Added Editing of plates, items, configurations

internal/store/configuration.go

@@ -58,6 +58,21 @@ func (s *ConfigurationStore) Save(c model.Configuration) (model.Configuration, e
 	return c, nil
 }
 
+// Update replaces an existing configuration by ID (preserves created_at).
+func (s *ConfigurationStore) Update(id string, c model.Configuration) (model.Configuration, error) {
+	path := filepath.Join(s.dir, id+".json")
+	existing, err := readJSON[model.Configuration](path)
+	if err != nil {
+		return model.Configuration{}, fmt.Errorf("configuration not found: %s", id)
+	}
+	c.ID = existing.ID
+	c.CreatedAt = existing.CreatedAt
+	if err := writeJSON(path, c); err != nil {
+		return model.Configuration{}, fmt.Errorf("write configuration: %w", err)
+	}
+	return c, nil
+}
+
 // Delete removes a configuration by ID.
 func (s *ConfigurationStore) Delete(id string) error {
 	path := filepath.Join(s.dir, id+".json")

internal/store/item.go

@@ -65,6 +65,30 @@ func (s *ItemStore) Create(name string, spec model.ItemSpec) (model.Item, error)
 	return svgtemplate.WriteMeta(basename, spec, displayName)
 }
 
+// Update regenerates the SVG and metadata for an existing item (preserves id, svg filename, created_at).
+func (s *ItemStore) Update(id string, name string, spec model.ItemSpec) (model.Item, error) {
+	if spec.SizeMM <= 0 {
+		return model.Item{}, fmt.Errorf("size_mm must be positive")
+	}
+	item, err := s.Get(id)
+	if err != nil {
+		return model.Item{}, err
+	}
+	data := svgtemplate.Build(spec.SizeMM, spec.BleedMM, spec.MarginMM, spec.PaddingMM)
+	if err := svgtemplate.WriteFile(item.SVGTemplate, data); err != nil {
+		return model.Item{}, fmt.Errorf("write svg: %w", err)
+	}
+	if name != "" {
+		item.Name = name
+	}
+	item.Spec = spec
+	metaPath := filepath.Join(s.dir, model.MetaFilename(item.SVGTemplate))
+	if err := writeJSON(metaPath, item); err != nil {
+		return model.Item{}, fmt.Errorf("write meta: %w", err)
+	}
+	return item, nil
+}
+
 // Delete removes an item's SVG and metadata by ID.
 func (s *ItemStore) Delete(id string) error {
 	item, err := s.Get(id)

internal/store/plate.go

@@ -49,6 +49,21 @@ func (s *PlateStore) Save(p model.Plate) (model.Plate, error) {
 	return p, nil
 }
 
+// Update replaces an existing plate by ID (preserves created_at).
+func (s *PlateStore) Update(id string, p model.Plate) (model.Plate, error) {
+	path := filepath.Join(s.dir, id+".json")
+	existing, err := readJSON[model.Plate](path)
+	if err != nil {
+		return model.Plate{}, fmt.Errorf("plate not found: %s", id)
+	}
+	p.ID = existing.ID
+	p.CreatedAt = existing.CreatedAt
+	if err := writeJSON(path, p); err != nil {
+		return model.Plate{}, fmt.Errorf("write plate: %w", err)
+	}
+	return p, nil
+}
+
 // Delete removes a plate by ID.
 func (s *PlateStore) Delete(id string) error {
 	path := filepath.Join(s.dir, id+".json")