using Fluctio.FluctioSim.Core.Components.Base;
using Fluctio.FluctioSim.Utils.Extensions;
using Fluctio.FluctioSim.Utils.General;
using UnityEngine;

#if UNITY_EDITOR
using UnityEditor;
#endif

namespace Fluctio.FluctioSim.Core.Components.Prefabs.HeightField.Base
{
	public abstract class RemappedLayer: HeightFieldLayer
	{
		[field: SerializeField] private Vector2 StartCoords { get; set; } = Vector2.zero;
		[field: SerializeField] private Vector2 EndCoords { get; set; } = Vector2.one;

		public sealed override float GetHeightAt(Vector2 normalPosition)
		{
			var remappedPosition = VectorExtensions.Lerp(StartCoords, EndCoords, normalPosition);
			return GetHeightAtRemapped(remappedPosition);
		}

		protected abstract float GetHeightAtRemapped(Vector2 remappedPosition);
	}

	#if UNITY_EDITOR
	[CustomEditor(typeof(RemappedLayer), true)]
	[CanEditMultipleObjects]
	public class RemappedLayerEditor : EditorComponentEditor
	{
		private SerializedProperty _startCoords;
		private SerializedProperty _endCoords;

		private void GetProperty(string propertyName, out string fieldName, out SerializedProperty property)
		{
			fieldName = Util.GetBackingFieldName(propertyName);
			property = serializedObject.FindProperty(fieldName);
		}

		private void DrawSlider(string component)
		{
			var minProperty = _startCoords.FindPropertyRelative(component);
			var maxProperty = _endCoords.FindPropertyRelative(component);
			var minValue = minProperty.floatValue;
			var maxValue = maxProperty.floatValue;
			var label = ObjectNames.NicifyVariableName(component);
			EditorGUILayout.MinMaxSlider(label, ref minValue, ref maxValue, 0f, 1f);
			minProperty.floatValue = minValue;
			maxProperty.floatValue = maxValue;
		}
		
		public override void OnInspectorGUI()
		{
			serializedObject.Update();
			GetProperty("StartCoords", out var startCoordsName, out _startCoords);
			GetProperty("EndCoords", out var endCoordsName, out _endCoords);
			DrawPropertiesExcluding(serializedObject, "m_Script", startCoordsName, endCoordsName);
			DrawSlider("x");
			DrawSlider("y");
			serializedObject.ApplyModifiedProperties();
		}
	}
	#endif
}