feat(studio B1): persist input edits to content elements (render-binding foundation)

Studio edits previously went only to edit_state; the render binds saved_scene_contents, so edits never reached the MP4. Add studio-svc PATCH /v1/saved-projects/{id}/contents (update saved_scene_contents.value/value_file_id by content key, ExecuteSqlInterpolated for null-safe params) + Next /api/projects/[id]/contents route + persistence hook pushes edited values (from bridged c-<key> layers) alongside the scene_data save. Verified text persists incl. UTF-8 Persian (9 chars/17 bytes). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-07 00:53:17 +03:30
parent d4b1fbd9e6
commit a69bc62724
6 changed files with 140 additions and 0 deletions
@@ -0,0 +1,43 @@
+import { NextResponse } from "next/server";
+
+import { gatewayFetch } from "@/lib/api/gateway";
+import { getAccessToken } from "@/lib/auth/session";
+
+export const dynamic = "force-dynamic";
+
+/**
+ * Persist the studio editor's per-input values to the saved project's content
+ * elements (studio-svc PATCH /v1/saved-projects/{id}/contents). The render binder
+ * reads saved_scene_contents.value, so this is what makes user edits reach the MP4.
+ * Body: { items: [{ key, value, valueFileId? }] }
+ */
+export async function PATCH(
+  req: Request,
+  ctx: { params: Promise<{ projectId: string }> }
+) {
+  const { projectId } = await ctx.params;
+  const token = await getAccessToken();
+  if (!token) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+
+  const body = (await req.json().catch(() => null)) as {
+    items?: Array<{ key?: string; value?: string | null; valueFileId?: string | null }>;
+  } | null;
+  const items = Array.isArray(body?.items)
+    ? body!.items.filter((i) => typeof i?.key === "string" && i.key.length > 0)
+    : [];
+  if (items.length === 0) return NextResponse.json({ updated: 0 });
+
+  const res = await gatewayFetch(`/v1/saved-projects/${projectId}/contents`, {
+    method: "PATCH",
+    headers: { Authorization: `Bearer ${token}` },
+    body: JSON.stringify({ items }),
+  });
+  if (!res.ok) {
+    const d = await res.json().catch(() => null);
+    return NextResponse.json(
+      { error: d?.message ?? "Could not save inputs" },
+      { status: res.status }
+    );
+  }
+  return NextResponse.json(await res.json().catch(() => ({ updated: items.length })));
+}