from datetime import datetime

from sqlalchemy import Boolean, DateTime, ForeignKey, String, Text
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.db.base import Base


class DocumentNamingField(Base):
    __tablename__ = "document_naming_fields"

    id: Mapped[int] = mapped_column(primary_key=True, index=True)
    document_id: Mapped[int] = mapped_column(ForeignKey("documents.id"), nullable=False, unique=True, index=True)

    naming_entity: Mapped[str | None] = mapped_column(Text, nullable=True)
    naming_account_last4: Mapped[str | None] = mapped_column(String(16), nullable=True)
    naming_type: Mapped[str | None] = mapped_column(String(64), nullable=True)
    naming_date: Mapped[str | None] = mapped_column(String(16), nullable=True)
    naming_date_precision: Mapped[str | None] = mapped_column(String(16), nullable=True)

    naming_description: Mapped[str | None] = mapped_column(Text, nullable=True)
    naming_reference_number: Mapped[str | None] = mapped_column(Text, nullable=True)
    naming_variant: Mapped[str | None] = mapped_column(String(64), nullable=True)

    naming_schema_version: Mapped[str] = mapped_column(String(32), nullable=False, default="v1")
    naming_locked: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)

    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, nullable=False)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime,
        default=datetime.utcnow,
        onupdate=datetime.utcnow,
        nullable=False,
    )

    document: Mapped["Document"] = relationship(back_populates="naming_fields")