using System.Collections;
using Unity.Entities;
using Unity.Mathematics;
using UnityEngine;

namespace HappyForest.Prototypen
{
    public class PilleSpawnerWithPrefab : MonoBehaviour
    {
        [SerializeField] private GameObject pillePrefab;
        private int pilleCount = 0;
        private float lastSpawnTime = 0f;
        private float spawnDelay = 0.05f;
        private Transform pilleContainer;

        void Start()
        {
            if (pillePrefab == null)
            {
                Debug.LogError("❌ Pille Prefab nicht zugewiesen!");
                return;
            }

            pilleContainer = new GameObject("PilleInstances").transform;
        }

        void Update()
        {
            if (Time.time - lastSpawnTime < spawnDelay)
                return;

            if (Input.GetKey(KeyCode.Space))
            {
                SpawnPille();
                lastSpawnTime = Time.time;
            }

            if (Input.GetKey(KeyCode.M))
            {
                DeleteRandomPille();
                lastSpawnTime = Time.time;
            }

            if (Input.GetKey(KeyCode.C))
            {
                // Spawn 100 Pillen mit Delay, jede bei einer anderen Pille
                StartCoroutine(SpawnMultiplePillen(100));
                lastSpawnTime = Time.time;
            }
        }

        void SpawnPille()
        {
            if (pillePrefab == null)
                return;

            // Zufällige horizontale Richtung
            var random = new Unity.Mathematics.Random((uint)System.Guid.NewGuid().GetHashCode());
            float angle = random.NextFloat() * math.PI * 2;
            var velocity = new Vector3(math.cos(angle), 0, math.sin(angle));

            // Spawn-Position: Bei einer existierenden Pille oder Default
            Vector3 spawnPos = new Vector3(0, 5, 0);

            if (pilleContainer.childCount > 0)
            {
                // Wähle zufällige existierende Pille
                int randomIndex = UnityEngine.Random.Range(0, pilleContainer.childCount);
                Transform randomPille = pilleContainer.GetChild(randomIndex);
                spawnPos = randomPille.position;
            }

            // Instantiiere Prefab
            var pilleGO = Instantiate(pillePrefab, pilleContainer);
            pilleGO.name = $"Pille_{pilleCount}";
            pilleGO.transform.position = spawnPos;

            // Füge MovementScript hinzu
            var mover = pilleGO.AddComponent<PilleGameObjectMover>();
            mover.velocity = velocity.normalized * 5f;

            pilleCount++;
        }

        void DeleteRandomPille()
        {
            if (pilleContainer.childCount > 0)
            {
                Destroy(pilleContainer.GetChild(0).gameObject);
                pilleCount--;
            }
        }

        IEnumerator SpawnMultiplePillen(int count)
        {
            for (int i = 0; i < count; i++)
            {
                SpawnPille();
                yield return new WaitForSeconds(0.01f);
            }
        }

        void OnGUI()
        {
            GUI.color = Color.yellow;
            GUI.skin.label.fontSize = 20;
            GUI.Label(new Rect(10, 10, 400, 30), $"Pillen: {pilleCount} | FPS: {(int)(1f / Time.deltaTime)}");
            GUI.Label(new Rect(10, 50, 400, 30), "Space=Spawn | M=Delete | C=Spawn100");
        }
    }
}