// xestiacalendar_testcommon.cpp - Xestia Calendar Unit Test Common Functions.
//
// (c) 2016-2017 Xestia Software Development.
//
// This file is part of Xestia Calendar.
//
// Xestia Calendar 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 Calendar 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 Calendar. If not, see <http://www.gnu.org/licenses/>

#include <fstream>

#include "xestiacalendar_testcommon.h"
#include "../common/file.h"

ProcessConnectionDataFileResult ProcessConnectionDataFile(string dataFilename, 
	CalDAVConnectionData *connData){
		
	ProcessConnectionDataFileResult processResult = PROCESSCONNECTIONDATAFILE_UNITTESTFAIL;
		
	// Check if the file exists and return 
	// PROCESSCONNECTIONDATAFILE_MISSING if not.
	
	if (!FileExists(dataFilename)){
		return PROCESSCONNECTIONDATAFILE_MISSING;
	}
	
	ifstream fileStream;
	string receivedStringData = "";
	
	fileStream.open(dataFilename, ifstream::in);
	
	if (fileStream.rdstate() & ifstream::failbit){
		return PROCESSCONNECTIONDATAFILE_CANNOTOPEN;
	}

	if (fileStream.rdstate() & ifstream::badbit){
		return PROCESSCONNECTIONDATAFILE_CANNOTOPEN;
	}
	
	// Process the file.
	
	char *bufferRead = new char[256];
	
	while (!fileStream.eof()){
		
		fileStream.getline(bufferRead, 256);
		receivedStringData.append(bufferRead);
		receivedStringData.append("\n");
		
	}
	
	delete[] bufferRead;
	
	bool newLine = false;
	bool skipMode = false;
	bool equalFound = false;
	bool quoteMode = false;
	bool serverNameFound = false;
	bool serverUserFound = false;
	bool serverPassFound = false;
	bool serverSSLFound = false;
	bool serverPortFound = false;
	bool serverPrefixFound = false;
	char bufferChar = 0;
	int stringDataSize = receivedStringData.size();
	int seekCount = 0;
	string propertyName;
	string propertyValue;

	while (seekCount < stringDataSize){

		if (receivedStringData[seekCount] == '='){
		
			equalFound = true;		
		
		} else if (receivedStringData[seekCount] == '\n'){
		
			// Newline reached. Check for what type of
			// data it is.
		
			// Chceck that the equals sign has been found,
			// there is a values in the property name
			// and property value before doing anything.
						
			if (equalFound == true &&
				propertyName.size() > 0 &&
				propertyValue.size() > 0){
			
				if (propertyName == "server" && serverNameFound == false){
				
					// Setup the server hostname.
				
					connData->hostname = propertyValue;
					serverNameFound = true;
				
				} else if (propertyName == "port" && serverPortFound == false){
				
					// Setup the server port.
				
					int portNum;
					bool portNumValid = true;
				
					try{
						portNum = stoi(propertyValue);
					}
					
					catch(const invalid_argument &oor){
						portNumValid = false;
					}
					
					// Port Number is valid so add to the
					// CalDAVConnectionData handle.
					
					if (portNumValid == true){
						connData->port = portNum;
						serverPortFound = true;
					}
				
				} else if (propertyName == "user" && serverUserFound == false){
				
					// Setup the server user.
					
					connData->username = propertyValue;
					serverUserFound = true;
				
				} else if (propertyName == "pass" && serverPassFound == false){
				
					// Setup the server pass.
					
					connData->password = propertyValue;
 					serverPassFound = true;				
				
				} else if (propertyName == "ssl" && serverSSLFound == false){
				
					// Setup the server SSL status.
					
					if (propertyValue == "true"){
						connData->useSSL = true;
					} else {
						connData->useSSL = false;					
					}
					
					serverSSLFound = true;
				
				} else if (propertyName == "prefix" && serverPrefixFound == false){
				
					// Setup the server prefix.
				
					connData->prefix = propertyValue;
					serverPrefixFound = true;
				
				}
				
			}
			
			// Reset the variables.
		
			equalFound = false;
			propertyName.clear();
			propertyValue.clear();
		
		} else {
		
			// No special character so add it to the 
			// Property name or value depending on 
			// if the equal sign has been found.
		
			bufferChar = receivedStringData[seekCount];
		
			if (equalFound == true){
				propertyValue += bufferChar;
			} else {
				propertyName += bufferChar;
			}
			
			bufferChar = 0;
		
		}

		seekCount++;

	}
	
	// Check that the CalDAV connection data object 
	// contains valid data.
	
	bool calDAVConnDataResult = CalDAVObjectValidSettings(connData);
	
	if (calDAVConnDataResult == false){
		processResult = PROCESSCONNECTIONDATAFILE_INVALID;
	} else {
		processResult = PROCESSCONNECTIONDATAFILE_OK;
	}
	
	return processResult;
		
}