const frenchExcept = ['au', 'de', 'en', 'et', 'je', 'la', 'ma', 'ne', 'qu', 'se', 'si', 'tu'];
const russianExcept = ['ан', 'ат', 'еа', 'еи', 'ет', 'еу', 'ех', 'не', 'те', 'ут', 'цу'];
const swedishExcept = ['av', 'de', 'en', 'på', 'är'];

function wordCounter(text, minLength) {
    const res = text.toLowerCase().split(/[\s,'.-]+/)
        .filter(val => [
            ...frenchExcept,
            ...russianExcept,
            ...swedishExcept
        ].includes(val) || val.length > minLength);

    return res.reduce((acc, curr) => {
        acc[curr] = res.filter(val => val === curr).length;
        return acc;
    }, {});
}

module.exports = wordCounter;