old-new-wiaas/frontend/src/helpers/DocumentHelper.js

const iconTypes = {
    doc: 'file-word-o',
    docx: 'file-word-o',
    odt: 'file-word-o',
    ods: 'file-excel-o',
    pdf: 'file-pdf-o',
    png: 'file-image-o',
    jpg: 'file-image-o',
    xls: 'file-excel-o',
    xlsx: 'file-excel-o',
    ppt: 'file-powerpoint-o',
    pptx: 'file-powerpoint-o',
    zip: 'file-zip-o'
};

export const getDocumentIcon = extension => {
    return iconTypes[extension] || 'file';
};