dify/web/app/components/workflow/nodes/end/default.ts

import type { TFunction } from 'i18next'
import type { NodeDefault } from '../../types'
import type { EndNodeType } from './types'
import { BlockEnum } from '@/app/components/workflow/types'
import { genNodeMetaData } from '@/app/components/workflow/utils'

const metaData = genNodeMetaData({
  sort: 2.1,
  type: BlockEnum.End,
  helpLinkUri: 'output',
  isRequired: false,
})
const nodeDefault: NodeDefault<EndNodeType> = {
  metaData,
  defaultValue: {
    outputs: [],
  },
  checkValid(payload: EndNodeType, t: TFunction<'workflow'>) {
    const outputs = payload.outputs || []

    let errorMessage = ''
    if (!outputs.length) {
      errorMessage = t(($) => $['errorMsg.fieldRequired'], {
        ns: 'workflow',
        field: t(($) => $['nodes.end.output.variable'], { ns: 'workflow' }),
      })
    } else {
      const invalidOutput = outputs.find((output) => {
        const variableName = output.variable?.trim()
        const hasSelector = Array.isArray(output.value_selector) && output.value_selector.length > 0
        return !variableName || !hasSelector
      })

      if (invalidOutput)
        errorMessage = t(($) => $['errorMsg.fieldRequired'], {
          ns: 'workflow',
          field: t(($) => $['nodes.end.output.variable'], { ns: 'workflow' }),
        })
    }

    return {
      isValid: !errorMessage,
      errorMessage,
    }
  },
}

export default nodeDefault