mirror of
https://gitee.com/dify_ai/dify.git
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364 lines
10 KiB
TypeScript
364 lines
10 KiB
TypeScript
import {
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Position,
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getConnectedEdges,
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getOutgoers,
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} from 'reactflow'
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import dagre from 'dagre'
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import { v4 as uuid4 } from 'uuid'
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import {
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cloneDeep,
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uniqBy,
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} from 'lodash-es'
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import type {
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Edge,
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InputVar,
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Node,
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ToolWithProvider,
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} from './types'
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import { BlockEnum } from './types'
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import {
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NODE_WIDTH_X_OFFSET,
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START_INITIAL_POSITION,
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} from './constants'
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import type { QuestionClassifierNodeType } from './nodes/question-classifier/types'
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import type { ToolNodeType } from './nodes/tool/types'
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import { CollectionType } from '@/app/components/tools/types'
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import { toolParametersToFormSchemas } from '@/app/components/tools/utils/to-form-schema'
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const WHITE = 'WHITE'
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const GRAY = 'GRAY'
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const BLACK = 'BLACK'
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const isCyclicUtil = (nodeId: string, color: Record<string, string>, adjaList: Record<string, string[]>, stack: string[]) => {
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color[nodeId] = GRAY
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stack.push(nodeId)
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for (let i = 0; i < adjaList[nodeId].length; ++i) {
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const childId = adjaList[nodeId][i]
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if (color[childId] === GRAY) {
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stack.push(childId)
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return true
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}
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if (color[childId] === WHITE && isCyclicUtil(childId, color, adjaList, stack))
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return true
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}
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color[nodeId] = BLACK
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if (stack.length > 0 && stack[stack.length - 1] === nodeId)
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stack.pop()
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return false
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}
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const getCycleEdges = (nodes: Node[], edges: Edge[]) => {
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const adjaList: Record<string, string[]> = {}
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const color: Record<string, string> = {}
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const stack: string[] = []
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for (const node of nodes) {
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color[node.id] = WHITE
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adjaList[node.id] = []
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}
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for (const edge of edges)
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adjaList[edge.source]?.push(edge.target)
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for (let i = 0; i < nodes.length; i++) {
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if (color[nodes[i].id] === WHITE)
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isCyclicUtil(nodes[i].id, color, adjaList, stack)
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}
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const cycleEdges = []
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if (stack.length > 0) {
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const cycleNodes = new Set(stack)
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for (const edge of edges) {
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if (cycleNodes.has(edge.source) && cycleNodes.has(edge.target))
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cycleEdges.push(edge)
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}
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}
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return cycleEdges
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}
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export const initialNodes = (originNodes: Node[], originEdges: Edge[]) => {
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const nodes = cloneDeep(originNodes)
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const edges = cloneDeep(originEdges)
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const firstNode = nodes[0]
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if (!firstNode?.position) {
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nodes.forEach((node, index) => {
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node.position = {
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x: START_INITIAL_POSITION.x + index * NODE_WIDTH_X_OFFSET,
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y: START_INITIAL_POSITION.y,
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}
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})
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}
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return nodes.map((node) => {
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node.type = 'custom'
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const connectedEdges = getConnectedEdges([node], edges)
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node.data._connectedSourceHandleIds = connectedEdges.filter(edge => edge.source === node.id).map(edge => edge.sourceHandle || 'source')
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node.data._connectedTargetHandleIds = connectedEdges.filter(edge => edge.target === node.id).map(edge => edge.targetHandle || 'target')
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if (node.data.type === BlockEnum.IfElse) {
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node.data._targetBranches = [
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{
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id: 'true',
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name: 'IS TRUE',
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},
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{
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id: 'false',
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name: 'IS FALSE',
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},
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]
