using Jobberwocky.GeometryAlgorithms.Examples.Data;
using Jobberwocky.GeometryAlgorithms.Extrusion;
using Jobberwocky.GeometryAlgorithms.Source.API;
using Jobberwocky.GeometryAlgorithms.Source.Parameters;
using UnityEngine;

namespace Jobberwocky.GeometryAlgorithms.Examples
{
    public class ExtrusionScript : MonoBehaviour
    {
        private ShapeType _shapeType;
        public ShapeType shapeType;

        private float _height;
        public float height;

        public bool autoHeight;
        private float _stepSize = 0.05f;
        private float _minBound = -8f;
        private float _maxBound = 8f;

        private MeshFilter _meshFilter;
        private Mesh _triangulatedMesh;

        private ExtrusionAlgorithm _extrusionAlgorithm;
        private TriangulationAPI _triangulationApi;

        private void Start()
        {
            _triangulationApi = new TriangulationAPI();
            _extrusionAlgorithm = ExtrusionAlgorithm.Instance;
            _meshFilter = gameObject.AddComponent<MeshFilter>();

            CreateExtrudedMesh();
        }

        private void Update()
        {
            if (autoHeight) {
                if (height < _minBound || height > _maxBound) {
                    _stepSize *= -1;
                }

                height += _stepSize;
            }

            if (!Mathf.Approximately(_height, height)) {
                _height = height;

                _meshFilter.mesh = _extrusionAlgorithm.Extrude(_triangulatedMesh, _height);
            }

            if (_shapeType != shapeType) {
                _shapeType = shapeType;

                CreateExtrudedMesh();
            }
        }

        private void CreateExtrudedMesh()
        {
            var shape = Data.Data.Get(shapeType);

            var parameters = new Triangulation2DParameters();
            parameters.Points = shape.Points;
            parameters.Boundary = shape.Boundary;
            parameters.Holes = shape.Holes;
            parameters.Delaunay = true;

            //_triangulatedMesh = _triangulationApi.Triangulate2D(parameters);

            _meshFilter.mesh = _extrusionAlgorithm.Extrude(_triangulatedMesh, _height);
        }
    }
}