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import { IComponentNodes } from './Interface'
import path from 'path'
import { Dirent } from 'fs'
import { getNodeModulesPackagePath } from './utils'
import { promises } from 'fs'
export class NodesPool {
componentNodes: IComponentNodes = {}
/**
* Initialize to get all nodes
*/
async initialize() {
const packagePath = getNodeModulesPackagePath('flowise-components')
const nodesPath = path.join(packagePath, 'dist', 'nodes')
const nodeFiles = await this.getFiles(nodesPath)
return Promise.all(
nodeFiles.map(async (file) => {
if (file.endsWith('.js')) {
const nodeModule = await require(file)
if (nodeModule.nodeClass) {
const newNodeInstance = new nodeModule.nodeClass()
newNodeInstance.filePath = file
this.componentNodes[newNodeInstance.name] = newNodeInstance
// Replace file icon with absolute path
if (
newNodeInstance.icon &&
(newNodeInstance.icon.endsWith('.svg') ||
newNodeInstance.icon.endsWith('.png') ||
newNodeInstance.icon.endsWith('.jpg'))
) {
const filePath = file.replace(/\\/g, '/').split('/')
filePath.pop()
const nodeIconAbsolutePath = `${filePath.join('/')}/${newNodeInstance.icon}`
this.componentNodes[newNodeInstance.name].icon = nodeIconAbsolutePath
}
}
}
})
)
}
/**
* Recursive function to get node files
* @param {string} dir
* @returns {string[]}
*/
async getFiles(dir: string): Promise<string[]> {
const dirents = await promises.readdir(dir, { withFileTypes: true })
const files = await Promise.all(
dirents.map((dirent: Dirent) => {
const res = path.resolve(dir, dirent.name)
return dirent.isDirectory() ? this.getFiles(res) : res
})
)
return Array.prototype.concat(...files)
}
}
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