHsbyGoodsOrderDetails(_ price: String?) {
        /// 异常
        guard let orderManager = MTP2BusinessCore.shared.orderManager,
              let obj = takeInfo as? MoGoodsInfo else { return }
        
        /// startAnimating
        self._anim?.startAnimating()
        /// 发送请求
        orderManager.requestQueryHsbyGoodsOrderDetails(obj.goodsid, price) { (isComplete, error, orderDetails) in
            DispatchQueue.main.async {
                /// stopAnimating
                self._anim?.stopAnimating()
                if isComplete {
                    /// 更新数据
                    self.orderDetails = orderDetails ?? []
                } else {
                    self.orderDetails = []
                    WHToast.showError(withMessage: "数据更新失败，原因:\(error?.retMsg ?? "未知错误")", duration: 1.5, finishHandler: {})
                }
            }
        }
    }
    
    /// 合规性校验
    /// - Returns: Bool
    fileprivate func check() -> Bool {
        
        /// 请输入委托价格
        guard priceField.currentDoubleNumbers != 0.0 else {
            WHToast.showError(withMessage: "请输入委托价格", duration: 1.5, finishHandler: {})
            return false
        }
        
        /// 委托价格不在范围内
        let detail = takeInfo as? MoGoodsInfo
        if priceField.currentDoubleNumbers < (detail?.limitdown ?? 0.0) || (priceField.currentDoubleNumbers > detail?.limitup ?? 0.0) {
            WHToast.showError(withMessage: "\(detail?.limitdown ?? 0.0)<=委托价格<=\(detail?.limitup ?? 0.0)", duration: 1.5, finishHandler: {})
            return false
        }
        
        /// 请输入交易数量
        if qtyField.currentIntNumbers == 0 {
            WHToast.showError(withMessage: "请输入交易数量", duration: 1.5, finishHandler: {})
            return false
        }
        
        /// 委托数量不能大于
        if qtyField.currentIntNumbers > qtyField.maxIntNum {
            WHToast.showError(withMessage: "交易数量应小于等于\(qtyField.maxIntNum)", duration: 1.5, finishHandler: {})
            return false
        }
        
        return true
    }
    
    // MARK: - 订阅行情相关
    var uuid: String = UUID().uuidString
    /// 行情订阅
    private func subscriptQuote() {
        var goodsCodes = Set<String>()
        if let goods = self.takeInfo as? MoGoodsInfo {
            goodsCodes.insert(goods.goodscode)
        }
        guard let quoteSubscriptManager = MTP2BusinessCore.shared.quoteSubscriptManager else { return }
        quoteSubscriptManager.updateQuoteSubcriptGoods(uuid: uuid, goodsCode:  goodsCodes)
    }
    
    // MARK: - 计算相关
    /// 计算相关
    fileprivate func calculate() {
        /// 异常
        guard let obj = takeInfo as? MoGoodsInfo,
              let accountManager = MTP2BusinessCore.shared.accountManager,
              let taAccountInfo = accountManager.getCurrentTAAccountInfo() else {
            return
        }
        
        let amount = (priceField.currentDoubleNumbers*Double(qtyField.currentIntNumbers)*obj.agreeUnit).toDownString(reserve: obj.decimalplace)
        /// 期末余额
        let blance = taAccountInfo.currentBalance-(taAccountInfo.freezeMargin+taAccountInfo.otherFreezeMargin+taAccountInfo.freezeCharge)
        amountTips.text = "购买金额：\(amount)  可用金额：\(blance.toDownString(reserve: 2))"
    }
}

extension TradeViewController: UITableViewDelegate, UITableViewDataSource {
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return orderDetails.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: CellIdentifier, for: indexPath) as! TradeCell
        cell.model = orderDetails[indexPath.row]
        cell.isCheck = false
        cell.block = { (_ model: MoHsbyGoodsOrderDetail?, _ isCheck: Bool, _ qty: Int) in
            var qty: Int = 0
            self.tableView.visibleCells.forEach { (cell) in
                if (cell as! TradeCell).isCheck {
                    qty += (cell as! TradeCell).qtyField.currentIntNumbers
                }
            }
            self.orderQty = qty
            /// 输入框是否可用
            self.qtyField.isUserInteractionEnabled = !self.tableView.visibleCells.contains(where: { (cell) -> Bool in
                return ((cell as? TradeCell)?.isCheck ?? false)
            })
        }
        /// 最小交易数量
        if let obj = takeInfo as? MoGoodsInfo {
            cell.qtyField.incrementIntNum = obj.lotsize
            cell.qtyField.minIntNum = obj.lotsize
        }
        return cell
    }
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 50.0
    }
}

