using System;
using System.Collections.Generic;
using Alchemy.Inspector;
using Code.PassingObjects;
using UnityEngine;
using Random = UnityEngine.Random;

namespace Code.GameplayServices
{
    // [OnListViewChanged(
    //     OnItemChanged = nameof(OnPassingObjectsPresetsChanged),
    //     OnItemsAdded = nameof(OnPassingObjectsPresetsAdded),
    //     OnItemsRemoved = nameof(OnPassingObjectsPresetsRemoved),
    //     OnSelectedIndicesChanged = nameof(OnPassingObjectsPresetsIndicesChanged),
    //     OnItemIndexChanged = nameof(OnPassingObjectsPresetsIndexChanged))
    // ]
    // public float[] array;
    //
    // void OnPassingObjectsPresetsChanged(int index, PassingObjectsPreset item)
    // {
    //     Debug.Log($"Changed: [{index}] -> {item}");
    // }
    //
    // void OnPassingObjectsPresetsAdded(IEnumerable<int> indices)
    // {
    //     Debug.Log($"Added: [{string.Join(',', indices)}]");
    // }
    //
    // void OnPassingObjectsPresetsRemoved(IEnumerable<int> indices)
    // {
    //     Debug.Log($"Removed: [{string.Join(',', indices)}]");
    // }
    //
    // void OnPassingObjectsPresetsIndicesChanged(IEnumerable<int> indices)
    // {
    //     Debug.Log($"Selected: [{string.Join(',', indices)}]");
    // }
    //
    // void OnPassingObjectsPresetsIndexChanged(int before, int after)
    // {
    //     Debug.Log($"Index Changed: [{before} -> {after}]");
    // }
    public class PassingObjectsManager : MonoBehaviour
    {
        [TabGroup("Spawn")] [SerializeField] private List<Transform> spawnPoints;
        [TabGroup("Spawn")] [SerializeField] private List<GameObject> prefabs;

        [TabGroup("Gameplay")] [SerializeField]
        private float behindPlayerThreshold;

        [TabGroup("Gameplay")] [SerializeField]
        private float obstacleCooldown;

        [OnListViewChanged(
            OnItemChanged = nameof(OnPassingObjectsPresetsChanged),
            OnItemsAdded = nameof(OnPassingObjectsPresetsAdded),
            OnItemsRemoved = nameof(OnPassingObjectsPresetsRemoved),
            OnSelectedIndicesChanged = nameof(OnPassingObjectsPresetsIndicesChanged),
            OnItemIndexChanged = nameof(OnPassingObjectsPresetsIndexChanged))
        ]
        [TabGroup("Gameplay")] [SerializeField]
        private List<PassingObjectsPreset> obstaclesPresets;
        
        void OnPassingObjectsPresetsChanged(int index, PassingObjectsPreset item)
        {
            float totalChance = 0f;
            for (var i = 0; i < obstaclesPresets.Count; i++)
            {
                if (i == index) continue;
                totalChance += obstaclesPresets[i].chance;
            }
            
            if(item.chance > 1 - totalChance) item.chance = 1 - totalChance;
        }
        
        void OnPassingObjectsPresetsAdded(IEnumerable<int> indices)
        {
        }
        
        void OnPassingObjectsPresetsRemoved(IEnumerable<int> indices)
        {
        }
        
        void OnPassingObjectsPresetsIndicesChanged(IEnumerable<int> indices)
        {
        }
        
        void OnPassingObjectsPresetsIndexChanged(int before, int after)
        {
        }
        private List<GameObject> _spawnedObjects = new();
        public float BehindPlayerThreshold => behindPlayerThreshold;
        public static PassingObjectsManager Instance { get; private set; }

        private void Awake()
        {
            Instance = this;
        }

        public void ResetObjects()
        {
            foreach (var spawnedObject in _spawnedObjects)
            {
                Destroy(spawnedObject);
            }
            _spawnedObjects.Clear();
            _timer = 0f;
        }
        public void KillChild(PassingObject child)
        {
            if (!_spawnedObjects.Contains(child.gameObject)) return;

            _spawnedObjects.Remove(child.gameObject);
            Destroy(child.gameObject);
        }

        private float _timer;

        private void Update()
        {
            if(GameplayManager.Instance.OnPause) return;
            
            _timer += Time.deltaTime;

            if (!(_timer > obstacleCooldown)) return;

            _timer = 0f;

            if (prefabs.Count == 0 && obstaclesPresets.Count > 0) return;

            var presetId = Random.Range(0, obstaclesPresets.Count);
            var chance = Random.Range(0,1f);

            _spawnedObjects.Add(
                Instantiate(
                    prefabs[obstaclesPresets[presetId].prefabId1],
                    spawnPoints[0].position,
                    spawnPoints[0].rotation));
            _spawnedObjects.Add(
                Instantiate(
                    prefabs[obstaclesPresets[presetId].prefabId2],
                    spawnPoints[1].position,
                    spawnPoints[1].rotation));
            _spawnedObjects.Add(
                Instantiate(
                    prefabs[obstaclesPresets[presetId].prefabId3],
                    spawnPoints[2].position,
                    spawnPoints[2].rotation));
        }
    }

    [Serializable]
    public class PassingObjectsPreset
    {
        public int prefabId1;
        public int prefabId2;
        public int prefabId3;
        [Range(0,1f)]
        public float chance;
    }
}