public async Task AddPlayersFromFile(string fileText, ObservableCollection <UserPlanet> playersPlanets,
DateTime fileCreationDate)
{
var planetLocalization = "0:0";
var isGalaxyAndSystemReaded = false;
var positionLine = "";
var errorCount = 0;
var stringReader = new StringReader(fileText);
while (true)
{
_actualLine = stringReader.ReadLine();
if (_actualLine != null && _actualLine.Contains("System ") && !isGalaxyAndSystemReaded)
{
planetLocalization = await readPlanetLocalization(_actualLine);
isGalaxyAndSystemReaded = true;
var tempUserPlanet = new UserPlanet("temp", planetLocalization, fileCreationDate);
await DeleteOldSolarSystems(tempUserPlanet, playersPlanets);
}
if (isGalaxyAndSystemReaded)
{
positionLine = GetLineWithPosition(stringReader, positionLine);
}
if (_startToReadUserData)
{
var userName = readUserName(_actualLine);
var position = GetPositionFromLine(positionLine);
var userPlanet = new UserPlanet(userName, planetLocalization, position, fileCreationDate)
{
PlanetId = 1
};
lock (playersPlanets)
{
playersPlanets.Add(userPlanet);
}
_startToReadUserData = false;
}
if (_actualLine == null)
{
errorCount++;
if (errorCount > 10)
{
break;
}
}
}
}
private async Task DeleteOldSolarSystems(UserPlanet tempUserPlanet,
ObservableCollection <UserPlanet> playersPlanets)
{
lock (playersPlanets)
{
var solarSystemsToRemove = playersPlanets.Where(x =>
x.Galaxy == tempUserPlanet.Galaxy && x.SolarSystem == tempUserPlanet.SolarSystem).ToList();
foreach (var item in solarSystemsToRemove)
{
playersPlanets.Remove(item);
}
}
}
private DateTime GetSolarSystemCreationDate(UserPlanet tempUserPlanet,
ObservableCollection <UserPlanet> playersPlanets)
{
try
{
var solarSystemCreationDate = playersPlanets.First(x =>
x.Galaxy == tempUserPlanet.Galaxy && x.SolarSystem == tempUserPlanet.SolarSystem).CreationDate;
return(solarSystemCreationDate);
}
catch (ArgumentNullException)
{
return(new DateTime(5, 1, 1, 1, 1, 1));
}
catch (InvalidOperationException)
{
return(new DateTime(5, 1, 1, 1, 1, 1));
}
}