feat: add validateLength util

src/helpers/messages/send_message.ts

@@ -10,6 +10,7 @@ import { PermissionStrings } from "../../types/permissions/permission_strings.ts
 import { endpoints } from "../../util/constants.ts";
 import { requireBotChannelPermissions } from "../../util/permissions.ts";
 import { camelKeysToSnakeCase } from "../../util/utils.ts";
+import { validateLength } from "../../util/validate_length.ts";
 
 /** Send a message to the channel. Requires SEND_MESSAGES permission. */
 export async function sendMessage(
@@ -48,7 +49,7 @@ export async function sendMessage(
   }
 
   // Use ... for content length due to unicode characters and js .length handling
-  if (content.content && [...content.content].length > 2000) {
+  if (content.content && !validateLength(content.content, { max: 2000 })) {
     throw new Error(Errors.MESSAGE_MAX_LENGTH);
   }
 

src/helpers/webhooks/create_webhook.ts

@@ -6,6 +6,7 @@ import { DiscordWebhook } from "../../types/webhooks/webhook.ts";
 import { endpoints } from "../../util/constants.ts";
 import { requireBotChannelPermissions } from "../../util/permissions.ts";
 import { snakeKeysToCamelCase, urlToBase64 } from "../../util/utils.ts";
+import { validateLength } from "../../util/validate_length.ts";
 
 /**
  * Create a new webhook. Requires the MANAGE_WEBHOOKS permission. Returns a webhook object on success. Webhook names follow our naming restrictions that can be found in our Usernames and Nicknames documentation, with the following additional stipulations:
@@ -21,9 +22,7 @@ export async function createWebhook(
   if (
     // Specific usernames that discord does not allow
     options.name === "clyde" ||
-    // Character limit checks. [...] checks are because of js unicode length handling
-    [...options.name].length < 2 ||
-    [...options.name].length > 32
+    !validateLength(options.name, { min: 2, max: 32 })
   ) {
     throw new Error(Errors.INVALID_WEBHOOK_NAME);
   }