move lightrag_webui folder to top directory

lightrag_webui/src/components/GraphControl.tsx

@@ -0,0 +1,185 @@
+import { useLoadGraph, useRegisterEvents, useSetSettings, useSigma } from '@react-sigma/core'
+// import { useLayoutCircular } from '@react-sigma/layout-circular'
+import { useLayoutForceAtlas2 } from '@react-sigma/layout-forceatlas2'
+import { useEffect } from 'react'
+
+// import useRandomGraph, { EdgeType, NodeType } from '@/hooks/useRandomGraph'
+import useLightragGraph, { EdgeType, NodeType } from '@/hooks/useLightragGraph'
+import useTheme from '@/hooks/useTheme'
+import * as Constants from '@/lib/constants'
+
+import { useSettingsStore } from '@/stores/settings'
+import { useGraphStore } from '@/stores/graph'
+
+const isButtonPressed = (ev: MouseEvent | TouchEvent) => {
+  if (ev.type.startsWith('mouse')) {
+    if ((ev as MouseEvent).buttons !== 0) {
+      return true
+    }
+  }
+  return false
+}
+
+const GraphControl = ({ disableHoverEffect }: { disableHoverEffect?: boolean }) => {
+  const { lightrageGraph } = useLightragGraph()
+  const sigma = useSigma<NodeType, EdgeType>()
+  const registerEvents = useRegisterEvents<NodeType, EdgeType>()
+  const setSettings = useSetSettings<NodeType, EdgeType>()
+  const loadGraph = useLoadGraph<NodeType, EdgeType>()
+  const { assign: assignLayout } = useLayoutForceAtlas2({
+    iterations: 20
+  })
+
+  const { theme } = useTheme()
+  const hideUnselectedEdges = useSettingsStore.use.enableHideUnselectedEdges()
+  const selectedNode = useGraphStore.use.selectedNode()
+  const focusedNode = useGraphStore.use.focusedNode()
+  const selectedEdge = useGraphStore.use.selectedEdge()
+  const focusedEdge = useGraphStore.use.focusedEdge()
+
+  /**
+   * When component mount
+   * => load the graph
+   */
+  useEffect(() => {
+    // Create & load the graph
+    const graph = lightrageGraph()
+    loadGraph(graph)
+    if (!(graph as any).__force_applied) {
+      assignLayout()
+      Object.assign(graph, { __force_applied: true })
+    }
+
+    const { setFocusedNode, setSelectedNode, setFocusedEdge, setSelectedEdge, clearSelection } =
+      useGraphStore.getState()
+
+    // Register the events
+    registerEvents({
+      enterNode: (event) => {
+        if (!isButtonPressed(event.event.original)) {
+          setFocusedNode(event.node)
+        }
+      },
+      leaveNode: (event) => {
+        if (!isButtonPressed(event.event.original)) {
+          setFocusedNode(null)
+        }
+      },
+      clickNode: (event) => {
+        setSelectedNode(event.node)
+        setSelectedEdge(null)
+      },
+      clickEdge: (event) => {
+        setSelectedEdge(event.edge)
+        setSelectedNode(null)
+      },
+      enterEdge: (event) => {
+        if (!isButtonPressed(event.event.original)) {
+          setFocusedEdge(event.edge)
+        }
+      },
+      leaveEdge: (event) => {
+        if (!isButtonPressed(event.event.original)) {
+          setFocusedEdge(null)
+        }
+      },
+      clickStage: () => clearSelection()
+    })
+  }, [assignLayout, loadGraph, registerEvents, lightrageGraph])
+
+  /**
+   * When component mount or hovered node change
+   * => Setting the sigma reducers
+   */
+  useEffect(() => {
+    const isDarkTheme = theme === 'dark'
+    const labelColor = isDarkTheme ? Constants.labelColorDarkTheme : undefined
+    const edgeColor = isDarkTheme ? Constants.edgeColorDarkTheme : undefined
+
+    setSettings({
+      nodeReducer: (node, data) => {
+        const graph = sigma.getGraph()
+        const newData: NodeType & {
+          labelColor?: string
+          borderColor?: string
+        } = { ...data, highlighted: data.highlighted || false, labelColor }
+
+        if (!disableHoverEffect) {
+          newData.highlighted = false
+          const _focusedNode = focusedNode || selectedNode
+          const _focusedEdge = focusedEdge || selectedEdge
+
+          if (_focusedNode) {
+            if (node === _focusedNode || graph.neighbors(_focusedNode).includes(node)) {
+              newData.highlighted = true
+              if (node === selectedNode) {
+                newData.borderColor = Constants.nodeBorderColorSelected
+              }
+            }
+          } else if (_focusedEdge) {
+            if (graph.extremities(_focusedEdge).includes(node)) {
+              newData.highlighted = true
+              newData.size = 3
+            }
+          } else {
+            return newData
+          }
+
+          if (newData.highlighted) {
+            if (isDarkTheme) {
+              newData.labelColor = Constants.LabelColorHighlightedDarkTheme
+            }
+          } else {
+            newData.color = Constants.nodeColorDisabled
+          }
+        }
+        return newData
+      },
+      edgeReducer: (edge, data) => {
+        const graph = sigma.getGraph()
+        const newData = { ...data, hidden: false, labelColor, color: edgeColor }
+
+        if (!disableHoverEffect) {
+          const _focusedNode = focusedNode || selectedNode
+
+          if (_focusedNode) {
+            if (hideUnselectedEdges) {
+              if (!graph.extremities(edge).includes(_focusedNode)) {
+                newData.hidden = true
+              }
+            } else {
+              if (graph.extremities(edge).includes(_focusedNode)) {
+                newData.color = Constants.edgeColorHighlighted
+              }
+            }
+          } else {
+            if (focusedEdge || selectedEdge) {
+              if (edge === selectedEdge) {
+                newData.color = Constants.edgeColorSelected
+              } else if (edge === focusedEdge) {
+                newData.color = Constants.edgeColorHighlighted
+              } else if (hideUnselectedEdges) {
+                newData.hidden = true
+              }
+            }
+          }
+        }
+        return newData
+      }
+    })
+  }, [
+    selectedNode,
+    focusedNode,
+    selectedEdge,
+    focusedEdge,
+    setSettings,
+    sigma,
+    disableHoverEffect,
+    theme,
+    hideUnselectedEdges
+  ])
+
+  return null
+}
+
+export default GraphControl