using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Web.Mvc;
using System.Web.UI.WebControls;

namespace Core.Web.WebHelper
{
    public static class ExtendMvcHtml
    {
        /// <summary>
        /// 普通按钮
        /// </summary>
        /// <param name="helper">htmlhelper</param>
        /// <param name="id">控件Id</param>
        /// <param name="icon">控件icon图标class</param>
        /// <param name="text">控件的名称</param>
        /// <param name="hr">分割线</param>
        /// <returns>html</returns>
        public static MvcHtmlString ToolButton(this HtmlHelper helper, string id, string icon, string text, bool hr)
        {

            StringBuilder sb = new StringBuilder();
            sb.AppendFormat("<a id=\"{0}\" style=\"float: left;\" class=\"l-btn l-btn-plain\">", id);
            sb.AppendLine("");
            sb.AppendFormat("<span class=\"l-btn-left\"><span class=\"l-btn-text {0}\" style=\"padding-left: 20px;\">", icon);
            sb.AppendLine("");
            sb.AppendFormat("{0}</span></span></a>", text);
            sb.AppendLine("");
            if (hr)
            {
                sb.Append("<div class=\"datagrid-btn-separator\"></div>");
                sb.AppendLine("");
            }
            return new MvcHtmlString(sb.ToString());

        }
        /// <summary>
        /// 普通按钮
        /// </summary>
        /// <param name="helper">htmlhelper</param>
        /// <param name="id">控件Id</param>
        /// <param name="icon">控件icon图标class</param>
        /// <param name="text">控件的名称</param>
        /// <param name="click">click事件名称</param>
        /// <param name="hr">分割线</param>
        /// <returns>html</returns>
        public static MvcHtmlString ToolButton(this HtmlHelper helper, string id, string icon, string text, string click, bool hr)
        {

            StringBuilder sb = new StringBuilder();
            if (!string.IsNullOrEmpty(click))
                sb.AppendFormat("<a id=\"{0}\" style=\"float: left;\" class=\"l-btn l-btn-plain\" onclick='{1}()'>", id, click);
            else
                sb.AppendFormat("<a id=\"{0}\" style=\"float: left;\" class=\"l-btn l-btn-plain\" >", id);
            sb.AppendLine("");
            sb.AppendFormat("<span class=\"l-btn-left\"><span class=\"l-btn-text {0}\" style=\"padding-left: 20px;\">", icon);
            sb.AppendLine("");
            sb.AppendFormat("{0}</span></span></a>", text);
            sb.AppendLine("");
            if (hr)
            {
                sb.Append("<div class=\"datagrid-btn-separator\"></div>");
                sb.AppendLine("");
            }
            return new MvcHtmlString(sb.ToString());

        }
        /// <summary>
        /// 不浮动
        /// </summary>
        /// <param name="helper"></param>
        /// <param name="id"></param>
        /// <param name="icon"></param>
        /// <param name="text"></param>
        /// <param name="hr"></param>
        /// <param name="attribute"></param>
        /// <returns></returns>
        public static MvcHtmlString ToolButtonPlain(this HtmlHelper helper, string id, string icon, string text, bool hr, string attribute)
        {

            StringBuilder sb = new StringBuilder();
            sb.AppendFormat("<a id=\"{0}\" " + attribute + " class=\"l-btn l-btn-plain\">", id);
            sb.AppendLine("");
            sb.AppendFormat("<span class=\"l-btn-left\"><span class=\"l-btn-text {0}\" {1} >", icon, icon == "" ? "" : " style=\"padding-left: 20px;\"");
            sb.AppendLine("");
            sb.AppendFormat("{0}</span></span></a>", text);
            sb.AppendLine("");
            if (hr)
            {
                sb.Append("<span class=\"tool-btn-separator\"></span>");
                sb.AppendLine("");
            }
            return new MvcHtmlString(sb.ToString());
        }
        /// <summary>
        /// 分割按钮
        /// </summary>
        /// <returns></returns>
        public static MvcHtmlString SplitButton(this HtmlHelper helper, string id, string icon, string text, ChildButton[] buttonList, bool hr)
        {
            Random rd = new Random();
            string childId = id + rd.Next(100, 1000);
            StringBuilder sb = new StringBuilder();
            sb.AppendFormat("<a style=\"float: left;\" href='javascript:void(0)' id=\"{0}\" class=\"easyui-splitbutton\"   data-options=\"menu:'#{3}',iconCls:'{1}'\" >{2}</a>", id, icon, text, childId);
            sb.AppendLine("");
            sb.AppendFormat("<div id=\"{0}\" style=\"width:auto;\">   ", childId);
            sb.AppendLine("");
            foreach (ChildButton button in buttonList)
            {
                sb.AppendFormat("<div id=\"{2}\" onclick='{3}()' data-options=\"iconCls:'{0}'\">{1}</div> ", button.icon, button.text, button.id, button.click);
                sb.AppendLine("");
            }
            sb.AppendLine("</div>");
            sb.AppendLine("");
            if (hr)
            {
                sb.Append("<div class=\"datagrid-btn-separator\"></div>");
                sb.AppendLine("");
            }
            return new MvcHtmlString(sb.ToString());


