47 lines
1.4 KiB
TypeScript
47 lines
1.4 KiB
TypeScript
import { Table, Variable } from 'models'
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import { isDefined } from 'utils'
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const safeEval = eval
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export const stringContainsVariable = (str: string): boolean =>
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/\{\{(.*?)\}\}/g.test(str)
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export const parseVariables = (
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text: string,
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variables: Table<Variable>
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): string => {
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if (text === '') return text
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return text.replace(/\{\{(.*?)\}\}/g, (_, fullVariableString) => {
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const matchedVarName = fullVariableString.replace(/{{|}}/g, '')
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const matchedVariableId = variables.allIds.find((variableId) => {
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const variable = variables.byId[variableId]
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return matchedVarName === variable.name && isDefined(variable.value)
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})
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return variables.byId[matchedVariableId ?? '']?.value ?? ''
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})
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}
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export const isMathFormula = (str?: string) =>
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['*', '/', '+', '-'].some((val) => str && str.includes(val))
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export const evaluateExpression = (str: string) => {
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let result = replaceCommasWithDots(str)
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try {
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const evaluatedNumber = safeEval(result) as number
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if (countDecimals(evaluatedNumber) > 2) {
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return evaluatedNumber.toFixed(2)
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}
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return evaluatedNumber.toString()
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} catch (err) {
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return result
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}
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}
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const replaceCommasWithDots = (str: string) =>
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str.replace(new RegExp(/(\d+)(,)(\d+)/, 'g'), '$1.$3')
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const countDecimals = (value: number) => {
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if (value % 1 != 0) return value.toString().split('.')[1].length
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return 0
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}
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