extension TradeViewController: IBNumberEditTextDelegate {
    
    func numberInputViewDidEndEditing(_ numberInputView: IBNumberEditText) {
        if numberInputView == priceField {
            let orderPrice = numberInputView.currentDoubleNumbers
            /// 更新单据
            self.requestQueryHsbyGoodsOrderDetails(orderPrice.toString(reserve: 2))
        } else {
            calculate()
        }
    }
    
    func numberInputView(_ numberInputView: IBNumberEditText, _ buttonType: NumberInputViewButtonType) {
        if numberInputView == priceField {
            let orderPrice = numberInputView.currentDoubleNumbers
            /// 更新单据
            self.requestQueryHsbyGoodsOrderDetails(orderPrice.toString(reserve: 2))
        }
        calculate()
    }
    
    func IBNumberEditText(textField: UITextField) {}
}

class TradeCell: BaseTableViewCell<MoHsbyGoodsOrderDetail> {
    
    // MARK: - 属性列表
    /// bgView
    @IBOutlet weak var bgView: UIView!
    /// checkBox
    @IBOutlet weak var checkBox: UIButton!
    /// accountName
    @IBOutlet weak var accountName: UILabel!
    /// price
    @IBOutlet weak var price: UILabel!
    /// qty
    @IBOutlet weak var qty: UILabel!
    /// checkBox
    @IBOutlet weak var qtyField: IBNumberEditText! {
        didSet {
            qtyField.valueType = 1
            qtyField.delegate = self
        }
    }
    
    /// 数据模型
    override var model: MoHsbyGoodsOrderDetail? {
        didSet {
            /// 异常
            guard let obj = model else { return }
            /// 数量范围
            qtyField.maxIntNum = obj.enableqty
            if let vc = self.superController() as? MyUnusedViewController { /// 我的闲置
                qtyField.minIntNum = vc.myGoods?.lotsize ?? 1
                qtyField.incrementIntNum = vc.myGoods?.lotsize ?? 1
                qtyField.currentIntNumbers = obj.enableqty
            } else {
                let lotSize = ((self.superController() as? TradeViewController)?.takeInfo as? MoGoodsInfo)?.lotsize ?? 1
                qtyField.minIntNum = lotSize
                qtyField.incrementIntNum = lotSize
                qtyField.currentIntNumbers = lotSize
            }
            
            /// 客户名称
            accountName.text = obj.customername
            /// 委托价格
            price.text = "\(obj.currencysign)\(obj.orderprice)"
            /// 委托数量
            qty.text = "\(obj.enableqty)\(obj.goodunit)"
        }
    }
    /// 是否勾选
    var isCheck: Bool = false {
        didSet {
            /// 异常
            guard let obj = model else { return }
            /// setImage
            checkBox.setImage(UIImage(named: isCheck ? "check_selected" : "check_normal"), for: .normal)
            /// 执行回调
            if let callBack = block { callBack(obj, isCheck, qtyField.currentIntNumbers) }
            /// 设置交互色
            bgView.backgroundColor = UIColorFromHex(rgbValue: isCheck ? 0xecf3fd : 0xf7f7f7)
            /// 是否可用
            qtyField.isUserInteractionEnabled = isCheck
        }
    }
    
    /// 回调块
    var block: ((_ model: MoHsbyGoodsOrderDetail?, _ isCheck: Bool, _ qty: Int) -> Void)?
    
    /// onButtonPressed
    /// - Parameter sender: sender
    @IBAction func onButtonPressed(_ sender: UIButton) {
        switch sender {
        case checkBox:
            isCheck = !isCheck
        default:
            return
        }
    }
}

extension TradeCell: IBNumberEditTextDelegate {
    /// 不做任何处理
    func IBNumberEditText(textField: UITextField) {}
    
    func numberInputView(_ numberInputView: IBNumberEditText, _ buttonType: NumberInputViewButtonType) {
        isCheck = true
    }
    
    func numberInputViewDidEndEditing(_ numberInputView: IBNumberEditText) {
        isCheck = true
    }
}