dify/web/app/components/workflow/constants.ts

import type { Var } from './types'
import { BlockEnum, VarType } from './types'
export const MAX_ITERATION_PARALLEL_NUM = 10
export const MIN_ITERATION_PARALLEL_NUM = 1
export const DEFAULT_ITER_TIMES = 1
export const DEFAULT_LOOP_TIMES = 1
export const NODE_WIDTH = 240
export const X_OFFSET = 60
export const NODE_WIDTH_X_OFFSET = NODE_WIDTH + X_OFFSET
export const Y_OFFSET = 39
export const START_INITIAL_POSITION = { x: 80, y: 282 }
export const AUTO_LAYOUT_OFFSET = {
  x: -42,
  y: 243,
}
export const ITERATION_NODE_Z_INDEX = 1
export const ITERATION_CHILDREN_Z_INDEX = 1002
export const ITERATION_PADDING = {
  top: 65,
  right: 16,
  bottom: 20,
  left: 16,
}

export const LOOP_NODE_Z_INDEX = 1
export const LOOP_CHILDREN_Z_INDEX = 1002
export const LOOP_PADDING = {
  top: 65,
  right: 16,
  bottom: 20,
  left: 16,
}

export const NODE_LAYOUT_HORIZONTAL_PADDING = 60
export const NODE_LAYOUT_VERTICAL_PADDING = 60
export const NODE_LAYOUT_MIN_DISTANCE = 100

let maxParallelLimit = 10

if (process.env.NEXT_PUBLIC_MAX_PARALLEL_LIMIT && process.env.NEXT_PUBLIC_MAX_PARALLEL_LIMIT !== '')
  maxParallelLimit = Number.parseInt(process.env.NEXT_PUBLIC_MAX_PARALLEL_LIMIT)
else if (globalThis.document?.body?.getAttribute('data-public-max-parallel-limit') && globalThis.document.body.getAttribute('data-public-max-parallel-limit') !== '')
  maxParallelLimit = Number.parseInt(globalThis.document.body.getAttribute('data-public-max-parallel-limit') as string)

export const PARALLEL_LIMIT = maxParallelLimit
export const PARALLEL_DEPTH_LIMIT = 3

export const RETRIEVAL_OUTPUT_STRUCT = `{
  "content": "",
  "title": "",
  "url": "",
  "icon": "",
  "metadata": {
    "dataset_id": "",
    "dataset_name": "",
    "document_id": [],
    "document_name": "",
    "document_data_source_type": "",
    "segment_id": "",
    "segment_position": "",
    "segment_word_count": "",
    "segment_hit_count": "",
    "segment_index_node_hash": "",
    "score": ""
  }
}`

export const SUPPORT_OUTPUT_VARS_NODE = [
  BlockEnum.Start, BlockEnum.LLM, BlockEnum.KnowledgeRetrieval, BlockEnum.Code, BlockEnum.TemplateTransform,
  BlockEnum.HttpRequest, BlockEnum.Tool, BlockEnum.VariableAssigner, BlockEnum.VariableAggregator, BlockEnum.QuestionClassifier,
  BlockEnum.ParameterExtractor, BlockEnum.Iteration, BlockEnum.Loop,
  BlockEnum.DocExtractor, BlockEnum.ListFilter,
  BlockEnum.Agent, BlockEnum.DataSource,
]

export const LLM_OUTPUT_STRUCT: Var[] = [
  {
    variable: 'text',
    type: VarType.string,
  },
]

export const KNOWLEDGE_RETRIEVAL_OUTPUT_STRUCT: Var[] = [
  {
    variable: 'result',
    type: VarType.arrayObject,
  },
]

export const TEMPLATE_TRANSFORM_OUTPUT_STRUCT: Var[] = [
  {
    variable: 'output',
    type: VarType.string,
  },
]

export const QUESTION_CLASSIFIER_OUTPUT_STRUCT = [
  {
    variable: 'class_name',
    type: VarType.string,
  },
]

export const HTTP_REQUEST_OUTPUT_STRUCT: Var[] = [
  {
    variable: 'body',
    type: VarType.string,
  },
  {
    variable: 'status_code',
    type: VarType.number,
  },
  {
    variable: 'headers',
    type: VarType.object,
  },
  {
    variable: 'files',
    type: VarType.arrayFile,
  },
]

export const TOOL_OUTPUT_STRUCT: Var[] = [
  {
    variable: 'text',
    type: VarType.string,
  },
  {
    variable: 'files',
    type: VarType.arrayFile,
  },
  {
    variable: 'json',
    type: VarType.arrayObject,
  },
]

export const PARAMETER_EXTRACTOR_COMMON_STRUCT: Var[] = [
  {
    variable: '__is_success',
    type: VarType.number,
  },
  {
    variable: '__reason',
    type: VarType.string,
  },
]

export const FILE_STRUCT: Var[] = [
  {
    variable: 'name',
    type: VarType.string,
  },
  {
    variable: 'size',
    type: VarType.number,
  },
  {
    variable: 'type',
    type: VarType.string,
  },
  {
    variable: 'extension',
    type: VarType.string,
  },
  {
    variable: 'mime_type',
    type: VarType.string,
  },
  {
    variable: 'transfer_method',
    type: VarType.string,
  },
  {
    variable: 'url',
    type: VarType.string,
  },
  {
    variable: 'related_id',
    type: VarType.string,
  },
]

export const DEFAULT_FILE_UPLOAD_SETTING = {
  allowed_file_upload_methods: ['local_file', 'remote_url'],
  max_length: 5,
  allowed_file_types: ['image'],
  allowed_file_extensions: [],
}

export const WORKFLOW_DATA_UPDATE = 'WORKFLOW_DATA_UPDATE'
export const CUSTOM_NODE = 'custom'
export const CUSTOM_EDGE = 'custom'
export const DSL_EXPORT_CHECK = 'DSL_EXPORT_CHECK'
export const DEFAULT_RETRY_MAX = 3
export const DEFAULT_RETRY_INTERVAL = 100