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

namespace Kreta.Web.Helpers
{
    public static class RadioButtonListExtensions
    {
        public static MvcHtmlString KretaRadioButtonList(this HtmlHelper helper, string id, List<SelectListItem> items, object htmlAttributes = null)
        {
            TagBuilder ulTag = new TagBuilder("ul");
            ulTag.AddCssClass("noUlLiButton");
            int index = 0;

            foreach (SelectListItem item in items)
            {
                index++;
                string generatedId = id + index;

                StringBuilder stringBuilder = new StringBuilder();
                stringBuilder.Append("<li>");
                stringBuilder.Append($"<input type=\"radio\" name=\"{id}\" value =\"{HttpUtility.HtmlEncode(item.Value)}\" id =\"{generatedId}\" class=\"k-radio\" {(item.Selected ? "checked=\"checked\"" : string.Empty)} />");
                stringBuilder.Append($"<label for= \"{generatedId}\" class=\"k-radio-label\">{HttpUtility.HtmlEncode(item.Text)}</label>");
                stringBuilder.Append("</li><br />");

                ulTag.InnerHtml += stringBuilder.ToString();
            }

            return new MvcHtmlString(ulTag.ToString());
        }

        public static MvcHtmlString KretaRadioButtonListFor<TModel, TValue>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TValue>> expression, List<SelectListItem> items, bool isHorizontal = false, object htmlAttributes = null, string onChangeFunction = null, bool isNeedValidation = false)
        {
            var validationAttributes = "";
            if (isNeedValidation)
            {
                var fieldName = ExpressionHelper.GetExpressionText(expression);
                var fullBindingName = htmlHelper.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(fieldName);
                var metadata = ModelMetadata.FromLambdaExpression(expression, htmlHelper.ViewData);
                var value = metadata.Model;

                if (htmlAttributes == null)
                {
                    htmlAttributes = new Dictionary<string, object>();
                }

                fullBindingName = fullBindingName.Replace('.', '_');
                var validationAttributesDict = htmlHelper.GetUnobtrusiveValidationAttributes(fullBindingName, metadata);
                foreach (var attribute in validationAttributesDict)
                {
                    var attributeValue = attribute.Value.ToString();
                    switch (attribute.Key)
                    {
                        case "data-val-required":
                            ((Dictionary<string, object>)htmlAttributes).Add("data-rule-required", "true");
                            ((Dictionary<string, object>)htmlAttributes).Add("data-msg-required", attributeValue);
                            ((Dictionary<string, object>)htmlAttributes).Add("title", attributeValue);
                            break;
                    }
                }

                validationAttributes = string.Join(" ", ((Dictionary<string, object>)htmlAttributes).Select(x => x.Key + "=\"" + x.Value + "\""));
            }

            TagBuilder ulTag = new TagBuilder("ul");
            ulTag.AddCssClass("noUlLiButton k-widget");
            if (isHorizontal)
            {
                ulTag.AddCssClass("list-inline");
            }

            ulTag.Attributes.Add("style", "border-style: none");
            int index = 0;

            MemberExpression body = expression.Body as MemberExpression;
            string propertyName = body.Member.Name;

            string onchangeAttribute = string.Empty;
            if (!string.IsNullOrWhiteSpace(onChangeFunction))
            {
                onchangeAttribute = " onchange=\"" + onChangeFunction + ";\"";
            }

            foreach (SelectListItem item in items)
            {
                index++;
                string generatedId = propertyName + index;
                string encodedTextWithTags = HttpUtility.HtmlEncode(item.Text);
                foreach (string enencodeHtmlTag in Constants.UnencodeHtmlTagList)
                {
                    encodedTextWithTags = encodedTextWithTags?.Replace($"&lt;{enencodeHtmlTag}&gt;", $"<{enencodeHtmlTag}>").Replace($"&lt;/{enencodeHtmlTag}&gt;", $"</{enencodeHtmlTag}>");
                }

                StringBuilder stringBuilder = new StringBuilder();
                stringBuilder.Append("<li>");
                stringBuilder.Append($"<input type=\"radio\" name=\"{propertyName}\" value =\"{HttpUtility.HtmlEncode(item.Value)}\" id =\"{generatedId}\" class=\"k-radio\"{onchangeAttribute} {(item.Selected ? "checked=\"checked\"" : string.Empty)} {validationAttributes}/>");
                stringBuilder.Append($"<label for= \"{generatedId}\" class=\"k-radio-label\">{encodedTextWithTags}</label>");
                stringBuilder.Append("</li>");
                if (!isHorizontal)
                {
                    stringBuilder.Append("<br />");
                }

