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pubsub.lazy_guild: add implementation for pres_update 

- utils: fix index_by_func
This commit is contained in:
Luna Mendes 2018-11-07 18:52:50 -03:00
parent c212cbd392
commit bd9c4cb26c
4 changed files with 140 additions and 41 deletions
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6
litecord/gateway/websocket.py
View File

@ -710,7 +710,7 @@ class GatewayWebsocket:
list_op = 'SYNC' | 'INVALIDATE' | 'INSERT' | 'UPDATE' | 'DELETE'
list_data = {
'id': "everyone" // ??
'id': channel_id | 'everyone',
'guild_id': guild_id,
'ops': [
@ -723,10 +723,10 @@ class GatewayWebsocket:
// exists if op = 'SYNC'
'items': sync_item[],
// exists if op = 'INSERT' or 'DELETE'
// exists if op == 'INSERT' | 'DELETE' | 'UPDATE'
'index': num,
// exists if op = 'INSERT'
// exists if op == 'INSERT' | 'UPDATE'
'item': sync_item,
}
],

8
litecord/presence.py
View File

@ -113,9 +113,11 @@ class PresenceManager:
for member_list in lists:
session_ids = await member_list.pres_update(
int(member['user']['id']),
member['roles'],
state['status'],
game
{
'roles': member['roles'],
'status': state['status'],
'game': game
}
)
log.debug('Lazy Dispatch to {}',

165
litecord/pubsub/lazy_guild.py
View File

@ -48,10 +48,40 @@ class MemberList:
Yields a tuple containing :class:`GroupInfo` and
the List[Presence] for the group.
"""
if not self.groups:
return
for group in self.groups:
yield group, self.data[group.gid]
@dataclass
class Operation:
"""Represents a member list operation."""
list_op: str
params: Dict[str, Any]
@property
def to_dict(self) -> dict:
res = {
'op': self.list_op
}
if self.list_op == 'SYNC':
res['items'] = self.params['items']
if self.list_op in ('SYNC', 'INVALIDATE'):
res['range'] = self.params['range']
if self.list_op in ('INSERT', 'DELETE', 'UPDATE'):
res['index'] = self.params['index']
if self.list_op in ('INSERT', 'UPDATE'):
res['item'] = self.params['item']
return res
def _to_simple_group(presence: dict) -> str:
"""Return a simple group (not a role), given a presence."""
return 'offline' if presence['status'] == 'offline' else 'online'
@ -111,6 +141,13 @@ class GuildMemberList:
"""Get the global :class:`StateManager` instance."""
return self.main.app.state_manager
@property
def list_id(self):
"""get the id of the member list."""
return ('everyone'
if self.channel_id == self.guild_id
else str(self.channel_id))
def _set_empty_list(self):
"""Set the member list as being empty."""
self.list = MemberList(None, None, None, None)
@ -311,7 +348,7 @@ class GuildMemberList:
"""Subscribe a shard to the member list."""
await self._init_check()
async def unsub(self, session_id: str):
def unsub(self, session_id: str):
"""Unsubscribe a shard from the member list"""
try:
self.state.pop(session_id)
@ -326,6 +363,41 @@ class GuildMemberList:
if not self.state:
self._set_empty_list()
def get_state(self, session_id: str):
state = self.state_man.fetch_raw(session_id)
if not state:
self.unsub(session_id)
return
return state
async def _dispatch_sess(self, session_ids: List[str],
operations: List[Operation]):
# construct the payload to dispatch
payload = {
'id': self.list_id,
'guild_id': str(self.guild_id),
'groups': [
{
'count': len(presences),
'id': group.gid
} for group, presences in self.list
],
'ops': [
operation.to_dict
for operation in operations
]
}
states = map(self.get_state, session_ids)
for state in (s for s in states if s is not None):
await state.ws.dispatch(
'GUILD_MEMBER_LIST_UPDATE', payload)
async def shard_query(self, session_id: str, ranges: list):
"""Send a GUILD_MEMBER_LIST_UPDATE event
for a shard that is querying about the member list.
@ -342,9 +414,7 @@ class GuildMemberList:
# a guild list with a channel id of the guild
# represents the 'everyone' global list.
list_id = ('everyone'
if self.channel_id == self.guild_id
else str(self.channel_id))
list_id = self.list_id
# if everyone can read the channel,
# we direct the request to the 'everyone' gml instance
@ -365,25 +435,7 @@ class GuildMemberList:
await self._init_check()
# make sure this is a sane state
state = self.state_man.fetch_raw(session_id)
if not state:
await self.unsub(session_id)
return
reply = {
'guild_id': str(self.guild_id),
'id': list_id,
'groups': [
{
'count': len(presences),
'id': group.gid
} for group, presences in self.list
],
'ops': [],
}
ops = []
for start, end in ranges:
itemcount = end - start
@ -394,19 +446,64 @@ class GuildMemberList:
self.state[session_id].add((start, end))
reply['ops'].append({
'op': 'SYNC',
ops.append(Operation('SYNC', {
'range': [start, end],
'items': self.items[start:end],
'items': self.items[start:end]
}))
await self._dispatch_sess([session_id], ops)
async def pres_update(self, user_id: int,
partial_presence: Dict[str, Any]):
"""Update a presence inside the member listlist."""
await self._init_check()
for _group, presences in self.list:
p_idx = index_by_func(
lambda p: p['user']['id'] == str(user_id),
presences)
if not p_idx:
continue
presences[p_idx].update(partial_presence)
item_index = index_by_func(
lambda p: p.get('user', {}).get('id') == str(user_id),
self.items
)
pprint.pprint(self.items)
if not item_index:
log.warning('lazy guild got invalid pres update uid={}',
user_id)
return []
item = self.items[item_index]
def _is_in(sess_id):
ranges = self.state[sess_id]
for range_start, range_end in ranges:
if range_start <= item_index <= range_end:
return True
return False
session_ids = filter(_is_in, self.state.keys())
await self._dispatch_sess(
session_ids,
[
Operation('UPDATE', {
'index': item_index,
'item': item,
})
]
)
# the first GUILD_MEMBER_LIST_UPDATE for a shard
# is dispatched here.
await state.ws.dispatch('GUILD_MEMBER_LIST_UPDATE', reply)
async def pres_update(self, user_id: int, roles: List[str],
status: str, game: dict) -> List[str]:
return list(self.state)
return list(session_ids)
async def dispatch(self, event: str, data: Any):
"""Modify the member list and dispatch the respective
@ -473,4 +570,4 @@ class LazyGuildDispatcher(Dispatcher):
async def unsub(self, chan_id, session_id):
gml = await self.get_gml(chan_id)
await gml.unsub(session_id)
gml.unsub(session_id)

2
litecord/utils.py
View File

@ -32,7 +32,7 @@ def dict_get(mapping, key, default):
def index_by_func(function, indexable: iter) -> int:
"""Search in an idexable and return the index number
for an iterm that has func(item) = True."""
for index, item in indexable:
for index, item in enumerate(indexable):
if function(item):
return index