move src file to seperate direcotry

src/service/node_service.go

@@ -0,0 +1,100 @@
+package service
+
+import (
+	"axolotl/models"
+	"axolotl/store"
+	"fmt"
+	"net/http"
+)
+
+// NodeService is the single entry point for all node operations.
+// All data-model integrity rules are enforced here; callers cannot produce
+// invalid state by interacting with this interface alone.
+//
+// Every NodeService instance is bound to a specific user (see User()).
+// GetNodeService returns an error when no user is configured.
+type NodeService interface {
+	// User returns the name/ID of the user this service instance acts on behalf of.
+	User() string
+
+	// Query
+	GetByID(id string) (*models.Node, error)
+	List(filter ListFilter) ([]*models.Node, error)
+
+	// Lifecycle
+	Add(input AddInput) (*models.Node, error)
+	Update(id string, input UpdateInput) (*models.Node, error)
+	Delete(id string) error
+
+	// User management
+	AddUser(name string) (*models.Node, error)
+	ListUsers() ([]*models.Node, error)
+}
+
+// AddInput describes a new node to create.
+// Rels may contain tag rels (Target == ""), property rels (Target == "",
+// Type is "prefix::value"), and edge rels (Target is a node name or ID).
+// The service applies defaults (type=issue, status=open for issues) and validates.
+type AddInput struct {
+	Title   string
+	Content string
+	DueDate string
+	Rels    []RelInput
+}
+
+// UpdateInput describes changes to apply to an existing node.
+// AddRels and RemoveRels accept both tag rels (Target == "") and edge rels.
+// Setting _status::done in AddRels is rejected when the node has open blockers.
+// Adding assignee or in_namespace rels replaces the previous single target.
+type UpdateInput struct {
+	Title      *string
+	Content    *string
+	DueDate    *string // nil = no change; pointer to "" = clear due date
+	AddRels    []RelInput
+	RemoveRels []RelInput
+}
+
+// ListFilter specifies which nodes to return. Empty slices are ignored.
+// Tag filters (Target == "") match by rel_name prefix.
+// Edge filters (Target != "") are resolved to node IDs.
+type ListFilter struct {
+	Rels []RelInput
+}
+
+// RelInput is a typed, directed rel with a target that may be a name or node ID.
+// Target == "" means this is a tag or property rel (no target node).
+type RelInput struct {
+	Type   models.RelType
+	Target string // name or node ID; the service resolves names. Empty = tag rel.
+}
+
+func InitNodeService(path string) error {
+	return store.InitSQLiteStore(path)
+}
+
+func GetNodeService(cfg Config) (NodeService, error) {
+	user := cfg.GetUser()
+	if user == "" {
+		return nil, fmt.Errorf("no user configured: run 'ax user set <username>' first")
+	}
+	if rc, ok := cfg.GetRemoteConfig(); ok {
+		base := fmt.Sprintf("http://%s:%d", rc.Host, rc.Port)
+		return &apiClient{base: base, user: user, http: &http.Client{}}, nil
+	}
+	st, err := store.FindAndOpenSQLiteStore()
+	if err != nil {
+		return nil, err
+	}
+	return &nodeServiceImpl{store: st, userID: user}, nil
+}
+
+func GetNodeServiceForUser(user string) (NodeService, error) {
+	if user == "" {
+		return nil, fmt.Errorf("user is required")
+	}
+	st, err := store.FindOrInitSQLiteStore()
+	if err != nil {
+		return nil, err
+	}
+	return &nodeServiceImpl{store: st, userID: user}, nil
+}