"""User model for profile management.

Stores admin and regular 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 login identifier.
        password_hash: bcrypt-hashed password (admin only initially).
        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.
        is_admin: Whether this user has admin privileges.
        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)
    password_hash: str = Field(default="")
    display_name: str = Field(default="")
    height: Optional[str] = Field(default=None)
    weight: Optional[str] = Field(default=None)
    goals: Optional[str] = Field(default=None)
    is_admin: bool = Field(default=False)
    created_at: datetime = Field(default_factory=datetime.utcnow)
    updated_at: datetime = Field(default_factory=datetime.utcnow)