feat: notification service

notification/internal/adapters/redisstate/malformed_intent_store.go

@@ -0,0 +1,59 @@
+package redisstate
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"galaxy/notification/internal/service/malformedintent"
+
+	"github.com/redis/go-redis/v9"
+)
+
+// MalformedIntentStore provides the Redis-backed storage used for
+// operator-visible malformed-intent records.
+type MalformedIntentStore struct {
+	client *redis.Client
+	keys   Keyspace
+	ttl    time.Duration
+}
+
+// NewMalformedIntentStore constructs one Redis-backed malformed-intent store.
+func NewMalformedIntentStore(client *redis.Client, ttl time.Duration) (*MalformedIntentStore, error) {
+	if client == nil {
+		return nil, errors.New("new malformed intent store: nil redis client")
+	}
+	if ttl <= 0 {
+		return nil, errors.New("new malformed intent store: non-positive ttl")
+	}
+
+	return &MalformedIntentStore{
+		client: client,
+		keys:   Keyspace{},
+		ttl:    ttl,
+	}, nil
+}
+
+// Record stores entry idempotently by its Redis Stream entry identifier.
+func (store *MalformedIntentStore) Record(ctx context.Context, entry malformedintent.Entry) error {
+	if store == nil || store.client == nil {
+		return errors.New("record malformed intent: nil store")
+	}
+	if ctx == nil {
+		return errors.New("record malformed intent: nil context")
+	}
+	if err := entry.Validate(); err != nil {
+		return fmt.Errorf("record malformed intent: %w", err)
+	}
+
+	payload, err := MarshalMalformedIntent(entry)
+	if err != nil {
+		return fmt.Errorf("record malformed intent: %w", err)
+	}
+	if err := store.client.Set(ctx, store.keys.MalformedIntent(entry.StreamEntryID), payload, store.ttl).Err(); err != nil {
+		return fmt.Errorf("record malformed intent: %w", err)
+	}
+
+	return nil
+}