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

public class SkeletonController : MonoBehaviour
{
    [SerializeField] private int hp;
    [SerializeField] private int damage;
    [SerializeField] private GameObject player;
    [SerializeField] private float speed;
    [SerializeField] private Transform rayPosition;
    [SerializeField] private float EndAttack;
    [SerializeField] private Sprite DeathSprite;
    [SerializeField] private float DistanceToPlayer;

    private SpriteRenderer spriteRenderer;
    private float StartPos;
    private float EndPos;
    private Animator animator;
    private Rigidbody2D rb2d;
    private float StartAttack;
    private float DistanceAttackPlayer = 2f;
    private bool isDeath = false;
    private bool isAttack = false;
    private int DeathCount = 0;
    private new BoxCollider2D collider2D;
    void Start()
    {
        rb2d = GetComponent<Rigidbody2D>();
        animator = GetComponent<Animator>();
        spriteRenderer = GetComponent<SpriteRenderer>();
        collider2D = GetComponent<BoxCollider2D>();
        StartPos = transform.position.x;
        EndPos = transform.position.x;
    }

    void Update()
    {
        if(hp <= 0){
            if(isDeath == false){
                if(DeathCount == 0){
                    animator.SetInteger("state",4);
                    DeathCount++;
                }
            }
        }
        else{
            RaycastHit2D hit = Physics2D.Raycast(rayPosition.position,Vector2.right,2f);
            if(PlayerController.isDeath == false){
                if(Vector3.Distance(transform.position, player.transform.position) > DistanceToPlayer){
                    animator.SetInteger("state",1);
                }
                else{
                    if(isAttack == false){
                        animator.SetInteger("state",2);

                        Vector2 vector2Saw = new Vector2(player.transform.position.x, transform.position.y);

                        if(Vector3.Distance(transform.position, player.transform.position) > DistanceAttackPlayer){
                            transform.position = Vector3.MoveTowards(transform.position, vector2Saw, speed * Time.deltaTime);
                        }

                        StartPos = transform.position.x;

                        if (StartPos < EndPos) {
                            animator.SetInteger("state",5);
                            hit = Physics2D.Raycast(rayPosition.position,Vector2.right,2f);
                            rayPosition.localRotation = Quaternion.Euler(0,0,0);
                            Debug.DrawRay(rayPosition.position,Vector3.right,Color.green,1.5f);
                            EndPos = StartPos;
                        }
                        else{
                            animator.SetInteger("state",2);
                            rayPosition.localRotation = Quaternion.Euler(0,180f,0);
                            hit = Physics2D.Raycast(rayPosition.position,Vector2.left,2f);
                            Debug.DrawRay(rayPosition.position,Vector3.left,Color.green,1.5f);
                            EndPos = StartPos;
                        }
                    }
                    if(Vector3.Distance(transform.position, player.transform.position) <= DistanceAttackPlayer && PlayerController.isDeath == false){
                        isAttack = true;
                        if(StartAttack <= 0){
                            if (transform.position.x > player.transform.position.x) {
                                transform.rotation = Quaternion.Euler(0,180f,0);
                                hit = Physics2D.Raycast(rayPosition.position,Vector2.left,2f);

                                Debug.DrawRay(rayPosition.position,Vector3.left,Color.green,1.5f);
                            }
                            else{
                                transform.rotation = Quaternion.Euler(0,0,0);
                                hit = Physics2D.Raycast(rayPosition.position,Vector2.right,2f);
                                rayPosition.localRotation = Quaternion.Euler(0,180f,0);
                                rayPosition.localRotation = Quaternion.Euler(0,0,0);
                                Debug.DrawRay(rayPosition.position,Vector3.right,Color.green,1.5f);
                            }
                            animator.SetInteger("state",3);
                            hit.collider.GetComponent<PlayerController>().takeDamage(damage);
                            StartAttack = EndAttack;
                            Debug.Log(hit.collider.tag);

                        }
                        else{
                            if(AnimationIsPlaying("Attack") == true){
                                animator.SetInteger("state",1);
                            }
                            StartAttack -= Time.deltaTime;
                        }
                    }
                    else{
                        isAttack = false;
                    }
                }
            }
            else{
                animator.SetInteger("state",1);
            }
        }

        Debug.DrawRay(transform.position,Vector3.right,Color.green,1.5f);
    }

    public void takeDamage(int damage){
        hp -= damage;
    }

    public bool AnimationIsPlaying(string animationName){
        var animatorStateInfo = animator.GetCurrentAnimatorStateInfo(0);
        if(animatorStateInfo.IsName(animationName)){
            return true;
        }
        return false;
    }

    public void Death(){
        animator.enabled = false;
        spriteRenderer.sprite = DeathSprite;
        rb2d.gravityScale = 0;
        collider2D.isTrigger = true;
        spriteRenderer.sortingOrder = 0;
    }
}