docs(01-02): complete authentication models and interfaces plan

Tasks completed: 3/3
- AuthUser data model with Supabase integration
- Custom authentication exceptions with comprehensive error handling
- AuthRepository interface defining all authentication operations

SUMMARY: .planning/phases/01-authentication/01-02-SUMMARY.md
This commit is contained in:
Dani B
2026-01-28 09:47:01 -05:00
parent 58f2b5bce4
commit 752443d27b
2 changed files with 166 additions and 15 deletions

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# Sage Project State # Sage Project State
**Last updated:** 2026-01-27 **Last updated:** 2026-01-28
**Status:** Roadmap complete, ready for Phase 1 planning **Status:** Phase 1 in progress
--- ---
## Current Focus ## Current Position
**Phase:** Roadmap created (not yet executing phases) Phase: 1 of 12 (Authentication)
**Action:** Ready for `/gsd:plan-phase 1` to begin Phase 1 (Auth & Account Basics) planning Plan: 2 of 3 in current phase
Status: In progress
Last activity: 2026-01-28 - Completed 01-02-PLAN.md
Progress: █████░░░░░░░░░░░░░░░ 17%
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## Session Context ## Session Context
**This session:** **This session:**
- Analyzed PROJECT.md, REQUIREMENTS.md, research/SUMMARY.md - Completed Phase 1 Plan 02 (Authentication Models)
- Derived 12-phase structure from 62 v1 requirements - Created AuthUser data model with Supabase integration
- Created full ROADMAP.md with success criteria, dependencies, mapping - Implemented comprehensive custom exception hierarchy
- Created STATE.md project tracking document - Defined AuthRepository interface with full authentication capabilities
- Updated REQUIREMENTS.md traceability table - Established clean architecture patterns for authentication
**Tokens used:** ~24K (analysis + writing) **Tokens used:** ~30K (analysis + writing)
**Files created/updated:** **Files created/updated:**
- `.planning/ROADMAP.md` ✓ (12 phases, 62 requirements, 100% coverage) - `.planning/phases/01-authentication/01-02-SUMMARY.md` ✓ (authentication models summary)
- `.planning/STATE.md` ✓ (project state tracking) - `lib/features/authentication/data/models/auth_user.dart` ✓ (AuthUser data model)
- `.planning/REQUIREMENTS.md` ✓ (traceability table updated) - `lib/core/errors/auth_exceptions.dart` ✓ (custom exception hierarchy)
- `lib/features/authentication/domain/repositories/auth_repository.dart` ✓ (auth repository interface)
--- ---
*State document created: 2026-01-27* *State document created: 2026-01-27*
*Roadmap approved for planning: No (awaiting user confirmation)* *Phase 1 Plan 1 completed: 2026-01-28*

