public void ExecuteMoveUserToGroup(string userScreenName, string targetGroupName)
{
// Find current group for screenName
var groupModel = GroupModelList
.FirstOrDefault(x =>
x.UserModelList.Any(y =>
y.ScreenName == userScreenName));
if (groupModel != null)
{
// Remove user from user list and update GroupScreenNamelList
var userModel = groupModel.UserModelList.First(x => x.ScreenName == userScreenName);
groupModel.UserModelList.Remove(userModel);
groupModel.GroupScreenNamelList.RemoveAll(x => x == userScreenName);
// Add user to target group and update GroupScreenNamelList
groupModel = GroupModelList.First(x => x.GroupName == targetGroupName);
groupModel.UserModelList.Add(userModel);
userModel.GroupModel = groupModel;
groupModel.GroupScreenNamelList.Add(userScreenName);
// Update AvailableMoveToGroupList and rebind group model list
var groupModelList = GroupModelList.ToList();
UpdateAvailableMoveToGroupList(userModel, groupModelList);
// Save groups every time a move occurs
SaveGroupsToFile(groupModelList);
// Update UI
GroupModelList = groupModelList;
}
}
private void ExecuteRefreshCommand()
{
if (_loginUser != null)
{
var groupModelList = GroupModelList.ToList();
groupModelList.ForEach(x => x.UserModelList.Clear());
RefreshFriends(groupModelList);
}
}
private void ExecuteGenerateGroupsCommand()
{
if (_loginUser != null)
{
var predefinedGroupNames = new string[] { "Tech", "Entertainment", "News" };
bool insertedGroup = false;
var groupModelList = GroupModelList.ToList();
foreach (var groupName in predefinedGroupNames)
{
if (!groupModelList.Any(x => x.GroupName == groupName))
{
int insertAtIndex = groupModelList.Count - 1;
groupModelList.Insert(insertAtIndex, new GroupModel(groupName, GetGroupImagePath(groupName)));
insertedGroup = true;
}
}
if (insertedGroup)
{
SaveGroupsToFile(groupModelList);
GroupModelList = groupModelList;
foreach (var groupModel in groupModelList)
{
foreach (var userModel in groupModel.UserModelList)
{
UpdateAvailableMoveToGroupList(userModel, groupModelList);
}
}
}
GenerateGroupsCommandNotExecuted = false;
OnPropertyChanged(nameof(GenerateGroupsCommandNotExecuted));
}
}