@namespace AntDesign
@inherits ColumnBase
@using AntDesign.Core.Helpers
@using AntDesign.TableModels
@typeparam TData

@if (IsInitialize)
{
    return;
}
else if (IsPlaceholder)
{
    <td style="padding: 0px; border: 0px; height: 0px;"></td>
}
else if (IsMeasure)
{
    <td style="padding: 0px; border: 0px; height: 0px;"><div style="height: 0px; overflow: hidden;">&nbsp;</div></td>
}
else if (IsColGroup)
{
    @if (AppendExpandColumn)
    {
        <col class="ant-table-expand-icon-col">
    }

    if (Width != null)
    {
        <col style="width: @((CssSizeLength)Width); min-width: @((CssSizeLength)Width);">
    }
    else
    {
        <col />
    }
}
else if (IsHeader && HeaderColSpan != 0)
{

    @if (AppendExpandColumn)
    {
        <th class="ant-table-cell ant-table-row-expand-icon-cell"></th>
    }

    var headerCellAttributes = OnHeaderCell?.Invoke();

    <th class="@ClassMapper.Class" style="@FixedStyle @HeaderStyle" colspan="@HeaderColSpan" title="@(Ellipsis?HeaderTitle:"")" @attributes="headerCellAttributes">
        @if (Sortable || Filters?.Any() == true)
        {
            @FilterToolTipSorter(this)
        }
        else if (TitleTemplate != null)
        {
            @TitleTemplate
        }
        else
        {
            @HeaderTitle
        }
    </th>
}
else if (IsBody && RowSpan != 0 && ColSpan != 0)
{

    var fieldText = !string.IsNullOrWhiteSpace(Format) ? Formatter<TData>.Format(Field, Format) : Field?.ToString();

    @if (AppendExpandColumn)
    {
        <td class="ant-table-cell ant-table-row-expand-icon-cell">
            @if (Table.RowExpandable(RowData) && (!Table.TreeMode || !RowData.HasChildren))
            {
                <button type="button" @onclick="ToggleTreeNode"
                        class="ant-table-row-expand-icon @(RowData.Expanded?"ant-table-row-expand-icon-expanded":"ant-table-row-expand-icon-collapsed")"
                        aria-label="@(RowData.Expanded?Table.Locale.Collapse:Table.Locale.Expand)"></button>
            }
        </td>
    }

    var cellAttributes = OnCell?.Invoke(RowData);

    <td class="@ClassMapper.Class" style="@FixedStyle @Style" rowspan="@RowSpan" colspan="@ColSpan" title="@(Ellipsis? fieldText:"")" @attributes="cellAttributes">
        @if (ColIndex == Table.TreeExpandIconColumnIndex && Table.TreeMode)
        {
            <span class="ant-table-row-indent indent-level-@RowData.Level" style="padding-left: @((CssSizeLength)(RowData.Level * Table.IndentSize));"></span>
            @if (RowData.HasChildren)
            {
                <button type="button" @onclick="ToggleTreeNode" class="ant-table-row-expand-icon @(RowData?.Expanded==true?"ant-table-row-expand-icon-expanded":"ant-table-row-expand-icon-collapsed")" aria-label="@(RowData?.Expanded==true?Table.Locale.Collapse:Table.Locale.Expand)"></button>
            }
            else
            {
                <button type="button" class="ant-table-row-expand-icon ant-table-row-expand-icon-spaced" aria-label="@Table.Locale.Expand"></button>
            }
        }

        @if (CellRender != null)
        {
            @CellRender(Field)
        }
        else if (ChildContent != null)
        {
            @ChildContent
        }
        else
        {
            if (!string.IsNullOrWhiteSpace(Format))
            {
                @(Formatter<TData>.Format(GetValue != null ? GetValue(RowData) : Field, Format))
            }
            else
            {
                @(GetValue != null ? GetValue(RowData) : Field)
            }
        }
    </td>
}

@code
{

    string HeaderTitle => Title ?? DisplayName ?? FieldName ?? DataIndex;

    readonly RenderFragment<Column<TData>> SortHeader = col =>
    @<div class="ant-table-column-sorters">
        <span>
            @if (col.TitleTemplate != null)@col.TitleTemplate else @col.HeaderTitle
        </span>
        @{
            bool hasDescendingSorter = SortDirection.Descending.IsIn(col.SortDirections);
            bool hasAscendingSorter = SortDirection.Ascending.IsIn(col.SortDirections);
        }
        <span class="ant-table-column-sorter @(hasDescendingSorter && hasAscendingSorter?"ant-table-column-sorter-full":"")">
            <span class="ant-table-column-sorter-inner">
                @if (hasAscendingSorter)
                {
                    <Icon Type="caret-up" Class=@($"ant-table-column-sorter-up {(col._sortDirection == SortDirection.Ascending? "active":"")}") />
                }
                @if (hasDescendingSorter)
                {
                    <Icon Type="caret-down" Class=@($"ant-table-column-sorter-down {(col._sortDirection == SortDirection.Descending ? "active" : "")}") />
                }
            </span>
        </span>
    </div>;

