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

namespace POSV
{
    public partial class LockForm : BusinessForm
    {
        private const int TIMER_INTERVAL = 1000;

        /// <summary>
        /// 强制保留焦点的计时器
        /// </summary>
        private System.Timers.Timer _timer = null;

        private bool _isStart = false;

        public LockForm()
        {
            InitializeComponent();

            this.DialogResult = DialogResult.None;

            stylishAnalogClock1.ClockTime = DateTime.Now;

            _timer = new System.Timers.Timer(TIMER_INTERVAL);
            this._timer.Interval = TIMER_INTERVAL;
            this._timer.Elapsed += OnTimerElapsed;

            TimerStart();
        }

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

            //工作区自动居中
            this.mainPanel.Location = new Point((this.Width - this.mainPanel.Width) / 2 , (this.Height - this.mainPanel.Height) / 2);

            this.txtPasswd.GotFocus += OnInputGotFocus;

            this.txtPasswd.Multiline = false;
            this.txtPasswd.Focus();

            this.lblInfo.Text = string.Format(this.lblInfo.Tag.ToString() , Global.Instance.Worker.No);

        }

        private bool ValidateInputValue()
        {
            if (string.IsNullOrEmpty(txtPasswd.Text.Trim()))
            {
                this.ShowMessage(this.lblInfo , "密码不能为空..." , false);
                this.txtPasswd.Focus();
                return false;
            }
            return true;
        }
        

        private void OnTouchClick(object sender , TouchEventArgs e)
        {
            switch (e.Value)
            {
                case "clear":
                    //如果当前焦点控件是输入框
                    if (this.ActiveControl is NumericTextBox)
                    {
                        var activeControl = this.ActiveControl as NumericTextBox;
                        activeControl.Text = string.Empty;
                    }
                    break;
                case "accept":
                    //验证通过
                    {
                        var valid = ValidateInputValue();
                        if (valid)
                        {
                            this.Verify();
                        }
                    }
                    break;
                default:
                    {
                        InputSimulatorUtils.SendKey(KeyCodes.Map[e.Value]);
                    }
                    break;
            }
        }

        private void OnCloseTouchClick(object sender , EventArgs e)
        {
            //先关闭父窗体
            this.Owner?.Close();
            //再关闭当前窗体
            this.Close();
        }

        protected override void OnFormClosing(FormClosingEventArgs e)
        {
            base.OnFormClosing(e);

            e.Cancel = (this.DialogResult != DialogResult.OK);
        }


        private void OnInputValueChanged(object sender , Component.EnterEventArg e)
        {
            this.BeginInvoke(new MethodInvoker(() => {
                this.lblInfo.Text = String.Format(this.lblInfo.Tag.ToString() , Global.Instance.Worker.No);
            }));
        }


        public void TimerStart()
        {
            if (!_isStart)
            {
                this._timer.Start();
            }

        }

        public void TimerStop()
        {
            this._timer.Stop();

            _isStart = false;
        }

        private void OnTimerElapsed(object sender , System.Timers.ElapsedEventArgs e)
        {
            if (this.InvokeRequired)
            {
                this.BeginInvoke(new MethodInvoker(() =>
                {
                    stylishAnalogClock1.ClockTime = DateTime.Now;
                }));
            }
            else
            {
                stylishAnalogClock1.ClockTime = DateTime.Now;
            }
        }

        private void Verify()
        {
            if (Global.Instance.Worker != null)
            {
                if (BCrypt.Verify(txtPasswd.Text.Trim(), Global.Instance.Worker.Passwd))
                {
                    this.DialogResult = DialogResult.OK;
                }
                else
                {
                    this.BeginInvoke(new MethodInvoker(() => {
                        this.lblInfo.Text = " 密码错误，请重新输入";
                    }));
                    this.txtPasswd.Focus();
                    this.txtPasswd.SelectAll();

                    this.DialogResult = DialogResult.Cancel;
                }
            }
            else
            {
                this.BeginInvoke(new MethodInvoker(() => {
                    this.lblInfo.Text = "咦！操作员去月球了....";
                }));
                this.txtPasswd.Focus();
                this.txtPasswd.SelectAll();

                this.DialogResult = DialogResult.Cancel;
            }
        }


        private void OnInputEnterClick(object sender, EnterEventArg e)
        {
            var valid = ValidateInputValue();
            if (valid)
            {
                this.Verify();
            }
        }
    }
}