// ContactDataObject.cpp - Client Data Object.
//
// (c) 2012-2015 Xestia Software Development.
//
// This file is part of Xestia Address Book.
//
// Xestia Address Book is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by the
// Free Software Foundation, version 3 of the license.
//
// Xestia Address Book is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with Xestia Address Book. If not, see <http://www.gnu.org/licenses/>

#include "ContactDataObject.h"

ContactLoadStatus ContactDataObject::LoadFile(wxString Filename){
	
	if (!wxFileExists(Filename)){
	
		return CONTACTLOAD_FILEMISSING;
	
	}
	
	wxFile ContactFile;
	
	if (!ContactFile.Open(Filename, wxFile::read, wxS_DEFAULT)){
	
		return CONTACTLOAD_FILEERROR;
	
	}
	
	// Check that the vCard is a valid vCard 4.0 file.

	vCard vCard4FormatCheck;
	
	vCard4FormatCheck.LoadFile(Filename);
	
	if (vCard4FormatCheck.Get("VERSION") != wxT("4.0")){
	
		return CONTACTLOAD_FILEINVALIDFORMAT;
	
	}

	// Check that the vCard meets the base specification.
	
	if (!vCard4FormatCheck.MeetBaseSpecification()){
	
		return CONTACTLOAD_FILEBASESPECFAIL;
	
	}
	
	wxStringTokenizer wSTContactFileLines(vCard4FormatCheck.WriteString(), wxT("\r\n"));
	
	std::map<int, wxString> ContactFileLines;

	int ContactLineSeek = 0;

	while (wSTContactFileLines.HasMoreTokens() == TRUE){

		wxString ContactLine = wSTContactFileLines.GetNextToken();
		ContactFileLines.insert(std::make_pair(ContactLineSeek, ContactLine));
		ContactLineSeek++;		
	
	}
	
	wxString wxSPropertyNextLine;
	
	bool ExtraLineSeek = TRUE;
	bool QuoteMode = FALSE;
	bool PropertyFind = TRUE;
	int ContactLineLen = 0;
	int QuoteBreakPoint = 0;
	wxString ContactLine;
	wxString PropertyLine;
	wxString PropertySeg1;
	wxString PropertySeg2;
	wxString PropertyNextLine;
	wxString Property;
	
	for (std::map<int,wxString>::iterator iter = ContactFileLines.begin(); 
	 iter != ContactFileLines.end(); ++iter){

		ExtraLineSeek = TRUE;
		QuoteMode = FALSE;
		PropertyFind = TRUE;
		ContactLineLen = 0;
	 	QuoteBreakPoint = 0;
		ContactLine.Clear();
		PropertyLine.Clear();
		PropertySeg1.Clear();
		PropertySeg2.Clear();
		Property.Clear();
	 
		ContactLine = iter->second;
		
		while (ExtraLineSeek == TRUE){
		
			// Check if there is extra data on the next line 
			// (indicated by space or tab at the start) and add data.
		
			iter++;
			
			if (iter == ContactFileLines.end()){
			
				iter--;
				break;
			
			}			
		
			PropertyNextLine = iter->second;
		
			if (PropertyNextLine.Mid(0, 1) == wxT(" ") || PropertyNextLine.Mid(0, 1) == wxT("\t")){
		
				PropertyNextLine.Remove(0, 1);
				ContactLine.Append(PropertyNextLine);
		
			} else {
			
				iter--;
				ExtraLineSeek = FALSE;
			
			}
		
		}

		ContactLineLen = ContactLine.Len();
		
		// Make sure we are not in quotation mode.
		// Make sure colon does not have \ or \\ before it.
		
		for (int i = 0; i <= ContactLineLen; i++){
		
			if ((ContactLine.Mid(i, 1) == wxT(";") || ContactLine.Mid(i, 1) == wxT(":")) && PropertyFind == TRUE){
			
				PropertyFind = FALSE;
			
			} else if (PropertyFind == TRUE){
			
				Property.Append(ContactLine.Mid(i, 1));
			
			}		
		
			if (ContactLine.Mid(i, 1) == wxT("\"")){
			
				if (QuoteMode == TRUE){
				
					QuoteMode = FALSE;
				
				} else {
			
					QuoteMode = TRUE;
					
				}
			
			}
			
			if (ContactLine.Mid(i, 1) == wxT(":") && ContactLine.Mid((i - 1), 1) != wxT("\\") && QuoteMode == FALSE){
			
				QuoteBreakPoint = i;
				break;
			
			}
		
		}
		
		// Split that line at the point into two variables (ignore the colon).
		
		PropertySeg1 = ContactLine.Mid(0, QuoteBreakPoint);
		PropertySeg2 = ContactLine.Mid((QuoteBreakPoint + 1));
		
		
	 
	}
	
	return CONTACTLOAD_OK;

}