import uuid
from datetime import datetime
from sqlalchemy import String, DateTime, func
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.dialects.postgresql import UUID, JSONB
from app.database import Base


class AuditLog(Base):
    __tablename__ = "audit_logs"

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    entity_type: Mapped[str] = mapped_column(String(30))
    entity_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True))
    entity_name: Mapped[str] = mapped_column(String(200), default="")
    action: Mapped[str] = mapped_column(String(10))  # create / update / delete
    operator_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True))
    operator_name: Mapped[str] = mapped_column(String(50), default="")
    summary: Mapped[str | None] = mapped_column(String(500), nullable=True)
    details: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())