src/app/auth.service.ts

// src/app/auth.service.ts
import { Injectable } from '@angular/core';

@Injectable({
  providedIn: 'root'  // This makes the service available globally in the app
})
export class AuthService {

  constructor() { }

  // Sign-up method to handle user registration
  signUp(name: string, role: string, email: string, password: string): Promise<any> {
    return new Promise((resolve) => {
      // Simulating storing user data in localStorage
      const user = { name, role, email, password };
      localStorage.setItem('user', JSON.stringify(user)); // Save user data in localStorage
      localStorage.setItem('userRole', role);  // Save only the role in localStorage (for later use)
      resolve('User signed up');
    });
  }

  // Sign-in method to handle user login
  signIn(email: string, password: string): Promise<any> {
    return new Promise((resolve, reject) => {
      const user = JSON.parse(localStorage.getItem('user') || '{}');
      // Check if email and password match the stored data
      if (user.email === email && user.password === password) {
        resolve('User signed in');
      } else {
        reject('Invalid credentials');
      }
    });
  }

  // Helper methods to manage user session and check if the user is logged in
  isLoggedIn(): boolean {
    return !!localStorage.getItem('user');
  }

  // Get the user's role from localStorage
  getUserRole(): string | null {
    return localStorage.getItem('userRole');
  }

  // Logout function to clear the session
  logout(): void {
    localStorage.removeItem('user');
    localStorage.removeItem('userRole');
  }
}