using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.UI;

public class Enemy : MonoBehaviour
{
    [SerializeField] private Image enemyStepIcon;
    [SerializeField] private Text enemyStepIconText;

    [SerializeField] private List<Sprite> allStepImageIcons = new List<Sprite>();
    public EnemyConfig enemyConfig;
    [SerializeField] private Text enemyName;
    [SerializeField] private Text enemyMaxHp;
    [SerializeField] private Text enemyHp;
    [SerializeField] private Slider enemyHealthbar;
    [SerializeField] private Image marker;
    [SerializeField] private Button buttonInEnemy;
    [SerializeField] public int currentPosition;

    [Header("For checking. dont touch this")]
    [SerializeField] int phaseAttack = 0;
    public List<UnityEvent> attackLoop = new List<UnityEvent>();

    [SerializeField] private int hp;
    [SerializeField] private int localarmor;

    [SerializeField] private Image armorIcon;
    [SerializeField] private Text armorText;

    private void Start()
    {
        NewInformation();
        UpdateNextStepIconAndText();
    }

    public void onClick()
    {
        DeckManager.main.ActionInEnemy(this);
    }

    public void ChangeHp(int damage)
    {
        if (damage < 0)
        {
            hp -= damage;
        }
        else 
        {
            localarmor -= damage;
            if (localarmor < 0)
            {
                hp -= Mathf.Abs(localarmor);
                localarmor = 0;
            }
        }
        

        if (hp <= 0)
        {
            Death();
        }
        else if (hp > enemyConfig.enemyCharacteristics.maxHp)
        {
            hp = enemyConfig.enemyCharacteristics.maxHp;
        }

        enemyHp.text = hp.ToString();
        enemyHealthbar.value = hp;
        ReupdateArmorIconAndText();
    }

    public void AddArmor(int value)
    {
        localarmor += value;
    }

    public void NewInformation()
    {   
        Image _image = buttonInEnemy.image;
        _image.sprite = enemyConfig.enemyCharacteristics.sprite;
        var _character = enemyConfig.enemyCharacteristics;
        enemyName.text = _character.name;
        enemyMaxHp.text = _character.maxHp.ToString();
        enemyHp.text = _character.maxHp.ToString();
        enemyHealthbar.maxValue = _character.maxHp;
        enemyHealthbar.value = _character.maxHp;
        hp = _character.maxHp;

        localarmor = _character.armor;
        ReupdateArmorIconAndText();
    }

    public void ReupdateArmorIconAndText()
    {
        if (localarmor <= 0)
        {
            armorIcon.enabled = false;

            armorText.text = "";
        }
        else
        {
            armorIcon.enabled = true;
            armorText.text = localarmor.ToString();
        }
    }

    public void Death()
    {
        Image _image = buttonInEnemy.image;
        
        _image.sprite = null;
        Session.main.EnemyDeath(gameObject);
       
    }

    public void UpdateNextStepIconAndText()
    {
        int _phase = phaseAttack % attackLoop.Count;
        //Пока всего две фазы атаки пойдет, но надо переписать
       
        //А вот это тем более
        switch(attackLoop[_phase].GetPersistentMethodName(0))
        {
            case "Attack":
                enemyStepIcon.sprite = allStepImageIcons[0];
                enemyStepIconText.text = enemyConfig.enemyCharacteristics.damage.ToString();
                break;
            case "SelfHealing":
                enemyStepIcon.sprite = allStepImageIcons[1];
                enemyStepIconText.text = enemyConfig.enemyCharacteristics.selfHealing.ToString();
                break;
            case "AllyHealing":
                enemyStepIcon.sprite = allStepImageIcons[2];
                enemyStepIconText.text = enemyConfig.enemyCharacteristics.allyHealing.ToString();
                break;
            case "AllHealing":
                enemyStepIcon.sprite = allStepImageIcons[3];
                enemyStepIconText.text = enemyConfig.enemyCharacteristics.allHealing.ToString();
                break;
        }
    }

    public void Turn()
    {
        int _phase = phaseAttack % attackLoop.Count;
        attackLoop[_phase]?.Invoke();
        phaseAttack++;
        UpdateNextStepIconAndText();
    }


    public int CheckHp()
    {
        return hp;
    }

    public void OnMarker()
    {
        marker.enabled = true;
    }

    public void OffMarker()
    {
        marker.enabled = false;
    }

    public bool CheckMarker()
    {
        return marker.enabled;
    }
}