from sqlalchemy import Integer, String, Text, DateTime, JSON, ForeignKey, Index
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.sql import func
from typing import Optional
from datetime import datetime
from src.apps.base.models.base import Base


class SystemActivityLog(Base):
    __tablename__ = "system_activity_logs"
    __table_args__ = (
        Index("ix_sal_merchant_id", "merchant_id"),
        Index("ix_sal_event_category", "event_category"),
        Index("ix_sal_created_at", "created_at"),
    )
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    merchant_id: Mapped[int] = mapped_column(ForeignKey("merchants.id"), nullable=False)
    event_type: Mapped[str] = mapped_column(String(100), nullable=False)
    event_category: Mapped[str] = mapped_column(String(50), nullable=False)
    description: Mapped[str] = mapped_column(Text, nullable=False)
    actor_type: Mapped[str] = mapped_column(String(50), nullable=False)
    actor_id: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)
    actor_name: Mapped[Optional[str]] = mapped_column(String(255), nullable=True)
    reference_type: Mapped[Optional[str]] = mapped_column(String(50), nullable=True)
    reference_id: Mapped[Optional[str]] = mapped_column(String(255), nullable=True)
    metadata_: Mapped[Optional[dict]] = mapped_column(JSON, name="metadata", nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())