function orderData(data, order) {
    if (typeof order === 'function') return data.sort(data);
    if (typeof order === 'string') order = [order];
    if (Array.isArray(order)) {
        let orderComp = [];

        for (let field of order) {
            let split = field.split(/\s+/);
            orderComp.push({
                field: split[0],
                way: split[1] === 'DESC' ? -1 : 1,
            });
        }

        return data.sort((a, b) => sortFunc(a, b, orderComp));
    }
    return data;
}

function sortFunc(a, b, order) {
    for (let { field, way } of order) {
        let compRes = compareFunc(a[field], b[field]) * way;
        if (compRes !== 0) return compRes;
    }

    return 0;
}

function compareFunc(a, b) {
    if (a === b) return 0;
    let aType = typeof a;
    if (aType === typeof b) {
        switch (aType) {
            case 'string':
                return a.localeCompare(b);
            case 'number':
                return a - b;
            case 'boolean':
                return a ? 1 : -1;
            case 'object':
                if (a instanceof Date && b instanceof Date)
                    return a.getTime() - b.getTime();
        }
    }

    if (a === undefined) return -1;
    if (b === undefined) return 1;
    if (a === null) return -1;
    if (b === null) return 1;

    return a > b ? 1 : -1;
}

export default orderData;