47 lines
1.5 KiB
JavaScript
47 lines
1.5 KiB
JavaScript
import evaluateCalculation from '/imports/api/creature/computation/engine/evaluateCalculation.js';
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import { union } from 'lodash';
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export default function computeToggle(toggle, memo){
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if (toggle.computationDetails.computed) return;
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if (toggle.computationDetails.busyComputing){
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// Trying to compute this effect again while it is already computing.
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// We must be in a dependency loop.
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toggle.computationDetails.computed = true;
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toggle.result = false;
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toggle.computationDetails.busyComputing = false;
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toggle.computationDetails.error = 'dependencyLoop';
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if (Meteor.isClient) console.warn('dependencyLoop', toggle);
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return;
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}
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// Before doing any work, mark this toggle as busy
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toggle.computationDetails.busyComputing = true;
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// Do work
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delete toggle.errors;
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if (toggle.enabled){
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toggle.toggleResult = true;
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} else if (toggle.disabled){
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toggle.toggleResult = false;
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} else if (!toggle.condition){
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toggle.toggleResult = false;
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} else if (Number.isFinite(+toggle.condition)){
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toggle.toggleResult = !!+toggle.condition;
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} else {
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let {
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result,
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context,
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dependencies,
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} = evaluateCalculation({string: toggle.condition, prop: toggle, memo});
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toggle.toggleResult = !!result.value;
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toggle.dependencies = union(
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toggle.dependencies,
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dependencies,
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);
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if (context.errors.length){
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toggle.errors = context.errors;
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}
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}
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toggle.computationDetails.computed = true;
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toggle.computationDetails.busyComputing = false;
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}
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