Software/Visual_Studio/Tango.BL/Catalogs/CatalogLoader.cs


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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL.Enumerations;

namespace Tango.BL.Catalogs
{
    public static class CatalogLoader
    {
        public static Catalog LoadCatalog(ColorSpaces colorSpace, ObservablesContext context)
        {
            var all_items = context.ColorCatalogs.Where(x => x.ColorSpace.Code == (int)colorSpace).ToList();

            all_items = all_items.DistinctBy(x => x.Name).ToList();

            var first = all_items.First();

            Catalog catalog = new Catalog();
            catalog.ColorSpace = first.ColorSpace;
            catalog.Name = first.ColorSpace.Description;

            foreach (var item in all_items.GroupBy(x => x.ColorGroup))
            {
                CatalogGroup group = new CatalogGroup();
                group.Name = item.First().ColorGroup;

                foreach (var i in item)
                {
                    group.Items.Add(new CatalogItem(i));
                }

                catalog.Groups.Add(group);
            }

            return catalog;
        }

        public static Catalog GetRecent(Catalog source, List<String> names)
        {
            var filtersItems = source.Groups.SelectMany(x => x.Items).Select(x => x.Entity).Where(x => names.Contains(x.Name)).ToList();

            var first = filtersItems.FirstOrDefault();

            Catalog catalog = new Catalog();

            if (first != null)
            {
                catalog.ColorSpace = first.ColorSpace;
                catalog.Name = first.ColorSpace.Description;

                foreach (var item in filtersItems.GroupBy(x => x.ColorGroup))
                {
                    CatalogGroup group = new CatalogGroup();
                    group.Name = item.First().ColorGroup;

                    foreach (var i in item)
                    {
                        group.Items.Add(new CatalogItem(i));
                    }

                    catalog.Groups.Add(group);
                }
            }

            return catalog;
        }
    }
}