        }
        ///// <summary>
        ///// 获取未知ToolBar按钮
        ///// </summary>
        ///// <param name="helper"></param>
        ///// <param name="button"></param>
        ///// <returns></returns>
        //public static MvcHtmlString ToolBarOtherButton(this HtmlHelper helper, ToolBarButton button)
        //{

        //    if (button.child == null)
        //    {
        //        return ToolButton(helper, button.id, button.icon, button.text, button.click, button.hr);
        //    }
        //    else
        //    {
        //        ChildButton[] childs = new ChildButton[button.child.Count];
        //        for (int i = 0; i < button.child.Count; i++)
        //        {
        //            childs[i] = new ChildButton() { click = button.child[i].click, icon = button.child[i].icon, id = button.child[i].id, text = button.child[i].text };
        //        }
        //        return SplitButton(helper, button.id, button.icon, button.text, childs, true);
        //    }
        //}
        /// <summary>
        /// 
        /// </summary>
        /// <param name="helper"></param>
        /// <param name="name">名称和ID</param>
        /// <param name="selectValue">默认值</param>
        /// <param name="obj">数据源</param>
        /// <returns></returns>
        public static MvcHtmlString OptGroupSelect(this HtmlHelper helper, string name, string selectValue, ListOptGroup obj, string attribute = "", bool canChooseParent = false)
        {
            StringBuilder sb = new StringBuilder();
            sb.AppendLine(string.Format("<select id='{0}' name='{0}' {1}>", name, attribute));
            foreach (var item in obj.selectListItem)
            {
                if (item.Value == selectValue)
                    sb.AppendLine(string.Format("<option value='{0}' selected='selected'>{1}</option>", item.Value, item.Text));
                else
                    sb.AppendLine(string.Format("<option value='{0}'>{1}</option>", item.Value, item.Text));
            }
            foreach (OptGroup group in obj.groupList)
            {
                if (canChooseParent == false)
                {
                    sb.AppendLine("<optgroup label=\"" + group.lable + "\">");
                    foreach (var item in group.selectListItem)
                    {
                        if (item.Value == selectValue)
                            sb.AppendLine(string.Format("<option value='{0}' selected='selected'>{1}</option>", item.Value, item.Text));
                        else
                            sb.AppendLine(string.Format("<option value='{0}'>{1}</option>", item.Value, item.Text));
                    }
                    sb.AppendLine("</optgroup>");
                }
                else
                {
                    sb.AppendLine("<option style='font-weight: bold;' parentValue='" + group.labValue + "' value='" + group.labValue + "'>" + group.lable + "</option>");
                    foreach (var item in group.selectListItem)
                    {
                        if (item.Value == selectValue)
                            sb.AppendLine(string.Format("<option  value='{0}' selected='selected'>&nbsp;&nbsp;{1}</option>", item.Value, item.Text));
                        else
                            sb.AppendLine(string.Format("<option   value='{0}'>&nbsp;&nbsp;{1}</option>", item.Value, item.Text));
                    }

