using SciChart.Core.Extensions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace MECF.Framework.UI.Core.Control
{
    /// <summary>
    /// PMCounterValueTextBox.xaml 的交互逻辑
    /// </summary>
    public partial class PMCounterValueTextBox : UserControl
    {
        public PMCounterValueTextBox()
        {
            InitializeComponent();
 
        }
        public static readonly DependencyProperty KeyOperationProperty = DependencyProperty.Register("KeyOperation", typeof(ICommand), typeof(PMCounterValueTextBox));
        public ICommand KeyOperation
        {
            get
            {
                return (ICommand)this.GetValue(KeyOperationProperty);
            }
            set
            {
                this.SetValue(KeyOperationProperty, value);
            }
        }
        public static readonly DependencyProperty PMCounterNodeNameProperty = DependencyProperty.Register(
            "PMCounterNodeName", typeof(string), typeof(PMCounterValueTextBox), new FrameworkPropertyMetadata("", FrameworkPropertyMetadataOptions.AffectsRender));
        /// <summary>
        /// PMCounter名称
        /// </summary>
        public string PMCounterNodeName
        {
            get
            {
                return (string)this.GetValue(PMCounterNodeNameProperty);
            }
            set
            {
                this.SetValue(PMCounterNodeNameProperty, value);
            }
        }
        public static readonly DependencyProperty CounterNodeNameProperty = DependencyProperty.Register(
            "CounterNodeName", typeof(string), typeof(PMCounterValueTextBox), new FrameworkPropertyMetadata("", FrameworkPropertyMetadataOptions.AffectsRender));
        /// <summary>
        /// PMcounter项目名称
        /// </summary>
        public string CounterNodeName
        {
            get
            {
                return (string)this.GetValue(CounterNodeNameProperty);
            }
            set
            {
                this.SetValue(CounterNodeNameProperty, value);
            }
        }
        public static readonly DependencyProperty CounterNodeItemIndexProperty = DependencyProperty.Register(
                "CounterNodeItemIndex", typeof(string), typeof(PMCounterValueTextBox), new FrameworkPropertyMetadata("", FrameworkPropertyMetadataOptions.AffectsRender));
        /// <summary>
        /// PMcounterItem Index
        /// </summary>
        public string CounterNodeItemIndex
        {
            get
            {
                return (string)this.GetValue(CounterNodeItemIndexProperty);
            }
            set
            {
                this.SetValue(CounterNodeItemIndexProperty, value);
            }
        }
        public static readonly DependencyProperty IsHeaderProperty = DependencyProperty.Register(
        "IsHeader", typeof(bool), typeof(PMCounterValueTextBox), new FrameworkPropertyMetadata(false, FrameworkPropertyMetadataOptions.AffectsRender));
        /// <summary>
        /// IsHeader
        /// </summary>
        public bool IsHeader
        {
            get
            {
                return (bool)this.GetValue(IsHeaderProperty);
            }
            set
            {
                this.SetValue(IsHeaderProperty, value);
            }
        }
        public static readonly DependencyProperty ValueProperty = DependencyProperty.Register(
            "Value", typeof(string), typeof(PMCounterValueTextBox), new FrameworkPropertyMetadata("", FrameworkPropertyMetadataOptions.AffectsRender));
        /// <summary>
        /// 数值
        /// </summary>
        public string Value
        {
            get
            {
                return (string)this.GetValue(ValueProperty);
            }
            set
            {
                this.SetValue(ValueProperty, value);
            }
        }
        private void TextBox_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter)
            {
                if (KeyOperation != null)
                {
                    if (txtInput.Text.Trim().IsNullOrEmpty())
                    {
                        txtInput.Text = "0";
                    }
                    if (txtInput.Text.Trim().Last() == '.')
                    {
                        txtInput.Text = txtInput.Text.Trim().Substring(0, txtInput.Text.Trim().Length - 1);
                    }
                    Value = txtInput.Text;
                    KeyOperation.Execute(new object[] { PMCounterNodeName, CounterNodeName, txtInput.Text });
                }
            }
        }

        private void OnPreviewTextInput(object sender, TextCompositionEventArgs e)
        {
            var textBox = (TextBox)sender;
            e.Handled = !IsTextAllowed(textBox.Text, e.Text[0]);
        }

        private bool IsTextAllowed(string input, char? newChar = null)
        {
            //regex that matches disallowed text
            //Regex regex = new Regex("[^0-9.]+"); 
            //return !regex.IsMatch(key);
            // 检查是否包含空格
            if ((newChar.HasValue && char.IsWhiteSpace(newChar.Value)) ||
                (!string.IsNullOrEmpty(input) && input.Any(char.IsWhiteSpace)))
            {
                return false;
            }

            // 允许空字符串（用于删除操作）
            if (string.IsNullOrEmpty(input) && newChar == null)
                return true;

            // 组合完整字符串
            string fullText = newChar.HasValue ? input + newChar : input;

            // 正则表达式验证（允许数字和单个小数点，禁止空格）
            return Regex.IsMatch(fullText, @"^-?\d*\.?\d*$") &&
                   fullText.Count(c => c == '.') <= 1;
        }




        private void TextBox_LostFocus(object sender, RoutedEventArgs e)
        {
            TextBox textBox = sender as TextBox;

            if (textBox != null && string.IsNullOrEmpty(textBox.Text))
            {
                textBox.Text = Value;
            }
            if (Value != textBox.Text)
            {
                textBox.Text = Value;
            }

        }
    }
}