using System;
using System.Globalization;
using System.Linq.Expressions;
using System.Text;
using System.Web.Mvc;
using Kreta.Framework;

namespace Kreta.Web.Helpers
{
    public static class RangeNumericExtensions
    {
        public static MvcHtmlString KretaRangeNumeric<TModel, TValue>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TValue>> fromexpression, Expression<Func<TModel, TValue>> toexpression, string title = "", int? precision = null, double? step = null)
        {
            var spinStep = (step ?? 1).ToString(CultureInfo.InvariantCulture.NumberFormat);
            var fromFieldName = ExpressionHelper.GetExpressionText(fromexpression);
            var fromFullBindingName = helper.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(fromFieldName);
            var fromMetadata = ModelMetadata.FromLambdaExpression(fromexpression, helper.ViewData);
            var fromDisplayName = fromMetadata.DisplayName;
            var fromValue = fromMetadata.Model;
            var fromValidationAttributes = helper.GetUnobtrusiveValidationAttributes(fromFullBindingName, fromMetadata);
            object globalMinValue = Constants.General.KretaRangeNumericSideBarMinValue;
            if (fromValidationAttributes.Count > 0)
            { foreach (var item in fromValidationAttributes) { if (item.Key == "data-val-range-min") { globalMinValue = item.Value; } } }
            int decimalPrecision = precision ?? (globalMinValue != null && globalMinValue is Double ? 2 : 0);

            var toFieldName = ExpressionHelper.GetExpressionText(toexpression);
            var toFullBindingName = helper.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(toFieldName);
            var toMetadata = ModelMetadata.FromLambdaExpression(toexpression, helper.ViewData);
            var toDisplayName = toMetadata.DisplayName;
            var toValue = toMetadata.Model;
            var toValidationAttributes = helper.GetUnobtrusiveValidationAttributes(toFullBindingName, toMetadata);
            object globalMaxValue = Constants.General.KretaRangeNumericSideBarMaxValue;
            if (toValidationAttributes.Count > 0)
            { foreach (var item in toValidationAttributes) { if (item.Key == "data-val-range-max") { globalMaxValue = item.Value; } } }
            decimalPrecision = precision ?? (globalMaxValue != null && globalMaxValue is Double ? 2 : 0);

            StringBuilder sb = new StringBuilder();
            string fromDate = "<input id='" + fromFieldName + "' name='" + fromFieldName + "' />";
            string toDate = "<input id='" + toFieldName + "' name='" + toFieldName + "' />";

            string scriptTag = @"<script>
                                    $(document).ready(function () {
                                        function set" + fromFieldName + @"Change() {
                                            var maxValue = $('#" + toFieldName + @"').data('kendoNumericTextBox').value();
                                            if(!(maxValue == null || typeof maxValue === 'undefined')) {
                                                $('#" + fromFieldName + @"').data('kendoNumericTextBox').max(maxValue);
                                            }

                                            $('#" + fromFieldName + @"').focusin().focusout();
                                        }

                                        function set" + toFieldName + @"Change() {
                                            var minValue = $('#" + fromFieldName + @"').data('kendoNumericTextBox').value();
                                            if(!(minValue == null || typeof minValue === 'undefined'')) {
                                                $('#" + toFieldName + @"').data('kendoNumericTextBox').min(minValue);
                                            }

                                            $('#" + toFieldName + @"').focusin().focusout();
                                        }

                                        $('#" + fromFieldName + @"').kendoNumericTextBox({
                                            format: 'n" + decimalPrecision.ToString() + @"',
                                            decimals: " + decimalPrecision.ToString() + @",
                                            step: " + spinStep + @",
                                            change: set" + fromFieldName + @"Change";
            if (globalMinValue != null)
            { scriptTag += ",min: " + (globalMinValue is Double ? (double)globalMinValue : (int)globalMinValue).ToString(CultureInfo.InvariantCulture.NumberFormat) + ""; }
            scriptTag += @"
                                        });

                                        $('#" + toFieldName + @"').kendoNumericTextBox({
                                            format: 'n" + decimalPrecision.ToString() + @"',
                                            decimals: " + decimalPrecision.ToString() + @",
                                            step: " + spinStep + @",
                                            change: set" + toFieldName + @"Change";
            if (globalMaxValue != null)
            { scriptTag += ",max: " + (globalMaxValue is Double ? (double)globalMaxValue : (int)globalMaxValue).ToString(CultureInfo.InvariantCulture.NumberFormat) + ""; }
            scriptTag += @"
                                        });
                                    });
                                </script>";

            string displayName = "";
            if (!string.IsNullOrWhiteSpace(title))
            { displayName = title; }
            else
            {
                if (!string.IsNullOrWhiteSpace(fromDisplayName))
                { displayName = fromDisplayName; }
                else
                {
                    if (!string.IsNullOrWhiteSpace(toDisplayName))
                    { displayName = toDisplayName; }
                }
            }

            sb.Append("<div class=\"col-xs-6\">");
            sb.Append("<label class=\"searchPanelLabel\" for=\"").Append("a").Append("\">").Append(displayName).Append("</label>");
            sb.Append("</div>");
            sb.Append("<div class=\"col-xs-6\">");
            sb.Append(fromDate).Append("&nbsp;").Append(toDate).Append(scriptTag);
            sb.Append("</div>");

