AI: Auto-add model defaults when loading "vision.yml" #5234

Signed-off-by: Michael Mayer <michael@photoprism.app>

internal/ai/vision/config.go

@@ -91,40 +91,13 @@ func (c *ConfigValues) Load(fileName string) error {
 		return err
 	}
 
-	// 1. Ensure that there is at least one configuration for each model type,
+	// Replace default placeholders with canonical defaults while respecting
-	//    so that adding a copy of the default configuration to the vision.yml file
+	// explicit Run / Disabled overrides.
-	//    is not required. We could alternatively require a model to included in
+	c.applyDefaultModels()
-	//    the "vision.yml" file, but set the defaults if the "Default" flag is set
-	//    while preserving explicit Run / Disabled overrides.
-	// 2. Use the default "Thresholds" if no custom thresholds are configured.
 
-	for i, model := range c.Models {
+	// Add missing default models so users are not required to list them in
-		if !model.Default {
+	// vision.yml. Custom models continue to override defaults when present.
-			continue
+	c.ensureDefaultModels()
-		}
-
-		runType := model.Run
-		disabled := model.Disabled
-
-		switch model.Type {
-		case ModelTypeLabels:
-			c.Models[i] = NasnetModel.Clone()
-		case ModelTypeNsfw:
-			c.Models[i] = NsfwModel.Clone()
-		case ModelTypeFace:
-			c.Models[i] = FacenetModel.Clone()
-		case ModelTypeCaption:
-			c.Models[i] = CaptionModel.Clone()
-		}
-
-		if runType != RunAuto {
-			c.Models[i].Run = runType
-		}
-
-		if disabled {
-			c.Models[i].Disabled = disabled
-		}
-	}
 
 	for _, model := range c.Models {
 		model.ApplyEngineDefaults()
@@ -145,6 +118,74 @@ func (c *ConfigValues) Load(fileName string) error {
 	return nil
 }
 
+// applyDefaultModels swaps entries marked as Default with the built-in
+// models while keeping user-specified Run / Disabled overrides intact.
+func (c *ConfigValues) applyDefaultModels() {
+	for i, model := range c.Models {
+		if !model.Default {
+			continue
+		}
+
+		runType := model.Run
+		disabled := model.Disabled
+
+		switch model.Type {
+		case ModelTypeLabels:
+			c.Models[i] = NasnetModel.Clone()
+		case ModelTypeNsfw:
+			c.Models[i] = NsfwModel.Clone()
+		case ModelTypeFace:
+			c.Models[i] = FacenetModel.Clone()
+		case ModelTypeCaption:
+			c.Models[i] = CaptionModel.Clone()
+		default:
+			continue
+		}
+
+		if runType != RunAuto {
+			c.Models[i].Run = runType
+		}
+
+		if disabled {
+			c.Models[i].Disabled = disabled
+		}
+	}
+}
+
+// ensureDefaultModels appends built-in default models for any types
+// that are completely missing from the configuration. Custom models (enabled
+// or disabled) block the addition for their respective types so user intent is
+// preserved.
+func (c *ConfigValues) ensureDefaultModels() {
+	for _, defaultModel := range DefaultModels {
+		if defaultModel == nil {
+			continue
+		}
+
+		if c.hasModelType(defaultModel.Type) {
+			continue
+		}
+
+		c.Models = append(c.Models, defaultModel.Clone())
+	}
+}
+
+// hasModelType reports whether any configured model (enabled or disabled)
+// matches the provided type.
+func (c *ConfigValues) hasModelType(t ModelType) bool {
+	for _, model := range c.Models {
+		if model == nil {
+			continue
+		}
+
+		if model.Type == t {
+			return true
+		}
+	}
+
+	return false
+}
+
 // Save user settings to a file.
 func (c *ConfigValues) Save(fileName string) error {
 	if fileName == "" {

internal/ai/vision/config_test.go

@@ -29,44 +29,175 @@ func TestOptions(t *testing.T) {
 	})
 }
 
-func TestConfigValues_LoadDefaultModelWithCustomRun(t *testing.T) {
+func TestConfigValues_Load(t *testing.T) {
-	originalRun := NasnetModel.Run
+	t.Run("DefaultModelWithCustomRun", func(t *testing.T) {
-	t.Cleanup(func() {
+		originalRun := NasnetModel.Run
-		NasnetModel.Run = originalRun
+		t.Cleanup(func() {
+			NasnetModel.Run = originalRun
+		})
+
+		tempDir := t.TempDir()
+		configFile := filepath.Join(tempDir, "vision.yml")
+
+		err := os.WriteFile(configFile, []byte("Models:\n- Type: labels\n  Default: true\n  Run: on-demand\n"), fs.ModeConfigFile)
+		assert.NoError(t, err)
+
+		cfg := NewConfig()
+		err = cfg.Load(configFile)
+		assert.NoError(t, err)
+
+		assert.Equal(t, RunOnDemand, cfg.RunType(ModelTypeLabels))
+		assert.True(t, cfg.ShouldRun(ModelTypeLabels, RunOnSchedule))
+		assert.False(t, cfg.ShouldRun(ModelTypeLabels, RunOnIndex))
 	})
+	t.Run("AddsMissingDefaults", func(t *testing.T) {
+		tempDir := t.TempDir()
+		configFile := filepath.Join(tempDir, "vision.yml")
 
