upd graph

backend/internal/handlers/graph.go

@@ -53,25 +53,52 @@ func (h *GraphHandlers) reload() error {
 	return nil
 }
 
-// GetGraph returns the current parsed graph.
-func (h *GraphHandlers) GetGraph() *graph.Graph {
+// LoadedGraph returns the current parsed graph.
+func (h *GraphHandlers) LoadedGraph() *graph.Graph {
 	h.mu.RLock()
 	defer h.mu.RUnlock()
 	return h.loaded
 }
 
-// GetYAML returns the raw YAML content.
-// @Summary Get dependency graph YAML
-// @Description Returns the service dependency graph as raw YAML text
+// GetGraph returns the current dependency graph as JSON.
+// @Summary Get dependency graph
+// @Description Returns the service dependency graph as JSON
 // @Tags graph
-// @Produce plain
-// @Success 200 {string} string "YAML content"
+// @Produce json
+// @Success 200 {object} map[string]interface{} "Dependency graph"
 // @Security Bearer
 // @Router /graph [get]
-func (h *GraphHandlers) GetYAML(c *gin.Context) {
+func (h *GraphHandlers) GetGraph(c *gin.Context) {
 	h.mu.RLock()
 	defer h.mu.RUnlock()
-	c.Data(http.StatusOK, "text/yaml", h.yamlData)
+
+	g := h.loaded
+	if g == nil {
+		c.JSON(http.StatusOK, gin.H{"nodes": map[string]interface{}{}})
+		return
+	}
+
+	nodes := make(map[string]interface{})
+	for _, node := range g.Nodes() {
+		services := make(map[string]interface{})
+		for _, svc := range node.Services {
+			deps := make([]map[string]interface{}, 0)
+			for _, dep := range svc.Dependencies {
+				deps = append(deps, map[string]interface{}{
+					"target":    dep.Target,
+					"condition": dep.Condition,
+				})
+			}
+			services[svc.Name] = map[string]interface{}{
+				"dependencies": deps,
+			}
+		}
+		nodes[node.ID] = map[string]interface{}{
+			"services": services,
+		}
+	}
+
+	c.JSON(http.StatusOK, gin.H{"nodes": nodes})
 }
 
 // UpdateYAML updates the graph from new YAML text.