@using System.Text
@using Radzen.Blazor
@using Radzen.Blazor.Rendering
@typeparam TItem
@inherits Radzen.Blazor.CartesianSeries<TItem>
<CascadingValue Value="@this">
  @ChildContent
</CascadingValue>
@code {
  public override RenderFragment Render(ScaleBase categoryScale, ScaleBase valueScale)
  {
    var category = ComposeCategory(categoryScale);

    var value = ComposeValue(valueScale);

    var pathGenerator = GetPathGenerator();

    var data = Items.Select(item =>
    {
      var x = category(item);
      var y = value(item);

      return new Point<TItem> { X = x, Y = y, Data = item };
    }).ToList();

    var chart = RequireChart();
    var style = $"clip-path: url(#{chart.ClipPath}); -webkit-clip-path: url(#{chart.ClipPath});";
    var index = chart.Series.IndexOf(this);
    var className = $"rz-line-series rz-series-{index}";

    return
    @<g class="@className">
      @if (Items.Any())
      {
        var path = $"M {pathGenerator.Path(data)}";
        var key = $"{path}-{LineType}";
        <Path @key=@key Style="@style" D="@path" StrokeWidth="@StrokeWidth" Stroke="@Stroke" LineType="@LineType" Fill="none" />
      }
      <Markers Visible="@Markers.Visible" Series="@this" Data="@data" MarkerType="@MarkerType" Stroke="@Markers.Stroke" Fill="@(Markers.Fill ?? Stroke)" StrokeWidth="@Markers.StrokeWidth" Size="@Markers.Size" />
    </g>;
  }
}
