using UnityEngine;
using UnityEditor;
using UnityEditor.SceneManagement;

namespace Perekyp.EditorTools
{
    [InitializeOnLoad]
    public static class SpawnCubesEditor
    {
        static SpawnCubesEditor()
        {
            EditorApplication.delayCall += SpawnCubesOnce;
        }

        private static void SpawnCubesOnce()
        {
            // Execute spawn of the 6 cubes
            ExecuteSpawn();
        }

        [MenuItem("Tools/Spawn 6 Cubes (2 Rows)")]
        public static void ExecuteSpawn()
        {
            // Clean up previous groups if existing
            GameObject oldGroup1 = GameObject.Find("ThreeCubes");
            if (oldGroup1 != null)
            {
                Undo.DestroyObjectImmediate(oldGroup1);
            }
            GameObject oldGroup2 = GameObject.Find("CubesGroup");
            if (oldGroup2 != null)
            {
                Undo.DestroyObjectImmediate(oldGroup2);
            }

            GameObject parent = new GameObject("CubesGroup");
            Undo.RegisterCreatedObjectUndo(parent, "Create CubesGroup Parent");

            // Row 1 (first 3 cubes) and Row 2 (3 new cubes next to them)
            // Player is around Z = 5.24 facing negative Z, so Z = 3.5 and Z = 2.0 are directly in view.
            Vector3[] positions = new Vector3[]
            {
                // Row 1 (first row)
                new Vector3(-2.0f, 1.0f, 3.5f),
                new Vector3( 0.0f, 1.0f, 3.5f),
                new Vector3( 2.0f, 1.0f, 3.5f),

                // Row 2 (second row, right next to / in front of the first row)
                new Vector3(-2.0f, 1.0f, 2.0f),
                new Vector3( 0.0f, 1.0f, 2.0f),
                new Vector3( 2.0f, 1.0f, 2.0f)
            };

            Color[] colors = new Color[]
            {
                // Row 1: Red, Green, Blue
                new Color(0.95f, 0.26f, 0.21f), // Red
                new Color(0.30f, 0.69f, 0.31f), // Green
                new Color(0.13f, 0.59f, 0.95f), // Blue

                // Row 2: Red, Green, Blue (matching set)
                new Color(0.95f, 0.26f, 0.21f), // Red
                new Color(0.30f, 0.69f, 0.31f), // Green
                new Color(0.13f, 0.59f, 0.95f)  // Blue
            };

            string[] names = new string[]
            {
                "Cube_Red_Row1",
                "Cube_Green_Row1",
                "Cube_Blue_Row1",
                "Cube_Red_Row2",
                "Cube_Green_Row2",
                "Cube_Blue_Row2"
            };

            Shader urpShader = Shader.Find("Universal Render Pipeline/Lit") 
                            ?? Shader.Find("URP/Lit") 
                            ?? Shader.Find("Standard");

            for (int i = 0; i < 6; i++)
            {
                GameObject cube = GameObject.CreatePrimitive(PrimitiveType.Cube);
                cube.name = names[i];
                cube.transform.position = positions[i];
                cube.transform.localScale = Vector3.one;
                cube.transform.SetParent(parent.transform);

                var renderer = cube.GetComponent<Renderer>();
                if (renderer != null && urpShader != null)
                {
                    Material mat = new Material(urpShader);
                    mat.name = $"Mat_{names[i]}";
                    mat.color = colors[i];
                    renderer.sharedMaterial = mat;
                }

                Undo.RegisterCreatedObjectUndo(cube, $"Create {names[i]}");
            }

            Selection.activeGameObject = parent;

            var activeScene = EditorSceneManager.GetActiveScene();
            if (activeScene.IsValid())
            {
                EditorSceneManager.MarkSceneDirty(activeScene);
                EditorSceneManager.SaveScene(activeScene);
                Debug.Log($"[SpawnCubesEditor] Successfully spawned 6 cubes (2 rows of 3) on scene '{activeScene.name}'!");
            }
            else
            {
                Debug.Log("[SpawnCubesEditor] Successfully spawned 6 cubes in the scene!");
            }
        }
    }
}