@model Disco.Web.Models.Device.ImportHeadersModel
@{
    Authorization.Require(Claims.Device.Actions.Import);

    ViewBag.Title = Html.ToBreadcrumb("Devices", MVC.Device.Index(), "Import Devices", MVC.Device.Import(), Model.Context.DatasetName);
}
<div id="Devices_Import_Headers">

    <h2>Define Import Columns</h2>

    @if (Model.Context.RecordCount > 10)
    {
        <h4 class="alert">@Model.Context.RecordCount records were loaded, only the first 10 are shown here.</h4>
    }

    <h4 id="Devices_Import_Headers_DeviceSerialNumberRequired" class="error">The Device Serial Number column must be defined.</h4>

    <div id="Devices_Import_Headers_TableContainer">
        <table class="tableData">
            <thead>
                <tr>
                    @foreach (var header in Model.Context.Columns)
                    {
                        <th data-headerindex="@header.Index" class="header@(header.Type.ToString())">@header.Name</th>
                    }
                </tr>
                <tr>
                    @foreach (var header in Model.Context.Columns)
                    {
                        <td data-headerindex="@header.Index" class="header@(header.Type.ToString())">
                            <ul class="importHeaderType" data-headerindex="@header.Index" data-headertype="@header.Type.ToString()">
                                <li>
                                    <a href="#"><span class="headerTypeTitle">@(Model.HeaderTypes.FirstOrDefault(h => h.Item1 == header.Type).Item2)</span></a>
                                    <ul>
                                        @foreach (var headerType in Model.HeaderTypes)
                                        {
                                            <li data-headertype="@headerType.Item1"><a href="#">@headerType.Item2</a></li>
                                        }
                                    </ul>
                                </li>
                            </ul>
                        </td>
                    }
                </tr>
            </thead>
            <tbody>
                @using (var dataReader = Model.Context.GetDataReader())
                {
                    for (int r = 0; r < Math.Min(10, Model.Context.RecordCount); r++)
                    {
                        dataReader.Read();
                        <tr>
                            @for (int c = 0; c < Model.Context.ColumnCount; c++)
                            {
                                <td data-headerindex="@c">@dataReader.GetString(c)</td>
                            }
                        </tr>
                    }
                }
            </tbody>
        </table>
    </div>
    <div class="actionBar">
        @using (Html.BeginForm(MVC.API.Device.ImportParse(Model.Context.SessionId, null)))
        {
            @Html.AntiForgeryToken()
            <a id="Devices_Import_Headers_Submit" href="#" class="button">Parse Device Import</a>
        }
    </div>
</div>
<div id="Devices_Import_Parsing_Dialog" class="dialog" title="Parsing devices import...">
    <h4><i class="fa fa-lg fa-cog fa-spin" title="Please Wait"></i>Parsing device import...</h4>
</div>
<script>
    $(function () {
        var headerTypes = {
            @foreach (var h in Model.HeaderTypes)
            {
                <text>'@(h.Item1)': '@(h.Item2)',</text>
            }
        };

        var $Devices_Import_Headers_TableContainer = $('#Devices_Import_Headers_TableContainer');
        var $importHeaderTypes = $Devices_Import_Headers_TableContainer.find('thead').find('ul.importHeaderType');
        var $Devices_Import_Headers_DeviceSerialNumberRequired = $('#Devices_Import_Headers_DeviceSerialNumberRequired');
        var $Devices_Import_Headers_Submit = $('#Devices_Import_Headers_Submit');
        var $Devices_Import_Parsing_Dialog = null;

        function getUsedHeaders() {
            return $importHeaderTypes.map(function () { return $(this).attr('data-headertype'); }).filter(function () { return this != 'IgnoreColumn' }).get();
        }

        function updateHeaderOptions() {
            var usedHeaders = getUsedHeaders();
            var deviceSerialNumberPresent = (usedHeaders.indexOf('DeviceSerialNumber') >= 0);

            if (deviceSerialNumberPresent) {
                $Devices_Import_Headers_Submit.attr('disabled', null);
                $Devices_Import_Headers_DeviceSerialNumberRequired.hide();
            } else {
                $Devices_Import_Headers_DeviceSerialNumberRequired.show();
                $Devices_Import_Headers_Submit.attr('disabled', 'disabled');
            }

            $importHeaderTypes.each(function () {
                var $header = $(this);
                var $headerType = $header.attr('data-headertype');
                $header.find('li[data-headertype]').each(function () {
                    var $headerOption = $(this);
                    var $headerOptionType = $headerOption.attr('data-headertype');
                    if ($headerOptionType === $headerType) {
                        $headerOption.removeClass('ui-state-disabled');
                        $headerOption.addClass('ui-state-highlight');
                    } else if (usedHeaders.indexOf($headerOptionType) < 0) {
                        $headerOption.removeClass('ui-state-disabled ui-state-highlight');
                    } else {
                        $headerOption.removeClass('ui-state-highlight');
                        $headerOption.addClass('ui-state-disabled');
                    }
                })
            });
        }

        function updateDataStyle(index, headerType) {
            $Devices_Import_Headers_TableContainer.find('tbody').find('td[data-headerindex="' + index + '"]').removeClass().addClass('header' + headerType);
            $Devices_Import_Headers_TableContainer.find('thead').find('td[data-headerindex="' + index + '"], th[data-headerindex="' + index + '"]').removeClass().addClass('header' + headerType);
        }

        $Devices_Import_Headers_TableContainer.find('thead').on('menuselect', 'ul.importHeaderType', function (e, ui) {
            var headerType = ui.item.attr('data-headertype');

            if (headerType !== undefined) {
                var $this = $(this).closest('ul.importHeaderType');
                var headerIndex = $this.attr('data-headerindex');
                var headerTypeName = headerTypes[headerType];
                $this.attr('data-headertype', headerType).find('span.headerTypeTitle').text(headerTypeName);
                updateDataStyle(headerIndex, headerType);
                updateHeaderOptions();
            }
        });

        // Add Type Options
        $importHeaderTypes.each(function () {
            var $this = $(this);
            var thisHeaderIndex = $this.attr('data-headerindex');
            var thisHeaderType = $this.attr('data-headertype');
            updateDataStyle(thisHeaderIndex, thisHeaderType);
        }).menu({ position: { my: "left top", at: "left bottom" } });

        updateHeaderOptions();

        $('#Devices_Import_Headers_Submit').click(function () {

            // Validate Device Serial Number Present
            var usedHeaders = getUsedHeaders();
            var deviceSerialNumberPresent = (usedHeaders.indexOf('DeviceSerialNumber') >= 0);
            if (!deviceSerialNumberPresent) {
                updateHeaderOptions();
                $Devices_Import_Headers_DeviceSerialNumberRequired.show('highlight');
            } else {
                var $form = $(this).closest('form');

                // Build Form
                $importHeaderTypes.each(function () {
                    var $this = $(this);
                    var thisHeaderIndex = $this.attr('data-headerindex');
                    var thisHeaderType = $this.attr('data-headertype');

                    $(document.createElement('input')).attr({ type: 'hidden', name: 'Headers[' + thisHeaderIndex + ']', value: thisHeaderType }).appendTo($form);
                });

                // Submit Form
                if ($Devices_Import_Parsing_Dialog == null) {
                    $Devices_Import_Parsing_Dialog = $('#Devices_Import_Parsing_Dialog').dialog({
                        width: 400,
                        height: 160,
                        resizable: false,
                        modal: true,
                        autoOpen: false
                    });
                }
                $Devices_Import_Parsing_Dialog.dialog('open');
                $form.submit();
            }

            return false;
        });
    });
</script>