chore(module_manager): don't check remaining handlers if a specific s…

…ymbol was returned (#230) Closes #66.
xorgram · Jul 27, 2022 · 6ec43f5 · 6ec43f5
1 parent 0773eb3
commit 6ec43f5
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Showing 2 changed files with 10 additions and 3 deletions.
diff --git a/handlers/handler.ts b/handlers/handler.ts
@@ -1,5 +1,7 @@
 import { NewMessageEvent, TelegramClient } from "$grm";
 
+export const End = Symbol();
+
 export interface HandlerFuncParams {
   client: TelegramClient;
   event: NewMessageEvent;
@@ -10,5 +12,7 @@ export abstract class Handler {
     { client, event }: HandlerFuncParams,
   ): Promise<boolean> | boolean;
 
-  abstract handle({ client, event }: HandlerFuncParams): Promise<void>;
+  abstract handle(
+    { client, event }: HandlerFuncParams,
+  ): Promise<void | typeof End>;
 }
diff --git a/module_manager.ts b/module_manager.ts
@@ -1,6 +1,6 @@
 import { Api, NewMessageEvent, TelegramClient } from "$grm";
 import { join, resolve, toFileUrl } from "./deps.ts";
-import { CommandHandler } from "./handlers/mod.ts";
+import { CommandHandler, End } from "./handlers/mod.ts";
 import { updateMessage } from "./helpers.ts";
 import { getHelp, isModule, Module } from "./module.ts";
 
@@ -200,7 +200,10 @@ export class ModuleManager {
       for (const handler of handlers) {
         if (await handler.check({ client: this.client, event })) {
           try {
-            await handler.handle({ client: this.client, event });
+            const result = await handler.handle({ client: this.client, event });
+            if (typeof result === "symbol" && result == End) {
+              break;
+            }
           } catch (err) {
             console.error(err);
             try {