template.js

const variablePattern = /\${([^}]*)}/g;

module.exports = {
    format: (normalStringTemplate, values) => {
        const replacedStr = normalStringTemplate.replace(variablePattern, (match, p1) => values[p1.trim()]);
        const templateStr = `${replacedStr}`;
        return templateStr;
    },
    listVariables: (normalStringTemplate) => {
        const pattern = /\${([^}]*)}/g;
        const matches = normalStringTemplate.match(pattern);

        if (matches) {
            return matches.map(match => match.slice(2, -1).trim());
        } else {
            return [];
        }
    }
}