"""Asset application service."""

from fastapi import HTTPException, status
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession

from app.api.schemas.asset import AssetRead
from app.infra.db.models.asset import AssetORM
from app.infra.db.models.order import OrderORM


class AssetService:
    """Application service for asset queries."""

    async def list_order_assets(self, session: AsyncSession, order_id: int) -> list[AssetRead]:
        """Return all assets belonging to an order."""

        order = await session.get(OrderORM, order_id)
        if order is None:
            raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Order not found")

        result = await session.execute(
            select(AssetORM).where(AssetORM.order_id == order_id).order_by(AssetORM.created_at.asc())
        )
        return [AssetRead.model_validate(asset) for asset in result.scalars().all()]