40 lines
1.2 KiB
JavaScript
40 lines
1.2 KiB
JavaScript
import { isEmpty, dropLast, last } from 'ramda'
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import { splitName, joinName } 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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: do {
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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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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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/* Evalue la valeur d'une variable
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en utilisant la fonction situationGate qui donne accès à la situation courante*/
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export let evaluateVariable = (situationGate, variableName, rule) => {
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// test rec
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let value = situationGate(variableName)
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if (rule.format != null) return value
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//boolean variables don't have a format prop, it's the default
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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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