added covarage

api/app/workers/tasks.py

@@ -1,11 +1,67 @@
+from __future__ import annotations
+
+from app.config import get_settings
+from app.core.coverage import compute_coverage as run_coverage
+from app.core.viewshed import compute_viewshed as run_viewshed
+from app.models.coverage import CoverageRequest
+from app.models.viewshed import ViewshedRequest
+from app.services.jobs import get_job_record, update_job
 from app.workers.celery_app import celery_app
 
 
 @celery_app.task(name="coverage.compute")
 def compute_coverage(job_id: str) -> dict[str, str]:
-    return {"job_id": job_id, "status": "not_implemented"}
+    record = get_job_record(job_id)
+    if record is None:
+        return {"job_id": job_id, "status": "error", "error": "job not found"}
+
+    settings = get_settings()
+    try:
+        update_job(job_id, status="running")
+        request = CoverageRequest.model_validate(record["payload"])
+        result = run_coverage(request, dem_path=str(settings.dem_path))
+        update_job(
+            job_id,
+            status="done",
+            result={
+                "kind": "coverage",
+                "model": request.model,
+                "format": request.format,
+                "data": result,
+            },
+        )
+        return {"job_id": job_id, "status": "done"}
+    except Exception as exc:
+        update_job(job_id, status="error", error=str(exc))
+        return {"job_id": job_id, "status": "error", "error": str(exc)}
 
 
 @celery_app.task(name="viewshed.compute")
 def compute_viewshed(job_id: str) -> dict[str, str]:
-    return {"job_id": job_id, "status": "not_implemented"}
+    record = get_job_record(job_id)
+    if record is None:
+        return {"job_id": job_id, "status": "error", "error": "job not found"}
+
+    settings = get_settings()
+    try:
+        update_job(job_id, status="running")
+        request = ViewshedRequest.model_validate(record["payload"])
+        raster = run_viewshed(
+            request,
+            dem_path=settings.dem_path,
+            output_dir=settings.jobs_output_path,
+            gdal_viewshed_bin=settings.gdal_viewshed_bin,
+        )
+        update_job(
+            job_id,
+            status="done",
+            result={
+                "kind": "viewshed",
+                "uri": raster.uri,
+                "metadata": raster.metadata,
+            },
+        )
+        return {"job_id": job_id, "status": "done"}
+    except Exception as exc:
+        update_job(job_id, status="error", error=str(exc))
+        return {"job_id": job_id, "status": "error", "error": str(exc)}