103 lines
4.5 KiB
Python
103 lines
4.5 KiB
Python
from typing import Any, Callable, Optional, Tuple, Union
|
|
|
|
from sqlalchemy import Column, func
|
|
from sqlalchemy.orm import scoped_session
|
|
|
|
from files.helpers.config.const import LEADERBOARD_LIMIT
|
|
|
|
from .badges import Badge
|
|
from .marsey import Marsey
|
|
from .user import User
|
|
from .userblock import UserBlock
|
|
|
|
class Leaderboard:
|
|
"""
|
|
Represents an request-context leaderboard. None of this is persisted yet,
|
|
although this is probably a good idea to do at some point.
|
|
"""
|
|
all_users = None
|
|
v_position = 0
|
|
v_value = None
|
|
v_appears_in_ranking = False
|
|
user_func = None
|
|
value_func = None
|
|
|
|
def __init__(self, header_name:str, table_header_name:str, html_id:str, table_column_name:str,
|
|
user_relative_url:Optional[str], query_function:Callable[..., Tuple[Any, Any, Any]],
|
|
criteria, v:User, value_func:Optional[Callable[[User], Union[int, Column]]], db:scoped_session, users, limit=LEADERBOARD_LIMIT):
|
|
self.header_name = header_name
|
|
self.table_header_name = table_header_name
|
|
self.html_id = html_id
|
|
self.table_column_name = table_column_name
|
|
self.user_relative_url = user_relative_url
|
|
self.limit = limit
|
|
lb = query_function(criteria, v, db, users, limit)
|
|
self.all_users = lb[0]
|
|
self.v_position = lb[1]
|
|
self.v_value = lb[2]
|
|
self.v_appears_in_ranking = self.v_position and self.v_position <= len(self.all_users)
|
|
if value_func:
|
|
self.user_func = lambda u:u
|
|
self.value_func = value_func
|
|
self.v_value = value_func(v)
|
|
else:
|
|
self.user_func = lambda u:u[0]
|
|
self.value_func = lambda u: u[1] or 0
|
|
|
|
@classmethod
|
|
def get_simple_lb(cls, order_by, v:User, db:scoped_session, users, limit:int):
|
|
leaderboard = users.order_by(order_by.desc()).limit(limit).all()
|
|
position = None
|
|
if v not in leaderboard:
|
|
sq = db.query(User.id, func.rank().over(order_by=order_by.desc()).label("rank")).subquery()
|
|
position = db.query(sq.c.id, sq.c.rank).filter(sq.c.id == v.id).limit(1).one()[1]
|
|
return (leaderboard, position, None)
|
|
|
|
@classmethod
|
|
def count_and_label(cls, criteria):
|
|
return func.count(criteria).label("count")
|
|
|
|
@classmethod
|
|
def rank_filtered_rank_label_by_desc(cls, criteria):
|
|
return func.rank().over(order_by=func.count(criteria).desc()).label("rank")
|
|
|
|
@classmethod
|
|
def get_badge_marsey_lb(cls, lb_criteria, v:User, db:scoped_session, users:Any, limit):
|
|
sq = db.query(lb_criteria, cls.count_and_label(lb_criteria), cls.rank_filtered_rank_label_by_desc(lb_criteria)).group_by(lb_criteria).subquery()
|
|
sq_criteria = None
|
|
if lb_criteria == Badge.user_id:
|
|
sq_criteria = User.id == sq.c.user_id
|
|
elif lb_criteria == Marsey.author_id:
|
|
sq_criteria = User.id == sq.c.author_id
|
|
else:
|
|
raise ValueError("This leaderboard function only supports Badge.user_id and Marsey.author_id")
|
|
|
|
leaderboard = db.query(User, sq.c.count).join(sq, sq_criteria).order_by(sq.c.count.desc())
|
|
position = db.query(User.id, sq.c.rank, sq.c.count).join(sq, sq_criteria).filter(User.id == v.id).one_or_none()
|
|
if position: position = (position[1], position[2])
|
|
else: position = (leaderboard.count() + 1, 0)
|
|
leaderboard = leaderboard.limit(limit).all()
|
|
return (leaderboard, position[0], position[1])
|
|
|
|
@classmethod
|
|
def get_blockers_lb(cls, lb_criteria, v:User, db:scoped_session, users:Any, limit):
|
|
if lb_criteria != UserBlock.target_id:
|
|
raise ValueError("This leaderboard function only supports UserBlock.target_id")
|
|
sq = db.query(lb_criteria, cls.count_and_label(lb_criteria)).group_by(lb_criteria).subquery()
|
|
leaderboard = db.query(User, sq.c.count).join(User, User.id == sq.c.target_id).order_by(sq.c.count.desc())
|
|
|
|
sq = db.query(lb_criteria, cls.count_and_label(lb_criteria), cls.rank_filtered_rank_label_by_desc(lb_criteria)).group_by(lb_criteria).subquery()
|
|
position = db.query(sq.c.rank, sq.c.count).join(User, User.id == sq.c.target_id).filter(sq.c.target_id == v.id).limit(1).one_or_none()
|
|
if not position: position = (leaderboard.count() + 1, 0)
|
|
leaderboard = leaderboard.limit(limit).all()
|
|
return (leaderboard, position[0], position[1])
|
|
|
|
@classmethod
|
|
def get_hat_lb(cls, lb_criteria, v:User, db:scoped_session, users:Any, limit):
|
|
leaderboard = db.query(User, func.count(lb_criteria)).join(lb_criteria).group_by(User).order_by(func.count(lb_criteria).desc())
|
|
sq = db.query(User.id, cls.count_and_label(lb_criteria), cls.rank_filtered_rank_label_by_desc(lb_criteria)).join(lb_criteria).group_by(User).subquery()
|
|
position = db.query(sq.c.rank, sq.c.count).filter(sq.c.id == v.id).limit(1).one_or_none()
|
|
if not position: position = (leaderboard.count() + 1, 0)
|
|
leaderboard = leaderboard.limit(limit).all()
|
|
return (leaderboard, position[0], position[1])
|