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'use strict'
const {
cloneDeep,
concat,
first,
findIndex,
forEach,
chain
} = require('lodash')
module.exports = (rules, baseRules) =>
chain(rules)
.reduce((acc, { test, ...rules }) => {
forEach(rules, (innerRules, propName) => {
if (test) forEach(innerRules, rule => (rule.test = test))
// find the rules associated with `propName`
const index = findIndex(acc, item => first(item) === propName)
// if `propName` has more rule, add the new rule from the end
if (index !== -1) acc[index][1] = concat(innerRules, ...acc[index][1])
// otherwise, create an array of rules
else acc.push([propName, innerRules])
})
return acc
}, cloneDeep(baseRules))
.value()
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