slate-test-1770505673/services/preferences-api/internal/service/preference.go
rdev-worker 868f79c67a
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build: /implement-feature user-preferences
2026-02-07 23:47:42 +00:00

53 lines
1.7 KiB
Go

// Package service provides business logic / use cases for the application.
package service
import (
"context"
"fmt"
"git.threesix.ai/jordan/slate-test-1770505673/pkg/logging"
"git.threesix.ai/jordan/slate-test-1770505673/services/preferences-api/internal/domain"
"git.threesix.ai/jordan/slate-test-1770505673/services/preferences-api/internal/port"
)
// PreferenceService handles preference-related business logic.
type PreferenceService struct {
repo port.PreferenceRepository
logger *logging.Logger
}
// NewPreferenceService creates a new preference service.
func NewPreferenceService(repo port.PreferenceRepository, logger *logging.Logger) *PreferenceService {
return &PreferenceService{
repo: repo,
logger: logger.WithService("PreferenceService"),
}
}
// Get returns all preferences for a user.
func (s *PreferenceService) Get(ctx context.Context, userID string) (map[string]string, error) {
return s.repo.GetByUserID(ctx, userID)
}
// Upsert validates and persists preferences, then returns the full preference set.
func (s *PreferenceService) Upsert(ctx context.Context, userID string, prefs map[string]string) (map[string]string, error) {
// Validate all keys and values before persisting
for key, value := range prefs {
if err := domain.ValidateKey(key); err != nil {
return nil, fmt.Errorf("%w", err)
}
if err := domain.ValidateValue(key, value); err != nil {
return nil, fmt.Errorf("%w", err)
}
}
if err := s.repo.Upsert(ctx, userID, prefs); err != nil {
return nil, err
}
s.logger.Info("preferences updated", "user_id", userID, "keys_updated", len(prefs))
// Return the full preference set after update
return s.repo.GetByUserID(ctx, userID)
}