initial deployment v1.0

src/routes/api/admin/replace-binary/+server.js

@@ -0,0 +1,61 @@
+import { json, error } from '@sveltejs/kit';
+import { getPersonalityById, replacePersonalityBinary } from '$lib/server/db.js';
+import { verifySession, SESSION_COOKIE } from '$lib/server/session.js';
+import { FILE_SIZE } from '$lib/prs.js';
+
+const NAME_OFFSET = 0x0e;
+const NAME_LEN    = 12;
+const CH_COUNT_OFFSET = 0x0d;
+
+function readPrsName(bytes) {
+  let name = '';
+  for (let i = 0; i < NAME_LEN; i++) {
+    if (bytes[NAME_OFFSET + i] === 0) break;
+    name += String.fromCharCode(bytes[NAME_OFFSET + i]);
+  }
+  return name.trim();
+}
+
+export async function POST({ request, cookies }) {
+  const session = verifySession(cookies.get(SESSION_COOKIE));
+  if (!session) throw error(401, 'Unauthorized');
+
+  const body = await request.json().catch(() => null);
+  if (!body?.id || !body?.data) throw error(400, 'Missing id or data');
+
+  const record = getPersonalityById(body.id);
+  if (!record) throw error(404, 'Personality not found');
+  if (record.deleted_at) throw error(400, 'Cannot replace binary of a deleted personality');
+
+  const bytes = new Uint8Array(body.data);
+  if (bytes.length !== FILE_SIZE) {
+    throw error(400, `Invalid file size: expected ${FILE_SIZE} bytes, got ${bytes.length}`);
+  }
+
+  const newPrsName     = readPrsName(bytes);
+  const newChannelCount = bytes[CH_COUNT_OFFSET];
+
+  // Preview mode — return diff without saving
+  if (body.preview) {
+    return json({
+      preview: true,
+      current: {
+        prs_name:      record.prs_name ?? '',
+        channel_count: record.channel_count
+      },
+      incoming: {
+        prs_name:      newPrsName,
+        channel_count: newChannelCount
+      }
+    });
+  }
+
+  // Commit — replace the binary
+  replacePersonalityBinary(body.id, {
+    data:          Buffer.from(bytes),
+    prs_name:      newPrsName,
+    channel_count: newChannelCount
+  });
+
+  return json({ success: true, prs_name: newPrsName, channel_count: newChannelCount });
+}