Initial MoonModel implementation

2026-08-11 14:41:33 -07:00
commit 518fe64b13
36 changed files with 2587 additions and 0 deletions
@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class ThreeMFTest < Minitest::Test
+  def test_bambu_part_names_and_slots_follow_palette_order
+    palette = [
+      { "name" => "Bright & Structural", "hex" => "#EEEEEE" },
+      { "name" => "Dark", "hex" => "#222222" },
+      { "name" => "Mid gray", "hex" => "#888888" },
+      { "name" => "Blue gray", "hex" => "#667788" }
+    ]
+    meshes = [mesh("moon_structure", palette[0], 0)] +
+             palette.each_with_index.map { |color, index| mesh("moon_surface_#{index + 1}", color, index + 2) }
+
+    Dir.mktmpdir do |dir|
+      path = File.join(dir, "moon.3mf")
+      MoonModel::ThreeMF.write(path, meshes, metadata: { "Title" => "Four Color Moon" }, palette: palette)
+      Zip::File.open(path) do |zip|
+        model = zip.read("3D/3dmodel.model").force_encoding(Encoding::UTF_8)
+        settings = zip.read("Metadata/model_settings.config").force_encoding(Encoding::UTF_8)
+
+        assert_operator model.index('name="Bright &amp; Structural"'), :<, model.index('name="Dark"')
+        assert_includes model, 'name="Four Color Moon" type="model"><components>'
+        assert_includes settings, 'value="Structure — Bright &amp; Structural (#EEEEEE) — Filament 1"'
+        assert_includes settings, 'value="Surface — Bright &amp; Structural (#EEEEEE) — Filament 1"'
+        assert_equal 2, settings.scan('key="extruder" value="1"').length
+        assert_equal 1, settings.scan('key="extruder" value="2"').length
+        assert_equal 1, settings.scan('key="extruder" value="3"').length
+        assert_equal 1, settings.scan('key="extruder" value="4"').length
+      end
+    end
+  end
+
+  def test_unassigned_mesh_has_name_but_no_extruder
+    mesh = mesh("three_leg_stand", nil, 0)
+
+    settings = MoonModel::ThreeMF.send(:build_bambu_model_settings, [mesh], { "Title" => "Stand" }, [])
+
+    assert_includes settings, "Three Leg Stand — material unassigned"
+    refute_includes settings, 'key="extruder"'
+  end
+
+  def test_unused_colors_do_not_renumber_later_palette_slots
+    palette = [
+      { "name" => "First", "hex" => "#111111" },
+      { "name" => "Unused", "hex" => "#222222" },
+      { "name" => "Third", "hex" => "#333333" }
+    ]
+    meshes = [mesh("moon_structure", palette[0], 0), mesh("moon_third", palette[2], 2)]
+
+    settings = MoonModel::ThreeMF.send(:build_bambu_model_settings, meshes, { "Title" => "Moon" }, palette)
+
+    assert_includes settings, "Surface — Third (#333333) — Filament 3"
+    assert_includes settings, 'key="extruder" value="3"'
+  end
+
+  private
+
+  def mesh(name, material, offset)
+    MoonModel::Mesh.new(name: name, material: material).tap do |value|
+      value.add_box([offset, 0, 0], [1, 1, 1])
+    end
+  end
+end