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import { INode, INodeData, INodeParams } from '../../../src/Interface'
import { getBaseClasses } from '../../../src/utils'
import { CharacterTextSplitter, CharacterTextSplitterParams } from 'langchain/text_splitter'
class CharacterTextSplitter_TextSplitters implements INode {
label: string
name: string
description: string
type: string
icon: string
category: string
baseClasses: string[]
inputs: INodeParams[]
constructor() {
this.label = 'Character Text Splitter'
this.name = 'characterTextSplitter'
this.type = 'CharacterTextSplitter'
this.icon = 'textsplitter.svg'
this.category = 'Text Splitters'
this.description = `splits only on one type of character (defaults to "\\n\\n").`
this.baseClasses = [this.type, ...getBaseClasses(CharacterTextSplitter)]
this.inputs = [
{
label: 'Separator',
name: 'separator',
type: 'string',
optional: true
},
{
label: 'Chunk Size',
name: 'chunkSize',
type: 'number',
default: 1000,
optional: true
},
{
label: 'Chunk Overlap',
name: 'chunkOverlap',
type: 'number',
optional: true
}
]
}
async init(nodeData: INodeData): Promise<any> {
const separator = nodeData.inputs?.separator as string
const chunkSize = nodeData.inputs?.chunkSize as string
const chunkOverlap = nodeData.inputs?.chunkOverlap as string
const obj = {} as CharacterTextSplitterParams
if (separator) obj.separator = separator
if (chunkSize) obj.chunkSize = parseInt(chunkSize, 10)
if (chunkOverlap) obj.chunkOverlap = parseInt(chunkOverlap, 10)
const splitter = new CharacterTextSplitter(obj)
return splitter
}
}
module.exports = { nodeClass: CharacterTextSplitter_TextSplitters }
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