import uuid
from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, String, func
from sqlalchemy.dialects.postgresql import JSONB
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.models.base import Base


class CustomTheme(Base):
    __tablename__ = "custom_themes"

    id: Mapped[uuid.UUID] = mapped_column(primary_key=True, default=uuid.uuid4)
    user_id: Mapped[uuid.UUID] = mapped_column(ForeignKey("users.id"), index=True, nullable=False)
    name: Mapped[str] = mapped_column(String(50), nullable=False)
    # Shape is CustomThemeColors (backend/app/schemas/custom_theme.py) -- the
    # same 12 tokens + color_scheme a preset overrides in themes.css.
    colors: Mapped[dict] = mapped_column(JSONB, nullable=False)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )

    user = relationship("User", foreign_keys=[user_id])