-	tempDir := t.TempDir()
+		configYml := "Models:\n- Type: caption\n  Name: custom-caption\n"
-	configFile := filepath.Join(tempDir, "vision.yml")
 
-	err := os.WriteFile(configFile, []byte("Models:\n- Type: labels\n  Default: true\n  Run: on-demand\n"), fs.ModeConfigFile)
+		err := os.WriteFile(configFile, []byte(configYml), fs.ModeConfigFile)
-	assert.NoError(t, err)
+		assert.NoError(t, err)
 
-	cfg := NewConfig()
+		cfg := NewConfig()
-	err = cfg.Load(configFile)
+		err = cfg.Load(configFile)
-	assert.NoError(t, err)
+		assert.NoError(t, err)
 
-	assert.Equal(t, RunOnDemand, cfg.RunType(ModelTypeLabels))
+		assert.Len(t, cfg.Models, len(DefaultModels))
-	assert.True(t, cfg.ShouldRun(ModelTypeLabels, RunOnSchedule))
+
-	assert.False(t, cfg.ShouldRun(ModelTypeLabels, RunOnIndex))
+		if labels := cfg.Model(ModelTypeLabels); assert.NotNil(t, labels) {
+			assert.Equal(t, NasnetModel.Name, labels.Name)
+		}
+
+		if caption := cfg.Model(ModelTypeCaption); assert.NotNil(t, caption) {
+			assert.Equal(t, "custom-caption", caption.Name)
+		}
+	})
+	t.Run("AddsDefaultsWhenModelsMissing", func(t *testing.T) {
+		tempDir := t.TempDir()
+		configFile := filepath.Join(tempDir, "vision.yml")
+
+		// Empty config should be populated with all default models.
+		err := os.WriteFile(configFile, []byte(""), fs.ModeConfigFile)
+		assert.NoError(t, err)
+
+		cfg := NewConfig()
+		err = cfg.Load(configFile)
+		assert.NoError(t, err)
+
+		assert.Len(t, cfg.Models, len(DefaultModels))
+		assert.True(t, cfg.IsDefault(ModelTypeLabels))
+		assert.True(t, cfg.IsDefault(ModelTypeNsfw))
+		assert.True(t, cfg.IsDefault(ModelTypeFace))
+	})
+	t.Run("DefaultModelDisabled", func(t *testing.T) {
+		tempDir := t.TempDir()
+		configFile := filepath.Join(tempDir, "vision.yml")
+
+		err := os.WriteFile(configFile, []byte("Models:\n- Type: labels\n  Default: true\n  Disabled: true\n"), fs.ModeConfigFile)
+		assert.NoError(t, err)
+
+		cfg := NewConfig()
+		err = cfg.Load(configFile)
+		assert.NoError(t, err)
+
+		if m := cfg.Model(ModelTypeLabels); m != nil {
+			t.Fatalf("expected disabled default model to be ignored, got %v", m)
+		}
+
+		assert.Equal(t, RunNever, cfg.RunType(ModelTypeLabels))
+		assert.False(t, cfg.ShouldRun(ModelTypeLabels, RunManual))
+	})
+	t.Run("MissingThresholdsUsesDefaults", func(t *testing.T) {
+		tempDir := t.TempDir()
+		configFile := filepath.Join(tempDir, "vision.yml")
+
+		err := os.WriteFile(configFile, []byte("Models:\n- Type: labels\n"), fs.ModeConfigFile)
+		assert.NoError(t, err)
+
+		cfg := NewConfig()
+		err = cfg.Load(configFile)
+		assert.NoError(t, err)
+
+		assert.Equal(t, DefaultThresholds, cfg.Thresholds)
+	})
 }
 
-func TestConfigValues_LoadDefaultModelDisabled(t *testing.T) {
+func TestConfigValues_applyDefaultModels(t *testing.T) {
-	tempDir := t.TempDir()
+	t.Run("ReplacesPlaceholderAndKeepsOverrides", func(t *testing.T) {
-	configFile := filepath.Join(tempDir, "vision.yml")
+		cfg := &ConfigValues{
+			Models: Models{
+				{
+					Type:     ModelTypeLabels,
+					Default:  true,
+					Run:      RunOnDemand,
+					Disabled: true,
+				},
+			},
+		}
 
-	err := os.WriteFile(configFile, []byte("Models:\n- Type: labels\n  Default: true\n  Disabled: true\n"), fs.ModeConfigFile)
+		cfg.applyDefaultModels()
-	assert.NoError(t, err)
 
