$(document).ready(function() {

    $("#message_chat_form_files-edit").change(function(event){
        var fileInput = document.getElementById("message_chat_form_files-edit");
        var fileInputStatic = new Object();
        /*const selectedFiles = fileInput.files;
        console.log(selectedFiles);
        console.log(fileInput.files);
        console.log(typeof(fileInput.files));
        console.log(typeof(fileInput.files[0]));*/
        $("#files-info").empty();
        $("#files-info").append('<dl id="files-info-list">');
        for (var i = 0; i < fileInput.files.length; i++) {
            fileInputStatic[i] = fileInput.files[i];
            $("#files-info-list").append('<li style="margin: 4px 0">' + fileInput.files[i]['name'] + '&nbsp;&nbsp;<a href="#" class="remove-file" data-ifile="' + i + '">⨉</a></li>');
        }

        $(".remove-file").click(function(event){
            event.preventDefault();
            var ifile = $(this).attr('data-ifile');
            $("#files-info-list a[data-ifile=" + ifile + "]").parent().remove();
            var fileInputBuffer = new DataTransfer();
            
            delete fileInputStatic[ifile];
            for(var k in fileInputStatic){
                fileInputBuffer.items.add(fileInputStatic[k]);
            }
            fileInput.files = fileInputBuffer.files;
            console.log(fileInputBuffer);
        });
    });

    $("#message_chat_form").submit(function(event){
        $("#message_chat_form_submit-edit").html("Сообщение отправляется...");
        $("#message_chat_form_submit-edit").attr('disabled', true);
    });

    if($("#message_chat_form_category-edit").val() == 'Другое'){
        $("#message_chat_form_other_category-block").show();
    }
    else {
        $("#message_chat_form_other_category-block").hide();
    }

    $("#message_chat_form_category-edit").change(function(){
        if($("#message_chat_form_category-edit").val() == 'Другое'){
            $("#message_chat_form_other_category-block").show();
            $("#message_chat_form_other_category-edit").attr('required', 'required');
        }
        else {
            $("#message_chat_form_other_category-block").hide();
            $("#message_chat_form_other_category-edit").removeAttr('required');
        }
    });

});