using PashaBibko.Pacore.Attributes;
using System.Collections.Generic;
using UnityEngine;

namespace Fruitomation
{
    public class FruitSpawner : MonoBehaviour
    {
        [Header("Settings")]
        [SerializeField] private int MaxSpawned;
        [SerializeField] private float MinSpawnTime;
        [SerializeField] private float MaxSpawnTime;
        
        [Header("References")]
        [SerializeField] private Transform FruitSpawnParent;
        [SerializeField] private GameObject FruitPrefab;
        [SerializeField] private Canvas GameCanvas;
        
        [Header("Read only")]
        [SerializeField, InspectorReadOnly] private List<FruitBehaviour> ActiveFruits;

        private float TimeUntilNextSpawn;
        
        private void Update()
        {
            if (ActiveFruits.Count <= MaxSpawned && GameStateController.Is(GameState.Simulation))
            {
                TimeUntilNextSpawn -= Time.deltaTime;
                
                if (TimeUntilNextSpawn <= 0f)
                {
                    TimeUntilNextSpawn = Random.Range(MinSpawnTime, MaxSpawnTime);
                    SpawnFruit();
                }
            }
        }

        private void SpawnFruit()
        {
            GameObject go = Instantiate(FruitPrefab, FruitSpawnParent);
            FruitBehaviour behaviour = go.GetComponent<FruitBehaviour>();
            Debug.Assert(behaviour != null, "Could not find FruitBehaviour");

            ActiveFruits.Add(behaviour);
            behaviour.InitFruitBehaviour
            (
                GameCanvas, this
            );
        }

        public void RemoveFruit(FruitBehaviour fruit) => ActiveFruits.Remove(fruit);
    }
}