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}
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if (node.data.type === BlockEnum.QuestionClassifier) {
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node.data._targetBranches = (node.data as QuestionClassifierNodeType).classes.map((topic) => {
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return topic
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})
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}
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return node
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})
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}
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export const initialEdges = (originEdges: Edge[], originNodes: Node[]) => {
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const nodes = cloneDeep(originNodes)
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const edges = cloneDeep(originEdges)
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let selectedNode: Node | null = null
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const nodesMap = nodes.reduce((acc, node) => {
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acc[node.id] = node
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if (node.data?.selected)
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selectedNode = node
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return acc
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}, {} as Record<string, Node>)
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const cycleEdges = getCycleEdges(nodes, edges)
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return edges.filter((edge) => {
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return !cycleEdges.find(cycEdge => cycEdge.source === edge.source && cycEdge.target === edge.target)
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}).map((edge) => {
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edge.type = 'custom'
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if (!edge.sourceHandle)
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edge.sourceHandle = 'source'
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if (!edge.targetHandle)
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edge.targetHandle = 'target'
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if (!edge.data?.sourceType && edge.source) {
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edge.data = {
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...edge.data,
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sourceType: nodesMap[edge.source].data.type!,
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} as any
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}
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if (!edge.data?.targetType && edge.target) {
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edge.data = {
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...edge.data,
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targetType: nodesMap[edge.target].data.type!,
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} as any
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}
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if (selectedNode) {
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edge.data = {
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...edge.data,
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_connectedNodeIsSelected: edge.source === selectedNode.id || edge.target === selectedNode.id,
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} as any
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}
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return edge
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})
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}
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const dagreGraph = new dagre.graphlib.Graph()
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dagreGraph.setDefaultEdgeLabel(() => ({}))
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export const getLayoutByDagre = (originNodes: Node[], originEdges: Edge[]) => {
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const nodes = cloneDeep(originNodes)
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const edges = cloneDeep(originEdges)
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dagreGraph.setGraph({
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rankdir: 'LR',
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align: 'UL',
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nodesep: 40,
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ranksep: 60,
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})
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nodes.forEach((node) => {
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dagreGraph.setNode(node.id, { width: node.width, height: node.height })
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})
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edges.forEach((edge) => {
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dagreGraph.setEdge(edge.source, edge.target)
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})
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dagre.layout(dagreGraph)
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return dagreGraph
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}
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export const canRunBySingle = (nodeType: BlockEnum) => {
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return nodeType === BlockEnum.LLM
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|| nodeType === BlockEnum.KnowledgeRetrieval
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|| nodeType === BlockEnum.Code
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|| nodeType === BlockEnum.TemplateTransform
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|| nodeType === BlockEnum.QuestionClassifier
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|| nodeType === BlockEnum.HttpRequest
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|| nodeType === BlockEnum.Tool
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}
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type ConnectedSourceOrTargetNodesChange = {
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type: string
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edge: Edge
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}[]
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export const getNodesConnectedSourceOrTargetHandleIdsMap = (changes: ConnectedSourceOrTargetNodesChange, nodes: Node[]) => {
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const nodesConnectedSourceOrTargetHandleIdsMap = {} as Record<string, any>
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changes.forEach((change) => {
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const {
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edge,
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type,
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} = change
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const sourceNode = nodes.find(node => node.id === edge.source)!
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if (sourceNode) {
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nodesConnectedSourceOrTargetHandleIdsMap[sourceNode.id] = nodesConnectedSourceOrTargetHandleIdsMap[sourceNode.id] || {
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_connectedSourceHandleIds: [...(sourceNode?.data._connectedSourceHandleIds || [])],
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_connectedTargetHandleIds: [...(sourceNode?.data._connectedTargetHandleIds || [])],
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}
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}
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const targetNode = nodes.find(node => node.id === edge.target)!
