dify/web/app/components/workflow/nodes/agent/node.tsx

import { type FC, useMemo } from 'react'
import type { NodeProps } from '../../types'
import type { AgentNodeType } from './types'
import { SettingItem } from '../_base/components/setting-item'
import ModelSelector from '@/app/components/header/account-setting/model-provider-page/model-selector'
import { Group, GroupLabel } from '../_base/components/group'
import type { ToolIconProps } from './components/tool-icon'
import { ToolIcon } from './components/tool-icon'
import useConfig from './use-config'
import { useTranslation } from 'react-i18next'
import { useInstalledPluginList } from '@/service/use-plugins'
import { FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'

const AgentNode: FC<NodeProps<AgentNodeType>> = (props) => {
  const { inputs, currentStrategy } = useConfig(props.id, props.data)
  const { t } = useTranslation()
  const pluginList = useInstalledPluginList()
  // TODO: Implement models
  const models = useMemo(() => {
    if (!inputs) return []
    // if selected, show in node
    // if required and not selected, show empty selector
    // if not required and not selected, show nothing
    const models = currentStrategy?.parameters
      .filter(param => param.type === FormTypeEnum.modelSelector)
      .reduce((acc, param) => {
        const item = inputs.agent_parameters?.[param.name]
        if (!item) {
          if (param.required) {
            acc.push({ param: param.name })
            return acc
          }
          else { return acc }
        }
        acc.push({ provider: item.provider, model: item.model, param: param.name })
        return acc
      }, [] as Array<{ param: string } | { provider: string, model: string, param: string }>) || []
    return models
  }, [currentStrategy, inputs])

  const tools = useMemo(() => {
    const tools: Array<ToolIconProps> = []
    currentStrategy?.parameters.forEach((param) => {
      if (['array[tool]', 'tool'].includes(param.type)) {
        const vari = inputs.agent_parameters?.[param.name]
        if (!vari) return
        if (Array.isArray(vari.value)) {
          // TODO: Implement array of tools
        }
        else {
          // TODO: Implement single tool
        }
      }
    })
  }, [currentStrategy, inputs.agent_parameters])
  return <div className='mb-1 px-3 py-1 space-y-1'>
    {inputs.agent_strategy_name
      ? <SettingItem
        label={t('workflow.nodes.agent.strategy.shortLabel')}
        status='error'
        tooltip={t('workflow.nodes.agent.strategyNotInstallTooltip', {
          strategy: inputs.agent_strategy_label,
        })}
      >
        {inputs.agent_strategy_label}
      </SettingItem>
      : <SettingItem label={t('workflow.nodes.agent.strategyNotSet')} />}
    {models.length && <Group
      label={<GroupLabel className='mt-1'>
        {t('workflow.nodes.agent.model')}
      </GroupLabel>}
    >
      {models.map((model) => {
        return <ModelSelector
          key={model.param}
          modelList={[]}
          defaultModel={
            'provider' in model
              ? {
                provider: model.provider,
                model: model.model,
              }
              : undefined}
          readonly
        />
      })}
    </Group>}
    <Group label={<GroupLabel className='mt-1'>
      {t('workflow.nodes.agent.toolbox')}
    </GroupLabel>}>
      <div className='grid grid-cols-10 gap-0.5'>
        <ToolIcon src='/logo/logo.png' />
        <ToolIcon
          src='/logo/logo.png'
          status='error'
          tooltip={t('workflow.nodes.agent.toolNotInstallTooltip', {
            tool: 'Gmail Sender',
          })} />
        <ToolIcon
          src='/logo/logo.png'
          status='warning'
          tooltip={t('workflow.nodes.agent.toolNotAuthorizedTooltip', {
            tool: 'DuckDuckGo AI Search',
          })} />
      </div>
    </Group>
  </div>
}

export default AgentNode