using System;
using System.Data;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using DSWeb.Models;
using System.Web;

namespace DSWeb.TemplateManger
{
    public class TemplateManager
    {
        private static TemplateManager configManager = new TemplateManager();
        private TemplateManager() { }

        public static TemplateManager Instance()
        {
            return configManager;
        }

        public object GetConfigInfo(TemplateType tempConfigType)
        {
            object resultObj = null;
            switch (tempConfigType)
            {
                case TemplateType.INVOICECONFIG:
                    IList<InvoiceConfigEntity> invoiceConfigEntities = new List<InvoiceConfigEntity>();
                    XmlNode xmlNode = GetXmlConfigObj("Templates/Templates.xml", "invoice");

                    int iCount = 0;
                    for (int i = 0; i < xmlNode.ChildNodes.Count; i++)
                    {
                        InvoiceConfigEntity invoiceConfigEntity = new InvoiceConfigEntity();

                        invoiceConfigEntity.ItemName = xmlNode.ChildNodes[i].Name;
                        invoiceConfigEntity.ItemValue = xmlNode.ChildNodes[i].InnerText;

                        invoiceConfigEntities.Add(invoiceConfigEntity);
                        iCount++;
                    }

                    if (iCount > 0)
                    {
                        resultObj = invoiceConfigEntities;
                    }
                    else
                    {
                        resultObj = invoiceConfigEntities;
                    }
                    break;
            }

            return resultObj;
        }

        private XmlNode GetXmlConfigObj(string tempXmlUrl, string tempNodeName)
        {
            XmlDocument xmlDoc = new XmlDocument();

            XmlNode tempNode = null;
            string currentUrl = HttpContext.Current.Request.Url.AbsoluteUri;

            string xmlUrl = currentUrl.Substring(0, currentUrl.Substring(0, currentUrl.LastIndexOf("/")).LastIndexOf("/") + 1) + tempXmlUrl;
            try
            {

                xmlDoc.Load(xmlUrl);

                for(int i=0;i<xmlDoc.ChildNodes[1].ChildNodes.Count;i++)
                {
                    if (xmlDoc.ChildNodes[1].ChildNodes[i].Name.Trim().ToLower().Equals(tempNodeName))
                    {
                        tempNode = xmlDoc.ChildNodes[1].ChildNodes[i]; 
                    }
                }
            }
            catch(Exception)
            {
            }
            return tempNode;
        }
    }

    public enum TemplateType
    {
        INVOICECONFIG = 0
    }

}