"""PositionRating model - pure data container for player defensive ratings.

This model contains only data fields and relationships. No business logic
has been extracted as this was already a pure data model.
"""

import datetime
from sqlmodel import SQLModel, Field, Relationship, UniqueConstraint
from sqlalchemy import Column, BigInteger


class PositionRatingBase(SQLModel):
    """Base position rating data fields."""
    __table_args__ = (UniqueConstraint("player_id", "variant", "position"),)

    id: int | None = Field(default=None, sa_column=Column(BigInteger(), primary_key=True, autoincrement=True))
    player_id: int = Field(index=True)  # TODO: Add foreign_key='player.id' when Player model is migrated
    variant: int = Field(default=0, index=True)
    position: str = Field(index=True)
    innings: int = Field(default=0)
    range: int = Field(default=5)
    error: int = Field(default=0)
    arm: int | None = Field(default=None)
    pb: int | None = Field(default=None)
    overthrow: int | None = Field(default=None)
    created: datetime.datetime = Field(default_factory=datetime.datetime.now, nullable=True)


class PositionRating(PositionRatingBase, table=True):
    """PositionRating model with relationships."""
    # Note: Relationship to Player commented out until Player model is migrated
    # player: 'Player' = Relationship(back_populates='positions')
    pass