feat: added reduce and connection logic

A rule still needs to be added to the inferred belief handles to prevent cyclical inferredBeliefs, but aside from that logic ifs finished.

ref: N25B-433

src/pages/VisProgPage/visualProgrammingUI/nodes/InferredBeliefNode.tsx

@@ -2,10 +2,12 @@ import {
   type NodeProps,
   Position,
   type Node,
+  getConnectedEdges
 } from '@xyflow/react';
 import {useState} from "react";
 import { Toolbar } from '../components/NodeComponents.tsx';
 import styles from '../../VisProg.module.css';
+import {BeliefReduce} from "./BeliefReduce.ts";
 import switchStyles from './InferredBeliefNode.module.css';
 import {MultiConnectionHandle, SingleConnectionHandle} from "../components/RuleBasedHandle.tsx";
 import {allowOnlyConnectionsFromType} from "../HandleRules.ts";
@@ -20,18 +22,26 @@ import type {BasicBeliefType} from "./BasicBeliefNode.tsx";
 export type InferredBeliefNodeData = {
   label: string;
   droppable: boolean;
-  inferredBelief: Belief;
+  inferredBelief: InferredBelief;
   hasReduce: boolean;
 };
 
-type Belief = InferredBelief | BasicBeliefType;
+
+
+type Belief = ReducedInferredBelief | BasicBeliefType;
+
+type ReducedInferredBelief = {
+  id: string,
+  left: Belief,
+  operator: "AND" | "OR"
+  right: Belief
+};
 
 type InferredBelief = {
-  id: string;
-  left: Belief | undefined,
-  operator: "AND" | "OR"
-  right: Belief | undefined
-};
+  left: string | undefined,
+  operator: boolean,
+  right: string | undefined,
+}
 
 // helper validation function for InferredBelief objects
 // const isValidInferredBelief = (inferredBelief: InferredBelief) : boolean => {
@@ -47,7 +57,17 @@ export type InferredBeliefNode = Node<InferredBeliefNodeData>;
  * @param _sourceNodeId the source of the received connection
  */
 export function InferredBeliefConnectionTarget(_thisNode: Node, _sourceNodeId: string) {
-  // no additional connection logic exists yet
+  const data = _thisNode.data as InferredBeliefNodeData;
+
+  if ((useFlowStore.getState().nodes.find((node) => node.id === _sourceNodeId
+    && ['basic_belief', 'inferred_belief'].includes(node.type!)))
+  ) {
+    const connectedEdges = getConnectedEdges([_thisNode], useFlowStore.getState().edges);
+    switch(connectedEdges.find(edge => edge.source === _sourceNodeId)?.targetHandle){
+      case 'beliefLeft': data.inferredBelief.left = _sourceNodeId; break;
+      case 'beliefRight': data.inferredBelief.right = _sourceNodeId; break;
+    }
+  }
 }
 
 /**
@@ -65,7 +85,10 @@ export function InferredBeliefConnectionSource(_thisNode: Node, _targetNodeId: s
  * @param _sourceNodeId the source of the disconnected connection
  */
 export function InferredBeliefDisconnectionTarget(_thisNode: Node, _sourceNodeId: string) {
-  // no additional connection logic exists yet
+  const data = _thisNode.data as InferredBeliefNodeData;
+
+  if (_sourceNodeId === data.inferredBelief.left) data.inferredBelief.left = undefined;
+  if (_sourceNodeId === data.inferredBelief.right) data.inferredBelief.right = undefined;
 }
 
 /**
@@ -87,19 +110,18 @@ export default function InferredBeliefNode(props: NodeProps<InferredBeliefNode>)
   const { updateNodeData } = useFlowStore();
   // start of as an AND operator, true: "AND", false: "OR"
   const [enforceAllBeliefs, setEnforceAllBeliefs] = useState(true);
+
   function onToggle() {
     setEnforceAllBeliefs(!enforceAllBeliefs);
+
     updateNodeData(props.id, {
       ...data,
-      belief: {
+      inferredBelief: {
         ...data.inferredBelief,
-        operator: enforceAllBeliefs ? "AND" : "OR",
+        operator: enforceAllBeliefs,
       }
     });
   }
-
-  // TODO define node
-
   return (
     <>
       <Toolbar nodeId={props.id} allowDelete={true}/>
@@ -108,7 +130,7 @@ export default function InferredBeliefNode(props: NodeProps<InferredBeliefNode>)
         <label className={switchStyles.operatorSwitch}>
           <input
             type="checkbox"
-            checked={enforceAllBeliefs}
+            checked={data.inferredBelief.operator}
             onChange={onToggle}
           />
           <div className={switchStyles.switchVisual}></div>
@@ -139,15 +161,22 @@ export default function InferredBeliefNode(props: NodeProps<InferredBeliefNode>)
 /**
  * Reduces each BasicBelief, including its children down into its core data.
  * @param node - The BasicBelief node to reduce.
- * @param _nodes - The list of all nodes in the current flow graph.
+ * @param nodes - The list of all nodes in the current flow graph.
  * @returns A simplified object containing the node label and its list of BasicBeliefs.
  */
-export function InferredBeliefReduce(node: Node, _nodes: Node[]) {
-  //const data = node.data as InferredBeliefNodeData;
-  const result: Record<string, unknown> = {
-        id: node.id, 
-  };
+export function InferredBeliefReduce(node: Node, nodes: Node[]) {
+  const data = node.data as InferredBeliefNodeData;
+  const leftBelief = nodes.find((node) => node.id === data.inferredBelief.left);
+  const rightBelief = nodes.find((node) => node.id === data.inferredBelief.right);
 
-  // TODO define reduce
+  if (!leftBelief) { throw new Error("No Left belief found")}
+  if (!rightBelief) { throw new Error("No Right Belief found")}
+
+  const result: Record<string, unknown> = {
+    id: node.id,
+    left: BeliefReduce(leftBelief, nodes),
+    operator: data.inferredBelief.operator ? "AND" : "OR",
+    right: BeliefReduce(rightBelief, nodes),
+  };
   return result
 }