D2 03 Main Menu

Day 2 · Step 3 — Main menu with capability-driven menu items

Before starting: Ask for:

1. Entity name (PascalCase, e.g., Product, Order, Employee) — REQUIRED
2. Available capabilities (select one or more: search, create, save, delete) — REQUIRED
   • search: Browse/list all records
   • create: Create new records
   • save: Save to database (used with create/edit)
   • delete: Delete records

Use exactly as specified. Menu buttons will be generated based on selected capabilities.

Routing Setup (app.routes.ts) — COMPLETE ROUTING TABLE FOR ALL PAGES:

• Import MenuComponent, all SearchComponents, and all FormComponents
• Add menu as the default/landing page route (path: '')
• Define entity routes for each program: search, create, edit
• This route table is shared by d2-03 (menu), d2-04 (search), and d2-05 (form)

import { Routes } from '@angular/router';
import { MenuComponent } from './pages/menu/menu.component';
import { <Entity>SearchComponent } from './pages/<entity>-search/<entity>-search.component';
import { <Entity>FormComponent } from './pages/<entity>-form/<entity>-form.component';
// Add more imports for additional entities as needed

export const routes: Routes = [
  // Landing page (menu comes first!)
  { path: '', component: MenuComponent },

  // <Entity> CRUD routes
  { path: '<entity>', component: <Entity>SearchComponent },        // Search/list page
  { path: '<entity>/new', component: <Entity>FormComponent },      // Create new record
  { path: '<entity>/:id/edit', component: <Entity>FormComponent }, // Edit existing record

  // Add more entity routes here for additional programs:
  // { path: 'customer', component: CustomerSearchComponent },
  // { path: 'customer/new', component: CustomerFormComponent },
  // { path: 'customer/:id/edit', component: CustomerFormComponent },
];

Route Usage:

• d2-03-main-menu uses { path: '', component: MenuComponent } — landing page
• d2-04-search-delete-page uses /<entity> route and navigates via router.navigate(['/<entity>/new']), router.navigate(['/<entity>', id, 'edit'])
• d2-05-form-page uses /<entity>/new and /<entity>/:id/edit routes

Component TypeScript (capability-driven):

import { Component } from '@angular/core';
import { Router } from '@angular/router';
import { CommonModule } from '@angular/common';

interface MenuItem {
  name: string;
  icon: string;
  path: string;
}

interface Program {
  name: string;
  entity: string;
  icon: string;
  description: string;
  capabilities: string[];
  menuItems: MenuItem[];
}

@Component({
  selector: 'app-menu',
  standalone: true,
  imports: [CommonModule],
  templateUrl: './menu.component.html',
  styleUrls: ['./menu.component.css']
})
export class MenuComponent {
  appTitle = 'CRUD Dashboard';
  appSubtitle = 'Manage your data with ease';

  programs: Program[] = [];

  constructor(private router: Router) {
    this.programs = [
      {
        name: '<Entity>',
        entity: '<entity>',
        icon: '📦',
        description: 'Manage <entity> records',
        capabilities: ['search', 'create', 'save', 'delete'],
        menuItems: this.generateMenuItems('<entity>', ['search', 'create', 'save', 'delete'])
      },
      // Add more programs here:
      // { name: 'Customer', entity: 'customer', icon: '👥', description: 'Manage customer data', capabilities: [...], menuItems: ... }
    ];
  }

  generateMenuItems(entity: string, capabilities: string[]): MenuItem[] {
    const items: MenuItem[] = [];
    
    if (capabilities.includes('search')) {
      items.push({ name: 'Browse', icon: '📋', path: `/${entity}` });
    }
    if (capabilities.includes('create')) {
      items.push({ name: 'Create', icon: '✚', path: `/${entity}/new` });
    }
    
    return items;
  }

  navigate(path: string) {
    this.router.navigate([path]);
  }
}

Template (capability-driven menu with responsive card grid, standard Tailwind classes):

<div class="min-h-screen bg-gradient-to-br from-gray-50 to-gray-100 p-6">
  <!-- Header -->
  <div class="max-w-6xl mx-auto mb-12">
    <div class="text-center mb-8">
      <h1 class="text-5xl font-bold text-gray-900">{{ appTitle }}</h1>
      <p class="text-gray-600 text-xl mt-4">{{ appSubtitle }}</p>
    </div>
  </div>

  <!-- Program Cards Grid -->
  <div class="max-w-6xl mx-auto">
    <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-8">
      @for (program of programs; track program.entity) {
        <div class="bg-white rounded-xl shadow-md hover:shadow-xl transition-shadow p-6">
          <!-- Card Header -->
          <div class="flex items-center mb-4">
            <span class="text-5xl mr-4">{{ program.icon }}</span>
            <div>
              <h3 class="text-2xl font-bold text-gray-900">{{ program.name }}</h3>
              <p class="text-gray-600 text-sm">{{ program.description }}</p>
            </div>
          </div>

          <!-- Capabilities Badge -->
          <div class="flex flex-wrap gap-2 mb-4">
            @for (cap of program.capabilities; track cap) {
              <span class="bg-gray-100 text-gray-700 text-xs font-semibold px-3 py-1 rounded-full">
                {{ cap }}
              </span>
            }
          </div>

          <!-- Divider -->
          <div class="border-b border-gray-200 my-4"></div>

          <!-- Dynamic Menu Buttons -->
          <div class="flex flex-col gap-4">
            @for (item of program.menuItems; track item.name) {
              <button
                (click)="navigate(item.path)"
                [class]="item.name === 'Browse' ? 'w-full text-white font-semibold px-6 py-3 rounded-lg transition bg-blue-500 hover:bg-blue-600' : 'w-full text-white font-semibold px-6 py-3 rounded-lg transition bg-green-500 hover:bg-green-600'"
              >
                {{ item.icon }} {{ item.name }}
              </button>
            }
          </div>

          @if (program.menuItems.length === 0) {
            <p class="text-gray-600 text-sm text-center">No actions available for this program.</p>
          }
        </div>
      }
    </div>
  </div>

  <!-- Footer -->
  <div class="max-w-6xl mx-auto mt-12 text-center">
    <p class="text-gray-600 text-sm">Built with Angular + Tailwind CSS</p>
  </div>
</div>

Design System (Standard Tailwind):

• Spacing: p-6 (padding), mb-4/8/12, gap-2/4/8
• Colors: bg-blue-500/600, bg-green-500/600, text-gray-600, bg-gray-100
• Shadows: shadow-md, hover:shadow-xl (card elevation)
• Typography: text-5xl/2xl, font-bold/semibold
• Layout: grid responsive (1-2-3 columns), flex flex-col
• Interactions: rounded-lg, transition, hover states