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

public class PlayerController : MonoBehaviour
{
    public ParticleSystem dust;

    public float speed;
    public float jumpForse;

    private Rigidbody2D rb;

    private bool facingRight = true;

    private bool isGrounded;
    public Transform groundCheck;
    public float checkRadius;
    public LayerMask whatIsGround;

    private int extraJumps;
    public int extraJumpsValue;

    public int maxHealth = 100;
    public int currentHealth;

    public HealthBar healthBar;

    Animator anim;

    public GameObject eatObject;

    public float endTime;

    private void Start()
    {
        extraJumps = extraJumpsValue;
        rb = GetComponent<Rigidbody2D>();
        anim = GetComponent<Animator>();
        currentHealth = PlayerPrefs.GetInt("life");
        healthBar.SetHealth(currentHealth);
    }

    private void OnTriggerEnter2D(Collider2D collision)
    {

        if (this.CompareTag("Player") && collision.CompareTag("Eat"))
        {
            HealHelth(5);
            EatObject(collision);
            Destroy(collision.gameObject);
        }

        if (this.CompareTag("Player") && collision.CompareTag("Damage"))
        {
            TakeDamage(5);
        }
    }

    private void FixedUpdate()
    {
        isGrounded = Physics2D.OverlapCircle(groundCheck.position, checkRadius, whatIsGround);

        rb.velocity = new Vector2(Input.GetAxis("Horizontal") * speed, rb.velocity.y);

        if (facingRight == false && Input.GetAxis("Horizontal") > 0)
        {
            Flip();
        }
        else if (facingRight == true && Input.GetAxis("Horizontal") < 0)
        {
            Flip();
        }


    }

    void Flip()
    {
        CreateDust();
        facingRight = !facingRight;
        Vector3 Scaler = transform.localScale;
        Scaler.x *= -1;
        transform.localScale = Scaler;
    }

    private void Update()
    {
        if (Input.GetAxis("Horizontal") == 0)
        {
            anim.SetInteger("Anim", 0);


        } else
        {
            anim.SetInteger("Anim", 1);

        }
        if (isGrounded == true)
        {
            extraJumps = extraJumpsValue;
        }
        if(Input.GetKeyDown(KeyCode.Space) && extraJumps > 0)
        {
            rb.velocity = Vector2.up * jumpForse;
            extraJumps--;
            anim.SetInteger("Anim", 2);
            CreateDust();
        }
        else if (Input.GetKeyDown(KeyCode.Space) && extraJumps == 0 && isGrounded == true)
        {
            rb.velocity = Vector2.up * jumpForse;
        }
        if (Input.GetKeyDown(KeyCode.Space))
        {

        }
    }

    void CreateDust()
    {
        dust.Play();
    }

    void TakeDamage(int damage)
    {
        currentHealth -= damage;
        PlayerPrefs.SetInt("life", currentHealth);
        healthBar.SetHealth(currentHealth);
    }

    void HealHelth(int heal)
    {
        int nowhelth = currentHealth + heal;

        if (nowhelth > maxHealth)
        {
            healthBar.SetHealth(maxHealth);
            PlayerPrefs.SetInt("life", maxHealth);

        }
        else
        {
            currentHealth += heal;
            PlayerPrefs.SetInt("life", currentHealth);
            healthBar.SetHealth(currentHealth);
        }
    }

    void EatObject(Collider2D collision)
    {
        GameObject tempObject = Instantiate(eatObject, collision.gameObject.transform.position, Quaternion.identity);
        Destroy(tempObject, endTime);
    }
}