import FreeCAD as App
import FreeCADGui as Gui

def format_line(label, value, unit=""):
    return f"{label:<12}: {value} {unit}".rstrip()

sel = Gui.Selection.getSelection()

if not sel:
    App.Console.PrintError("⚠️ Ni izbranega objekta.\n")
else:
    obj = sel[0]
    App.Console.PrintMessage("\n📋 PODATKI O OBJEKTU\n")
    App.Console.PrintMessage("──────────────────────────────\n")
    App.Console.PrintMessage(format_line("Objekt", obj.Label) + "\n")

    # Privzete vrednosti
    material_name = "Ni nastavljen"
    density_kgm3 = None
    volume = None
    mass_g = None
    mass_kg = None

    # Preveri ShapeMaterial
    if hasattr(obj, "ShapeMaterial") and obj.ShapeMaterial:
        mat = obj.ShapeMaterial
        if hasattr(mat, "Name"):
            material_name = mat.Name  # ime materiala, npr. PLA, Steel ...
        if mat.hasPhysicalProperty("Density"):
            dens = mat.getPhysicalValue("Density")
            # Pretvori gostoto v kg/m³
            try:
                density_kgm3 = float(dens.getValueAs("kg/m^3"))
            except:
                density_kgm3 = None

    App.Console.PrintMessage(format_line("Material", material_name) + "\n")

    # Volumen in masa
    try:
        volume = obj.Shape.Volume  # mm³
        App.Console.PrintMessage(format_line("Volumen", f"{volume:.2f}", "mm³") + "\n")
    except:
        App.Console.PrintError("❌ Napaka pri branju volumna\n")

    if volume and density_kgm3:
        density_g_mm3 = density_kgm3 * 1e-6
        mass_g = volume * density_g_mm3
        mass_kg = mass_g / 1000
        App.Console.PrintMessage(format_line("Gostota", f"{density_kgm3:.2f}", "kg/m³") + "\n")
        App.Console.PrintMessage(format_line("Masa", f"{mass_g:.2f}", "g") + f" ({mass_kg:.3f} kg)\n")
    elif density_kgm3 is None:
        App.Console.PrintError("❌ Gostota ni znana\n")
    else:
        App.Console.PrintError("❌ Ni mogoče izračunati mase\n")

    App.Console.PrintMessage("──────────────────────────────\n")