make sure username < 20 characters

src/composables/useDemoAccountGenerator.ts

@@ -22,16 +22,29 @@ export function useDemoAccountGenerator() {
     return password
   }
 
-  // Generate unique username and random password
+  // Generate unique username < 20 characters long
-  function generateCredentials(): GeneratedCredentials {
+  function generateUsername() {
-    // Use only 2 dictionaries to keep username shorter
+    const maxLength = 20;
     const numberDictionary = NumberDictionary.generate({ min: 100, max: 999 });
+
+    while (true) {
       const username = uniqueNamesGenerator({
         dictionaries: [adjectives, animals, numberDictionary],
         separator: '',
         length: 3,
         style: 'capital'
-    })
+      });
+
+      if (username.length <= maxLength) {
+        return username;
+      }
+      // otherwise reroll
+    }
+  }
+
+  // Generate unique username and random password
+  function generateCredentials(): GeneratedCredentials {
+    const username = generateUsername()
 
     const password = generateRandomPassword()
     const email = `${username}@demo.local`