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if (targetNode) {
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nodesConnectedSourceOrTargetHandleIdsMap[targetNode.id] = nodesConnectedSourceOrTargetHandleIdsMap[targetNode.id] || {
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_connectedSourceHandleIds: [...(targetNode?.data._connectedSourceHandleIds || [])],
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_connectedTargetHandleIds: [...(targetNode?.data._connectedTargetHandleIds || [])],
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}
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}
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if (sourceNode) {
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if (type === 'remove')
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nodesConnectedSourceOrTargetHandleIdsMap[sourceNode.id]._connectedSourceHandleIds = nodesConnectedSourceOrTargetHandleIdsMap[sourceNode.id]._connectedSourceHandleIds.filter((handleId: string) => handleId !== edge.sourceHandle)
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if (type === 'add')
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nodesConnectedSourceOrTargetHandleIdsMap[sourceNode.id]._connectedSourceHandleIds.push(edge.sourceHandle || 'source')
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}
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if (targetNode) {
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if (type === 'remove')
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nodesConnectedSourceOrTargetHandleIdsMap[targetNode.id]._connectedTargetHandleIds = nodesConnectedSourceOrTargetHandleIdsMap[targetNode.id]._connectedTargetHandleIds.filter((handleId: string) => handleId !== edge.targetHandle)
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if (type === 'add')
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nodesConnectedSourceOrTargetHandleIdsMap[targetNode.id]._connectedTargetHandleIds.push(edge.targetHandle || 'target')
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}
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})
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return nodesConnectedSourceOrTargetHandleIdsMap
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}
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export const generateNewNode = ({ data, position, id }: Pick<Node, 'data' | 'position'> & { id?: string }) => {
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return {
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id: id || `${Date.now()}`,
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type: 'custom',
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data,
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position,
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targetPosition: Position.Left,
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sourcePosition: Position.Right,
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} as Node
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}
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export const getValidTreeNodes = (nodes: Node[], edges: Edge[]) => {
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const startNode = nodes.find(node => node.data.type === BlockEnum.Start)
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if (!startNode) {
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return {
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validNodes: [],
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maxDepth: 0,
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}
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}
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const list: Node[] = [startNode]
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let maxDepth = 1
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const traverse = (root: Node, depth: number) => {
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if (depth > maxDepth)
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maxDepth = depth
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const outgoers = getOutgoers(root, nodes, edges)
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if (outgoers.length) {
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outgoers.forEach((outgoer) => {
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list.push(outgoer)
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traverse(outgoer, depth + 1)
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})
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}
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else {
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list.push(root)
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}
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}
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traverse(startNode, maxDepth)
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return {
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validNodes: uniqBy(list, 'id'),
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maxDepth,
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}
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}
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export const getToolCheckParams = (
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toolData: ToolNodeType,
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buildInTools: ToolWithProvider[],
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customTools: ToolWithProvider[],
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language: string,
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) => {
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const { provider_id, provider_type, tool_name } = toolData
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const isBuiltIn = provider_type === CollectionType.builtIn
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const currentTools = isBuiltIn ? buildInTools : customTools
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const currCollection = currentTools.find(item => item.id === provider_id)
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const currTool = currCollection?.tools.find(tool => tool.name === tool_name)
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const formSchemas = currTool ? toolParametersToFormSchemas(currTool.parameters) : []
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const toolInputVarSchema = formSchemas.filter((item: any) => item.form === 'llm')
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const toolSettingSchema = formSchemas.filter((item: any) => item.form !== 'llm')
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return {
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toolInputsSchema: (() => {
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const formInputs: InputVar[] = []
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toolInputVarSchema.forEach((item: any) => {
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formInputs.push({
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label: item.label[language] || item.label.en_US,
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variable: item.variable,
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type: item.type,
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required: item.required,
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})
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})
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return formInputs
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})(),
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notAuthed: isBuiltIn && !!currCollection?.allow_delete && !currCollection?.is_team_authorization,
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toolSettingSchema,
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language,
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}
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}
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export const changeNodesAndEdgesId = (nodes: Node[], edges: Edge[]) => {
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const idMap = nodes.reduce((acc, node) => {
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acc[node.id] = uuid4()
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return acc
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}, {} as Record<string, string>)
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const newNodes = nodes.map((node) => {
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return {
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...node,
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id: idMap[node.id],
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}
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})
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const newEdges = edges.map((edge) => {
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return {
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...edge,
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source: idMap[edge.source],
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target: idMap[edge.target],
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}
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})
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return [newNodes, newEdges] as [Node[], Edge[]]
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}
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