                }
            }
            sb.AppendLine("</select>");
            return new MvcHtmlString(sb.ToString());
        }
        /// <summary>
        /// 时间控件
        /// </summary>
        /// <param name="helper"></param>
        /// <param name="id"></param>
        /// <param name="text"></param>
        /// <returns></returns>
        public static MvcHtmlString WdatePickerText(this HtmlHelper helper, string id, string text, bool hasHour = false, string attribute = "")
        {
            StringBuilder sb = new StringBuilder();
            if (hasHour)
            {
                sb.Append("<input id='" + id + "' name='" + id + "' class='Wdate' type='text' " + attribute + " value='" + text + "' onclick='WdatePicker({dateFmt:&#39;yyyy-MM-dd HH:mm:ss&#39;})' />");
            }
            else
                sb.Append("<input id='" + id + "' name='" + id + "' class='Wdate' type='text' " + attribute + "  value='" + text + "' onclick='WdatePicker()' />");
            return new MvcHtmlString(sb.ToString());
        }

        /// <summary>
        ///  时间控件(限定范围)
        /// </summary>
        /// <param name="helper"></param>
        /// <param name="id"></param>
        /// <param name="text"></param>
        /// <param name="minDate"></param>
        /// <param name="maxDate"></param>
        /// <param name="hasHour"></param>
        /// <param name="attribute"></param>
        /// <returns></returns>
        public static MvcHtmlString WdatePickerText(this HtmlHelper helper, string id, string text, string minDate, string maxDate, bool hasHour = false, string attribute = "")
        {
            StringBuilder sb = new StringBuilder();
            string option = "";
            if (!string.IsNullOrEmpty(minDate))
            {
                option += ",minDate:" + minDate;
            }
            if (!string.IsNullOrEmpty(maxDate))
            {
                option += ",maxDate:" + maxDate;
            }
            if (hasHour)
            {
                sb.Append("<input id='" + id + "' name='" + id + "' class='Wdate' type='text' " + attribute + " value='" + text + "' onclick=\"WdatePicker({dateFmt:\"yyyy-MM-dd HH:mm:ss\"" + option + "})\" />");
            }
            else
            {
                if (option.Length > 0)
                    option = "{" + option.Substring(1, option.Length - 1) + "}";
                sb.Append("<input id='" + id + "' name='" + id + "' class='Wdate' type='text' " + attribute + "  value='" + text + "' onclick=\"WdatePicker(" + option + ")\" />");
            }
            return new MvcHtmlString(sb.ToString());
        }

        public static MvcHtmlString CheckBoxList(this HtmlHelper htmlHelper, string name, IEnumerable<SelectListItem> items, RepeatDirection repeatDirection = RepeatDirection.Horizontal, int RepeatColumns = 3, bool isRadio = false, string radioSelect = null)
        {

            StringBuilder str = new StringBuilder();
            string type = isRadio ? "Radio" : "checkbox";
            str.Append(@"<table>");
            int i = 0;
            if (repeatDirection == RepeatDirection.Horizontal)
            {
                int count_items = items.Count();
                if (RepeatColumns < 1) RepeatColumns = 3;
                int repeat_num = (int)Math.Ceiling(Convert.ToDouble(count_items / RepeatColumns));
                for (int j = 0; j <= repeat_num; j++)
                {
                    str.Append(@"<tr>");
                    foreach (var item in items.Skip(j * RepeatColumns).Take(RepeatColumns))
                    {

                        i++;
                        string id = string.Format("{0}_{1}", name, i);
                        str.AppendFormat("<td class='checktd'><input id=\"{0}\" type=\"{3}\" name=\"{1}\" value=\"{2}\"", id, name, item.Value, type);
                        if (!string.IsNullOrEmpty(radioSelect) && item.Value == radioSelect)
                        {
                            str.Append(" checked='checked'");
                        }
                        else if (item.Selected)
                        {
                            str.Append(" checked='checked'");
                        }
                        str.AppendFormat("/><lable for=\"{0}\">{1}</lable></td>", id, item.Text);
                    }
                    str.Append("</tr>");
                }
            }
            else
            {

                foreach (var item in items)
                {
                    i++;
                    string id = string.Format("{0}_{1}", name, i);
                    str.Append(@"<tr>");
                    str.AppendFormat("<td class='checktd'><input id=\"{0}\" type=\"{3}\" name=\"{1}\" value=\"{2}\"", id, name, item.Value, type);
                    if (!string.IsNullOrEmpty(radioSelect) && radioSelect == item.Value)
                    {
                        str.Append(" checked='checked'");
                    }
                    else if (item.Selected)
                    {
                        str.Append(" checked='checked'");
                    }
                    str.AppendFormat("/><lable for=\"{0}\">{1}</lable></td>", id, item.Text);
                    str.Append("</tr>");
                }

