using System;
using System.Collections.Generic;
using Sandbox;

namespace Sunless.Architecture;

// One staging of a wall treatment, shared by the designer's turntable and the browser's card art. A band
// is judged where it crosses a jamb and passes under a sill, so the elevation carries a door and a window.
public static class ArchWallStage
{
	public const float Span = 264f;

	public static ArchStaged Of( ArchWallPreset unit, ArchKit kit )
	{
		var height = unit.Height > 1f ? unit.Height : kit.WallHeight;
		var wall = unit.Spawn( 2, Vector2.Zero, new Vector2( Span, 0f ) );

		wall.Openings.Add( new ArchOpening
		{
			Id = 3,
			Preset = "door",
			Kind = OpeningKind.Door,
			Offset = Span * 0.28f,
			Width = 48f,
			Height = height * 0.75f,
			SillHeight = 0f
		} );

		wall.Openings.Add( new ArchOpening
		{
			Id = 4,
			Preset = "window",
			Kind = OpeningKind.Window,
			Offset = Span * 0.72f,
			Width = 64f,
			Height = height * 0.3f,
			SillHeight = height * 0.36f,
			HasSill = true,
			Glazed = true,
			Leaf = false
		} );

		var room = new ArchRoom
		{
			Id = 1,
			WallHeight = height,
			HasFloor = false,
			RaisedFoundation = false,
			Walls = new List<ArchWall> { wall }
		};

		var building = new ArchBuilding
		{
			Id = 1,
			Rooms = new List<ArchRoom> { room },
			StoreyHeight = height
		};

		return new ArchStaged(
			new ArchPlan { Units = new List<ArchUnit> { building } },
			new Vector3( Span * 0.5f, 0f, height * 0.5f ),
			MathF.Max( 300f, MathF.Max( Span, height ) * 1.55f ) );
	}

	// Serialised rather than a typed-out field list: a treatment carries nested band and trim lists, and a
	// key that forgot one would show yesterday's elevation for today's brick line.
	public static string Identity( ArchWallPreset unit ) => ArchStageKey.Of( "wall", unit.Name, unit );
}