Model clone button on model list

Each model row now has a Clone button that duplicates the model with all
its ports, flags, and images, appending '(copy)' to the name. Saves
re-creating 48 ports when making a sibling switch model.

internal/handlers/models.go

@@ -163,6 +163,42 @@ func (h *Handlers) ModelDelete(w http.ResponseWriter, r *http.Request) {
 	http.Redirect(w, r, "/models", http.StatusSeeOther)
 }
 
+func (h *Handlers) ModelClone(w http.ResponseWriter, r *http.Request) {
+	idStr := r.PathValue("id")
+	id, _ := strconv.ParseInt(idStr, 10, 64)
+
+	orig, err := h.Store.ModelGetByID(id)
+	if err != nil || orig == nil {
+		h.renderModelListError(w, "Model not found.")
+		return
+	}
+
+	clone := &models.DeviceModel{
+		Name:            orig.Name + " (copy)",
+		Manufacturer:    orig.Manufacturer,
+		IsRackMountable: orig.IsRackMountable,
+		HeightUnits:     orig.HeightUnits,
+		FrontImage:      orig.FrontImage,
+		BackImage:       orig.BackImage,
+		IsPatchPanel:    orig.IsPatchPanel,
+		IsWallSocket:    orig.IsWallSocket,
+		IsPowerStrip:    orig.IsPowerStrip,
+		Ports:           orig.Ports,
+	}
+
+	_, err = h.Store.ModelCreate(clone, "uploads")
+	if err != nil {
+		msg := err.Error()
+		if strings.Contains(strings.ToLower(msg), "unique") {
+			msg = "A model named '" + clone.Name + "' already exists, onii-chan."
+		}
+		h.renderModelListError(w, msg)
+		return
+	}
+
+	http.Redirect(w, r, "/models", http.StatusSeeOther)
+}
+
 func (h *Handlers) renderModelListError(w http.ResponseWriter, msg string) {
 	list, _ := h.Store.ModelGetAll()
 	if list == nil {

main.go

@@ -45,6 +45,7 @@ func main() {
 	mux.HandleFunc("GET /models/{id}/edit", h.ModelEditForm)
 	mux.HandleFunc("POST /models/{id}/update", h.ModelUpdate)
 	mux.HandleFunc("POST /models/{id}/delete", h.ModelDelete)
+	mux.HandleFunc("POST /models/{id}/clone", h.ModelClone)
 	mux.HandleFunc("GET /connections/{portId}", h.ConnectionModal)
 	mux.HandleFunc("GET /connections/connect-form", h.ConnectionConnectForm)
 	mux.HandleFunc("POST /connections/create", h.ConnectionCreate)

templates/model_list.html

@@ -20,6 +20,9 @@
     <td>{{if .IsWallSocket}}yes{{end}}</td>
     <td>
         <a href="/models/{{.ID}}/edit" class="btn-sm">Edit</a>
+        <form method="POST" action="/models/{{.ID}}/clone" style="display:inline">
+            <button class="btn-sm">Clone</button>
+        </form>
         <form method="POST" action="/models/{{.ID}}/delete" style="display:inline" onsubmit="return confirm('Delete model?')">
             <button class="btn-sm btn-danger">Delete</button>
         </form>