import uuid
from datetime import datetime, timezone
from typing import Optional
from sqlalchemy import String, DateTime, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.dialects.postgresql import UUID, JSONB
from app.core.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
    )
    user_id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True),
        ForeignKey("users.id"),
        nullable=False,
        index=True
    )
    account_id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True),
        ForeignKey("accounts.id", ondelete="CASCADE"),
        nullable=False,
        index=True
    )
    action: Mapped[str] = mapped_column(String(50), nullable=False, index=True)
    resource_type: Mapped[str] = mapped_column(String(50), nullable=False, index=True)
    resource_id: Mapped[Optional[uuid.UUID]] = mapped_column(
        UUID(as_uuid=True),
        nullable=True
    )
    details: Mapped[Optional[dict]] = mapped_column(JSONB, nullable=True)
    ip_address: Mapped[Optional[str]] = mapped_column(String(45), nullable=True)
    acting_as: Mapped[Optional[str]] = mapped_column(String(30), nullable=True)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        default=lambda: datetime.now(timezone.utc)
    )