feat(multiplayer): support add/edit/remove playlist item

This commit is contained in:
MingxuanGame
2025-08-02 01:56:54 +00:00
parent 884a3f1cc2
commit 86e2313c50
5 changed files with 441 additions and 15 deletions

View File

@@ -1,7 +1,12 @@
from __future__ import annotations
from dataclasses import dataclass
import datetime
from typing import Annotated, Any, Literal
from typing import TYPE_CHECKING, Annotated, Any, Literal
from app.database.beatmap import Beatmap
from app.dependencies.database import engine
from app.exception import InvokeException
from .room import (
DownloadState,
@@ -21,7 +26,14 @@ from .signalr import (
)
from msgpack_lazer_api import APIMod
from pydantic import BaseModel, Field, field_serializer, field_validator
from pydantic import Field, field_serializer, field_validator
from sqlmodel.ext.asyncio.session import AsyncSession
if TYPE_CHECKING:
from app.signalr.hub import MultiplayerHub
HOST_LIMIT = 50
PER_USER_LIMIT = 3
class MultiplayerClientState(UserState):
@@ -161,8 +173,246 @@ class MultiplayerRoom(MessagePackArrayModel):
return msgpack_union_dump(v)
class ServerMultiplayerRoom(BaseModel):
class MultiplayerQueue:
def __init__(self, room: "ServerMultiplayerRoom", hub: "MultiplayerHub"):
self.server_room = room
self.hub = hub
self.current_index = 0
@property
def upcoming_items(self):
return sorted(
(item for item in self.room.playlist if not item.expired),
key=lambda i: i.order,
)
@property
def room(self):
return self.server_room.room
async def update_order(self):
from app.database import Playlist
match self.room.settings.queue_mode:
case QueueMode.ALL_PLAYERS_ROUND_ROBIN:
ordered_active_items = []
is_first_set = True
first_set_order_by_user_id = {}
active_items = [item for item in self.room.playlist if not item.expired]
active_items.sort(key=lambda x: x.id)
user_item_groups = {}
for item in active_items:
if item.owner_id not in user_item_groups:
user_item_groups[item.owner_id] = []
user_item_groups[item.owner_id].append(item)
max_items = max(
(len(items) for items in user_item_groups.values()), default=0
)
for i in range(max_items):
current_set = []
for user_id, items in user_item_groups.items():
if i < len(items):
current_set.append(items[i])
if is_first_set:
current_set.sort(key=lambda item: (item.order, item.id))
ordered_active_items.extend(current_set)
first_set_order_by_user_id = {
item.owner_id: idx
for idx, item in enumerate(ordered_active_items)
}
else:
current_set.sort(
key=lambda item: first_set_order_by_user_id.get(
item.owner_id, 0
)
)
ordered_active_items.extend(current_set)
is_first_set = False
for idx, item in enumerate(ordered_active_items):
item.order = idx
case _:
ordered_active_items = sorted(
(item for item in self.room.playlist if not item.expired),
key=lambda x: x.id,
)
async with AsyncSession(engine) as session:
for idx, item in enumerate(ordered_active_items):
if item.order == idx:
continue
item.order = idx
await Playlist.update(item, self.room.room_id, session)
await self.hub.playlist_changed(
self.server_room, item, beatmap_changed=False
)
async def update_current_item(self):
upcoming_items = self.upcoming_items
next_item = (
upcoming_items[0]
if upcoming_items
else max(
self.room.playlist,
key=lambda i: i.played_at or datetime.datetime.min,
)
)
self.current_index = self.room.playlist.index(next_item)
last_id = self.room.settings.playlist_item_id
self.room.settings.playlist_item_id = next_item.id
if last_id != next_item.id:
await self.hub.setting_changed(self.server_room, True)
async def add_item(self, item: PlaylistItem, user: MultiplayerRoomUser):
from app.database import Playlist
is_host = self.room.host and self.room.host.user_id == user.user_id
if self.room.settings.queue_mode == QueueMode.HOST_ONLY and not is_host:
raise InvokeException("You are not the host")
