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

namespace Telerik.Sitefinity.UI.MVC.Helpers
{
  public class HybridForm : IDisposable
  {
    private const string defaultFormName = "defaultForm";
    private const string submitScript = "<script type=\"text/javascript\">\r\n            var sfMvcInputs = document.getElementById(\"{0}\").getElementsByTagName(\"input\");\r\n            var sfMvcInputsLen = sfMvcInputs.length;\r\n            while(sfMvcInputsLen--) {{\r\n                typeAttr = sfMvcInputs[sfMvcInputsLen].getAttribute(\"type\");\r\n                if(typeAttr == \"submit\") {{\r\n                    sfMvcInputs[sfMvcInputsLen].onclick = function() {{\r\n                        document.forms[\"aspnetForm\"].action = \"{1}\";\r\n                        document.forms[\"aspnetForm\"].method = \"{2}\";\r\n                        document.forms[\"aspnetForm\"].submit();\r\n                    }};\r\n                }}\r\n            }}\r\n        </script>";
    private readonly TextWriter writer;
    private readonly ViewContext viewContext;
    private readonly string formName;
    private string actionName;
    private readonly bool hasRouteData;
    private readonly object routeValues;
    private readonly RouteValueDictionary routeValueDictionary;
    private readonly FormMethod method;
    private readonly object htmlAttributes;

    public bool IsInPureMode
    {
      get
      {
        if (this.viewContext != null && this.viewContext.TempData != null && this.viewContext.TempData.ContainsKey("IsInPureMode"))
          return (bool) this.viewContext.TempData["IsInPureMode"];
        else
          return false;
      }
    }

    public HybridForm(ViewContext viewContext, string actionName, string formName, FormMethod method, object htmlAttributes)
    {
      this.formName = string.IsNullOrEmpty(formName) ? "defaultForm" : formName;
      this.actionName = actionName;
      this.viewContext = viewContext;
      this.writer = viewContext.Writer;
      this.method = method;
      this.htmlAttributes = htmlAttributes;
      this.WriteStartTag();
    }

    public HybridForm(ViewContext viewContext, string actionName, string formName, object routeValues, FormMethod method, object htmlAttributes)
      : this(viewContext, actionName, formName, method, htmlAttributes)
    {
      this.routeValues = routeValues;
      this.hasRouteData = true;
    }

    public HybridForm(ViewContext viewContext, string actionName, string formName, RouteValueDictionary routeValueDictionary, FormMethod method, object htmlAttributes)
      : this(viewContext, actionName, formName, method, htmlAttributes)
    {
      this.routeValueDictionary = routeValueDictionary;
      this.hasRouteData = true;
    }

    public void WriteStartTag()
    {
      if (this.IsInPureMode)
      {
        this.writer.Write("<form ");
        this.writer.Write("action=\"");
        this.writer.Write(this.GenerateActionUrl());
        this.writer.Write("\" ");
        this.writer.Write("method=\"");
        this.writer.Write(this.method == FormMethod.Post ? "POST" : "GET");
        this.writer.Write("\" ");
        this.writer.Write("name=\"");
      }
      else
        this.writer.Write("<div id=\"");
      this.writer.Write(this.formName);
      this.writer.Write("\"");
      this.WriteHtmlAttributes();
      this.writer.Write(">");
    }

    public void Dispose()
    {
      if (this.IsInPureMode)
        this.writer.Write("</form>");
      else
        this.writer.Write("</div>");
      string str1 = this.GenerateActionUrl();
      string str2 = (string) null;
      if (this.method == FormMethod.Post)
        str2 = "POST";
      else if (this.method == FormMethod.Get)
        str2 = "GET";
      if (this.IsInPureMode)
        return;
      this.writer.Write(string.Format("<script type=\"text/javascript\">\r\n            var sfMvcInputs = document.getElementById(\"{0}\").getElementsByTagName(\"input\");\r\n            var sfMvcInputsLen = sfMvcInputs.length;\r\n            while(sfMvcInputsLen--) {{\r\n                typeAttr = sfMvcInputs[sfMvcInputsLen].getAttribute(\"type\");\r\n                if(typeAttr == \"submit\") {{\r\n                    sfMvcInputs[sfMvcInputsLen].onclick = function() {{\r\n                        document.forms[\"aspnetForm\"].action = \"{1}\";\r\n                        document.forms[\"aspnetForm\"].method = \"{2}\";\r\n                        document.forms[\"aspnetForm\"].submit();\r\n                    }};\r\n                }}\r\n            }}\r\n        </script>", (object) this.formName, (object) str1, (object) str2));
    }

    private string GenerateActionUrl()
    {
      string str1 = this.viewContext.RequestContext.HttpContext.Request.Url.AbsolutePath;
      if (this.viewContext.RequestContext.RouteData.Values.ContainsKey("action"))
      {
        string str2 = this.viewContext.RequestContext.RouteData.Values["action"].ToString();
        if (str1.IndexOf(str2) > -1)
          str1 = str1.Substring(0, str1.IndexOf(str2));
        str1 = str1.Replace("//", "/");
      }
      if (!str1.StartsWith("/"))
        str1 = "/" + str1;
      if (string.IsNullOrEmpty(this.actionName))
        this.actionName = "Index";
      string str3 = !str1.EndsWith("/") ? str1 + "/" + this.actionName : str1 + this.actionName;
      if (this.hasRouteData)
      {
        string str2 = str3 + "?";
        Dictionary<string, string> routeValues = this.GetRouteValues();
        foreach (string index in routeValues.Keys)
        {
          str2 = str2 + index;
          str2 = str2 + "=";
          str2 = str2 + routeValues[index];
          str2 = str2 + "&";
        }
        str3 = str2.Remove(str2.Length - 1);
      }
      return str3;
    }

    private Dictionary<string, string> GetRouteValues()
    {
      Dictionary<string, string> dictionary = new Dictionary<string, string>();
      if (this.routeValues != null)
      {
        foreach (PropertyDescriptor propertyDescriptor in TypeDescriptor.GetProperties(this.routeValues))
          dictionary.Add(propertyDescriptor.Name, propertyDescriptor.GetValue(this.routeValues).ToString());
      }
      else if (this.routeValueDictionary != null)
      {
        foreach (string key in this.routeValueDictionary.Keys)
          dictionary.Add(key, this.routeValueDictionary[key].ToString());
      }
      return dictionary;
    }

    private void WriteHtmlAttributes()
    {
      if (this.htmlAttributes == null)
        return;
      IDictionary dictionary = this.htmlAttributes as IDictionary;
      if (dictionary != null)
      {
        foreach (object index in (IEnumerable) dictionary.Keys)
        {
          this.writer.Write(" ");
          string str = index.ToString();
          if (str.StartsWith("@"))
            str = str.Substring(1);
          this.writer.Write(str);
          this.writer.Write("=\"");
          this.writer.Write(dictionary[index].ToString());
          this.writer.Write("\"");
        }
      }
      else
      {
        foreach (PropertyDescriptor propertyDescriptor in TypeDescriptor.GetProperties(this.htmlAttributes))
        {
          this.writer.Write(" ");
          string str = propertyDescriptor.Name;
          if (str.StartsWith("@"))
            str = str.Substring(1);
          this.writer.Write(str);
          this.writer.Write("=\"");
          this.writer.Write(propertyDescriptor.GetValue(this.htmlAttributes));
          this.writer.Write("\"");
        }
      }
    }
  }
}