feat: add possibility to pass function into the loginPromptHTML

adminforth/commands/createApp/templates/index.ts.hbs

@@ -15,6 +15,13 @@ export const admin = new AdminForth({
     rememberMeDays: 30,
     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',
+    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"
+      }
+      return "";
+    },
   },
   customization: {
     brandName: "{{appName}}",

adminforth/modules/restApi.ts

@@ -210,14 +210,21 @@ 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;
+        if(typeof this.adminforth.config.auth.loginPromptHTML === 'function') {
+          loginPromptHTML = await this.adminforth.config.auth.loginPromptHTML();
+        } else {
+          loginPromptHTML = this.adminforth.config.auth.loginPromptHTML;
+        }
+
         return {
           brandName: this.adminforth.config.customization.brandName,
           usernameFieldName: usernameColumn.label,
           loginBackgroundImage: this.adminforth.config.auth.loginBackgroundImage,
           loginBackgroundPosition: this.adminforth.config.auth.loginBackgroundPosition,
           title: this.adminforth.config.customization?.title,
           demoCredentials: this.adminforth.config.auth.demoCredentials,
-          loginPromptHTML: await tr(this.adminforth.config.auth.loginPromptHTML, 'system.loginPromptHTML'),
+          loginPromptHTML: await tr(loginPromptHTML, 'system.loginPromptHTML'),
           loginPageInjections: this.adminforth.config.customization.loginPageInjections,
           globalInjections: {
             everyPageBottom: this.adminforth.config.customization.globalInjections.everyPageBottom,
@@ -290,6 +297,14 @@ export default class AdminForthRestAPI implements IAdminForthRestAPI {
         }
 
         const announcementBadge: AnnouncementBadgeResponse = this.adminforth.config.customization.announcementBadge?.(adminUser);
+
+        let loginPromptHTML;
+        if(typeof this.adminforth.config.auth.loginPromptHTML === 'function') {
+          loginPromptHTML = await this.adminforth.config.auth.loginPromptHTML();
+        } else {
+          loginPromptHTML = this.adminforth.config.auth.loginPromptHTML;
+        }
+
 
         const publicPart = {
           brandName: this.adminforth.config.customization.brandName,
@@ -298,7 +313,7 @@ export default class AdminForthRestAPI implements IAdminForthRestAPI {
           loginBackgroundPosition: this.adminforth.config.auth.loginBackgroundPosition,
           title: this.adminforth.config.customization?.title,
           demoCredentials: this.adminforth.config.auth.demoCredentials,
-          loginPromptHTML: await tr(this.adminforth.config.auth.loginPromptHTML, 'system.loginPromptHTML'),
+          loginPromptHTML: await tr(loginPromptHTML, 'system.loginPromptHTML'),
           loginPageInjections: this.adminforth.config.customization.loginPageInjections,
           rememberMeDays: this.adminforth.config.auth.rememberMeDays,
         }

adminforth/types/Back.ts

@@ -956,7 +956,7 @@ export interface AdminForthInputConfig {
       /**
        * Any prompt to show users on login. Supports HTML.
        */
-      loginPromptHTML?: string,
+      loginPromptHTML?: string | (() => string | Promise<string>)
 
       /**
        * Remember me days for "Remember Me" checkbox on login page.

adminforth/types/Common.ts

@@ -1057,7 +1057,7 @@ export interface AdminForthConfigForFrontend {
   loginBackgroundPosition: string,
   title?: string,
   demoCredentials?: string,
-  loginPromptHTML?: string,
+  loginPromptHTML?: string | (() => string | Promise<string>)
   loginPageInjections: {
     underInputs: Array<AdminForthComponentDeclaration>,
     panelHeader: Array<AdminForthComponentDeclaration>,