using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using POSV.Component;
using POSV.ShoppingCart;
using POSV.Utils;
using POSV.Entity;
using POS.Language.Language;

namespace POSV.Business
{
    public partial class QuantityPanelEx : AbstractFlyoutPanelEx
    {
        /// <summary>
        /// 当前选择的记录，单品议价依赖
        /// </summary>
        private OrderItem _orderItem = null;
        
        /// <summary>
        /// 权限控制码
        /// </summary>
        private string _permissionCode = string.Empty;

        /// <summary>
        /// 授权人权限信息
        /// </summary>
        private Tuple<decimal, decimal, List<string>, Worker> _authz = null;

        /// <summary>
        /// 授权界面或者录入界面切换
        /// </summary>
        private AuthOperator _auth = AuthOperator.None;


        public QuantityPanelEx(OrderItem item , string permissionCode, AuthOperator auth = AuthOperator.输入操作, Tuple<decimal, decimal, List<string>, Worker> authz = null)
        {
            InitializeComponent();

            this._orderItem = item;

            this.tabControl.TabsVisible = false;

            this.Height = this.Height - 30;

            //操作功能的权限码
            this._permissionCode = permissionCode;

            //授权人综合信息
            this._authz = authz;

            //外部传入的操作
            this._auth = auth;
            //定义授权界面的操作事件
            this.authPanel.ButtonClick += OnAuthzButtonClick;
            //默认校验权限控制码
            this.authPanel.ExpectValidate(this._permissionCode);
        }

        /// <summary>
        /// 授权事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void OnAuthzButtonClick(object sender, AuthEventArgs e)
        {
            switch (e.Action)
            {
                case AuthAction.Close:
                    {
                        this.OnCancelButtonClick(new FlyoutEventArgs(FlyoutAction.Cancel, e.KeyCode, null));
                    }
                    break;
                case AuthAction.Cancel:
                    {
                        this.tabControl.SelectedTab = null;
                        this.tabControl.SelectedTab = this.tabInput;
                    }
                    break;
                case AuthAction.Accept:
                    {
                        if (e.Data is Tuple<decimal, decimal, List<string>, Worker>)
                        {
                            this._authz = e.Data as Tuple<decimal, decimal, List<string>, Worker>;

                            var logInfo = string.Format(LangProxy.ToLang("操作由[{0},{1}]授权"), this._authz.Item4.No, this._authz.Item4.Name);

                            LogUtils.WriteLog(LogAction.授权操作, logInfo, this._authz.Item4.No, this._orderItem.TradeNo);
                            
                            this.tabControl.SelectedTab = null;
                            this.tabControl.SelectedTab = this.tabInput;

                            this.ShowMessage(this.lblInfo, logInfo);

                        }
                    }
                    break;
            }
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            this.SetStyle(ControlStyles.Selectable , true);

            if (this.DesignMode) return;

            //允许输入小数数量
            bool allowInputDigit = Global.Instance.GlobalConfigBoolValue(ConfigConstant.CASHIER_NOT_ALLOW_INPUT_DIGIT , true);
            this.touchButtonX11.Lock = !allowInputDigit;
            this.touchButtonX11.LockSize = new Size(26 , 26);
            this.txtQuantity.AllowDecimalSeparator = allowInputDigit;

            //设置小数位数
            if (allowInputDigit)
            {
                this.txtQuantity.MaxDecimalDigit = Global.Instance.GlobalConfigIntValue(ConfigConstant.CASHIER_QUANTITY_DIGIT , 2);
            }

            this.ShowMessage(this.lblInfo , string.Format(this.lblInfo.Tag.ToString() , this._orderItem.Name));

            this.txtQuantity.Text = this._orderItem.Quantity.ToString();

            this.ActiveControl = this.txtQuantity;

            this.txtQuantity.Multiline = false;
            this.txtQuantity.Focus();
            this.txtQuantity.SelectAll();

            this.tabControl.SelectedTab = null;
            switch (this._auth)
            {
                case AuthOperator.输入操作:
                    {
                        this.tabControl.SelectedTab = this.tabInput;
                    }
                    break;
                case AuthOperator.授权操作:
                    {
                        this.tabControl.SelectedTab = this.tabAuthc;
                    }
                    break;
            }

