import { CommonModule } from '@angular/common';
import { HttpClientModule } from '@angular/common/http';
import { FlexLayoutModule } from '@angular/flex-layout';
import {jwtDecode} from 'jwt-decode';
 
@Component({
  selector: 'app-login',
  standalone: true,
  imports: [
    MaterialModule,
    ReactiveFormsModule,
    RouterLink,
    CommonModule,
    HttpClientModule,
    FlexLayoutModule   
  ],
  templateUrl: './login.component.html',
  styleUrls: ['./login.component.css']
})
export class LoginComponent {
 
  loginFormGroup: FormGroup;
  isLoading: boolean = false;
 
  constructor(
    private router: Router,
    private userService: UserService,
    private fb: FormBuilder,
    private snackBar: MatSnackBar
  ) { 
    this.loginFormGroup = this.fb.group({
      email: ['', [Validators.required, Validators.email]],
      password: ['', Validators.required],
    });
  }
 
  ngOnInit() {}
 
  async LoginUser() {
    if (this.loginFormGroup.valid) {
      this.isLoading = true;
  
      this.userService.LoginUser(this.loginFormGroup.value).subscribe({
        next: (result: any) => {
          if (result && result.token) {
            localStorage.setItem('User', JSON.stringify(result));
  
            // Decode the JWT token to extract user information
            const decodedToken: any = jwtDecode(result.token);
            console.log('Decoded Token:', decodedToken);
 
            const userId = decodedToken.userId;
            const userTypeID = decodedToken.User_Type_ID;
            console.log('User Type ID:', userTypeID);
            console.log('User Type ID:', userTypeID);
            
            
            this.loginFormGroup.reset();
            
            // Navigate based on user type
            if (userTypeID === "1") {  // Ensure userTypeID is compared as string
              this.router.navigateByUrl(`/OwnerHome/${userId}`);
            } else if (userTypeID === "2") {
              this.router.navigateByUrl(`/EmployeeHome/${userId}`);
            } else if (userTypeID === "3") {
              this.router.navigateByUrl(`/Home/${userId}`);
            } else {
              this.snackBar.open('Error: Invalid user type: Please register as an authorized user', 'Close', { duration: 5000 });
            }
          } else {
            this.snackBar.open('Login failed', 'Close', { duration: 5000 });
          }
        },
        error: () => {
          this.isLoading = false;
          this.snackBar.open('Login failed', 'Close', { duration: 5000 });
        },
        complete: () => {
          this.isLoading = false;
        }
      });
    }
  }
}