                ulTag.InnerHtml += stringBuilder.ToString();
            }

            return new MvcHtmlString(ulTag.ToString());
        }

        public static RadioButtonBuilder KretaRadioButtonNyomtatvany(this HtmlHelper helper, string id, IDictionary<string, object> htmlAttributes = null, object value = null, bool check = false)
        {
            var radioButton = helper.Kendo().RadioButton()
                .Name(id)
                .Value(value)
                .Checked(check);
            if (htmlAttributes != null)
            {
                radioButton.HtmlAttributes(htmlAttributes);
            }
            return radioButton;
        }

        public static MvcHtmlString RenderWithName(this RadioButtonBuilder helper, int labelWidth = 6, int inputWidth = 6, string customClass = "", string tooltipResource = null, bool includeWrapperDiv = true)
        {
            string labelMsg = "";
            foreach (var item in helper.ToComponent().HtmlAttributes)
            {
                if (item.Key == "data-labelmsg" && item.Value != null)
                    labelMsg = item.Value.ToString();
            }

            var sb = new StringBuilder();
            if (string.IsNullOrWhiteSpace(tooltipResource))
                AddRenderWithNameBeginingFrame(sb, labelWidth, inputWidth, helper.ToComponent().Name, labelMsg, customClass, includeWrapperDiv);
            else
                AddRenderWithNameTooltipBeginingFrame(sb, labelWidth, inputWidth, helper.ToComponent().Name, labelMsg, customClass, tooltipResource, includeWrapperDiv);
            sb.Append(helper.ToHtmlString());
            AddRenderWithNameCloseingFrame(sb, includeWrapperDiv);
            return new MvcHtmlString(sb.ToString());
        }

        public static MvcHtmlString RenderWithName(this RadioButtonBuilder helper, string label, int labelWidth = 6, int inputWidth = 6, string tooltipResource = null, bool includeWrapperDiv = true)
        {
            var sb = new StringBuilder();
            if (string.IsNullOrWhiteSpace(tooltipResource))
                AddRenderWithNameBeginingFrame(sb, labelWidth, inputWidth, helper.ToComponent().Name, label, string.Empty, includeWrapperDiv);
            else
                AddRenderWithNameTooltipBeginingFrame(sb, labelWidth, inputWidth, helper.ToComponent().Name, label, string.Empty, tooltipResource, includeWrapperDiv);
            sb.Append(helper.ToHtmlString());
            AddRenderWithNameCloseingFrame(sb, includeWrapperDiv);

            return new MvcHtmlString(sb.ToString());
        }

        private static void AddRenderWithNameBeginingFrame(StringBuilder sb, int labelWidth, int inputWidth, string controlName, string labelMsg, string customClass, bool needsWrapperDiv)
        {
            if (needsWrapperDiv)
            {
                sb.AppendFormat("<div class=\"{0}\" style=\"padding:5px 0px;\">", BootsrapHelper.GetSizeClasses(12));
            }
            sb.AppendFormat("<div class=\"{0} {1} \">", BootsrapHelper.GetSizeClasses(labelWidth), customClass);
            sb.AppendFormat("<label class=\"windowInputLabel\" for=\"{0}\">{1}</label>", controlName, labelMsg);
            sb.AppendFormat("</div><div class=\"{0} {1}\">", BootsrapHelper.GetSizeClasses(inputWidth), customClass);
        }

        private static void AddRenderWithNameTooltipBeginingFrame(StringBuilder sb, int labelWidth, int inputWidth, string controlName, string labelMsg, string customClass, string tooltipResource, bool needsWrapperDiv)
        {
            if (needsWrapperDiv)
            {
                sb.AppendFormat("<div class=\"{0}\" style=\"padding:5px 0px;\">", BootsrapHelper.GetSizeClasses(12));
            }
            sb.AppendFormat("<div class=\"{0} {1} kretaLabelTooltip \">", BootsrapHelper.GetSizeClasses(labelWidth), customClass);
            sb.AppendFormat("<label class=\"windowInputLabel\" for=\"{0}\">{1}", controlName, labelMsg);
            sb.Append("&nbsp;<img class='kretaLabelTooltipImg' />");
            sb.AppendFormat("<span class=\"kretaLabelTooltipText\">{0}</span>", tooltipResource);
            sb.Append("</label>");
            sb.AppendFormat("</div><div class=\"{0} {1}\">", BootsrapHelper.GetSizeClasses(inputWidth), customClass);
        }

        private static void AddRenderWithNameCloseingFrame(StringBuilder sb, bool needsWrapperDiv)
        {
            sb.Append("</div>");

            if (needsWrapperDiv)
            {
                sb.Append("</div>");
            }
        }
    }
}