@mytec: 1.2iter ready for test

backend/app/api/routes/terrain.py

@@ -0,0 +1,101 @@
+import os
+
+from fastapi import APIRouter, HTTPException, Query
+from fastapi.responses import FileResponse
+from typing import Optional
+
+from app.core.config import settings
+from app.services.terrain_service import terrain_service
+from app.services.los_service import los_service
+
+router = APIRouter()
+
+
+@router.get("/elevation")
+async def get_elevation(
+    lat: float = Query(..., ge=-90, le=90, description="Latitude"),
+    lon: float = Query(..., ge=-180, le=180, description="Longitude")
+):
+    """Get elevation at a specific point"""
+    elevation = await terrain_service.get_elevation(lat, lon)
+    return {
+        "lat": lat,
+        "lon": lon,
+        "elevation": elevation,
+        "unit": "meters"
+    }
+
+
+@router.get("/profile")
+async def get_elevation_profile(
+    lat1: float = Query(..., description="Start latitude"),
+    lon1: float = Query(..., description="Start longitude"),
+    lat2: float = Query(..., description="End latitude"),
+    lon2: float = Query(..., description="End longitude"),
+    points: int = Query(100, ge=10, le=500, description="Number of sample points")
+):
+    """Get elevation profile between two points"""
+    profile = await terrain_service.get_elevation_profile(lat1, lon1, lat2, lon2, points)
+
+    return {
+        "start": {"lat": lat1, "lon": lon1},
+        "end": {"lat": lat2, "lon": lon2},
+        "num_points": len(profile),
+        "profile": profile
+    }
+
+
+@router.get("/los")
+async def check_line_of_sight(
+    tx_lat: float = Query(..., description="Transmitter latitude"),
+    tx_lon: float = Query(..., description="Transmitter longitude"),
+    tx_height: float = Query(..., ge=0, description="Transmitter height above ground (m)"),
+    rx_lat: float = Query(..., description="Receiver latitude"),
+    rx_lon: float = Query(..., description="Receiver longitude"),
+    rx_height: float = Query(1.5, ge=0, description="Receiver height above ground (m)")
+):
+    """Check line-of-sight between transmitter and receiver"""
+    result = await los_service.check_line_of_sight(
+        tx_lat, tx_lon, tx_height,
+        rx_lat, rx_lon, rx_height
+    )
+    return result
+
+
+@router.get("/fresnel")
+async def check_fresnel_clearance(
+    tx_lat: float = Query(..., description="Transmitter latitude"),
+    tx_lon: float = Query(..., description="Transmitter longitude"),
+    tx_height: float = Query(..., ge=0, description="Transmitter height (m)"),
+    rx_lat: float = Query(..., description="Receiver latitude"),
+    rx_lon: float = Query(..., description="Receiver longitude"),
+    rx_height: float = Query(1.5, ge=0, description="Receiver height (m)"),
+    frequency: float = Query(..., ge=100, le=6000, description="Frequency (MHz)")
+):
+    """Calculate Fresnel zone clearance"""
+    result = await los_service.calculate_fresnel_clearance(
+        tx_lat, tx_lon, tx_height,
+        rx_lat, rx_lon, rx_height,
+        frequency
+    )
+    return result
+
+
+@router.get("/tiles")
+async def list_cached_tiles():
+    """List cached SRTM tiles"""
+    tiles = list(terrain_service.cache_dir.glob("*.hgt"))
+    return {
+        "cache_dir": str(terrain_service.cache_dir),
+        "tiles": [t.stem for t in tiles],
+        "count": len(tiles)
+    }
+
+
+@router.get("/file/{region}")
+async def get_terrain_file(region: str):
+    """Serve raw SRTM terrain .hgt files (legacy compatibility)."""
+    terrain_path = os.path.join(settings.TERRAIN_DATA_DIR, f"{region}.hgt")
+    if os.path.exists(terrain_path):
+        return FileResponse(terrain_path)
+    raise HTTPException(status_code=404, detail=f"Region '{region}' not found")