limit = HOST_LIMIT if is_host else PER_USER_LIMIT
if (
len(
list(
filter(
lambda x: x.owner_id == user.user_id,
self.room.playlist,
)
)
)
>= limit
):
raise InvokeException(f"You can only have {limit} items in the queue")
if item.freestyle and len(item.allowed_mods) > 0:
raise InvokeException("Freestyle items cannot have allowed mods")
async with AsyncSession(engine) as session:
async with session:
beatmap = await session.get(Beatmap, item.beatmap_id)
if beatmap is None:
raise InvokeException("Beatmap not found")
if item.checksum != beatmap.checksum:
raise InvokeException("Checksum mismatch")
# TODO: mods validation
item.owner_id = user.user_id
item.star = float(
beatmap.difficulty_rating
) # FIXME: beatmap use decimal
await Playlist.add_to_db(item, self.room.room_id, session)
self.room.playlist.append(item)
await self.hub.playlist_added(self.server_room, item)
await self.update_order()
await self.update_current_item()
async def edit_item(self, item: PlaylistItem, user: MultiplayerRoomUser):
from app.database import Playlist
if item.freestyle and len(item.allowed_mods) > 0:
raise InvokeException("Freestyle items cannot have allowed mods")
async with AsyncSession(engine) as session:
async with session:
beatmap = await session.get(Beatmap, item.beatmap_id)
if beatmap is None:
raise InvokeException("Beatmap not found")
if item.checksum != beatmap.checksum:
raise InvokeException("Checksum mismatch")
existing_item = next(
(i for i in self.room.playlist if i.id == item.id), None
)
if existing_item is None:
raise InvokeException(
"Attempted to change an item that doesn't exist"
)
if existing_item.owner_id != user.user_id and self.room.host != user:
raise InvokeException(
"Attempted to change an item which is not owned by the user"
)
if existing_item.expired:
raise InvokeException(
"Attempted to change an item which has already been played"
)
# TODO: mods validation
item.owner_id = user.user_id
item.star = float(beatmap.difficulty_rating)
item.order = existing_item.order
await Playlist.update(item, self.room.room_id, session)
# Update item in playlist
for idx, playlist_item in enumerate(self.room.playlist):
if playlist_item.id == item.id:
self.room.playlist[idx] = item
break
await self.hub.playlist_changed(
self.server_room,
item,
beatmap_changed=item.checksum != existing_item.checksum,
)
async def remove_item(self, playlist_item_id: int, user: MultiplayerRoomUser):
from app.database import Playlist
item = next(
(i for i in self.room.playlist if i.id == playlist_item_id),
None,
)
if item is None:
raise InvokeException("Item does not exist in the room")
# Check if it's the only item and current item
if item == self.current_item:
upcoming_items = [i for i in self.room.playlist if not i.expired]
if len(upcoming_items) == 1:
raise InvokeException("The only item in the room cannot be removed")
if item.owner_id != user.user_id and self.room.host != user:
raise InvokeException(
"Attempted to remove an item which is not owned by the user"
)
if item.expired:
raise InvokeException(
"Attempted to remove an item which has already been played"
)
async with AsyncSession(engine) as session:
await Playlist.delete_item(item.id, self.room.room_id, session)
self.room.playlist.remove(item)
self.current_index = self.room.playlist.index(self.upcoming_items[0])
await self.update_order()
await self.update_current_item()
await self.hub.playlist_removed(self.server_room, item.id)
@property
def current_item(self):
"""Get the current playlist item"""
current_id = self.room.settings.playlist_item_id
return next(
(item for item in self.room.playlist if item.id == current_id),
None,
)
@dataclass
class ServerMultiplayerRoom:
room: MultiplayerRoom
category: RoomCategory
status: RoomStatus
start_at: datetime.datetime
queue: MultiplayerQueue | None = None