using System;
using System.Linq;
using Editor;

namespace Sunless.Architecture;

// The drag options both opening tools share, laid out once so the two sidebars cannot drift apart.
public static class ArchOpeningUi
{
	// The whole furniture control: one exclusive pick in the grid the kind's other options already stand in.
	// What a kind may carry comes from ArchOpeningKinds and the pitch, proud and frame are kit stock, so there
	// is nothing else here to offer.
	public static void Furniture( ArchIconGrid grid, OpeningKind kind, OpeningFurniture fitted, Action<OpeningFurniture> chosen )
	{
		var offered = kind.Furnishings().ToList();

		if ( offered.Count == 0 )
		{
			return;
		}

		grid.Pick( Advice( OpeningFurniture.None ), Slug( OpeningFurniture.None ), Glyph( OpeningFurniture.None ),
			fitted == OpeningFurniture.None, () => chosen( OpeningFurniture.None ) );

		foreach ( var furniture in offered )
		{
			var picked = furniture;

			grid.Pick( Advice( picked ), Slug( picked ), Glyph( picked ), fitted == picked, () => chosen( picked ) );
		}
	}

	static string Slug( OpeningFurniture furniture ) => $"opt_furniture_{furniture}".ToLowerInvariant();

	static string Advice( OpeningFurniture furniture ) => furniture switch
	{
		OpeningFurniture.Bars => "Burglar bars across it",
		OpeningFurniture.Boarded => "Boarded over with planks",
		OpeningFurniture.Shutter => "Roller shutter down over it",
		OpeningFurniture.Gate => "Security gate across it",
		_ => "Nothing over it"
	};

	// Classic Material Icons only - a glyph the editor's older set does not know draws an empty box.
	static string Glyph( OpeningFurniture furniture ) => furniture switch
	{
		OpeningFurniture.Bars => "fence",
		OpeningFurniture.Boarded => "table_rows",
		OpeningFurniture.Shutter => "density_small",
		OpeningFurniture.Gate => "grid_on",
		_ => "block"
	};
}