using Assimp;
using LearnOpenTK.Common;
using OpenTK.Mathematics;

namespace TheLabs;

public class LevelLoader
{

    private Shader _shader;
    private Texture _texture;
    private Texture _normalTexture;
    private Material _material;
    private Lighting _lighting;
    
    
    public LevelLoader(Shader shader, Texture texture, Texture normalTexture, Material material, Lighting lighting)
    {
        _shader = shader;
        _texture = texture;
        _normalTexture = normalTexture;
        _material = material;
        _lighting = lighting;
    }

    public void LoadLevel(string filepath, SceneNode rootenode, List<BoxCollider> colliders)
    {
        Mesh _mesh = ShapeFactory.CreateTexturedCube();
        RenderObject renderObject = new RenderObject(_mesh, _shader, _texture, _material, _lighting);
        renderObject.NormalMap = _normalTexture;
        renderObject.UseTexture = true;

        if (!File.Exists(filepath))
        {
            throw new FileNotFoundException("The specified level file was not found.", filepath);
        }
        string[] lines = File.ReadAllLines(filepath);
        float spacing = 1.0f;

        for (int z = 0; z < lines.Length; z++)
        {
            string line = lines[z];
            for (int x = 0; x < line.Length; x++)
            {
                char tile = line[x];
                
                SceneNode floorNode = new SceneNode(renderObject);
                floorNode.Position = new Vector3(x * spacing, -0.5f, z * spacing);
                floorNode.Scale = new Vector3(1.0f, 0.1f, 1.0f);
                rootenode.AddChild(floorNode);
                
                if (tile == '1')
                {
                    BoxCollider wallCollider = new BoxCollider(new Vector3(x, 0, z), new Vector3(1, 1, 1));
                    colliders.Add(wallCollider);
                    SceneNode wallNode = new SceneNode(renderObject);
                    wallNode.Position = new Vector3(x * spacing, 0.0f, z * spacing);
                        
                    rootenode.AddChild(wallNode);
                }
            }
        }
    }
}