export interface SelectFileParameters {
    accept?: string;
    multiple?: boolean;
}

export function selectFile(params: SelectFileParameters = {accept: '*', multiple: false}): Promise<FileList> {
    return new Promise((resolve) => {
        const htmlInputElement = document.createElement('input');
        htmlInputElement.style.display = 'none';
        htmlInputElement.type = 'file';
        htmlInputElement.accept = params.accept;
        htmlInputElement.multiple = params.multiple;
        htmlInputElement.addEventListener('change', () => {
            resolve(htmlInputElement.files);
            document.body.removeChild(htmlInputElement);
        });
        document.body.appendChild(htmlInputElement);
        htmlInputElement.click();
    });
}