From f3ff45e1faeec226b7272cd7e4458ac9687800df Mon Sep 17 00:00:00 2001
From: 42 <37006258+MirrorCY@users.noreply.github.com>
Date: Sun, 28 Jan 2024 06:00:49 +0000
Subject: [PATCH] feat(core): warn when broadcast with channels but not found

---
 packages/core/src/database.ts | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/packages/core/src/database.ts b/packages/core/src/database.ts
index 8f1bbf014..967a32680 100644
--- a/packages/core/src/database.ts
+++ b/packages/core/src/database.ts
@@ -1,9 +1,11 @@
 import * as utils from '@koishijs/utils'
 import { defineProperty, Dict, MaybeArray } from 'cosmokit'
 import { Database, Driver, Update } from '@minatojs/core'
-import { Fragment, Schema, Universal } from '@satorijs/core'
+import { Fragment, Logger, Schema, Universal } from '@satorijs/core'
 import { Context, Plugin } from './context'
 
+const logger = new Logger('database')
+
 declare module './context' {
   interface Events {
     'model'(name: keyof Tables): void
@@ -198,7 +200,12 @@ export class DatabaseService extends Database<Tables> {
 
     return (await Promise.all(this.app.bots.map((bot) => {
       const targets = assignMap[bot.platform]?.[bot.selfId]
-      if (!targets) return Promise.resolve([])
+      if (!targets) {
+        if (channels) logger.warn(
+          `no channel found for ${channels}, see https://koishi.chat/api/core/context.html#ctx-broadcast for more details.`
+        )
+        return Promise.resolve([])
+      }
       const sessions = targets.map(({ id, guildId, locales }) => {
         const session = bot.session({
           type: 'message',