public static ChannelUser GetChannelUser(ChannelUserVm channelUser)
{
return(new ChannelUser
{
ChannelId = channelUser.ChannelId.GetValueOrDefault(),
ChannelUserRole = channelUser.ChannelUserRole.GetValueOrDefault(),
Deleted = channelUser.Deleted.GetValueOrDefault(),
UserId = channelUser.UserId,
Banned = channelUser.Banned.GetValueOrDefault(),
IsMuted = channelUser.IsMuted.GetValueOrDefault()
});
}
public static ChannelUserDto GetChannelUserDto(ChannelUserVm channelUserVm)
{
if (channelUserVm == null)
{
return(null);
}
return(new ChannelUserDto
{
Banned = channelUserVm.Banned.GetValueOrDefault(),
ChannelId = channelUserVm.ChannelId.GetValueOrDefault(),
ChannelUserRole = channelUserVm.ChannelUserRole.GetValueOrDefault(),
Deleted = channelUserVm.Deleted.GetValueOrDefault(),
IsMuted = channelUserVm.IsMuted.GetValueOrDefault(),
SubscribedTime = channelUserVm.SubscribedTime.GetValueOrDefault(),
UserId = channelUserVm.UserId
});
}
public async Task <List <ChannelUserVm> > EditChannelUsersAsync(List <ChannelUserVm> channelUsers, long editorUserId, long channelId)
{
using (MessengerDbContext context = contextFactory.Create())
{
ExpressionStarter <ChannelUser> channelUsersContidion = PredicateBuilder.New <ChannelUser>();
channelUsersContidion = channelUsers.Aggregate(channelUsersContidion,
(current, value) => current.Or(opt => opt.ChannelId == value.ChannelId && opt.UserId == value.UserId));
Channel currentChannel = await context.Channels.FirstOrDefaultAsync(opt => opt.ChannelId == channelId && !opt.Deleted).ConfigureAwait(false);
if (currentChannel == null)
{
throw new ObjectDoesNotExistsException("Channel not found.");
}
ChannelUser editorChannelUser = await context.ChannelUsers
.AsNoTracking()
.FirstOrDefaultAsync(opt =>
opt.ChannelId == channelId &&
opt.UserId == editorUserId)
.ConfigureAwait(false);
List <ChannelUser> editableChannelUsers = await context.ChannelUsers
.Where(channelUsersContidion)
.ToListAsync()
.ConfigureAwait(false);
if (editorChannelUser == null)
{
throw new PermissionDeniedException();
}
if (editableChannelUsers == null || editableChannelUsers.Count < channelUsers.Count())
{
throw new ObjectDoesNotExistsException("Editable users are not in channel.");
}
if (editorChannelUser.ChannelUserRole == ChannelUserRole.Subscriber &&
channelUsers.Count() != 1 &&
channelUsers.ElementAt(0).UserId != editorChannelUser.UserId ||
editorChannelUser.Banned)
{
throw new PermissionDeniedException();
}
editableChannelUsers.ForEach(channelUser =>
{
ChannelUserVm edited = channelUsers.FirstOrDefault(opt => opt.UserId == channelUser.UserId);
if (editorChannelUser.ChannelUserRole > channelUser.ChannelUserRole)
{
channelUser.ChannelUserRole = edited.ChannelUserRole < editorChannelUser.ChannelUserRole && editorChannelUser.UserId != channelUser.UserId
? edited.ChannelUserRole.GetValueOrDefault()
: channelUser.ChannelUserRole;
channelUser.Deleted = channelUser.ChannelUserRole != ChannelUserRole.Creator && edited.Deleted.GetValueOrDefault(channelUser.Deleted);
channelUser.Banned = channelUser.ChannelUserRole != ChannelUserRole.Creator && edited.Banned.GetValueOrDefault(channelUser.Banned);
}
else if (editorChannelUser.UserId == channelUser.UserId)
{
channelUser.ChannelUserRole = edited.ChannelUserRole < channelUser.ChannelUserRole
? edited.ChannelUserRole.GetValueOrDefault()
: channelUser.ChannelUserRole;
channelUser.Deleted = edited.Deleted.GetValueOrDefault(false);
}
else
{
throw new PermissionDeniedException();
}
});
context.ChannelUsers.UpdateRange(editableChannelUsers);
if (channelUsers.Any(opt => opt.Deleted.GetValueOrDefault() || opt.Banned.GetValueOrDefault()))
{
var query = from channel in context.Channels
join channelUser in context.ChannelUsers on channel.ChannelId equals channelUser.ChannelId
join user in context.Users on channelUser.UserId equals user.Id
where channel.ChannelId == channelId && !channelUser.Banned && !channelUser.Deleted
select user.NodeId;
var channelNodesId = (await query.ToListAsync().ConfigureAwait(false)).Distinct();
currentChannel.NodesId = channelNodesId.Select(id => id.GetValueOrDefault()).ToArray();
context.Channels.Update(currentChannel);
}
await context.SaveChangesAsync().ConfigureAwait(false);
return(ChannelConverter.GetChannelUsers(editableChannelUsers));
}
}
