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/*!
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
import Matomo from './Matomo/Matomo';
function calculateEvolution(currentValue: string|number, pastValue: string|number) {
const pastValueParsed = parseInt(pastValue as string, 10);
const currentValueParsed = parseInt(currentValue as string, 10) - pastValueParsed;
let evolution: number;
if (currentValueParsed === 0 || Number.isNaN(currentValueParsed)) {
evolution = 0;
} else if (pastValueParsed === 0 || Number.isNaN(pastValueParsed)) {
evolution = 100;
} else {
evolution = (currentValueParsed / pastValueParsed) * 100;
}
return evolution;
}
function formatEvolution(evolution: number) {
return `${evolution > 0 ? Matomo.numbers.symbolPlus : ''}${Math.round(evolution)}}%`;
}
export default function getFormattedEvolution(
currentValue: string|number,
pastValue: string|number,
): string {
const evolution = calculateEvolution(currentValue, pastValue);
return formatEvolution(evolution);
}
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