using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using System.IO;
using System.Text;
using Sleis.Models;

namespace Sleis.Utility
{
    public static class ViewFieldUtility
    {
       
        public static string ViewForField(this HtmlHelper htmlHelper, Dictionary<string, PageFieldModel> fields, string fieldId)
        {
            return ViewForField(htmlHelper, fields, fieldId, SessionUtility.CurrentUser.IsAgencyUser());
        }
        public static string ViewForField(this HtmlHelper htmlHelper, Dictionary<string, PageFieldModel> fields, string fieldId, bool renderAsAgency)
        {
            StringBuilder html = new StringBuilder();
            html.Append(" data-field-field-key=" + fieldId);
            
            if (fields != null && fields.ContainsKey(fieldId))
            {
                PageFieldModel field = fields[fieldId];

                if ((renderAsAgency && field.AgencyStyle == CustomFieldDataStyleType.Hidden) ||
                     (!renderAsAgency && field.PublicStyle == CustomFieldDataStyleType.Hidden))
                {
                    html.Append(" class='hide' ");
                }
            }

            return html.ToString();
        }

        public static string TextForField(this HtmlHelper htmlHelper, Dictionary<string, PageFieldModel> fields, string fieldId)
        {
            return Parse(fields, fieldId, SessionUtility.CurrentUser.IsAgencyUser(), htmlHelper);
        }
        public static string TextForField(this HtmlHelper htmlHelper, Dictionary<string, PageFieldModel>  fields, string fieldId, bool renderAsAgency)
        {
            return Parse(fields, fieldId, renderAsAgency, htmlHelper);
        }


        private static string Parse(Dictionary<string, PageFieldModel> fields, string fieldId, bool renderAsAgency, HtmlHelper htmlHelper)
        {
            StringBuilder html = new StringBuilder();

            html.AppendFormat(" id='{0}' ", fieldId);

            if (fields != null && fields.ContainsKey(fieldId))
            {
                PageFieldModel field = fields[fieldId];

                html.AppendFormat(" data-field-page-id='{0}' ", field.PageId);
                html.AppendFormat(" data-field-field-key='{0}' ", field.Key);
                html.AppendFormat(" data-field-field-title='{0}' ", HttpUtility.HtmlEncode(field.Title));
                html.AppendFormat(" data-field-field-help='{0}' ", HttpUtility.HtmlEncode(field.HelpText));
                if (renderAsAgency)
                {
                    html.AppendFormat(" data-field-field-style='{0}' ", field.AgencyStyle);
                }
                else
                {
                    html.AppendFormat(" data-field-field-style='{0}' ", field.PublicStyle);
                }

                html.Append(" class='dynamicField");

                if (
                    (renderAsAgency && field.AgencyStyle == CustomFieldDataStyleType.Hidden) ||
                    (!renderAsAgency && field.PublicStyle == CustomFieldDataStyleType.Hidden)
                   )
                {
                    html.Append(" hide ");
                }

                html.Append("' ");

            }            
            else
            {
                html.Append(" class='dynamicField' ");
            }

            //TODO: This is a a bit of a hack to close the tag, and add the img help icon.
            html.Append("><img src='" + UrlHelper.GenerateContentUrl("~/Content", htmlHelper.ViewContext.HttpContext) + "/Css/Img/help.png' helpId='"+fieldId+"' class='custom-field-help' /");
            return html.ToString();
        }

    }
}