Substantial progress on rebuilding computation engine

app/imports/api/creature/computation/newEngine/buildComputation/parseCalculationFields.js

@@ -0,0 +1,35 @@
+import { prettifyParseError, parse } from '/imports/parser/parser.js';
+import ErrorNode from '/imports/parser/parseTree/ErrorNode.js';
+import applyFnToKey from '/imports/api/creature/computation/newEngine/utility/applyFnToKey.js';
+
+export default function parseCalculationFields(prop, schemas){
+  // For each key in the schema
+  schemas[prop.type]._schemaKeys.forEach( key => {
+    //  that ends in '.calculation'
+    if (key.slice(-12) !== '.calculation') return;
+    const calcKey = key.sclice(0, -12);
+
+    // For all fields matching they keys
+    // supports `keys.$.with.$.arrays`
+    applyFnToKey(prop, calcKey, calcObj => {
+      // Store a reference to all the calculations
+      prop._computationDetails.calculations.push(calcObj);
+      // Parse the calculation
+      parseCalculation(calcObj);
+    });
+
+  });
+}
+
+function parseCalculation(calcObj){
+  let calculation = calcObj.calculation || '';
+  try {
+    calcObj._parsedCalculation = parse(calculation);
+  } catch (e) {
+    let error = prettifyParseError(e);
+    calcObj.errors ?
+      calcObj.errors.push(error) :
+      calcObj.errors = [error];
+    calcObj._parsedCalculation = new ErrorNode({error});
+  }
+}