#include <windows.h>
#include  "util.h"



Util::Util(){
	//downloading = true;
	//downloading = down;	
}

string Util::clrStringTostring(String^ strIn)
{

	char cStr[256];

	
  		sprintf(cStr, "%s", strIn);
		string stlString(cStr);

	return stlString;
}

 

bool Util::checkNet()
{

	try
	{
	   
		WebRequest^ request = WebRequest::Create( "http://vlibras.lavid.ufpb.br" );

   // If required by the server, set the credentials.
   		//request->Credentials = CredentialCache::DefaultCredentials;

   // Get the response.
  		 HttpWebResponse^ response = dynamic_cast<HttpWebResponse^>(request->GetResponse());

		if (response->StatusDescription == "OK"){
			
			return true;
		}
		return false;
		   response->Close();
		}
	catch ( WebException^ e ) 
	{
		return false;
	}  
   
}


vector<string>  Util::checkVersion(bool atualize)
{
	XmlDocument^ xmlDoc;
	XmlNodeList^ files;
	XmlDocument^ xmlDocLocal;
	XmlNodeList^ filesLocal;
	vector<string> updates;
	vector<string> localversion = localVersion();
	try
	{
		xmlDoc = (gcnew XmlDocument());
		xmlDocLocal = (gcnew XmlDocument());

		
		string url = "http://vlibras.lavid.ufpb.br/api/dicionario/"+localversion[3]+"?type=windows";
	   WebRequest^ request = WebRequest::Create( gcnew String(url.c_str()));
	   // If required by the server, set the credentials.
	   request->Credentials = CredentialCache::DefaultCredentials;
	   // Get the response.
	   HttpWebResponse^ response = dynamic_cast<HttpWebResponse^>(request->GetResponse());
		if (!(response->StatusDescription == "OK"))
			goto erro;	
		// Get the stream containing content returned by the server.
		Stream^ dataStream = response->GetResponseStream();
	   // Open the stream using a StreamReader for easy access.
	   StreamReader^ reader = gcnew StreamReader( dataStream );
	   // Read the content.
	   String^ responseFromServer = reader->ReadToEnd();
	   xmlDoc->LoadXml(responseFromServer);
		files = xmlDoc->GetElementsByTagName("version");
		
		long numitems = files->Count;

		
		
		//for (int i=0;i<numitems;i++)
		if(numitems>0)
		{	
			String^ playerVersion = files[0]["playerVersion"]->InnerText;
			String^ dictionaryVersion = files[0]["dictionaryVersion"]->InnerText;

			if(String::Compare( playerVersion, gcnew String(localversion[1].c_str())))
			{	
				updates.push_back("playerVersion");
				updates.push_back(clrStringTostring(playerVersion));
				updates.push_back(clrStringTostring(files[0]["playerUrl"]->InnerText));
			}
			if(String::Compare(dictionaryVersion,gcnew String(localversion[3].c_str())))
			{
				updates.push_back("dictionaryVersion");
				updates.push_back(clrStringTostring(dictionaryVersion));
				updates.push_back(clrStringTostring(files[0]["dictionaryUrl"]->InnerText));
			}

			//if(atualize)
				//saveNewXmlVersion(playerVersion,dictionaryVersion);	
				
		}	

	   erro:
	   // Cleanup the streams and the response.
	   reader->Close();
	   dataStream->Close();
	}catch(Exception^ e)
	{
		updates.push_back("faill");
		return updates;
	}   

	return updates;
}


vector<string>  Util::localVersion()
{
	XmlDocument^ xmlDocLocal;
	XmlNodeList^ filesLocal;
	vector<string> updates;
	try
	{
		xmlDocLocal = (gcnew XmlDocument());
		//xml version local
		StreamReader^ readerLocal = gcnew StreamReader("c:\\vlibras-libs\\update\\updateVersion.xml");
	   
	   String^ responseLocal = readerLocal->ReadToEnd();

	   xmlDocLocal->LoadXml(responseLocal);
		
		filesLocal = xmlDocLocal->GetElementsByTagName("version");

		updates.push_back("playerVersion");
		String^ playerVersion = filesLocal[0]["playerVersion"]->InnerText;
		updates.push_back(clrStringTostring(playerVersion));
		updates.push_back("dictionaryVersion");
		String^ dictionaryVersion = filesLocal[0]["dictionaryVersion"]->InnerText;
		updates.push_back(clrStringTostring(dictionaryVersion));
			
	   // Cleanup the streams and the response.
	   readerLocal->Close();
	}catch(Exception^ e)
	{
		return updates;
	}   

	return updates;
}