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david aa8f7af55d feat: implement offline sync endpoints with Last-Write-Wins strategy
Add comprehensive offline synchronization support for habits and entries:

## Infrastructure (Phase 1)
- Add UpdatedAt and DeletedAt timestamps to Habit and HabitEntry entities
- Implement soft delete with Delete(), Touch(), and IsDeleted() methods
- Create SQL migration with optimized composite indexes for sync queries
- Add GetChangesSince() and SoftDelete() to both repositories
- Update all Find* methods to exclude soft-deleted records
- 13 comprehensive TDD tests for sync repository methods

## HTTP Endpoints (Phase 2)
- GET /api/v1/sync/changes: retrieve all changes since timestamp
- POST /api/v1/sync/batch: apply client changes with conflict resolution
- Implement Last-Write-Wins strategy using UpdatedAt timestamps
- Add authentication and rate limiting (100 req/min)
- Validate user ownership for all sync operations
- 9 tests for sync handlers (3 queries + 6 commands)

## Technical Details
- Composite indexes: (user_id, updated_at) for optimal query performance
- No pagination: atomic sync operations for data consistency
- Upsert behavior: create resources if not found on server
- DTOs with full entity state including timestamps
- Swagger documentation updated for new endpoints

All 220+ tests passing ✓
2025-12-12 00:11:46 +01:00

30 lines
1.0 KiB
Go

package repositories
import (
"context"
"time"
"apocapoc-api/internal/domain/entities"
)
type HabitEntryChanges struct {
Created []*entities.HabitEntry
Updated []*entities.HabitEntry
Deleted []string
}
type HabitEntryRepository interface {
Create(ctx context.Context, entry *entities.HabitEntry) error
FindByID(ctx context.Context, id string) (*entities.HabitEntry, error)
FindByHabitID(ctx context.Context, habitID string) ([]*entities.HabitEntry, error)
FindByHabitIDAndDateRange(ctx context.Context, habitID string, from, to time.Time) ([]*entities.HabitEntry, error)
FindByUserID(ctx context.Context, userID string) ([]*entities.HabitEntry, error)
FindPendingByHabitID(ctx context.Context, habitID string, beforeDate time.Time) ([]*entities.HabitEntry, error)
Update(ctx context.Context, entry *entities.HabitEntry) error
Delete(ctx context.Context, id string) error
// Sync methods
GetChangesSince(ctx context.Context, userID string, since time.Time) (*HabitEntryChanges, error)
SoftDelete(ctx context.Context, id string) error
}