Refactored computation into folders

app/imports/api/creature/computation/engine/computeStat.js

@@ -0,0 +1,42 @@
+import combineStat from '/imports/api/creature/computation/engine/combineStat.js';
+import computeEffect from '/imports/api/creature/computation/engine/computeEffect.js';
+import EffectAggregator from '/imports/api/creature/computation/engine/EffectAggregator.js';
+import applyToggles from '/imports/api/creature/computation/engine/applyToggles.js';
+import { each } from 'lodash';
+
+export default function computeStat(stat, memo){
+  // If the stat is already computed, skip it
+  if (stat.computationDetails.computed) return;
+  if (stat.computationDetails.busyComputing){
+    // Trying to compute this stat again while it is already computing.
+    // We must be in a dependency loop.
+    stat.computationDetails.computed = true;
+    stat.value = NaN;
+    stat.computationDetails.busyComputing = false;
+    stat.computationDetails.error = 'dependencyLoop';
+    if (Meteor.isClient) console.warn('dependencyLoop', stat);
+    return;
+  }
+  // Before doing any work, mark this stat as busy
+  stat.computationDetails.busyComputing = true;
+  // Apply any toggles
+  applyToggles(stat, memo);
+
+  if (!stat.computationDetails.disabledByToggle){
+    // Compute and aggregate all the effects
+    let aggregator = new EffectAggregator(stat, memo)
+    each(stat.computationDetails.effects, (effect) => {
+      computeEffect(effect, memo);
+      if (effect._id) stat.dependencies.push(effect._id);
+      stat.dependencies.push(...effect.dependencies);
+      if (!effect.computationDetails.disabledByToggle){
+        aggregator.addEffect(effect);
+      }
+    });
+    // Conglomerate all the effects to compute the final stat values
+    combineStat(stat, aggregator, memo);
+  }
+  // Mark the attribute as computed
+  stat.computationDetails.computed = true;
+  stat.computationDetails.busyComputing = false;
+}