chore: move getLoginPromptHTML to the utils

Author: yaroslav8765

adminforth/modules/restApi.ts

@@ -13,7 +13,7 @@ import {
   IAdminForthAndOrFilter,
 } from "../types/Back.js";
 
-import { ADMINFORTH_VERSION, listify, md5hash } from './utils.js';
+import { ADMINFORTH_VERSION, listify, md5hash, getLoginPromptHTML } from './utils.js';
 
 import AdminForthAuth from "../auth.js";
 import { ActionCheckSource, AdminForthConfigMenuItem, AdminForthDataTypes, AdminForthFilterOperators, AdminForthResourceCommon, AdminForthResourcePages,
@@ -210,7 +210,7 @@ export default class AdminForthRestAPI implements IAdminForthRestAPI {
         const resource = this.adminforth.config.resources.find((res) => res.resourceId === this.adminforth.config.auth.usersResourceId);
         const usernameColumn = resource.columns.find((col) => col.name === usernameField);
 
-        let loginPromptHTML = await getLoginPromptHTML(this.adminforth.config.auth.loginPromptHTML);
+        const loginPromptHTML = await getLoginPromptHTML(this.adminforth.config.auth.loginPromptHTML);
 
         return {
           brandName: this.adminforth.config.customization.brandName,
@@ -229,17 +229,6 @@ export default class AdminForthRestAPI implements IAdminForthRestAPI {
       },
     });
 
-    async function getLoginPromptHTML(prompt) {
-        if(typeof prompt === 'function') {
-          const result = await prompt();
-          if(result !== undefined){
-            return result;
-          }
-          return "";
-        } else {
-          return prompt;
-        }
-    }
     server.endpoint({
       method: 'GET',
       path: '/get_base_config',
@@ -303,7 +292,7 @@ export default class AdminForthRestAPI implements IAdminForthRestAPI {
 
         const announcementBadge: AnnouncementBadgeResponse = this.adminforth.config.customization.announcementBadge?.(adminUser);
 
-        let loginPromptHTML = await getLoginPromptHTML(this.adminforth.config.auth.loginPromptHTML);
+        const loginPromptHTML = await getLoginPromptHTML(this.adminforth.config.auth.loginPromptHTML);
 
 
         const publicPart = {

adminforth/modules/utils.ts

@@ -3,6 +3,7 @@ import { fileURLToPath } from 'url';
 import fs from 'fs';
 import Fuse from 'fuse.js';
 import crypto from 'crypto';
+import AdminForth, { AdminForthConfig } from '../index.js';
 // @ts-ignore-next-line
 
 
@@ -158,6 +159,17 @@ const csscolors = {
 }
 
 
+export async function getLoginPromptHTML(prompt) {
+  if(typeof prompt === 'function') {
+    const result = await prompt();
+    if(result !== undefined){
+      return result;
+    }
+    return "";
+  } else {
+    return prompt;
+  }
+}
 
 export function guessLabelFromName(name) {
   if (name.includes('_')) {

dev-demo/index.ts

@@ -78,7 +78,12 @@ export const admin = new AdminForth({
     loginBackgroundImage: 'https://images.unsplash.com/photo-1534239697798-120952b76f2b?q=80&w=3389&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D',
     loginBackgroundPosition: '1/2', // over, 3/4, 2/5, 3/5 (tailwind grid)
     demoCredentials: "adminforth:adminforth",  // never use it for production
-    loginPromptHTML: "Use email <b>adminforth</b> and password <b>adminforth</b> to login",
+    loginPromptHTML: async () => { 
+      const adminforthUserExists = await admin.resource("users").count(Filters.EQ('email', 'adminforth')) > 0;
+      if (adminforthUserExists) {
+        return "Please use <b>adminforth</b> as username and <b>adminforth</b> as password"
+      }
+    },
     // loginBackgroundImage: '@@/pho.jpg',
     rememberMeDays: 30,
     beforeLoginConfirmation: [async ({adminUser, adminforth, extra}) => {
@@ -202,7 +207,7 @@ export const admin = new AdminForth({
     },
     {
       id: 'ch',
-      url: 'clickhouse://demo:demo@localhost:8125/demo',
+      url: 'clickhouse://demo:demo@localhost:8124/demo',
     },
     {
       id: 'mysql',