updated downloader

scripts/rebuild_cube.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"time"
+
+	"git.intra.yksa.space/gsn/predictor/internal/pkg/grib"
+)
+
+func main() {
+	ctx := context.Background()
+
+	cfg := &grib.Config{
+		Dir:      "C:/tmp/grib",
+		TTL:      48 * time.Hour,
+		CacheTTL: 1 * time.Hour,
+		Parallel: 8,
+	}
+
+	svc, err := grib.New(cfg)
+	if err != nil {
+		fmt.Printf("Error: %v\n", err)
+		return
+	}
+
+	// Delete old cube to force rebuild
+	cubePath := "C:/tmp/grib/20260212_12.cube"
+	if err := os.Remove(cubePath); err != nil && !os.IsNotExist(err) {
+		fmt.Printf("Remove cube error: %v\n", err)
+	} else {
+		fmt.Println("Old cube removed")
+	}
+
+	// Update will download missing pgrb2b files and rebuild cube
+	fmt.Println("Starting update (download pgrb2b + rebuild cube)...")
+	start := time.Now()
+	if err := svc.Update(ctx); err != nil {
+		fmt.Printf("Update error: %v\n", err)
+		return
+	}
+	fmt.Printf("Done in %v\n", time.Since(start))
+}