using System.Collections.Generic;
using BlueWater.Tycoons;
using Sirenix.OdinInspector;
using UnityEngine;

namespace BlueWater.Uis
{
    public class PlayerHealthPointUi : MonoBehaviour
    {
        [SerializeField, Required]
        private Transform _healthPointLayout;
        
        [SerializeField, Required]
        private HealthPoint _healthPointPrefab;
        
        [SerializeField, Range(1, 10)]
        private int _maxHeartCount = 2;
        
        [SerializeField]
        private List<HealthPoint> _healthPoints = new();

        private int _maxHealth;

        private void Awake()
        {
            EventManager.OnMaxHealthChanged += SetMaxHealthPoint;
            EventManager.OnHealthChanged += SetCurrentHealthPoint;
            
            InitializeHealthPoint();
        }
        
        private void OnDestroy()
        {
            EventManager.OnMaxHealthChanged -= SetMaxHealthPoint;
            EventManager.OnHealthChanged -= SetCurrentHealthPoint;
        }

        [Button("컴포넌트 초기화")]
        private void InitializeComponents()
        {
            _healthPointLayout = transform.Find("HealthPointLayout");
        }

        private void InitializeHealthPoint()
        {
            foreach (Transform element in _healthPointLayout)
            {
                Destroy(element.gameObject);
            }
            
            _healthPoints = new List<HealthPoint>(_maxHeartCount);

            for (var i = 0; i < _maxHeartCount; i++)
            {
                var newHeart = Instantiate(_healthPointPrefab, _healthPointLayout);
                _healthPoints.Add(newHeart);
            }
        }

        public void SetMaxHealthPoint(int previousMaxHealthPoint, int changedMaxHealthPoint)
        {
            _maxHealth = changedMaxHealthPoint;
            var addedMaxHealthPoint = _maxHealth - previousMaxHealthPoint;
            // _maxHeartCount = Mathf.CeilToInt(changedMaxHealthPoint / 2);
            InitializeHealthPoint();
            TycoonManager.Instance.TycoonStatus.CurrentPlayerHealth += addedMaxHealthPoint;
        }

        public void SetCurrentHealthPoint(int changedHealthPoint)
        {
            var fullHearts = changedHealthPoint / 2;
            var existHalfHeart = changedHealthPoint % 2 != 0;
            var activeHeart = Mathf.CeilToInt(_maxHealth / 2f);

            for (var i = 0; i < _healthPoints.Count; i++)
            {
                if (i >= activeHeart)
                {
                    _healthPoints[i].Lock();
                    continue;
                }
                
                if (i < fullHearts)
                {
                    _healthPoints[i].SetHeart(HealthHeart.Full);
                }
                else if (i == fullHearts && existHalfHeart)
                {
                    _healthPoints[i].SetHeart(HealthHeart.Half);
                }
                else
                {
                    _healthPoints[i].SetHeart(HealthHeart.Empty);
                }
            }
        }
    }
}