xops-pat/app/model/concurrentStep.js

Procedure generator for on space operations

'use strict';

const Step = require('./step.js');

function getActorSteps(actorStepsYaml) {
	var step;

	// Initiate the array of steps for the actor
	const actorSteps = [];

	// Check if actorStepsYaml is a string
	if (typeof actorStepsYaml === 'string') {
		step = new Step();
		step.populateFromYaml(actorStepsYaml);
		actorSteps.push(step);

	// Check if actorStepsYaml is an array
	} else if (Array.isArray(actorStepsYaml)) {

		// This gets the values of each step in the array
		for (var stepYaml of actorStepsYaml) {

			// Create the step, and add it to the array
			step = new Step();
			step.populateFromYaml(stepYaml);
			actorSteps.push(step);
		}

	// Don't know how to process this
	} else {
		throw new Error(`Was expecting either steps or string for actor.  Instead found: ${JSON.stringify(actorStepsYaml)}`);
	}

	return actorSteps;

}

module.exports = class ConcurrentStep {

	constructor(concurrentStepYaml) {
		var actorRole,
			actorSteps;

		// First, check if this is a simo
		if (concurrentStepYaml.simo) {

			// Iterate over they keys (which are actor roles)
			for (actorRole in concurrentStepYaml.simo) {

				// Get the actor steps array
				actorSteps = getActorSteps(concurrentStepYaml.simo[actorRole]);

				// Set the actor and steps in the object
				this[actorRole] = actorSteps;

			}

			return;
		}

		// Not a simo, so just an actor role

		// Get the actor role
		if (Object.keys(concurrentStepYaml).length !== 1) {
			throw new Error(`Expected a single actor role, but instead got ${JSON.stringify(concurrentStepYaml)}`);
		}
		actorRole = Object.keys(concurrentStepYaml)[0];

		// get the actor steps
		actorSteps = getActorSteps(concurrentStepYaml[actorRole]);

		// Set the actor and steps in the object
		this[actorRole] = actorSteps;

	}

};