using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using FWindSoft.Data;
using FWindSoft.SystemExtensions;

namespace FWindSoft.Wpf.History
{
    /// <summary>
    /// 元素值抽象类
    /// </summary>
    public abstract class ElementValueProvider:IValueProvider
    {   /*
        为统一接口，不把相关control 参数放在 GetValue和SetValue方法中     
        */
        public ElementValueProvider()
        {
            RefControlType=GetControlType();
        }
        public void SetAdapterControl(FrameworkElement element)
        {
            RefControl = element;
        }
        public Type RefControlType { get; private set; }
        /// <summary>
        /// 关联控件
        /// </summary>
        public FrameworkElement RefControl { get; private set; }

        /// <summary>
        /// 获取控件值
        /// </summary>
        /// <returns></returns>
        public abstract object GetValue();
        /// <summary>
        /// 设置控件值
        /// </summary>
        /// <param name="value"></param>
        public abstract void SetValue(object value);

        /// <summary>
        /// 设置控件关联值
        /// </summary>
        protected abstract Type GetControlType();
        /// <summary>
        /// 判断是否是适配类型
        /// </summary>
        /// <param name="type"></param>
        /// <returns></returns>
        public bool IsAdapterType(Type type)
        {
            return RefControlType == type;
        }

        public ElementValueProvider Clone()
        {
            return this.MemberwiseClone() as ElementValueProvider;
        }
    }
    /// <summary>
    /// 文本框适配
    /// </summary>
    public class TextBoxValueProvider : ElementValueProvider
    {
        public override object GetValue()
        {
            TextBox textBox = RefControl as TextBox;
            string str = string.Empty;
            if (textBox != null)
            {
                str = textBox.Text;
            }
            return str;
        }

        public override void SetValue(object value)
        {
            TextBox textBox = RefControl as TextBox;
            object str = value??string.Empty;
            if (textBox != null)
            {
                textBox.Text= str.ToString();
            }
        }

        protected override Type GetControlType()
        {
           return typeof(TextBox);
        }
    }

    /// <summary>
    /// 下拉框适配
    /// </summary>
    public class ComBoxValueProvider : ElementValueProvider
    {
        public override object GetValue()
        {
            ComboBox cmb = RefControl as ComboBox;
            string str = string.Empty;
            if (cmb != null)
            {
                str = cmb.Text;
            }
            return str;
        }

        public override void SetValue(object value)
        {
            ComboBox cmb = RefControl as ComboBox;
            object str = value ?? string.Empty;
            if (cmb != null)
            {
                cmb.Text = str.ToString();
                if (cmb.SelectedIndex == -1 && cmb.Items.Count > 0 && !cmb.IsEditable)
                {
                    cmb.SelectedIndex = 0;
                }
            }
        }

        protected override Type GetControlType()
        {
            return typeof(ComboBox);
        }
    }

    /// <summary>
    /// 单选框适配
    /// </summary>
    public class RadioValueProvider : ElementValueProvider
    {
        public override object GetValue()
        {
            RadioButton radioButton = RefControl as RadioButton;
            string str = string.Empty;
            if (radioButton != null)
            {
                str = radioButton.IsChecked.ToString();
            }
            return str;
        }

        public override void SetValue(object value)
        {
            RadioButton radioButton = RefControl as RadioButton;
            object str = value ?? string.Empty;
            if (radioButton != null)
            {
                bool isCheck =str.ToString().ToBoolean();
                if (isCheck) //如果是false则不给相应radio赋值，避免不必要的界面交互造成的bug
                    radioButton.IsChecked = isCheck;
            }
        }

        protected override Type GetControlType()
        {
            return typeof(RadioButton);
        }
    }

    /// <summary>
    /// 多选框适配
    /// </summary>
    public class CheckBoxValueProvider : ElementValueProvider
    {
        public override object GetValue()
        {
            CheckBox checkBox = RefControl as CheckBox;
            string str = string.Empty;
            if (checkBox != null)
            {
                str = checkBox.IsChecked.ToString();
            }
            return str;
        }

        public override void SetValue(object value)
        {
            CheckBox checkBox = RefControl as CheckBox;
            object str = value ?? string.Empty;
            if (checkBox != null)
            {
                checkBox.IsChecked = str.ToString().ToBoolean();
            }
        }

        protected override Type GetControlType()
        {
            return typeof(CheckBox);
        }
    }

    /// <summary>
    /// 列表框框适配
    /// </summary>
    public class ListBoxValueProvider : ElementValueProvider
    {
        public override object GetValue()
        {
            ListBox listBox = RefControl as ListBox;
            string str ="0";
            if (listBox != null)
            {
                str = listBox.SelectedIndex.ToString();
            }
            return str;
        }

        public override void SetValue(object value)
        {
            ListBox listBox = RefControl as ListBox;
            object str = value ?? string.Empty;
            if (listBox != null)
            {
                int index = 0;
                if (int.TryParse(str.ToString(), out index))
                {
                    if (listBox.Items.Count > index)
                    {
                        listBox.SelectedIndex = index;
                    }
                }
            }
        }

        protected override Type GetControlType()
        {
            return typeof(ListBox);
        }
    }

    /// <summary>
    /// 文本框适配
    /// </summary>
    public class TextBlockValueProvider : ElementValueProvider
    {
    public override object GetValue()
    {
        TextBlock textBox = RefControl as TextBlock;
        string str = string.Empty;
        if (textBox != null)
        {
            str = textBox.Text;
        }
        return str;
    }

    public override void SetValue(object value)
    {
        TextBlock textBox = RefControl as TextBlock;
        object str = value ?? string.Empty;
        if (textBox != null)
        {
            textBox.Text = str.ToString();
        }
    }

    protected override Type GetControlType()
    {
        return typeof(TextBlock);
    }
    }


    /// <summary>
    /// 文本框适配
    /// </summary>
    public class WindowValueProvider : ElementValueProvider
    {
        public override object GetValue()
        {
            Window window = RefControl as Window;
            string str = string.Empty;
            if (window != null)
            {
                List<string> valueList = new List<string>();
                valueList.Add(window.Top.ToString());
                valueList.Add(window.Left.ToString());
                valueList.Add(window.Width.ToString());
                valueList.Add(window.Height.ToString());
                str = string.Join(",", valueList);
            }
            return str;
        }

        public override void SetValue(object value)
        {
            Window window = RefControl as Window;
            string str = value?.ToString()?? string.Empty;
            if (string.IsNullOrEmpty(str)|| window != null)
            {
                List<string> valueList = str.Split(',').ToList();
                try
                {
                    if (valueList.Count > 3)
                    {
                        window.Top = valueList[0].ToDouble();
                        window.Left = valueList[1].ToDouble();
                        window.Width = valueList[2].ToDouble();
                        window.Height = valueList[3].ToDouble();
                    }
                }
                catch (Exception)
                {
                    System.Diagnostics.Debug.WriteLine("窗口赋值出错");
                }
              
            }
        }

        protected override Type GetControlType()
        {
            return typeof(Window);
        }
    }
}