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

public enum enemyState
{
    idle,
    walk,
    attack,
    stagger
}

public class Enemy : MonoBehaviour
{
    [Header("State Machine")]
    public enemyState currentState;

    [Header("Health")]
    public FloatValue maxHealth;
    public float health;

    [Header("Stats")]
    public string enemyName;
    public int baseAttack;
    public float moveSpeed;

    [Header("Player Stats")]
    public int xpGain;
    public int levelUp;
    public GameObject playerLevelUp;
    //public int level = DBManager.level;

    [Header("Effects")]
    public GameObject deathEffect;
    private float deathEffectDelay = 1f;

    private void Awake()
    {
        health = maxHealth.InitialValue;
    }

    void TakeDamage(float damage)
    {
        health -= damage;
        if(health <= 0)
        {
            DeathEffect();
            this.gameObject.SetActive(false);
        }
    }

    private void DeathEffect()
    {
        if(deathEffect != null)
        {
            GameObject effect = Instantiate(deathEffect, transform.position, Quaternion.identity);
            Destroy(effect, deathEffectDelay);
        }
    }

    public void Knock(Rigidbody2D myrigidbody, float knockTime, float damage)
    {
        xpGain += DBManager.xp + 1;
        if(xpGain >= DBManager.level * DBManager.level * 100)
        {
            playerLevelUp.gameObject.SetActive(true);
            Debug.Log("You have Leveled Up");
            StartCoroutine(LevelUpCO());
        }
        StartCoroutine(XPAdd());
        Debug.Log("XP has Been Added");


        StartCoroutine(KnockCo(myrigidbody, knockTime));
        TakeDamage(damage);
    }

    IEnumerator KnockCo(Rigidbody2D myrigidbody, float knockTime)
    {
        if (myrigidbody != null)
        {
            yield return new WaitForSeconds(knockTime);
            myrigidbody.velocity = Vector2.zero;
            currentState = enemyState.idle;
            myrigidbody.velocity = Vector2.zero;
        }
    }

    IEnumerator XPAdd()
    {
        WWWForm form = new WWWForm();
        form.AddField("username", DBManager.username);
        form.AddField("xp", xpGain);
        //form.AddField("level", levelUp);
        WWW www = new WWW(DBManager.GetBaseURL() + "xpPlayer.php", form);
        yield return www;
        Debug.Log(www.text);
    }

    private IEnumerator LevelUpCO()
    {
        yield return new WaitForSeconds(3);
        playerLevelUp.gameObject.SetActive(false);
    }
}