import uuid
from datetime import datetime, timezone
from typing import Optional, TYPE_CHECKING
from sqlalchemy import String, Text, DateTime, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.dialects.postgresql import UUID, JSONB
from app.core.database import Base

if TYPE_CHECKING:
    from app.models.user import User
    from app.models.account import Account


class TargetList(Base):
    __tablename__ = "target_lists"

    id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
    )
    account_id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True),
        ForeignKey("accounts.id", ondelete="CASCADE"),
        nullable=False,
        index=True,
    )
    created_by: Mapped[Optional[uuid.UUID]] = mapped_column(
        UUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL"), nullable=True
    )
    name: Mapped[str] = mapped_column(String(255), nullable=False)
    description: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
    # targets: [{"label": "RDS-01", "notes": "optional notes"}, ...]
    targets: Mapped[list] = mapped_column(JSONB, nullable=False, default=list)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        default=lambda: datetime.now(timezone.utc),
        onupdate=lambda: datetime.now(timezone.utc),
    )