            }
            str.Append("</table>");
            return new MvcHtmlString(str.ToString());
        }

        #region 单选框和复选框的扩展
        /// <summary>
        /// 复选框,selValue为选中项
        /// </summary>
        /// <param name="htmlHelper"></param>
        /// <param name="name"></param>
        /// <param name="selectList"></param>
        /// <param name="selValue"></param>
        /// <returns></returns>
        public static MvcHtmlString CheckBoxList(this HtmlHelper htmlHelper, string name, IEnumerable<ListItem> selectList, IEnumerable<string> selValue)
        {
            return CheckBoxAndRadioFor<object, string>(name, selectList, false, selValue);
        }
        public static MvcHtmlString CheckBoxList(this HtmlHelper htmlHelper, string name, IEnumerable<ListItem> selectList, string selValue)
        {
            return CheckBoxList(htmlHelper, name, selectList, new List<string> { selValue });

        }
        /// <summary>
        /// 复选框
        /// </summary>
        /// <param name="htmlHelper"></param>
        /// <param name="name"></param>
        /// <param name="selectList"></param>
        /// <returns></returns>
        public static MvcHtmlString CheckBoxForList(this HtmlHelper htmlHelper, string name, IEnumerable<ListItem> selectList)
        {
            return CheckBoxList(htmlHelper, name, selectList, new List<string>());
        }
        /// <summary>
        /// 根据列表输出checkbox
        /// </summary>
        /// <typeparam name="TModel"></typeparam>
        /// <typeparam name="TProperty"></typeparam>
        /// <param name="htmlHelper"></param>
        /// <param name="expression"></param>
        /// <param name="selectList"></param>
        /// <returns></returns>
        public static MvcHtmlString CheckBoxListFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, IEnumerable<ListItem> selectList)
        {
            return CheckBoxListFor(htmlHelper, expression, selectList, null);
        }

        /// <summary>
        ///  根据列表输出checkbox,selValue为默认选中的项
        /// </summary>
        /// <typeparam name="TModel"></typeparam>
        /// <typeparam name="TProperty"></typeparam>
        /// <param name="htmlHelper"></param>
        /// <param name="expression"></param>
        /// <param name="selectList"></param>
        /// <param name="selValue"></param>
        /// <returns></returns>
        public static MvcHtmlString CheckBoxListFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, IEnumerable<ListItem> selectList, string selValue)
        {
            string name = ExpressionHelper.GetExpressionText(expression);
            return CheckBoxAndRadioFor<TModel, TProperty>(name, selectList, false, new List<string> { selValue });
        }
        /// <summary>
        /// 输出单选框和复选框
        /// </summary>
        /// <typeparam name="TModel"></typeparam>
        /// <typeparam name="TProperty"></typeparam>
        /// <param name="expression"></param>
        /// <param name="selectList"></param>
        /// <param name="isRadio"></param>
        /// <param name="selValue"></param>
        /// <returns></returns>
        static MvcHtmlString CheckBoxAndRadioFor<TModel, TProperty>(
            string name,
            IEnumerable<ListItem> selectList,
            bool isRadio,
            IEnumerable<string> selValue)
        {
            StringBuilder str = new StringBuilder();
            int c = 0;
            string check, activeClass = string.Empty;
            string type = isRadio ? "Radio" : "checkbox";

            foreach (var item in selectList)
            {
                c++;
                if (selValue != null && selValue.Contains(item.Value))
                {
                    check = "checked='checked'";
                    //activeClass = "style=color:red";
                }
                else
                {
                    check = string.Empty;
                    activeClass = string.Empty;
                }
                str.AppendFormat("<span><input type='{3}' value='{0}' name={1} id={1}{2} " + check + "/>", item.Value, name, c, type);
                str.AppendFormat("<lable for='{0}{1}' {3}>{2}</lable></span>", name, c, item.Text, activeClass);

