Files
planet/backend/app/api/v1/visualization.py
rayd1o de32552159 feat: add data sources config system and Earth API integration
- Add data_sources.yaml for configurable data source URLs
- Add data_sources.py to load config with database override support
- Add arcgis_landing_points and arcgis_cable_landing_relation collectors
- Change visualization API to query arcgis_landing_points
- Add /api/v1/datasources/configs/all endpoint
- Update Earth to fetch from API instead of static files
- Fix scheduler collector ID mappings
2026-03-13 10:54:02 +08:00

245 lines
8.5 KiB
Python

"""Visualization API - GeoJSON endpoints for 3D Earth display"""
from fastapi import APIRouter, HTTPException, Depends
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select
from typing import List, Dict, Any, Optional
from app.db.session import get_db
from app.models.collected_data import CollectedData
from app.services.cable_graph import build_graph_from_data, CableGraph
router = APIRouter()
def convert_cable_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
"""Convert cable records to GeoJSON FeatureCollection"""
features = []
for record in records:
metadata = record.extra_data or {}
route_coords = metadata.get("route_coordinates", [])
if not route_coords:
continue
all_lines = []
# Handle both old format (flat array) and new format (array of arrays)
if route_coords and isinstance(route_coords[0], list):
# New format: array of arrays (MultiLineString structure)
if route_coords and isinstance(route_coords[0][0], list):
# Array of arrays of arrays - multiple lines
for line in route_coords:
line_coords = []
for point in line:
if len(point) >= 2:
try:
lon = float(point[0])
lat = float(point[1])
line_coords.append([lon, lat])
except (ValueError, TypeError):
continue
if len(line_coords) >= 2:
all_lines.append(line_coords)
else:
# Old format: flat array of points - treat as single line
line_coords = []
for point in route_coords:
if len(point) >= 2:
try:
lon = float(point[0])
lat = float(point[1])
line_coords.append([lon, lat])
except (ValueError, TypeError):
continue
if len(line_coords) >= 2:
all_lines.append(line_coords)
if not all_lines:
continue
# Use MultiLineString format to preserve cable segments
features.append(
{
"type": "Feature",
"geometry": {"type": "MultiLineString", "coordinates": all_lines},
"properties": {
"id": record.id,
"source_id": record.source_id,
"Name": record.name,
"name": record.name,
"owner": metadata.get("owners"),
"owners": metadata.get("owners"),
"rfs": metadata.get("rfs"),
"RFS": metadata.get("rfs"),
"status": metadata.get("status", "active"),
"length": record.value,
"length_km": record.value,
"SHAPE__Length": record.value,
"url": metadata.get("url"),
"color": metadata.get("color"),
"year": metadata.get("year"),
},
}
)
return {"type": "FeatureCollection", "features": features}
def convert_landing_point_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
"""Convert landing point records to GeoJSON FeatureCollection"""
features = []
for record in records:
try:
lat = float(record.latitude) if record.latitude else None
lon = float(record.longitude) if record.longitude else None
except (ValueError, TypeError):
continue
if lat is None or lon is None:
continue
metadata = record.extra_data or {}
features.append(
{
"type": "Feature",
"geometry": {"type": "Point", "coordinates": [lon, lat]},
"properties": {
"id": record.id,
"source_id": record.source_id,
"name": record.name,
"country": record.country,
"city": record.city,
"is_tbd": metadata.get("is_tbd", False),
},
}
)
return {"type": "FeatureCollection", "features": features}
@router.get("/geo/cables")
async def get_cables_geojson(db: AsyncSession = Depends(get_db)):
"""获取海底电缆 GeoJSON 数据 (LineString)"""
try:
stmt = select(CollectedData).where(CollectedData.source == "arcgis_cables")
result = await db.execute(stmt)
records = result.scalars().all()
if not records:
raise HTTPException(
status_code=404,
detail="No cable data found. Please run the arcgis_cables collector first.",
)
return convert_cable_to_geojson(records)
except HTTPException:
raise
except Exception as e:
raise HTTPException(status_code=500, detail=f"Internal error: {str(e)}")
@router.get("/geo/landing-points")
async def get_landing_points_geojson(db: AsyncSession = Depends(get_db)):
"""获取登陆点 GeoJSON 数据 (Point)"""
try:
stmt = select(CollectedData).where(CollectedData.source == "arcgis_landing_points")
result = await db.execute(stmt)
records = result.scalars().all()
if not records:
raise HTTPException(
status_code=404,
detail="No landing point data found. Please run the arcgis_landing_points collector first.",
)
return convert_landing_point_to_geojson(records)
except HTTPException:
raise
except Exception as e:
raise HTTPException(status_code=500, detail=f"Internal error: {str(e)}")
@router.get("/geo/all")
async def get_all_geojson(db: AsyncSession = Depends(get_db)):
"""获取所有可视化数据 (电缆 + 登陆点)"""
cables_stmt = select(CollectedData).where(CollectedData.source == "arcgis_cables")
cables_result = await db.execute(cables_stmt)
cables_records = cables_result.scalars().all()
points_stmt = select(CollectedData).where(CollectedData.source == "arcgis_landing_points")
points_result = await db.execute(points_stmt)
points_records = points_result.scalars().all()
cables = (
convert_cable_to_geojson(cables_records)
if cables_records
else {"type": "FeatureCollection", "features": []}
)
points = (
convert_landing_point_to_geojson(points_records)
if points_records
else {"type": "FeatureCollection", "features": []}
)
return {
"cables": cables,
"landing_points": points,
"stats": {
"cable_count": len(cables.get("features", [])) if cables else 0,
"landing_point_count": len(points.get("features", [])) if points else 0,
},
}
# Cache for cable graph
_cable_graph: Optional[CableGraph] = None
async def get_cable_graph(db: AsyncSession) -> CableGraph:
"""Get or build cable graph (cached)"""
global _cable_graph
if _cable_graph is None:
cables_stmt = select(CollectedData).where(CollectedData.source == "arcgis_cables")
cables_result = await db.execute(cables_stmt)
cables_records = list(cables_result.scalars().all())
points_stmt = select(CollectedData).where(CollectedData.source == "arcgis_landing_points")
points_result = await db.execute(points_stmt)
points_records = list(points_result.scalars().all())
cables_data = convert_cable_to_geojson(cables_records)
points_data = convert_landing_point_to_geojson(points_records)
_cable_graph = build_graph_from_data(cables_data, points_data)
return _cable_graph
@router.post("/geo/path")
async def find_path(
start: List[float],
end: List[float],
db: AsyncSession = Depends(get_db),
):
"""Find shortest path between two coordinates via cable network"""
if not start or len(start) != 2:
raise HTTPException(status_code=400, detail="Start must be [lon, lat]")
if not end or len(end) != 2:
raise HTTPException(status_code=400, detail="End must be [lon, lat]")
graph = await get_cable_graph(db)
result = graph.find_shortest_path(start, end)
if not result:
raise HTTPException(
status_code=404,
detail="No path found between these points. They may be too far from any landing point.",
)
return result