/*this stores the last request and is responsible for maintaining synchronisation between memory
* and DB views.
*/
public long addFriendRequest(
long friend_id)
{
bool was_blocked_before = false;
FriendRelation tmp_fr = null;
if (user_list.ContainsKey(us.user_profile.id))
{
FriendMap fmap = user_list[us.user_profile.id];
if (fmap.hasFriendRelation(friend_id))
{
tmp_fr = fmap.getFriendRelation(friend_id);
if (tmp_fr.status == FriendRelation.STATUS_ACCEPTED)
{
return FRIEND_REQUEST_ALREADY_FRIENDS;//user already has friend relation for this friend.
}
else if (tmp_fr.status == FriendRelation.STATUS_PENDING)
{
return FRIEND_REQUEST_ALREADY_REQUESTED;
}
else if ((us.user_profile.id == tmp_fr.id_a && tmp_fr.status == FriendRelation.STATUS_BLOCKED_B)
|| us.user_profile.id == tmp_fr.id_b && tmp_fr.status == FriendRelation.STATUS_BLOCKED_A)
{
return FRIEND_REQUEST_BLOCKED;
}
else if ((us.user_profile.id == tmp_fr.id_a && tmp_fr.status == FriendRelation.STATUS_BLOCKED_A)
|| us.user_profile.id == tmp_fr.id_b && tmp_fr.status == FriendRelation.STATUS_BLOCKED_B)
{
was_blocked_before = true;
}
}
}
DateTime datetime = DateTime.Now;
MyFriendTask mft = new MyFriendTask(us, datetime, friend_id);
FriendRelation fr = null;
if (was_blocked_before)
{
mft.ApproveFriendRequestDBThreadTask();
fr = tmp_fr;
fr.setStatus(FriendRelation.STATUS_ACCEPTED);
FriendMap fmap = user_list[us.user_profile.id];
if (fmap != null && fmap.hasFriendRelation(friend_id))
{
fmap.removeFriendRelation(friend_id);
}
}
else
{
mft.AddFriendRequestDBThreadTask();
fr = new FriendRelation(
-1,
us.user_profile.id,
friend_id,
FriendRelation.STATUS_PENDING,
datetime,
new DateTime());
}
if (!user_list.ContainsKey(us.user_profile.id))
{
user_list.Add(us.user_profile.id, new FriendMap(us));
}
FriendMap friend_map = user_list[us.user_profile.id];
friend_map.addFriendRequest(friend_id, fr);//update status in memory.
//if the friend entry does not exist, it means the friend is not online then we leave the in memory loading to happen only when user comes online (lazy loading).
if (user_list.ContainsKey(friend_id))
{
//if was blocked before there is an entry before. so remove
if (was_blocked_before)
{
FriendMap tmp_fm = (user_list[friend_id]);
if (tmp_fm != null && tmp_fm.hasFriendRelation(us.user_profile.id))
{
tmp_fm.removeFriendRelation(us.user_profile.id);
}
}
(user_list[friend_id]).addFriendRequest(us.user_profile.id, fr);//update status in memory.
}
if (was_blocked_before)
return FRIEND_REQUEST_BLOCKED_APPROVED;
return 0;
}
public long deleteFriendRequest(
long friend_id)
{
FriendMap fmap;
if (user_list.ContainsKey(us.user_profile.id))
{
fmap = user_list[us.user_profile.id];
if (!fmap.hasFriendRelation(friend_id))
{
return -1;//there is no friend request to approve
}
DateTime datetime = DateTime.Now;
MyFriendTask mft = new MyFriendTask(us, datetime, friend_id);
mft.DeleteFriendRequestDBThreadTask();
(user_list[us.user_profile.id]).removeFriendRelation(friend_id);
if ((user_list.ContainsKey(friend_id) && (user_list[friend_id]).hasFriendRelation(us.user_profile.id)))
{
user_list[friend_id].removeFriendRelation(us.user_profile.id);
}
return 0;
}
return -2;
}
/*this stores the last request and is responsible for maintaining synchronisation between memory
* and DB views.
*/
public long rejectFriendRequest(
long friend_id)
{
FriendMap fmap;
if (user_list.ContainsKey(us.user_profile.id))
{
fmap = user_list[us.user_profile.id];
if (!fmap.hasFriendRelation(friend_id))
{
return -1;//there is no friend request to reject
}
DateTime datetime = DateTime.Now;
MyFriendTask mft = new MyFriendTask(us, datetime, friend_id);
mft.RejectFriendRequestDBThreadTask();
FriendRelation fr = (user_list[us.user_profile.id]).getFriendRelation(friend_id);
fr.setStatus(FriendRelation.STATUS_ACCEPTED); //update status in memory.
fr.setDateTimeAccepted(datetime); //update status in memory.
//the friend is online so we update both
if ((user_list.ContainsKey(friend_id) && (user_list[friend_id]).hasFriendRelation(us.user_profile.id)))
{
FriendRelation fr2 = (user_list[friend_id]).getFriendRelation(us.user_profile.id);
fr2.setStatus(FriendRelation.STATUS_ACCEPTED); //update status in memory.
fr2.setDateTimeAccepted(datetime); //update status in memory.
}
return 0;
}
return -2;
}
/* this clears the user's history
*/
public long blockFriend(
long friend_id)
{
FriendMap fmap;
if (user_list.ContainsKey(us.user_profile.id))
{
fmap = user_list[us.user_profile.id];
if (!fmap.hasFriendRelation(friend_id))
{
return -1;//there is no friend request to approve
}
DateTime datetime = DateTime.Now;
MyFriendTask mft = new MyFriendTask(us, datetime, friend_id);
mft.BlockFriendRequestDBThreadTask();
FriendRelation fr = (user_list[us.user_profile.id]).getFriendRelation(friend_id);
if (fr.id_a == us.user_profile.id)
fr.setStatus(FriendRelation.STATUS_BLOCKED_A); //update status in memory.
else
fr.setStatus(FriendRelation.STATUS_BLOCKED_B); //update status in memory.
if ((user_list.ContainsKey(friend_id) && (user_list[friend_id]).hasFriendRelation(us.user_profile.id)))
{
FriendRelation fr2 = (user_list[friend_id]).getFriendRelation(us.user_profile.id);
if(fr.id_a == us.user_profile.id)
fr2.setStatus(FriendRelation.STATUS_BLOCKED_A); //update status in memory.
else
fr2.setStatus(FriendRelation.STATUS_BLOCKED_B); //update status in memory.
}
}
return -2;
}