44 lines
1.3 KiB
JavaScript
44 lines
1.3 KiB
JavaScript
import { dropLast, isEmpty, last } from 'ramda'
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import { joinName, splitName } from './rules'
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let evaluateBottomUp = situationGate => startingFragments => {
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let rec = (parentFragments, childFragments = []) =>
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parentFragments.length == 0
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? null
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: (function() {
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let query = joinName(parentFragments),
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expectedResult = isEmpty(childFragments)
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? 'oui'
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: joinName(childFragments)
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return situationGate(query) == null
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? rec(dropLast(1)(parentFragments), [
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last(parentFragments),
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...childFragments
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])
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: situationGate(query) == expectedResult
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})()
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return rec(startingFragments)
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}
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let formatBooleanValue = { oui: true, non: false }
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export let getSituationValue = (situationGate, variableName, rule) => {
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// get the current situation value
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// it's the user input or test input, possibly with default values
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let value = situationGate(variableName)
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if (rule.API) return typeof value == 'string' ? JSON.parse(value) : value
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if (rule.unit != null) {
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return value == undefined ? null : +value
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}
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// a leaf variable with an unit attribute is not boolean
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if (formatBooleanValue[value] !== undefined) return formatBooleanValue[value]
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if (rule.formule && rule.formule['une possibilité'])
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return evaluateBottomUp(situationGate)(splitName(variableName))
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return value
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}
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