using Sarand.Core.App;
using Sarand.Core.Base;
using Sarand.Core.Net;
using Sarand.Core.Xml;
using Sarand.PatientMgr.Core.Data;
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Linq;

namespace Sarand.PatientMgr.Core.WebService
{
	//=======================================================================
	public class SpmWebServiceResponse
	{
		//-------------------------------------------------------------------
		// Definitions.

		//-------------------------------------------------------------------
		// Configuration.
		public class Config
		{
			public DateTime RequestStarted { get; set; } = DateTime.Now;
			public DateTime RequestCompleted { get; set; }
			public SacsHttpResponseData HttpResponseData { get; set; }
		}

		//-------------------------------------------------------------------
		// Data members.
		protected readonly Config config;

		//-------------------------------------------------------------------
		// Construction.
		public SpmWebServiceResponse (Config config)
		{
			this.config = config;
			ResponseData = SpmWindowsServiceCrypter.DecryptResponseData(config.HttpResponseData.Data);

			try
			{
				// Identify the response element in the xml data.
				ResponseDoc = XDocument.Parse(ResponseData, LoadOptions.None);
				XElement rootElement = ResponseDoc.Root;
				if (rootElement.Name.LocalName.EndsWithCI("Response"))
					ResponseElement = rootElement;
				else if (rootElement.Name.LocalName.EqualsCI(SacsSoapUtils.GetElementName(SoapElementType.Envelope)))
				{
					SoapEnvelope = true;
					SoapPrefix = rootElement.GetNamespacePrefix();
					foreach (XElement soapElement in rootElement.Elements())
					{
						if (soapElement.Name.LocalName.EqualsCI(SacsSoapUtils.GetElementName(SoapElementType.Body)))
						{
							foreach (XElement bodyElement in soapElement.Elements())
							{
								if (bodyElement.Name.LocalName.EndsWithCI("Response"))
								{
									ResponseElement = bodyElement;
								}
							}
						}
					}
				}
				if (ResponseElement != null)
				{
					// Extract status code.
					XElement statusElement = ResponseElement.GetFirstChildElement(SpmWebServiceDfn.ElementName.Status);
					if (statusElement != null)
					{
						StatusCode = statusElement.GetAttributeValue(SpmWebServiceDfn.AttributeName.Code);
						// Extract messages.
						XElement messagesElement = statusElement.GetFirstChildElement(SpmWebServiceDfn.ElementName.Messages);
						if (messagesElement != null)
						{
							foreach (XElement messageElement in messagesElement.GetChildElements(SpmWebServiceDfn.ElementName.Message))
							{
								String context = messageElement.GetAttributeValue(SpmWebServiceDfn.AttributeName.Context);
								String code = messageElement.GetAttributeValue(SpmWebServiceDfn.AttributeName.Code);
								SaMessageLevel level = SacsSystem.GetMessageLevelFromCode(messageElement.GetAttributeValue(SpmWebServiceDfn.AttributeName.Level));
								SpmWebServiceMessage message = new SpmWebServiceMessage(context, code, messageElement.Value, level);
								Messages.Add(message);
							}
						}
					}
				}
			}
			catch (Exception) { }
		}
		public SpmWebServiceResponse (SpmWebServiceResponse serviceResponse)
		{
			// Copied from another service reponse - don't re-intrepert properties.
			this.config = serviceResponse.config;
			// Structure.
			SoapEnvelope = serviceResponse.SoapEnvelope;
			SoapPrefix = serviceResponse.SoapPrefix;
			// Response.
			ResponseData = serviceResponse.ResponseData;
			ResponseDoc = serviceResponse.ResponseDoc;
			ResponseElement = serviceResponse.ResponseElement;
			// Status.
			StatusCode = serviceResponse.StatusCode;
			Messages = serviceResponse.Messages;
		}

		//-------------------------------------------------------------------
		// Properties.
		public DateTime RequestStarted { get { return config.RequestStarted; } }
		public DateTime RequestCompleted { get { return config.RequestCompleted; } }
		public SacsHttpResponseData HttpResponseData { get { return config.HttpResponseData; } }
		// Structure.
		public bool SoapEnvelope { get; }
		public String SoapPrefix { get; } = "";
		// Response.
		public String ResponseData { get; }
		public XDocument ResponseDoc { get; }
		public XElement ResponseElement { get; }
		// Status.
		public bool TaskCancelled { get; set; }
		public String StatusCode { get; } = "";
		public List<SpmWebServiceMessage> Messages { get; } = new List<SpmWebServiceMessage>();
		public String ErrorStateMessage { get; set; }

		//-------------------------------------------------------------------
	}
	//=======================================================================
}