"""ScoringConfig — single-row table for persisted scoring weights."""

# Import uuid
import uuid

# Import Column, DateTime, Float, ForeignKey, func from sqlalchemy
from sqlalchemy import Column, DateTime, Float, ForeignKey, func

# Import UUID from sqlalchemy.dialects.postgresql
from sqlalchemy.dialects.postgresql import UUID

# Import Base from app.database
from app.database import Base


# Define class ScoringConfig
class ScoringConfig(Base):
    """Single-row table persisting the active scoring weight configuration."""

    # Assign __tablename__ = "scoring_config"
    __tablename__ = "scoring_config"

    # Assign id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    # Assign weight_tests = Column(Float, nullable=False, default=40.0)
    weight_tests = Column(Float, nullable=False, default=40.0)
    # Assign weight_detection_rules = Column(Float, nullable=False, default=25.0)
    weight_detection_rules = Column(Float, nullable=False, default=25.0)
    # Assign weight_d3fend = Column(Float, nullable=False, default=15.0)
    weight_d3fend = Column(Float, nullable=False, default=15.0)
    # Assign weight_recency = Column(Float, nullable=False, default=10.0)
    weight_recency = Column(Float, nullable=False, default=10.0)
    # Assign weight_severity = Column(Float, nullable=False, default=10.0)
    weight_severity = Column(Float, nullable=False, default=10.0)
    # Assign updated_by = Column(
    updated_by = Column(
        UUID(as_uuid=True),
        ForeignKey("users.id", ondelete="SET NULL"),
        # Keyword argument: nullable
        nullable=True,
    )
    # Assign updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate...
    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())