            }
            return MvcHtmlString.Create(str.ToString());
        }


        public static MvcHtmlString RadioButtonList(this HtmlHelper htmlHelper, string name, IEnumerable<ListItem> selectList, IEnumerable<string> selValue)
        {
            return CheckBoxAndRadioFor<object, string>(name, selectList, true, selValue);
        }
        /// <summary>
        /// 单选按钮组，seletList为选中项
        /// </summary>
        /// <param name="htmlHelper"></param>
        /// <param name="name"></param>
        /// <param name="selectList"></param>
        /// <param name="selValue"></param>
        /// <returns></returns>
        public static MvcHtmlString RadioButtonList(this HtmlHelper htmlHelper, string name, IEnumerable<ListItem> selectList, string selValue)
        {
            return RadioButtonList(htmlHelper, name, selectList, new List<string> { selValue });
        }
        /// <summary>
        /// 单选按钮组
        /// </summary>
        /// <param name="htmlHelper"></param>
        /// <param name="name"></param>
        /// <param name="selectList"></param>
        /// <returns></returns>
        public static MvcHtmlString RadioButtonList(this HtmlHelper htmlHelper, string name, IEnumerable<ListItem> selectList)
        {
            return RadioButtonList(htmlHelper, name, selectList, new List<string>());
        }
        /// <summary>
        ///  根据列表输出radiobutton
        /// </summary>
        /// <typeparam name="TModel"></typeparam>
        /// <typeparam name="TProperty"></typeparam>
        /// <param name="htmlHelper"></param>
        /// <param name="expression"></param>
        /// <param name="selectList"></param>
        /// <returns></returns>
        public static MvcHtmlString RadioButtonListFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, IEnumerable<ListItem> selectList)
        {
            return RadioButtonListFor(htmlHelper, expression, selectList, new List<string>());
        }
        public static MvcHtmlString RadioButtonListFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, IEnumerable<ListItem> selectList, IEnumerable<string> selValue)
        {
            string name = ExpressionHelper.GetExpressionText(expression);
            return CheckBoxAndRadioFor<TModel, TProperty>(name, selectList, true, selValue);
        }
        /// <summary>
        /// 根据列表输出radiobutton,selValue为默认选中的项
        /// </summary>
        /// <typeparam name="TModel"></typeparam>
        /// <typeparam name="TProperty"></typeparam>
        /// <param name="htmlHelper"></param>
        /// <param name="expression"></param>
        /// <param name="selectList"></param>
        /// <param name="selValue"></param>
        /// <returns></returns>
        public static MvcHtmlString RadioButtonListFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, IEnumerable<ListItem> selectList, string selValue)
        {
            return RadioButtonListFor(htmlHelper, expression, selectList, new List<string> { selValue });
        }

        public static MvcHtmlString RadioButtonListFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, IEnumerable<SelectListItem> selectList, RepeatDirection repeatDirection = RepeatDirection.Horizontal, int RepeatColumns = 2)
        {
            string name = ExpressionHelper.GetExpressionText(expression);
            string fullHtmlFieldName = htmlHelper.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(name);
            string value = (string)GetModelStateValue(htmlHelper.ViewData, fullHtmlFieldName, typeof(string));
            if (value == null)
            {
                var getValue = htmlHelper.ViewData.Eval(fullHtmlFieldName);
                value = (getValue ?? "").ToString();
            }
            return CheckBoxList(htmlHelper, name, selectList, repeatDirection, RepeatColumns, true, value);
        }
        #endregion
        private static object GetModelStateValue(ViewDataDictionary viewData, string key, Type destinationType)
        {
            ModelState modelState;
            if (viewData.ModelState.TryGetValue(key, out modelState) && modelState.Value != null)
            {
                return modelState.Value.ConvertTo(destinationType, null);
            }
            return null;
        }
    }
    public class ChildButton
    {
        public string id { get; set; }
        public string icon { get; set; }
        public string text { get; set; }
        public string click { get; set; }

    }
    public class ListOptGroup
    {
        /// <summary>
        /// 分组部分
        /// </summary>
        public List<OptGroup> groupList { get; set; }
        /// <summary>
        /// 部分组部分
        /// </summary>
        public List<SelectListItem> selectListItem { get; set; }
    }
    public class OptGroup
    {
        /// <summary>
        /// 组名称
        /// </summary>
        public string lable { get; set; }
        public string labValue { get; set; }
        /// <summary>
        /// 组下面 数据行
        /// </summary>
        public List<SelectListItem> selectListItem { get; set; }
    }
}