e632da2344
Implements KTO-01 criteria 1-4, 10 and 11 (client part). Refs #1 Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
115 lines
3.8 KiB
Dart
115 lines
3.8 KiB
Dart
import 'package:freezed_annotation/freezed_annotation.dart';
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import 'package:shuffle/features/auth/domain/auth_failure.dart';
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import 'package:shuffle/features/auth/domain/validation/common_passwords.dart';
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import 'package:shuffle/features/auth/domain/validation/display_name_rule.dart';
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import 'package:shuffle/features/auth/domain/validation/email_format.dart';
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import 'package:shuffle/features/auth/domain/validation/password_policy.dart';
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part 'register_state.freezed.dart';
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/// Form fields of the registration, in reading order.
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enum RegisterField {
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email,
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password,
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displayName,
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ageConfirmation,
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termsAcceptance,
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}
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enum RegisterStatus { editing, submitting }
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/// Values, visibility of errors and submit state of the registration form.
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///
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/// Errors are derived from the values by the domain rules. Which of them are
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/// shown is decided by [visibleFields] (blur, typing in the password field,
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/// submit attempt).
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@freezed
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abstract class RegisterState with _$RegisterState {
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const factory RegisterState({
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@Default('') String email,
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@Default('') String password,
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@Default('') String displayName,
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@Default(false) bool ageConfirmed,
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@Default(false) bool termsAccepted,
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@Default(<RegisterField>{}) Set<RegisterField> visibleFields,
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@Default(RegisterStatus.editing) RegisterStatus status,
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/// Loaded lazily with the first use of the password field.
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CommonPasswordList? commonPasswords,
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/// General failure shown as banner.
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AuthFailure? bannerFailure,
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/// `weak_password` reasons reported by the server, shown at the password.
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List<WeakPasswordReason>? serverPasswordReasons,
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/// The server rejected the address syntax; shown at the email field.
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@Default(false) bool serverEmailInvalid,
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/// Field that should receive focus after a failed submit.
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RegisterField? focusField,
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/// Incremented whenever [focusField] is set, so the screen can react
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/// to repeated requests for the same field.
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@Default(0) int focusRequest,
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}) = _RegisterState;
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const RegisterState._();
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bool get isSubmitting => status == RegisterStatus.submitting;
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EmailError? get emailError => EmailFormat.validate(email);
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PasswordError? get passwordError =>
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PasswordPolicy.validate(password, common: commonPasswords);
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DisplayNameError? get displayNameError =>
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DisplayNameRule.validate(displayName);
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int get displayNameLength => DisplayNameRule.length(displayName);
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bool get ageError => !ageConfirmed;
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bool get termsError => !termsAccepted;
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bool isVisible(RegisterField field) => visibleFields.contains(field);
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/// Local error of [field] (ignoring visibility).
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bool hasError(RegisterField field) => switch (field) {
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RegisterField.email => emailError != null,
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RegisterField.password => password.isEmpty || passwordError != null,
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RegisterField.displayName => displayNameError != null,
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RegisterField.ageConfirmation => ageError,
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RegisterField.termsAcceptance => termsError,
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};
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RegisterField? get firstInvalidField {
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for (final field in RegisterField.values) {
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if (hasError(field)) {
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return field;
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}
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}
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return null;
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}
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// Errors as the screen shows them.
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EmailError? get shownEmailError =>
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isVisible(RegisterField.email) ? emailError : null;
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/// Empty password is "required", otherwise the policy error.
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bool get shownPasswordRequired =>
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isVisible(RegisterField.password) && password.isEmpty;
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PasswordError? get shownPasswordError =>
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isVisible(RegisterField.password) ? passwordError : null;
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DisplayNameError? get shownDisplayNameError =>
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isVisible(RegisterField.displayName) ? displayNameError : null;
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bool get shownAgeError =>
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isVisible(RegisterField.ageConfirmation) && ageError;
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bool get shownTermsError =>
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isVisible(RegisterField.termsAcceptance) && termsError;
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}
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