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---
phase: 01-authentication
plan: 02
subsystem: auth
tags: [dart, flutter, authentication, clean-architecture, repository-pattern, error-handling]
# Dependency graph
requires:
- phase: 01-authentication
plan: 01
provides: Flutter project with Supabase integration
provides:
- AuthUser data model for user representation
- Custom exception hierarchy for authentication errors
- AuthRepository interface for auth operations abstraction
affects: [01-03, 02-01, 03-01]
# Tech tracking
tech-stack:
added: []
patterns: [clean-architecture, repository-pattern, factory-constructors, exception-hierarchy]
key-files:
created:
- lib/features/authentication/data/models/auth_user.dart
- lib/core/errors/auth_exceptions.dart
- lib/features/authentication/domain/repositories/auth_repository.dart
modified: []
key-decisions:
- "AuthUser extends Supabase User with fromSupabase() factory for clean conversion"
- "Comprehensive exception hierarchy with specific types for each auth error scenario"
- "AuthRepository interface provides full auth API including OAuth and profile management"
- "AuthExceptionFactory maps Supabase errors to custom exceptions with user-friendly messages"
patterns-established:
- "Pattern 1: Factory constructors for data model conversion from external sources"
- "Pattern 2: Exception factory pattern for mapping external errors to internal types"
- "Pattern 3: Abstract repository interface following clean architecture principles"
# Metrics
duration: 30 min
completed: 2026-01-28
---
# Phase 1 Plan 2: Authentication Models and Interfaces Summary
**AuthUser model with Supabase integration, comprehensive exception hierarchy, and clean repository interface for authentication operations**
## Performance
- **Duration:** 30 min
- **Started:** 2026-01-28T14:06:15Z
- **Completed:** 2026-01-28T14:37:00Z
- **Tasks:** 3
- **Files modified:** 4
## Accomplishments
- Created AuthUser data model with proper null safety and Supabase integration
- Implemented comprehensive custom exception hierarchy for all authentication scenarios
- Defined complete AuthRepository interface with full authentication capabilities
- Established clean architecture patterns for data and domain layers
## Task Commits
Each task was committed atomically:
1. **Task 1: Create AuthUser model** - `c45bb22` (feat)
2. **Task 2: Create custom auth exceptions** - `b46cabe` (feat)
3. **Task 3: Create AuthRepository interface** - `06e3ea4` (feat)
4. **Task 4: Fix compilation errors** - `58f2b5b` (fix)
**Plan metadata:** (will be committed with planning docs)
## Files Created/Modified
- `lib/features/authentication/data/models/auth_user.dart` - AuthUser data model with Supabase conversion factory
- `lib/core/errors/auth_exceptions.dart` - Custom exception hierarchy with factory for error mapping
- `lib/features/authentication/domain/repositories/auth_repository.dart` - Abstract repository interface for auth operations
## Decisions Made
- AuthUser wraps Supabase User to maintain clean separation between data sources and domain models
- Exception hierarchy provides specific types for each authentication failure scenario
- AuthRepository interface includes comprehensive methods including OAuth, profile management, and session handling
- AuthExceptionFactory converts Supabase errors to user-friendly messages with proper error codes
- Used factory constructors for consistent data model conversion patterns
## Deviations from Plan
### Auto-fixed Issues
**1. [Rule 1 - Bug] Fixed DateTime parsing in AuthUser.fromSupabase()**
- **Found during:** Task 3 (AuthRepository interface creation)
- **Issue:** Supabase User timestamp fields couldn't be directly assigned to DateTime type
- **Fix:** Used DateTime.tryParse() with null safety handling for createdAt and lastSignInAt fields
- **Files modified:** lib/features/authentication/data/models/auth_user.dart
- **Verification:** Flutter analysis passes, no type assignment errors
- **Committed in:** 58f2b5b (Task 4 commit)
**2. [Rule 3 - Blocking] Fixed import path in AuthRepository**
- **Found during:** Task 3 (AuthRepository interface creation)
- **Issue:** Relative import path to auth_exceptions.dart was incorrect
- **Fix:** Updated import path to reach core/errors directory correctly
- **Files modified:** lib/features/authentication/domain/repositories/auth_repository.dart
- **Verification:** Import resolves correctly, compilation succeeds
- **Committed in:** 58f2b5b (Task 4 commit)
**3. [Rule 2 - Missing Critical] Added UnknownAuthException for error factory**
- **Found during:** Task 2 (Custom auth exceptions creation)
- **Issue:** AuthExceptionFactory tried to instantiate abstract AuthException class for unknown errors
- **Fix:** Added UnknownAuthException class extending AuthException for fallback error cases
- **Files modified:** lib/core/errors/auth_exceptions.dart
- **Verification:** AuthExceptionFactory now compiles without instantiation errors
- **Committed in:** 58f2b5b (Task 4 commit)
---
**Total deviations:** 3 auto-fixed (1 bug, 1 missing critical, 1 blocking)
**Impact on plan:** All fixes were necessary for correct compilation and functionality. No scope creep.
## Issues Encountered
- Flutter/Dart not in system PATH required adding Flutter bin directory to PATH for analysis
- DateTime type conversion from Supabase User fields required safe parsing with null checks
- Abstract AuthException class couldn't be instantiated, requiring concrete fallback class
## User Setup Required
None - no external service configuration required.
## Next Phase Readiness
Authentication domain foundation is established with:
- Clean AuthUser model ready for Supabase integration
- Comprehensive error handling system for all auth scenarios
- Complete repository interface ready for implementation
Ready for Phase 1 Plan 3: Supabase Authentication Implementation.
---
*Phase: 01-authentication*
*Completed: 2026-01-28*