refactor(zalo): share outbound chunker

src/plugin-sdk/allow-from.ts

@@ -0,0 +1,10 @@
+export function formatAllowFromLowercase(params: {
+  allowFrom: Array<string | number>;
+  stripPrefixRe?: RegExp;
+}): string[] {
+  return params.allowFrom
+    .map((entry) => String(entry).trim())
+    .filter(Boolean)
+    .map((entry) => (params.stripPrefixRe ? entry.replace(params.stripPrefixRe, "") : entry))
+    .map((entry) => entry.toLowerCase());
+}

src/plugin-sdk/config-paths.ts

@@ -0,0 +1,15 @@
+import type { OpenClawConfig } from "../config/config.js";
+
+export function resolveChannelAccountConfigBasePath(params: {
+  cfg: OpenClawConfig;
+  channelKey: string;
+  accountId: string;
+}): string {
+  const channels = params.cfg.channels as unknown as Record<string, unknown> | undefined;
+  const channelSection = channels?.[params.channelKey] as Record<string, unknown> | undefined;
+  const accounts = channelSection?.accounts as Record<string, unknown> | undefined;
+  const useAccountPath = Boolean(accounts?.[params.accountId]);
+  return useAccountPath
+    ? `channels.${params.channelKey}.accounts.${params.accountId}.`
+    : `channels.${params.channelKey}.`;
+}

src/plugin-sdk/index.ts

@@ -126,6 +126,9 @@ export { ToolPolicySchema } from "../config/zod-schema.agent-runtime.js";
 export type { RuntimeEnv } from "../runtime.js";
 export type { WizardPrompter } from "../wizard/prompts.js";
 export { DEFAULT_ACCOUNT_ID, normalizeAccountId } from "../routing/session-key.js";
+export { formatAllowFromLowercase } from "./allow-from.js";
+export { resolveChannelAccountConfigBasePath } from "./config-paths.js";
+export { chunkTextForOutbound } from "./text-chunking.js";
 export type { ChatType } from "../channels/chat-type.js";
 /** @deprecated Use ChatType instead */
 export type { RoutePeerKind } from "../routing/resolve-route.js";

src/plugin-sdk/text-chunking.ts

@@ -0,0 +1,31 @@
+export function chunkTextForOutbound(text: string, limit: number): string[] {
+  if (!text) {
+    return [];
+  }
+  if (limit <= 0 || text.length <= limit) {
+    return [text];
+  }
+  const chunks: string[] = [];
+  let remaining = text;
+  while (remaining.length > limit) {
+    const window = remaining.slice(0, limit);
+    const lastNewline = window.lastIndexOf("\n");
+    const lastSpace = window.lastIndexOf(" ");
+    let breakIdx = lastNewline > 0 ? lastNewline : lastSpace;
+    if (breakIdx <= 0) {
+      breakIdx = limit;
+    }
+    const rawChunk = remaining.slice(0, breakIdx);
+    const chunk = rawChunk.trimEnd();
+    if (chunk.length > 0) {
+      chunks.push(chunk);
+    }
+    const brokeOnSeparator = breakIdx < remaining.length && /\s/.test(remaining[breakIdx]);
+    const nextStart = Math.min(remaining.length, breakIdx + (brokeOnSeparator ? 1 : 0));
+    remaining = remaining.slice(nextStart).trimStart();
+  }
+  if (remaining.length) {
+    chunks.push(remaining);
+  }
+  return chunks;
+}