refactor: consolidate packages - move output to cmd, config/session to store, rename Store to GraphStore

src/store/graph_store.go

@@ -0,0 +1,30 @@
+package store
+
+import "axolotl/models"
+
+// GraphStore is a primitive graph persistence interface. It provides basic
+// operations for nodes and directed rels. No business logic lives here.
+// "Tag" rels are rels with an empty toID (e.g. "_type::issue" or "backend").
+type GraphStore interface {
+	// Nodes
+	AddNode(id, title, content, dueDate, createdAt, updatedAt string) error
+	GetNode(id string) (*models.Node, error) // returns node with tags and rels populated
+	UpdateNode(id, title, content, dueDate, updatedAt string) error // empty dueDate stores NULL
+	DeleteNode(id string) error
+	NodeExists(id string) (bool, error)
+	GenerateID() (string, error) // returns a random 5-char ID guaranteed unique in the store
+
+	// Rels: relName is the relation name; toID is empty for "tag" rels (properties/labels).
+	AddRel(nodeID, relName, toID string) error
+	RemoveRel(nodeID, relName, toID string) error
+
+	// FindNodes returns fully-populated nodes matching all given filters.
+	// Filters with empty Target match nodes by rel_name prefix with empty toID (tag/property).
+	// Filters with non-empty Target match nodes by exact rel_name and toID (edge).
+	FindNodes(filters []*models.Rel) ([]*models.Node, error)
+
+	// Transaction runs fn inside an atomic transaction. If fn returns an error
+	// the transaction is rolled back; otherwise it is committed.
+	// Calls to Transaction inside fn reuse the same transaction (no nesting).
+	Transaction(fn func(GraphStore) error) error
+}