41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
// This file exports the functions of the public computing library
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import { safeLoad } from 'js-yaml'
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import {
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collectDefaults,
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enrichRule,
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nestedSituationToPathMap,
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rulesFr
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} from './rules'
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import { analyseMany, parseAll } from './traverse.js'
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// The public evaluation function takes a nested object of input values
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let nestedSituationToStateSelector = rules => nestedSituation => dottedName =>
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({
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...collectDefaults(rules),
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...nestedSituationToPathMap(nestedSituation)
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}[dottedName])
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let enrichRules = input =>
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(typeof input === 'string' ? safeLoad(input) : input).map(enrichRule)
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export default {
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evaluate: (targetInput, nestedSituation, config) => {
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let rules = config
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? [
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...(config.base ? enrichRules(config.base) : rulesFr),
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...(config.extra ? enrichRules(config.extra) : [])
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]
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: rulesFr
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let evaluation = analyseMany(
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parseAll(rules),
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Array.isArray(targetInput) ? targetInput : [targetInput]
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)(nestedSituationToStateSelector(rules)(nestedSituation))
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if (config?.debug) return evaluation
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let values = evaluation.targets.map(t => t.nodeValue)
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return Array.isArray(targetInput) ? values : values[0]
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}
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}
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