feat: bootstrap temporal graph via dht-backed init

pkg/slurp/storage/context_store_inmemory.go

@@ -0,0 +1,155 @@
+package storage
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	slurpContext "chorus/pkg/slurp/context"
+	"chorus/pkg/ucxl"
+)
+
+// inMemoryContextStore offers a lightweight ContextStore implementation suitable for
+// local development and SEC-SLURP bootstrap scenarios. It keeps all context nodes in
+// process memory, providing the minimal surface required by the temporal subsystem until
+// the production storage stack is wired in.
+type inMemoryContextStore struct {
+	mu       sync.RWMutex
+	contexts map[string]*slurpContext.ContextNode
+}
+
+// NewInMemoryContextStore constructs an in-memory ContextStore.
+func NewInMemoryContextStore() ContextStore {
+	return &inMemoryContextStore{
+		contexts: make(map[string]*slurpContext.ContextNode),
+	}
+}
+
+func (s *inMemoryContextStore) StoreContext(ctx context.Context, node *slurpContext.ContextNode, roles []string) error {
+	if node == nil {
+		return nil
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.contexts[node.UCXLAddress.String()] = node
+	return nil
+}
+
+func (s *inMemoryContextStore) RetrieveContext(ctx context.Context, address ucxl.Address, role string) (*slurpContext.ContextNode, error) {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	node, ok := s.contexts[address.String()]
+	if !ok {
+		return nil, ErrNotFound
+	}
+	return node, nil
+}
+
+func (s *inMemoryContextStore) UpdateContext(ctx context.Context, node *slurpContext.ContextNode, roles []string) error {
+	if node == nil {
+		return nil
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.contexts[node.UCXLAddress.String()] = node
+	return nil
+}
+
+func (s *inMemoryContextStore) DeleteContext(ctx context.Context, address ucxl.Address) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	delete(s.contexts, address.String())
+	return nil
+}
+
+func (s *inMemoryContextStore) ExistsContext(ctx context.Context, address ucxl.Address) (bool, error) {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	_, ok := s.contexts[address.String()]
+	return ok, nil
+}
+
+func (s *inMemoryContextStore) ListContexts(ctx context.Context, criteria *ListCriteria) ([]*slurpContext.ContextNode, error) {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	results := make([]*slurpContext.ContextNode, 0, len(s.contexts))
+	for _, node := range s.contexts {
+		results = append(results, node)
+	}
+	return results, nil
+}
+
+func (s *inMemoryContextStore) SearchContexts(ctx context.Context, query *SearchQuery) (*SearchResults, error) {
+	return &SearchResults{
+		Results:        []*SearchResult{},
+		TotalResults:   0,
+		ProcessingTime: 0,
+		Facets:         map[string]map[string]int{},
+		Suggestions:    []string{},
+		ProcessedAt:    time.Now(),
+	}, nil
+}
+
+func (s *inMemoryContextStore) BatchStore(ctx context.Context, batch *BatchStoreRequest) (*BatchStoreResult, error) {
+	if batch == nil {
+		return &BatchStoreResult{}, nil
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	success := 0
+	for _, item := range batch.Contexts {
+		if item == nil || item.Context == nil {
+			continue
+		}
+		s.contexts[item.Context.UCXLAddress.String()] = item.Context
+		success++
+	}
+	return &BatchStoreResult{SuccessCount: success}, nil
+}
+
+func (s *inMemoryContextStore) BatchRetrieve(ctx context.Context, batch *BatchRetrieveRequest) (*BatchRetrieveResult, error) {
+	result := &BatchRetrieveResult{
+		Contexts:       make(map[string]*slurpContext.ContextNode),
+		Errors:         make(map[string]error),
+		ProcessedAt:    time.Now(),
+		ProcessingTime: 0,
+	}
+	if batch == nil {
+		return result, nil
+	}
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	for _, address := range batch.Addresses {
+		key := address.String()
+		if node, ok := s.contexts[key]; ok {
+			result.Contexts[key] = node
+			result.SuccessCount++
+		} else {
+			result.Errors[key] = ErrNotFound
+			result.ErrorCount++
+		}
+	}
+	return result, nil
+}
+
+func (s *inMemoryContextStore) GetStorageStats(ctx context.Context) (*StorageStatistics, error) {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return &StorageStatistics{
+		TotalContexts: int64(len(s.contexts)),
+		LocalContexts: int64(len(s.contexts)),
+		LastSyncTime:  time.Now(),
+	}, nil
+}
+
+func (s *inMemoryContextStore) Sync(ctx context.Context) error {
+	return nil
+}
+
+func (s *inMemoryContextStore) Backup(ctx context.Context, destination string) error {
+	return nil
+}
+
+func (s *inMemoryContextStore) Restore(ctx context.Context, source string) error {
+	return nil
+}