@using Localization
@using C1.Chart;
@using C1.DataCollection;
@using C1.Blazor.Chart;
@using C1.Blazor.Input;

<TreeMap Class="chart" ItemsSource="Data" Binding="Sales" BindingName="Category" ChildItemsPath="Items" 
         Palette="palette ?? Palette.Standard" Tooltip="{value}" >
    <Label>
        <DataLabel Position="LabelPosition.Center" Content="{name}" />
    </Label>
</TreeMap>

@code {
    IEnumerable<Palette> palettes = Enum.GetValues(typeof(Palette)).Cast<Palette>().Where((p, x) => p!=Palette.Custom);
    Palette? palette = Palette.Standard;

    List<DataSource.ProductData> Data { get; set; }

    protected override void OnInitialized()
    {
        Data = DataSource.GetData();
    }


    public class DataSource
    {
        private static Random rnd = new Random();
        private static string[] categories = "Beverages,Condiments,Confections,Dairy Products,Grains/Cereals,Meat/Poultry,Produce,Seafood".Split(',');
        private static string[][] subCategories = {
            "Soft drinks,Coffees,Teas,Beers,Ales".Split(','),
            "Sweet and Savory sauces,Relishes,Spreads,Seasonings".Split(','),
            "Desserts,Candies,Sweet breads".Split(','),
            "Cheeses".Split(','),
            "Breads,Crackers,Pasta,Cereal".Split(','),
            "Prepared meats".Split(','),
            "Dried fruit,Bean curd".Split(','),
            "Seaweed,Fish".Split(',')
        };

        public class ProductData
        {
            public string Category { get; set; }
            public double Sales { get; set; }
            public List<ProductData> Items { get; set; }
        }

        public static List<ProductData> GetData()
        {
            var data = new List<ProductData>();
            for (var i = 0; i < categories.Length; i++)
            {
                var item = new ProductData() { Category = categories[i], Items = new List<ProductData>() };
                for (var j = 0; j < subCategories[i].Length ; j++)
                {
                    item.Items.Add(new ProductData()
                    {
                        Category = subCategories[i][j],
                        Sales = rnd.Next(10,100)
                    });
                };
                data.Add(item);
            }

            return data;
        }
    }
}