/// <summary>
/// Updates added members added to the database.
/// </summary>
/// <returns></returns>
private async Task UpdateUsers()
{
HttpGroupDetailsRepository repo = new HttpGroupDetailsRepository();
ICollection<GroupDetailsViewModel> listOfDetails = new List<GroupDetailsViewModel>();
var users = usersBindingSource.List.Cast<UsersViewModel>();
var isUser = users.Count(u => u.id == Globals.CurrentUser.id) == 0;
//checking if creator is added to the group
if (isUser) //if not add him and proper communicate
{
usersBindingSource.Add(Globals.CurrentUser);
MessageBox.Show("You removed yourself from the group, you were added to it automatically!","Warning",
MessageBoxButtons.OK,MessageBoxIcon.Information);
}
//adding new users
foreach (UsersViewModel user in usersBindingSource)
{
var newDetail = new GroupDetailsViewModel()
{
user_id = user.id,
group_id = currGroup.id
};
listOfDetails.Add(newDetail);
if (!(await repo.DetailExists(newDetail))) //if given connection does not exist then add it
{
var detailRepo = new HttpGroupDetailsRepository();
await detailRepo.AddOne(newDetail);
// currGroup.GroupDetails.Add(newDetail); //synchronize current group with db
}
}
HttpGroupsRepository groupsRepo = new HttpGroupsRepository();
var actualGroup = await groupsRepo.GetOne(currGroup.id); //actual group to synchronize from db
foreach (var detail in actualGroup.GroupDetails)
{
if (listOfDetails.Count(d => d.group_id == detail.group_id && d.user_id == detail.user_id) == 0) //if currGroup does not contain any of detail then delete it from db
{
await repo.DeleteOne(detail);
}
}
}
/// <summary>
/// Current user leaves the group.
/// </summary>
/// <returns></returns>
private async Task LeaveGroup()
{
var currDetail = currGroup.GroupDetails.FirstOrDefault(d => d.user_id == Globals.CurrentUser.id);
var repo = new HttpGroupDetailsRepository();
await repo.DeleteOne(currDetail);
}
