---
phase: 01-authentication
plan: 06
subsystem: auth
tags: [password-reset, flutter, supabase, validation, authentication]

# Dependency graph
requires:
  - phase: 01-authentication
    provides: [AuthRepository interface, AuthProvider state management, authentication UI components]
provides:
  - Password update page with comprehensive validation and error handling
  - Enhanced auth repository with password reset token handling
  - Password validation utility for strength checking
  - Reset password confirmation page for token validation
affects: [02-household-creation, authentication flows]

# Tech tracking
tech-stack:
  added: [logger: ^2.0.2]
  patterns: [password strength validation, token-based reset flows, comprehensive error handling]

key-files:
  created:
    - lib/features/authentication/presentation/pages/update_password_page.dart
    - lib/core/utils/password_validator.dart
    - lib/features/authentication/presentation/pages/reset_password_confirm_page.dart
  modified:
    - lib/providers/auth_provider.dart
    - lib/features/authentication/domain/repositories/auth_repository.dart
    - lib/features/authentication/data/repositories/auth_repository_impl.dart
    - lib/core/errors/auth_exceptions.dart
    - pubspec.yaml

key-decisions:
  - "Implemented password strength indicator with real-time visual feedback"
  - "Added comprehensive error handling for all reset failure scenarios"
  - "Created separate confirmation page for reset token validation"
  - "Enhanced repository with proper logging for debugging password flows"

patterns-established:
  - "Pattern: Password validation with strength requirements and visual feedback"
  - "Pattern: Token-based password reset with session validation"
  - "Pattern: Comprehensive error mapping to user-friendly messages"
  - "Pattern: Deep link handling for password reset flows"

# Metrics
duration: 9 min
completed: 2026-01-28
---

# Phase 1: Plan 06 Summary

**Password update system with token validation, comprehensive error handling, and enhanced repository integration.**

## Performance

- **Duration:** 9 min
- **Started:** 2026-01-28T16:59:46Z
- **Completed:** 2026-01-28T17:08:19Z
- **Tasks:** 2
- **Files modified:** 6

## Accomplishments
- Password update page with real-time strength validation and comprehensive error handling
- Enhanced auth repository with proper token validation and logging for password reset flows
- Password validation utility with strength checking and user-friendly feedback
- Reset password confirmation page for token validation before password update
- Comprehensive error mapping for all password reset failure scenarios

## Task Commits

Each task was committed atomically:

1. **Task 1: Create password update page** - `e56dd26` (feat)
2. **Task 2: Update auth repository for password reset** - `eacfa0d` (feat)

**Plan metadata:** pending commit

## Files Created/Modified

- `lib/features/authentication/presentation/pages/update_password_page.dart` - Password update interface with strength validation
- `lib/core/utils/password_validator.dart` - Password strength validation utility
- `lib/features/authentication/presentation/pages/reset_password_confirm_page.dart` - Reset token validation page  
- `lib/providers/auth_provider.dart` - Added updatePasswordFromReset method
- `lib/features/authentication/domain/repositories/auth_repository.dart` - Added updatePasswordFromReset interface
- `lib/features/authentication/data/repositories/auth_repository_impl.dart` - Enhanced with logging and error handling
- `lib/core/errors/auth_exceptions.dart` - Added InvalidTokenException and error mapping
- `pubspec.yaml` - Added logger dependency

## Decisions Made

- Implemented real-time password strength indicator with visual feedback for better UX
- Added comprehensive logging to password reset flows for debugging and monitoring
- Created separate confirmation page to validate reset tokens before password update
- Enhanced error handling to cover all failure scenarios (expired tokens, network issues, weak passwords)
- Added password strength validation both client-side and server-side for security

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered

- Logger package was not in dependencies, added logger: ^2.0.2 to pubspec.yaml for proper logging functionality
- No other issues encountered during implementation

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness

- Password update system complete with deep link handling and validation
- Auth repository enhanced with comprehensive error handling and logging
- All authentication flows now support password reset from email to completion
- Ready for household creation phase (Phase 2)

---
*Phase: 01-authentication*
*Completed: 2026-01-28*