-	cfg := NewConfig()
+		if got := cfg.Models[0]; got.Name != NasnetModel.Name {
-	err = cfg.Load(configFile)
+			t.Fatalf("expected placeholder to become nasnet, got %s", got.Name)
-	assert.NoError(t, err)
+		} else if got.Run != RunOnDemand {
+			t.Fatalf("expected Run to be preserved, got %s", got.Run)
+		} else if !got.Disabled {
+			t.Fatalf("expected Disabled to be preserved")
+		}
+	})
+	t.Run("IgnoresNonDefaultEntries", func(t *testing.T) {
+		original := &Model{Type: ModelTypeLabels, Name: "custom", Default: false}
+		cfg := &ConfigValues{Models: Models{original}}
 
-	if m := cfg.Model(ModelTypeLabels); m != nil {
+		cfg.applyDefaultModels()
-		t.Fatalf("expected disabled default model to be ignored, got %v", m)
-	}
 
-	assert.Equal(t, RunNever, cfg.RunType(ModelTypeLabels))
+		if cfg.Models[0] != original {
-	assert.False(t, cfg.ShouldRun(ModelTypeLabels, RunManual))
+			t.Fatalf("expected non-default model to remain unchanged")
+		}
+	})
+}
+
+func TestConfigValues_ensureDefaultModels(t *testing.T) {
+	t.Run("AppendsMissingDefaults", func(t *testing.T) {
+		cfg := &ConfigValues{Models: Models{}}
+
+		cfg.ensureDefaultModels()
+
+		if len(cfg.Models) != len(DefaultModels) {
+			t.Fatalf("expected %d models, got %d", len(DefaultModels), len(cfg.Models))
+		}
+	})
+	t.Run("SkipsTypesAlreadyPresent", func(t *testing.T) {
+		custom := &Model{Type: ModelTypeLabels, Name: "custom"}
+		cfg := &ConfigValues{Models: Models{custom}}
+
+		cfg.ensureDefaultModels()
+
+		if len(cfg.Models) != len(DefaultModels) {
+			t.Fatalf("expected defaults minus duplicate type, got %d", len(cfg.Models))
+		}
+
+		if cfg.Models[0] != custom && cfg.Models[len(cfg.Models)-1] != custom {
+			t.Fatalf("expected existing custom model to remain")
+		}
+	})
+	t.Run("TreatsDisabledCustomAsPresent", func(t *testing.T) {
+		custom := &Model{Type: ModelTypeNsfw, Name: "custom", Disabled: true}
+		cfg := &ConfigValues{Models: Models{custom}}
+
+		cfg.ensureDefaultModels()
+
+		countType := 0
+		for _, m := range cfg.Models {
+			if m.Type == ModelTypeNsfw {
+				countType++
+			}
+		}
+		if countType != 1 {
+			t.Fatalf("expected no additional nsfw default when custom exists, got %d entries", countType)
+		}
+	})
 }
 
 func TestConfigModelPrefersLastEnabled(t *testing.T) {
@@ -151,7 +282,6 @@ func TestConfigValues_ShouldRun(t *testing.T) {
 			t.Fatalf("expected false when no model configured")
 		}
 	})
-
 	t.Run("DefaultAutoModel", func(t *testing.T) {
 		cfg := &ConfigValues{Models: Models{NasnetModel.Clone()}}
 		assertConfigShouldRun(t, cfg, RunManual, true)
@@ -161,7 +291,6 @@ func TestConfigValues_ShouldRun(t *testing.T) {
 		assertConfigShouldRun(t, cfg, RunNewlyIndexed, false)
 		assertConfigShouldRun(t, cfg, RunNever, false)
 	})
-
 	t.Run("CustomOverridesDefault", func(t *testing.T) {
 		defaultModel := NasnetModel.Clone()
 		custom := &Model{Type: ModelTypeLabels, Name: "custom"}
@@ -171,7 +300,6 @@ func TestConfigValues_ShouldRun(t *testing.T) {
 		assertConfigShouldRun(t, cfg, RunOnIndex, false)
 		assertConfigShouldRun(t, cfg, RunNewlyIndexed, true)
 	})
-
 	t.Run("DisabledCustomFallsBack", func(t *testing.T) {
 		defaultModel := NasnetModel.Clone()
 		custom := &Model{Type: ModelTypeLabels, Name: "custom", Disabled: true}
@@ -181,7 +309,6 @@ func TestConfigValues_ShouldRun(t *testing.T) {
 		assertConfigShouldRun(t, cfg, RunOnIndex, true)
 		assertConfigShouldRun(t, cfg, RunNewlyIndexed, false)
 	})
-
 	t.Run("ManualOnly", func(t *testing.T) {
 		model := &Model{Type: ModelTypeLabels, Run: RunManual}
 		cfg := &ConfigValues{Models: Models{model}}