Secret Santa: players info

players_info.py

# /usr/bin/python3
"""Players info."""
import json
from dataclasses import dataclass, field
from typing import Iterator, List


@dataclass
class PlayerInfo:
    email: str
    first_name: str
    family_name: str = ""
    include: List[str] = field(default_factory=list)
    exclude: List[str] = field(default_factory=list)

    @property
    def name(self) -> str:
        return f"{self.first_name} {self.family_name}".strip()


@dataclass
class ListOfPlayerInfo:
    players: List[PlayerInfo]

    def __len__(self) -> int:
        return len(self.players)

    def __iter__(self) -> Iterator[PlayerInfo]:
        return self.players.__iter__()

    def __getitem__(self, key: int) -> PlayerInfo:
        return self.players[key]

    @staticmethod
    def load(path: str) -> 'ListOfPlayerInfo':
        with open(path, "r", encoding="utf-8") as _f:
            return ListOfPlayerInfo([PlayerInfo(**info)
                                     for info in json.load(_f)["players"]])