refactor(signal): share rpc context

src/signal/rpc-context.ts

@@ -0,0 +1,24 @@
+import { loadConfig } from "../config/config.js";
+import { resolveSignalAccount } from "./accounts.js";
+
+export function resolveSignalRpcContext(
+  opts: { baseUrl?: string; account?: string; accountId?: string },
+  accountInfo?: ReturnType<typeof resolveSignalAccount>,
+) {
+  const hasBaseUrl = Boolean(opts.baseUrl?.trim());
+  const hasAccount = Boolean(opts.account?.trim());
+  const resolvedAccount =
+    accountInfo ||
+    (!hasBaseUrl || !hasAccount
+      ? resolveSignalAccount({
+          cfg: loadConfig(),
+          accountId: opts.accountId,
+        })
+      : undefined);
+  const baseUrl = opts.baseUrl?.trim() || resolvedAccount?.baseUrl;
+  if (!baseUrl) {
+    throw new Error("Signal base URL is required");
+  }
+  const account = opts.account?.trim() || resolvedAccount?.config.account?.trim();
+  return { baseUrl, account };
+}