/**
* cnodes
*
* A representation-agnostic library to define and execute nodes based processes
* License: MIT
* Author: Marco Jacovone
* Year: 2020-2021
*/
import { Node } from "../core/node.mjs";
import {
InputSocket,
NextSocket as NextSocket,
PrevSocket,
} from "../core/socket.mjs";
import { Types } from "../core/type.mjs";
/**
* This class implements a node that is able to
* redirect the flow of execution based on the
* "condition" input value
*/
export class If extends Node {
// Provide a node instance
static instance = () => new If();
/**
* Construct a new If node
*/
constructor() {
super("If");
this.inputs = [new InputSocket("Condition", this, Types.BOOLEAN, false)];
this.outputs = [];
this.nexts = [new NextSocket("Then", this), new NextSocket("Else", this)];
this.prev = new PrevSocket("In", this);
}
/**
* Clone this node
* @param {Function} factory The factory class function
*/
clone(factory = If.instance) {
return super.clone(factory);
}
/**
* The process function
*/
async process() {
await this.evaluateInputs();
let flow = null;
if (this.input("Condition").value) {
flow = this.next("Then");
} else {
flow = this.next("Else");
}
return this.getFlowResult(flow);
}
}