using System.Web.Mvc;
using System.Web.Routing;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;

namespace Infinicast.Jeremy.Controls {
    public class GridViewColumn {
        public string Name { get; set; }
        public string Heading { get; set; }
        public string BindingProperty { get; set; }
        public string DataFormat { get; set; }
    }
    public static class Helpers {
        public static string GridView(this HtmlHelper helper, string name, IEnumerable<object> data, IEnumerable<GridViewColumn> columns, object htmlAttributes) {
            StringBuilder sbGrid = new StringBuilder();
            sbGrid.Append(string.Concat("<table id=\"", name, "\"", GetValues(htmlAttributes).GetAttributeString(), ">"));
            //START THEAD
            sbGrid.Append("<thead><tr>");
            foreach (var column in columns) {
                sbGrid.Append(string.Concat("<th>", column.Name, "</th>"));
            }
            sbGrid.Append("</tr></thead>");
            //END THEAD

            //START TBODY
            sbGrid.Append("<tbody>");
            foreach (var obj in data) {
                sbGrid.Append("<tr>");
                var values = GetValues(obj);
                foreach (var column in columns) {
                    sbGrid.Append("<td>");
                    sbGrid.AppendFormat(column.DataFormat, values[column.BindingProperty]);
                    sbGrid.Append("</td>");
                }
                sbGrid.Append("</tr>");
            }
            sbGrid.Append("</tbody>");
            //END TBODY

            return sbGrid.ToString();
        }
        public static IEnumerable<GridViewColumn> Columns(this GridViewColumn s, params GridViewColumn[] values) {
            return (IEnumerable<GridViewColumn>)values;
        }
        public static string GetAttributeString(this Dictionary<string, object> htmlAttributes) {
            StringBuilder sbAttr = new StringBuilder(htmlAttributes.Count * 15);
            foreach (var item in htmlAttributes) {
                sbAttr.AppendFormat(" {0}=\"{1}\"", item.Key, item.Value);
            }
            return sbAttr.ToString();
        }
        public static Dictionary<string, object> GetValues(object values) {
            var ret = new Dictionary<string, object>();
            if (values != null) {
                foreach (PropertyDescriptor item in TypeDescriptor.GetProperties(values)) {
                    ret.Add(item.Name, item.GetValue(values));
                }
            }
            return ret;
        }
    }
}