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from app import app, db
from typing import Tuple, Sequence
from random import shuffle, sample
from app.model import Player, DisplayPlayer, Court, DisplayGame, DisplayTeam
def _shuffle_two_lists(a: list, b: list) -> Tuple[list, list]:
indices = list(range(len(a)))
shuffle(indices)
a = [a[index] for index in indices]
b = [b[index] for index in indices]
return a, b
def _pick_from_list_after_sorting_other(a: list, b: list[int]) -> list:
indices = [i[0] for i in sorted(enumerate(b), key=lambda x: x[1])]
return [a[index] for index in indices]
def sample_list(indices: list, cost: list[int], count=None) -> list:
if count is None:
count = len(indices)
indices, cost = _shuffle_two_lists(indices, cost)
indices = _pick_from_list_after_sorting_other(indices, cost)[:count]
return indices
def _normalize_skill(level: int, new_max: int) -> int:
new_level = round((new_max - 1) * (level / app.config["MAX_PLAYER_LEVEL"])) + 1
return new_level
def select_players(players: Sequence[Player], count: int) -> list[Player]:
identifiers = [player.id for player in players]
play_count = [int(player.id) for player in players]
ids = sample_list(identifiers, play_count, count)
selected_players = [player for player in players if player.id in ids]
return selected_players
def group_by_four(players: list[Player], new_max: int) -> list[list[Player]]:
identifiers = [player.id for player in players]
player_levels = [_normalize_skill(int(player.level), new_max) for player in players]
identifiers = sample_list(identifiers, player_levels)
court_players = []
for i in range(0, len(players), app.config["PLAYERS_PER_COURT"]):
court_ids = identifiers[i : i + app.config["PLAYERS_PER_COURT"]]
selected_players = [player for player in players if player.id in court_ids]
court_players.append(selected_players)
return court_players
def separate_teams_and_players(
players: Sequence[Player],
) -> tuple[dict[int, list[Player]], list[Player]]:
unique_team_id = {player.team for player in players}
grouped_players_by_team = {team_id: [] for team_id in unique_team_id}
for player in players:
team = player.team
grouped_players_by_team[team].append(player)
active_teams = {}
players_without_team = []
for team_id in grouped_players_by_team:
if team_id == 0:
players_without_team += [
player for player in grouped_players_by_team[team_id]
]
else:
if len(grouped_players_by_team[team_id]) >= 4:
active_teams[team_id] = grouped_players_by_team[team_id]
else:
players_without_team += [
player for player in grouped_players_by_team[team_id]
]
return active_teams, players_without_team
def get_placeholder_games(courts: list[Court], name: str) -> list[DisplayGame]:
p = db.session.query(Player).where(Player.first_name == name).first()
if p is None:
raise ValueError(f"Database isn't initialized.")
dummy_team = DisplayTeam(DisplayPlayer(p), DisplayPlayer(p))
games = [DisplayGame(court.id, dummy_team, dummy_team) for court in courts]
return games
def get_team_games(
courts: list[Court], teams: dict[int, list[Player]]
) -> list[DisplayGame]:
games = []
for court, (_, players) in zip(courts, teams.items()):
players = sample(players, app.config["PLAYERS_PER_COURT"])
players.sort(key=lambda x: x.level, reverse=True)
dp = [DisplayPlayer(p) for p in players]
games.append(
DisplayGame(court.id, DisplayTeam(dp[0], dp[3]), DisplayTeam(dp[1], dp[2]))
)
return games
def get_shuffle_games(
courts: list[Court], players: Sequence[Player], total_levels: int
) -> list[DisplayGame]:
required_player_count = len(courts) * app.config["PLAYERS_PER_COURT"]
selected_players = select_players(players, required_player_count)
court_players = group_by_four(selected_players, total_levels)
games = []
for court, players in zip(courts, court_players):
dp = [DisplayPlayer(p) for p in players]
games.append(
DisplayGame(court.id, DisplayTeam(dp[0], dp[3]), DisplayTeam(dp[1], dp[2]))
)
return games
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