feat(account): add ChangePasswordFormComponent

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

APP/src/app/features/account/components/change-password-form/change-password-form.component.spec.ts

@@ -0,0 +1,85 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { of, throwError } from 'rxjs';
+import { ChangePasswordFormComponent } from './change-password-form.component';
+import { AuthService } from '../../../../shared/services/auth.service';
+import { ToastService } from '../../../../core/services/toast.service';
+
+describe('ChangePasswordFormComponent', () => {
+  let fixture: ComponentFixture<ChangePasswordFormComponent>;
+  let component: ChangePasswordFormComponent;
+  let authSpy: jasmine.SpyObj<AuthService>;
+  let toastSpy: jasmine.SpyObj<ToastService>;
+
+  beforeEach(async () => {
+    authSpy = jasmine.createSpyObj<AuthService>('AuthService', ['changePassword']);
+    toastSpy = jasmine.createSpyObj<ToastService>('ToastService', ['success', 'error']);
+
+    await TestBed.configureTestingModule({
+      imports: [ChangePasswordFormComponent],
+      providers: [
+        { provide: AuthService, useValue: authSpy },
+        { provide: ToastService, useValue: toastSpy },
+      ],
+    }).compileComponents();
+
+    fixture = TestBed.createComponent(ChangePasswordFormComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  const fill = (current: string, next: string, confirm: string) => {
+    component.form.setValue({
+      currentPassword: current,
+      newPassword: next,
+      confirmPassword: confirm,
+    });
+  };
+
+  it('is invalid when the new password is weak', () => {
+    fill('Old1234!', 'weak', 'weak');
+    expect(component.form.invalid).toBeTrue();
+  });
+
+  it('is invalid when confirm does not match', () => {
+    fill('Old1234!', 'New1234!', 'Other1234!');
+    expect(component.form.invalid).toBeTrue();
+  });
+
+  it('is invalid when the new password equals the current password', () => {
+    fill('Same1234!', 'Same1234!', 'Same1234!');
+    expect(component.form.invalid).toBeTrue();
+  });
+
+  it('is valid for a strong, matching, different new password', () => {
+    fill('Old1234!', 'New1234!', 'New1234!');
+    expect(component.form.valid).toBeTrue();
+  });
+
+  it('does not call the service when submitting an invalid form', () => {
+    fill('Old1234!', 'weak', 'weak');
+    component.onSubmit();
+    expect(authSpy.changePassword).not.toHaveBeenCalled();
+  });
+
+  it('calls the service with current+new and shows success + resets on 204', () => {
+    authSpy.changePassword.and.returnValue(of(void 0));
+    fill('Old1234!', 'New1234!', 'New1234!');
+
+    component.onSubmit();
+
+    expect(authSpy.changePassword).toHaveBeenCalledWith('Old1234!', 'New1234!');
+    expect(toastSpy.success).toHaveBeenCalled();
+    expect(component.form.get('newPassword')?.value).toBeNull();
+  });
+
+  it('shows the server error message on failure', () => {
+    authSpy.changePassword.and.returnValue(
+      throwError(() => ({ error: { message: 'Incorrect password.' } }))
+    );
+    fill('Wrong1234!', 'New1234!', 'New1234!');
+
+    component.onSubmit();
+
+    expect(toastSpy.error).toHaveBeenCalledWith('Incorrect password.');
+  });
+});

APP/src/app/features/account/components/change-password-form/change-password-form.component.ts

@@ -0,0 +1,113 @@
+import { Component } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { FormBuilder, FormGroup, Validators, ReactiveFormsModule } from '@angular/forms';
+import { InputsModule } from '@progress/kendo-angular-inputs';
+import { LabelModule } from '@progress/kendo-angular-label';
+import { ButtonsModule } from '@progress/kendo-angular-buttons';
+import { AuthService } from '../../../../shared/services/auth.service';
+import { ToastService } from '../../../../core/services/toast.service';
+import {
+  passwordStrengthValidator,
+  passwordMatchValidator,
+} from '../../validators/password.validators';
+
+@Component({
+  selector: 'app-change-password-form',
+  standalone: true,
+  imports: [
+    CommonModule, ReactiveFormsModule,
+    InputsModule, LabelModule, ButtonsModule,
+  ],
+  template: `
+<form [formGroup]="form" class="k-form k-form-vertical" (ngSubmit)="onSubmit()">
+  <div class="grid grid-cols-1 gap-y-3 max-w-md">
+
+    <kendo-formfield>
+      <kendo-label text="Current Password *"></kendo-label>
+      <kendo-textbox formControlName="currentPassword" type="password"
+        [clearButton]="false"></kendo-textbox>
+      <kendo-formerror *ngIf="form.get('currentPassword')?.errors?.['required']">
+        Required.
+      </kendo-formerror>
+    </kendo-formfield>
+
+    <kendo-formfield>
+      <kendo-label text="New Password *"></kendo-label>
+      <kendo-textbox formControlName="newPassword" type="password"
+        [clearButton]="false"></kendo-textbox>
+      <kendo-formerror *ngIf="form.get('newPassword')?.errors?.['required']">
+        Required.
+      </kendo-formerror>
+      <kendo-formerror *ngIf="form.get('newPassword')?.errors?.['passwordStrength']">
+        Must be at least 8 characters with an uppercase letter, a lowercase letter,
+        a digit, and a special character.
+      </kendo-formerror>
+    </kendo-formfield>
+
+    <kendo-formfield>
+      <kendo-label text="Confirm New Password *"></kendo-label>
+      <kendo-textbox formControlName="confirmPassword" type="password"
+        [clearButton]="false"></kendo-textbox>
+      <kendo-formerror *ngIf="form.get('confirmPassword')?.errors?.['required']">
+        Required.
+      </kendo-formerror>
+      <kendo-formerror *ngIf="form.errors?.['mismatch'] && form.get('confirmPassword')?.touched">
+        Passwords do not match.
+      </kendo-formerror>
+      <kendo-formerror *ngIf="form.errors?.['sameAsCurrent'] && form.get('newPassword')?.touched">
+        New password must be different from the current password.
+      </kendo-formerror>
+    </kendo-formfield>
+
+    <div class="mt-2">
+      <button kendoButton themeColor="primary" type="submit"
+        [disabled]="form.invalid || submitting">
+        Change Password
+      </button>
+    </div>
+
+  </div>
+</form>
+  `,
+})
+export class ChangePasswordFormComponent {
+  form: FormGroup;
+  submitting = false;
+
+  constructor(
+    private fb: FormBuilder,
+    private authService: AuthService,
+    private toast: ToastService,
+  ) {
+    this.form = this.fb.group(
+      {
+        currentPassword: ['', [Validators.required]],
+        newPassword:     ['', [Validators.required, passwordStrengthValidator()]],
+        confirmPassword: ['', [Validators.required]],
+      },
+      { validators: passwordMatchValidator() },
+    );
+  }
+
+  onSubmit(): void {
+    if (this.form.invalid) {
+      this.form.markAllAsTouched();
+      return;
+    }
+
+    this.submitting = true;
+    const { currentPassword, newPassword } = this.form.value;
+
+    this.authService.changePassword(currentPassword, newPassword).subscribe({
+      next: () => {
+        this.toast.success('Password changed successfully.');
+        this.form.reset();
+        this.submitting = false;
+      },
+      error: (err) => {
+        this.toast.error(err?.error?.message || 'Failed to change password.');
+        this.submitting = false;
+      },
+    });
+  }
+}