           

        }

        private void OnTouchClick(object sender , Component.TouchEventArgs e)
        {
            switch (e.Value)
            {
                case "clear":
                    {
                        this.txtQuantity.Text = string.Empty;
                        this.txtQuantity.Focus();
                    }
                    break;
                case "accept":

                    if (this.txtQuantity.DecimalValue > 0)
                    {
                        bool isGo = true;

                        //添加沽清业务规则
                        SaleClear saleClear = null;
                        if (SaleClearUtils.Instance.Maps.ContainsKey(this._orderItem.ProductId))
                        {
                            saleClear = SaleClearUtils.Instance.Maps[this._orderItem.ProductId];
                        }
                        //是否参与沽清
                        bool isSaleClear = SaleClearUtils.Instance.CheckSaleClear(saleClear);

                        //参与沽清，已经售完
                        if (isSaleClear)
                        {
                            //沽清剩余数量没有了
                            if (saleClear.Quantity <= 0)
                            {
                                isGo = false;

                                this.ShowMessage(this.lblInfo , LangProxy.ToLang("沽清售完了") , true);
                            }

                            if (isGo)
                            {
                                if(saleClear.Quantity <= this.txtQuantity.DecimalValue)
                                {
                                    isGo = false;

                                    this.ShowMessage(this.lblInfo , LangProxy.ToLang("沽清剩余数量不足") , true);
                                }
                            }                            
                        }

                        if (isGo)
                        {
                            if (isSaleClear)
                            {
                                saleClear.SaleQuantity += (this.txtQuantity.DecimalValue - this._orderItem.Quantity);

                                SaleClearUtils.Instance.Maps[this._orderItem.ProductId] = saleClear;
                            }


                            this._orderItem.Quantity = this.txtQuantity.DecimalValue;

                            this.OnAcceptButtonClick(new FlyoutEventArgs(FlyoutAction.Accept , e.Value , this._orderItem));
                        }
                                                
                    }
                    else
                    {
                        this.ShowMessage(this.lblInfo , LangProxy.ToLang("不允许销售数量为零") , true);
                    }

                    break;
                default:
                    InputSimulatorUtils.SendKey(KeyCodes.Map[e.Value]);
                    break;
            }
        }

        /// <summary>
        /// 输入框值更改事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void OnInputValueChanged(object sender , EnterEventArg e)
        {
            if (this.txtQuantity.DecimalValue > 0)
            {
                this.ShowMessage(this.lblInfo,string.Format(this.lblInfo.Tag.ToString() , this._orderItem.Name) , false);
            }
        }

        /// <summary>
        /// 输入框的回车事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void OnQuantityEnterClick(object sender , EnterEventArg e)
        {
            this.OnTouchClick(this.touchButtonX4 , new TouchEventArgs(this.touchButtonX4.KeyCode));
        }

        private void OnTabChanged(object sender, DevComponents.DotNetBar.SuperTabStripSelectedTabChangedEventArgs e)
        {
            var tab = this.tabControl.SelectedTab;

            var opt = AuthOperator.None;

            Enum.TryParse(tab.Tag.ToString(), out opt);

            switch (opt)
            {
                case AuthOperator.授权操作:
                    {
                        this.ActiveControl = this.authPanel;

                        //设置焦点
                        this.authPanel.SetFocus();
                    }
                    break;
                case AuthOperator.输入操作:
                    {
                        this.ActiveControl = this.txtQuantity;

                        this.txtQuantity.Multiline = false;
                        this.txtQuantity.Focus();
                        this.txtQuantity.SelectAll();
                    }
                    break;
            }
        }

        private void OnTabChanging(object sender, DevComponents.DotNetBar.SuperTabStripSelectedTabChangingEventArgs e)
        {
            //是否开启授权
            e.Cancel = !Global.Instance.GlobalConfigBoolValue(ConfigConstant.CASHIER_AUTO_LOCK_DISABLE, false);
        }
    }
}