FEAT: NEW WORKFLOW ENGINE (#3160)

Co-authored-by: Joel <iamjoel007@gmail.com>
Co-authored-by: Yeuoly <admin@srmxy.cn>
Co-authored-by: JzoNg <jzongcode@gmail.com>
Co-authored-by: StyleZhang <jasonapring2015@outlook.com>
Co-authored-by: jyong <jyong@dify.ai>
Co-authored-by: nite-knite <nkCoding@gmail.com>
Co-authored-by: jyong <718720800@qq.com>

web/app/components/workflow/nodes/question-classifier/use-config.ts

@@ -0,0 +1,163 @@
+import { useCallback, useEffect, useRef } from 'react'
+import produce from 'immer'
+import { BlockEnum, VarType } from '../../types'
+import type { Memory, ValueSelector, Var } from '../../types'
+import {
+  useIsChatMode, useNodesReadOnly,
+  useWorkflow,
+} from '../../hooks'
+import { useStore } from '../../store'
+import type { QuestionClassifierNodeType } from './types'
+import useNodeCrud from '@/app/components/workflow/nodes/_base/hooks/use-node-crud'
+import useOneStepRun from '@/app/components/workflow/nodes/_base/hooks/use-one-step-run'
+import { useModelListAndDefaultModelAndCurrentProviderAndModel } from '@/app/components/header/account-setting/model-provider-page/hooks'
+import { ModelTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
+
+const useConfig = (id: string, payload: QuestionClassifierNodeType) => {
+  const { nodesReadOnly: readOnly } = useNodesReadOnly()
+  const isChatMode = useIsChatMode()
+  const defaultConfig = useStore(s => s.nodesDefaultConfigs)[payload.type]
+  const { getBeforeNodesInSameBranch } = useWorkflow()
+  const startNode = getBeforeNodesInSameBranch(id).find(node => node.data.type === BlockEnum.Start)
+  const startNodeId = startNode?.id
+  const { inputs, setInputs } = useNodeCrud<QuestionClassifierNodeType>(id, payload)
+  const inputRef = useRef(inputs)
+  useEffect(() => {
+    inputRef.current = inputs
+  }, [inputs])
+
+  // model
+  const {
+    currentProvider,
+    currentModel,
+  } = useModelListAndDefaultModelAndCurrentProviderAndModel(ModelTypeEnum.textGeneration)
+
+  const model = inputs.model
+  const modelMode = inputs.model?.mode
+  const isChatModel = modelMode === 'chat'
+
+  const handleModelChanged = useCallback((model: { provider: string; modelId: string; mode?: string }) => {
+    const newInputs = produce(inputRef.current, (draft) => {
+      draft.model.provider = model.provider
+      draft.model.name = model.modelId
+      draft.model.mode = model.mode!
+    })
+    setInputs(newInputs)
+  }, [setInputs])
+
+  useEffect(() => {
+    if (currentProvider?.provider && currentModel?.model && !model.provider) {
+      handleModelChanged({
+        provider: currentProvider?.provider,
+        modelId: currentModel?.model,
+        mode: currentModel?.model_properties?.mode as string,
+      })
+    }
+  }, [model.provider, currentProvider, currentModel, handleModelChanged])
+
+  const handleCompletionParamsChange = useCallback((newParams: Record<string, any>) => {
+    const newInputs = produce(inputs, (draft) => {
+      draft.model.completion_params = newParams
+    })
+    setInputs(newInputs)
+  }, [inputs, setInputs])
+
+  const handleQueryVarChange = useCallback((newVar: ValueSelector | string) => {
+    const newInputs = produce(inputs, (draft) => {
+      draft.query_variable_selector = newVar as ValueSelector
+    })
+    setInputs(newInputs)
+    // console.log(newInputs.query_variable_selector)
+  }, [inputs, setInputs])
+
+  useEffect(() => {
+    const isReady = defaultConfig && Object.keys(defaultConfig).length > 0
+    if (isReady) {
+      let query_variable_selector: ValueSelector = []
+      if (isChatMode && inputs.query_variable_selector.length === 0 && startNodeId)
+        query_variable_selector = [startNodeId, 'sys.query']
+      setInputs({
+        ...inputs,
+        ...defaultConfig,
+        query_variable_selector: inputs.query_variable_selector.length > 0 ? inputs.query_variable_selector : query_variable_selector,
+      })
+    }
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [defaultConfig])
+
+  const handleClassesChange = useCallback((newClasses: any) => {
+    const newInputs = produce(inputs, (draft) => {
+      draft.classes = newClasses
+      draft._targetBranches = newClasses
+    })
+    setInputs(newInputs)
+  }, [inputs, setInputs])
+
+  const handleInstructionChange = useCallback((instruction: string) => {
+    const newInputs = produce(inputs, (draft) => {
+      draft.instruction = instruction
+    })
+    setInputs(newInputs)
+  }, [inputs, setInputs])
+
+  const handleMemoryChange = useCallback((memory?: Memory) => {
+    const newInputs = produce(inputs, (draft) => {
+      draft.memory = memory
+    })
+    setInputs(newInputs)
+  }, [inputs, setInputs])
+
+  // single run
+  const {
+    isShowSingleRun,
+    hideSingleRun,
+    runningStatus,
+    handleRun,
+    handleStop,
+    runInputData,
+    setRunInputData,
+    runResult,
+  } = useOneStepRun<QuestionClassifierNodeType>({
+    id,
+    data: inputs,
+    defaultRunInputData: {
+      query: '',
+    },
+  })
+
+  const query = runInputData.query
+  const setQuery = useCallback((newQuery: string) => {
+    setRunInputData({
+      ...runInputData,
+      query: newQuery,
+    })
+  }, [runInputData, setRunInputData])
+
+  const filterVar = useCallback((varPayload: Var) => {
+    return varPayload.type === VarType.string
+  }, [])
+
+  return {
+    readOnly,
+    inputs,
+    handleModelChanged,
+    isChatMode,
+    isChatModel,
+    handleCompletionParamsChange,
+    handleQueryVarChange,
+    filterVar,
+    handleTopicsChange: handleClassesChange,
+    handleInstructionChange,
+    handleMemoryChange,
+    isShowSingleRun,
+    hideSingleRun,
+    runningStatus,
+    handleRun,
+    handleStop,
+    query,
+    setQuery,
+    runResult,
+  }
+}
+
+export default useConfig