Better restrict editing of the live configuration

apps/portal/src/routes/(app)/calculator/+page.svelte

@@ -73,6 +73,10 @@
         return JSON.stringify(current) !== JSON.stringify(savedSnapshot);
     });
 
+    const isLive = $derived(
+        !!editor && editor.configId !== null && editor.configId === liveConfigId,
+    );
+
     const selectedMetrics = $derived({
         gender: metrics.gender,
         age: metrics.age ?? 0,
@@ -158,32 +162,39 @@
         editor.data = res.data.data;
     }
 
-    async function persist(mode: "update" | "create") {
-        if (!editor || !editor.name) return;
+    async function persist(mode: "update" | "create", nameOverride?: string) {
+        if (!editor) return;
+        const name = nameOverride ?? editor.name;
+        if (!name) return;
+        if (mode === "update" && editor.configId && editor.configId === liveConfigId)
+            return;
         const target = editor;
         saveError = null;
         saving = true;
         try {
             if (mode === "update" && target.configId) {
                 const res = await api.standards.configs({ id: target.configId }).put({
-                    name: target.name,
+                    name,
                     datasetId: target.datasetId,
                     params: target.params,
                 });
                 if (res.error) throw res.error;
             } else {
                 const res = await api.standards.configs.post({
-                    name: target.name,
+                    name,
                     datasetId: target.datasetId,
                     params: target.params,
                 });
                 if (res.error) throw res.error;
-                // only stamp the new id if the user hasn't switched away in the meantime
-                if (editor === target) editor.configId = res.data.id;
+                // only stamp the new id/name if the user hasn't switched away in the meantime
+                if (editor === target) {
+                    editor.configId = res.data.id;
+                    editor.name = name;
+                }
             }
             if (editor === target) {
                 savedSnapshot = {
-                    name: target.name,
+                    name,
                     datasetId: target.datasetId,
                     params: $state.snapshot(target.params),
                 };
@@ -201,8 +212,16 @@
         return persist(editor?.configId ? "update" : "create");
     }
 
-    function saveAsNew() {
-        return persist("create");
+    function promptSaveAsNew() {
+        if (!editor) return;
+        const name = prompt(
+            "Name for the new configuration:",
+            editor.name ? `${editor.name} copy` : "",
+        );
+        if (name === null) return;
+        const trimmed = name.trim();
+        if (!trimmed) return;
+        return persist("create", trimmed);
     }
 
     async function discard() {
@@ -213,6 +232,12 @@
     async function setLive() {
         if (!editor?.configId || isDirty) return;
         const configId = editor.configId;
+        if (
+            !confirm(
+                `Set "${editor.name || "(untitled)"}" as the live configuration? This will immediately affect live calculations.`,
+            )
+        )
+            return;
         saveError = null;
         settingLive = true;
         try {
@@ -313,11 +338,27 @@
                 </option>
             {/each}
         </select>
+        <button
+            class="btn btn-ghost btn-sm btn-square"
+            title="Save as new configuration"
+            aria-label="Save as new configuration"
+            disabled={saving}
+            onclick={promptSaveAsNew}
+        >
+            <span class="text-lg leading-none">+</span>
+        </button>
 
         {#if isDirty}
             <span class="badge badge-warning badge-sm">Unsaved</span>
-        {:else if currentEditor.configId === liveConfigId}
-            <span class="badge badge-success badge-sm">Live</span>
+        {/if}
+
+        <div class="flex-1"></div>
+
+        {#if isLive}
+            <p class="text-sm text-info opacity-90">
+                This is the live configuration and is read-only — click "+"
+                to create an editable copy.
+            </p>
         {/if}
 
         <div class="flex-1"></div>
@@ -329,27 +370,21 @@
         >
             Discard changes
         </button>
-        <button
-            class="btn btn-outline btn-sm"
-            hidden={currentEditor.configId === liveConfigId || isDirty}
-            disabled={settingLive || isDirty}
-            onclick={setLive}
-        >
-            {settingLive ? "Setting live..." : "Set as live"}
-        </button>
         <button
             class="btn btn-primary btn-sm"
-            disabled={saving || !isDirty}
+            hidden={isLive}
+            disabled={saving || !isDirty || isLive}
             onclick={save}
         >
             {saving ? "Saving..." : "Save"}
         </button>
         <button
             class="btn btn-outline btn-sm"
-            disabled={saving || !currentEditor.name}
-            onclick={saveAsNew}
+            hidden={currentEditor.configId === liveConfigId}
+            disabled={settingLive || isDirty}
+            onclick={setLive}
         >
-            Save as new
+            {settingLive ? "Setting live..." : "Set as live"}
         </button>
     </div>
 
@@ -359,6 +394,7 @@
         </div>
     {/if}
 
+
     <section class="w-full flex gap-4 flex-wrap mt-6">
         <fieldset class="fieldset bg-base-200 p-4">
             <label class="flex flex-col gap-1">
@@ -374,6 +410,7 @@
                 <select
                     class="select select-sm w-36"
                     value={currentEditor.datasetId}
+                    disabled={isLive}
                     onchange={(e) => onDatasetChange(e.currentTarget.value)}
                 >
                     {#each datasets as dataset}
@@ -385,6 +422,7 @@
                 <span class="label text-xs">Max level</span>
                 <input
                     class="input input-sm w-36"
+                    disabled={isLive}
                     type="number"
                     min="1"
                     max="100"
@@ -414,7 +452,7 @@
             </label>
 
             <div class="flex gap-3 flex-wrap">
-                <fieldset class="fieldset bg-base-300 p-2">
+                <fieldset class="fieldset bg-base-300 p-2" disabled={isLive}>
                     <legend class="fieldset-legend text-sm font-semibold"
                         >Modifiers</legend
                     >
@@ -429,7 +467,7 @@
                     />
                 </fieldset>
 
-                <fieldset class="fieldset bg-base-300 p-2">
+                <fieldset class="fieldset bg-base-300 p-2" disabled={isLive}>
                     <legend class="fieldset-legend text-sm font-semibold"
                         >Generation</legend
                     >