42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
"""Bounded vessel snapshot APIs for viewport-first consumers."""
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from typing import Optional
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from fastapi import APIRouter, Depends, HTTPException, Query, Response
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.api.v1.visualization import _parse_bbox, build_vessel_snapshot_response
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from app.db.session import get_db
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from app.services.vessel_ais_aggregation import MAX_SNAPSHOT_LIMIT
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router = APIRouter()
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@router.get("/snapshot")
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async def get_vessel_snapshot(
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bbox: Optional[str] = Query(None, description="Viewport bbox as lon_min,lat_min,lon_max,lat_max"),
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zoom: int = Query(..., ge=1, le=20, description="Current map zoom level"),
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type: Optional[str] = Query(
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None,
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description="Comma-separated vessel types: cargo,tanker,passenger,fishing,military,other",
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),
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limit: int = Query(1000, ge=1, le=MAX_SNAPSHOT_LIMIT),
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since_minutes: int = Query(60, ge=1, le=1440),
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db: AsyncSession = Depends(get_db),
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response: Response = None,
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):
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if not bbox:
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raise HTTPException(status_code=400, detail="bbox is required")
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parsed_bbox = _parse_bbox(bbox)
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if parsed_bbox is None:
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raise HTTPException(status_code=400, detail="bbox is required")
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return await build_vessel_snapshot_response(
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db,
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bbox=parsed_bbox,
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zoom=zoom,
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type_filter=type,
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limit=limit,
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since_minutes=since_minutes,
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response=response,
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)
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