"""User model for profile management.

Stores user profiles with physical stats and goals.
"""

from datetime import datetime
from typing import Optional

from sqlmodel import Field, SQLModel


class User(SQLModel, table=True):
    """A user profile in the system.

    Attributes:
        id: Primary key, auto-incremented.
        username: Unique identifier.
        display_name: Human-readable name shown in the UI.
        height: User's height as a string (e.g., "6'0\"").
        weight: User's weight as a string (e.g., "260 lbs").
        goals: Free-text training goals.
        created_at: Timestamp when the record was created.
        updated_at: Timestamp of the last update.
    """

    __tablename__ = "users"

    id: Optional[int] = Field(default=None, primary_key=True)
    username: str = Field(index=True, unique=True)
    display_name: str = Field(default="")
    height: Optional[str] = Field(default=None)
    weight: Optional[str] = Field(default=None)
    goals: Optional[str] = Field(default=None)
    created_at: datetime = Field(default_factory=datetime.utcnow)
    updated_at: datetime = Field(default_factory=datetime.utcnow)