parseCommon: resolve operator references

lib/resolve-idx-refs.js

@@ -0,0 +1,36 @@
+'use strict'
+
+const scanner = require('object-scan')
+const toPath = require('lodash/toPath')
+const get = require('lodash/get')
+
+// For all items in `tree` matching a path selector specified
+// in `selector`, call `onRef` with the item, its parent and
+// the path to the item.
+// Example:
+// tree: {foo: [{bar: 1}], hey: {there: [{bar: 2}]}}
+// selector: **[*].bar
+const findIdxRefs = (tree, selector, onRef) => {
+	const scan = scanner([selector])
+	for (const pathStr of scan(tree)) {
+		const path = toPath(pathStr)
+		const val = get(tree, path)
+		const parent = get(tree, path.slice(0, -1), {})
+		onRef(val, parent, path)
+	}
+}
+
+// For all items in `tree` matching a path selector specified
+// in `selector`:
+// - interpret the item as an index in `source`
+// - set the parent's field `prop` to `source[item]`
+const resolveIdxRefs = (tree, selector, source, prop) => {
+	findIdxRefs(tree, selector, (idx, parent) => {
+		if ('number' === typeof idx) parent[prop] = source[idx]
+	})
+}
+
+module.exports = {
+	findIdxRefs,
+	resolveIdxRefs
+}

package.json

@@ -41,6 +41,7 @@
 		"gps-distance": "0.0.4",
 		"lodash": "^4.17.5",
 		"luxon": "^1.3.0",
+		"object-scan": "^10.0.9",
 		"p-retry": "^4.1.0",
 		"p-throttle": "^3.1.0",
 		"pinkie-promise": "^2.0.1",

parse/common.js

@@ -1,5 +1,8 @@
 'use strict'
 
+const get = require('lodash/get')
+const {findIdxRefs, resolveIdxRefs} = require('../lib/resolve-idx-refs')
+
 // todo: move to separate file
 const parseIcon = (i) => {
 	const res = {
@@ -11,13 +14,13 @@ const parseIcon = (i) => {
 	return res
 }
 
-const parseCommonData = (profile, opt, raw) => {
-	const res = Object.assign({}, raw)
-	const c = raw.common || {}
+const parseCommonData = (profile, opt, res) => {
+	const c = res.common || {}
 
 	res.operators = []
 	if (Array.isArray(c.opL)) {
 		res.operators = c.opL.map(op => profile.parseOperator(profile, op))
+		resolveIdxRefs(res, '**.oprX', res.operators, 'operator')
 	}
 
 	res.icons = []

parse/line.js

@@ -2,7 +2,7 @@
 
 const slugg = require('slugg')
 
-const createParseLine = (profile, opt, {operators}) => {
+const createParseLine = (profile, opt, _) => {
 	const byBitmask = []
 	for (let product of profile.products) {
 		for (let bitmask of product.bitmasks) {
@@ -37,10 +37,7 @@ const createParseLine = (profile, opt, {operators}) => {
 			res.product = product && product.id || null
 		}
 
-		if ('number' === typeof p.oprX) {
-			res.operator = operators[p.oprX] || null
-		}
-
+		if (p.operator) res.operator = p.operator // todo: move up
 		return res
 	}
 	return parseLine