import enum
import uuid
from datetime import datetime

from sqlalchemy import Boolean, DateTime, Enum, ForeignKey, String, Uuid, func
from sqlalchemy.orm import Mapped, mapped_column

from app.database import Base


class CategoryType(str, enum.Enum):
    income = "income"
    expense = "expense"


class Category(Base):
    __tablename__ = "categories"

    id: Mapped[uuid.UUID] = mapped_column(Uuid, primary_key=True, default=uuid.uuid4)
    user_id: Mapped[uuid.UUID] = mapped_column(
        Uuid, ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True
    )
    name: Mapped[str] = mapped_column(String(50), nullable=False)
    type: Mapped[CategoryType] = mapped_column(
        Enum(CategoryType, name="categorytype", native_enum=False, length=10),
        nullable=False,
    )
    color: Mapped[str | None] = mapped_column(String(7), nullable=True)
    icon: Mapped[str | None] = mapped_column(String(50), nullable=True)
    is_default: Mapped[bool] = mapped_column(
        Boolean, nullable=False, default=False, server_default="false"
    )
    deleted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=False), nullable=True)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=False), nullable=False, server_default=func.now()
    )