#include "checkVersion.h"

#include <wx/protocol/http.h>
#include <wx/sstream.h>
#include "../version/version.h"
#include <wx/msgdlg.h>
#include <wx/utils.h>


class CloseConnectionOnExit
{
public:
    CloseConnectionOnExit(wxInputStream* httpStream, wxHTTP& webAccess) :
            m_httpStream(httpStream),
            m_webAccess(webAccess) {}

    ~CloseConnectionOnExit()
    {
        delete m_httpStream; //must be deleted BEFORE webAccess is closed
        m_webAccess.Close();
    }

private:
    wxInputStream* m_httpStream;
    wxHTTP& m_webAccess;
};


void FreeFileSync::checkForNewVersion()
{
    wxHTTP webAccess;
    wxInputStream* httpStream = NULL;

    wxWindowDisabler dummy;
    CloseConnectionOnExit dummy2(httpStream, webAccess);

    webAccess.SetHeader(wxT("Content-type"), wxT("text/html; charset=utf-8"));
    webAccess.SetTimeout(10); //10 seconds of timeout instead of 10 minutes...

    if (webAccess.Connect(wxT("freefilesync.cvs.sourceforge.net"))) //only the server, no pages here yet...
    {
        //wxApp::IsMainLoopRunning(); // should return true

        httpStream = webAccess.GetInputStream(wxT("/viewvc/*checkout*/freefilesync/version/version.txt"));

        if (httpStream && webAccess.GetError() == wxPROTO_NOERR)
        {
            wxString newestVersion;
            wxStringOutputStream out_stream(&newestVersion);
            httpStream->Read(out_stream);
            if (!newestVersion.empty())
            {
                if (FreeFileSync::currentVersion == newestVersion)
                {
                    wxMessageBox(_("FreeFileSync is up to date!"), _("Information"), wxICON_INFORMATION);
                    return;
                }
                else
                {
                    const int rv = wxMessageBox(wxString(_("A newer version is available:"))  + wxT(" v") + newestVersion + wxT(". ") + _("Download now?"), _("Information"), wxYES_NO | wxICON_QUESTION);
                    if (rv == wxYES)
                        wxLaunchDefaultBrowser(wxT("http://sourceforge.net/project/showfiles.php?group_id=234430"));
                    return;
                }
            }
        }
    }

    wxMessageBox(_("Unable to connect to sourceforge.net!"), _("Error"), wxOK | wxICON_ERROR);
}