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

        public static MvcHtmlString KretaRangeNumericSideBar<TModel, TValue>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TValue>> fromexpression, Expression<Func<TModel, TValue>> toexpression, string title = "", int? precision = null, bool needTolIgLabels = false, double? step = null)
        {
            var spinStep = (step ?? 1).ToString(CultureInfo.InvariantCulture.NumberFormat);
            var fromFieldName = ExpressionHelper.GetExpressionText(fromexpression);
            var fromFullBindingName = helper.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(fromFieldName);
            var fromMetadata = ModelMetadata.FromLambdaExpression(fromexpression, helper.ViewData);
            var fromDisplayName = fromMetadata.DisplayName;
            var fromValue = fromMetadata.Model;
            var fromValidationAttributes = helper.GetUnobtrusiveValidationAttributes(fromFullBindingName, fromMetadata);
            object globalMinValue = Constants.General.KretaRangeNumericSideBarMinValue;
            if (fromValidationAttributes.Count > 0)
            { foreach (var item in fromValidationAttributes) { if (item.Key == "data-val-range-min") { globalMinValue = item.Value; } } }
            int decimalPrecision = precision ?? (globalMinValue != null && globalMinValue is Double ? 2 : 0);

            var toFieldName = ExpressionHelper.GetExpressionText(toexpression);
            var toFullBindingName = helper.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(toFieldName);
            var toMetadata = ModelMetadata.FromLambdaExpression(toexpression, helper.ViewData);
            var toDisplayName = toMetadata.DisplayName;
            var toValue = toMetadata.Model;
            var toValidationAttributes = helper.GetUnobtrusiveValidationAttributes(toFullBindingName, toMetadata);
            object globalMaxValue = Constants.General.KretaRangeNumericSideBarMaxValue;
            if (toValidationAttributes.Count > 0)
            { foreach (var item in toValidationAttributes) { if (item.Key == "data-val-range-max") { globalMaxValue = item.Value; } } }
            decimalPrecision = precision ?? (globalMaxValue != null && globalMaxValue is Double ? 2 : 0);

            StringBuilder sb = new StringBuilder();
            string fromDate = "<input id='" + fromFieldName + "' name='" + fromFieldName + "' />";
            string toDate = "<input id='" + toFieldName + "' name='" + toFieldName + "' />";

            string scriptTag = @"<script>
                                    $(document).ready(function () {
                                        function set" + fromFieldName + @"Change() {
                                            var maxValue = $('#" + toFieldName + @"').data('kendoNumericTextBox').value();
                                            if(!(maxValue == null || typeof maxValue === 'undefined')) {
                                                $('#" + fromFieldName + @"').data('kendoNumericTextBox').max(maxValue);
                                            }

                                            $('#" + fromFieldName + @"').focusin().focusout();
                                        }

                                        function set" + toFieldName + @"Change() {
                                            var minValue = $('#" + fromFieldName + @"').data('kendoNumericTextBox').value();
                                            if(!(minValue == null || typeof minValue === 'undefined')) {
                                                $('#" + toFieldName + @"').data('kendoNumericTextBox').min(minValue);
                                            }

                                            $('#" + toFieldName + @"').focusin().focusout();
                                        }

                                        $('#" + fromFieldName + @"').kendoNumericTextBox({
                                            format: 'n" + decimalPrecision.ToString() + @"',
                                            decimals: " + decimalPrecision.ToString() + @",
                                            spin: set" + fromFieldName + @"Change,
                                            step: " + spinStep;
            if (globalMinValue != null)
            { scriptTag += ",min: " + (globalMinValue is Double ? (double)globalMinValue : (int)globalMinValue).ToString(CultureInfo.InvariantCulture.NumberFormat) + ""; }
            if (globalMaxValue != null)
            { scriptTag += ",max: " + (globalMaxValue is Double ? (double)globalMaxValue : (int)globalMaxValue).ToString(CultureInfo.InvariantCulture.NumberFormat) + ""; }
            scriptTag += @"
                                        });

                                        $('#" + toFieldName + @"').kendoNumericTextBox({
                                            format: 'n" + decimalPrecision.ToString() + @"',
                                            decimals: " + decimalPrecision.ToString() + @",
                                            spin: set" + toFieldName + @"Change,
                                            step: " + spinStep;
            if (globalMinValue != null)
            { scriptTag += ",min: " + (globalMinValue is Double ? (double)globalMinValue : (int)globalMinValue).ToString(CultureInfo.InvariantCulture.NumberFormat) + ""; }
            if (globalMaxValue != null)
            { scriptTag += ",max: " + (globalMaxValue is Double ? (double)globalMaxValue : (int)globalMaxValue).ToString(CultureInfo.InvariantCulture.NumberFormat) + ""; }
            scriptTag += @"
                                        });
                            ";
            if (needTolIgLabels)
            {
                scriptTag += "$('#" + fromFieldName + @"').parent().parent().after('" + string.Format("<span class=\"searchPanelLabel\">{0}</span>", StringResourcesUtil.GetString(3080)) + @"');
                                        $('#" + toFieldName + @"').parent().parent().after('" + string.Format("<span class=\"searchPanelLabel\">{0}</span>", StringResourcesUtil.GetString(3081)) + @"');"
                ;
            }
            scriptTag += @"
                                    });
                                </script>";

            string displayName = "";
            if (!string.IsNullOrWhiteSpace(title))
            { displayName = title; }
            else
            {
                if (!string.IsNullOrWhiteSpace(fromDisplayName))
                { displayName = fromDisplayName; }
                else
                {
                    if (!string.IsNullOrWhiteSpace(toDisplayName))
                    { displayName = toDisplayName; }
                }
            }

            sb.Append("<div class=\"searchPanelRow\">");
            sb.Append("<div class=\"searchPanelRowTitle\">");
            sb.Append("<label class=\"searchPanelLabel\" for=\"").Append("aaa").Append("\">").Append(displayName).Append("</label>");
            sb.Append("</div>");
            sb.Append("<div class=\"searchPanelRowValue\">");
            sb.Append(fromDate).Append("<br />").Append(toDate).Append(scriptTag);
            sb.Append("</div>");
            sb.Append("</div>");

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