readonly RenderFragment<Column<TData>> ToolTipSorter = col =>
@<Template>
    @if (col.ShowSorterTooltip)
    {
        <Tooltip Title="@col.SorterTooltip">
            <Unbound>
                <div class="ant-table-column-sorters-with-tooltip" @ref="context.Current">
                    @col.SortHeader(col)
                </div>
            </Unbound>
        </Tooltip>
    }
    else
    {
        @col.SortHeader(col)
    }
</Template>;

readonly RenderFragment<Column<TData>> FilterToolTipSorter = col =>
@<Template>
    @if (col.Filters?.Any() == true)
    {
        <div class="ant-table-filter-column">
            <span class="ant-table-filter-column-title" @attributes="@(new Dictionary<string, object>() { ["onclick"]=_callbackFactory.Create(col, col.HandleSort )})">
                @if (col.Sortable)
                {
                    @col.ToolTipSorter(col)
                }
            </span>
            <Dropdown 
                Trigger="new[] { TriggerType.Click }"
                Visible="col._filterOpened" 
                Placement="PlacementType.BottomRight" 
                TriggerReference="col._filterTriggerRef"
                @attributes="@(new Dictionary<string, object>() { ["OnMaskClick"] = _callbackFactory.Create(col, ()=> col.FilterConfirm()) })"
            >
                <Unbound>
                    <span @ref="@col._filterTriggerRef" class="ant-table-filter-trigger-container @(col._filterOpened?" ant-table-filter-trigger-container-open":"")">
                        <span role="button" tabindex="-1" class="ant-dropdown-trigger ant-table-filter-trigger @(col._hasFilterSelected?"active":"")"
                              @attributes="@(new Dictionary<string, object>() { ["onclick"] = _callbackFactory.Create<MouseEventArgs>(col, () => col._filterOpened = !col._filterOpened )})">
                            <Icon Type="filter" Theme="fill" />
                        </span>
                    </span>
                </Unbound>
                <Overlay>
                    <div class="ant-table-filter-dropdown">
                        <Menu AutoCloseDropdown="false" SelectedKeys="col._selectedFilterValues">
                            @foreach (var filter in col.Filters)
                            {
                                <MenuItem Key="@filter.Value.ToString()" @attributes="@(new Dictionary<string, object>() { ["OnClick"] = _callbackFactory.Create<MouseEventArgs>(col, () => col.FilterSelected(filter))})">
                                    @if (col.FilterMultiple)
                                    {
                                        <Checkbox Value="filter.Selected" @attributes="@(new Dictionary<string, object>() { ["ValueChanged"] = _callbackFactory.Create<bool>(col, value => col.FilterSelected(filter)) })">@filter.Text</Checkbox>
                                    }
                                    else
                                    {
                                        <Radio TValue="bool" Checked="filter.Selected" @attributes="@(new Dictionary<string, object>() { ["CheckedChanged"] = _callbackFactory.Create<bool>(col, value => col.FilterSelected(filter))})">@filter.Text</Radio>
                                    }
                                </MenuItem>
                            }
                        </Menu>
                        <div class="ant-table-filter-dropdown-btns">
                            <Button Size="small" Type="link" @attributes="@(new Dictionary<string, object>() { ["OnClick"] = _callbackFactory.Create<MouseEventArgs>(col, ()=> col.FilterReset()) })">
                                @col.Table?.Locale.FilterReset
                            </Button>
                            <Button Size="small" Type="primary" @attributes="@(new Dictionary<string, object>() { ["OnClick"] = _callbackFactory.Create<MouseEventArgs>(col, ()=> col.FilterConfirm()) })">
                                @col.Table?.Locale.FilterConfirm
                            </Button>
                        </div>
                    </div>
                </Overlay>
            </Dropdown>
        </div>
    }
    else
    {
        @if (col.Sortable)
        {
             <div @attributes="@(new Dictionary<string, object>() { ["onclick"]=_callbackFactory.Create(col, col.HandleSort )})">
                 @col.ToolTipSorter(col)
             </div>
        }
        else if (col.TitleTemplate != null)
        {
            @col.TitleTemplate
        }
        else
        {
            @col.HeaderTitle
        }
    }
</Template>;

}