refactor: share multi-account config schema fragments

src/channels/plugins/config-schema.ts

@@ -1,10 +1,25 @@
-import type { ZodTypeAny } from "zod";
+import { z, type ZodTypeAny } from "zod";
 import type { ChannelConfigSchema } from "./types.plugin.js";
 
 type ZodSchemaWithToJsonSchema = ZodTypeAny & {
   toJSONSchema?: (params?: Record<string, unknown>) => unknown;
 };
 
+type ExtendableZodObject = ZodTypeAny & {
+  extend: (shape: Record<string, ZodTypeAny>) => ZodTypeAny;
+};
+
+export const AllowFromEntrySchema = z.union([z.string(), z.number()]);
+
+export function buildCatchallMultiAccountChannelSchema<T extends ExtendableZodObject>(
+  accountSchema: T,
+): T {
+  return accountSchema.extend({
+    accounts: z.object({}).catchall(accountSchema).optional(),
+    defaultAccount: z.string().optional(),
+  }) as T;
+}
+
 export function buildChannelConfigSchema(schema: ZodTypeAny): ChannelConfigSchema {
   const schemaWithJson = schema as ZodSchemaWithToJsonSchema;
   if (typeof schemaWithJson.toJSONSchema === "function") {

src/plugin-sdk/index.ts

@@ -195,6 +195,10 @@ export { formatResolvedUnresolvedNote } from "./resolution-notes.js";
 export { buildChannelSendResult } from "./channel-send-result.js";
 export type { ChannelSendRawResult } from "./channel-send-result.js";
 export { createPluginRuntimeStore } from "./runtime-store.js";
+export {
+  AllowFromEntrySchema,
+  buildCatchallMultiAccountChannelSchema,
+} from "../channels/plugins/config-schema.js";
 export type { ChannelDock } from "../channels/dock.js";
 export { getChatChannelMeta } from "../channels/registry.js";
 export { resolveAllowlistMatchByCandidates } from "../channels/allowlist-match.js";