using System.Collections;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
    public float moveSpeed = 5f;  // À̵¿ ¼Óµµ
    public float dashDistance = 3f;  // ´ë½Ã °Å¸®
    public float dashCooldown = 1f;  // ´ë½Ã ÄðŸÀÓ
    public float dashTime = 0.5f;
    private bool canDash = true;  // ´ë½Ã °¡´É ¿©ºÎ
    private Vector2 moveDirection = Vector2.zero;  // ÇöÀç À̵¿ ¹æÇâ
    private bool isWalking = false;  // À̵¿ ÁßÀÎÁö ¿©ºÎ
    private float dashValue;
    Animator animator;
    SpriteRenderer spriteRenderer;

    private float idleState = 0f; // 0: ¿À¸¥ÂÊ, 0.333: ¿ÞÂÊ, 0.666: À§, 1: ¾Æ·¡

    void Start()
    {
        spriteRenderer = GetComponentInChildren<SpriteRenderer>();
        animator = GetComponentInChildren<Animator>();

        // Å° À̺¥Æ®¿Í ½ºÇÁ¶óÀÌÆ® ¹× ȸÀü ó¸® ¿¬°á
        PlayManager.Instance.keySdown += () => SetMovement(Vector2.down, 1f / 3f);  // ¾Æ·¡
        PlayManager.Instance.keyWdown += () => SetMovement(Vector2.up, 2f / 3f);   // ˤ
        PlayManager.Instance.keyAdown += () => SetMovement(Vector2.left, 1f);  // ¿ÞÂÊ
        PlayManager.Instance.keyDdown += () => SetMovement(Vector2.right, 1f); // ¿À¸¥ÂÊ

        // ´ë½Ã ±â´É ¿¬°á
        PlayManager.Instance.keySpace += Dash;
    }

    void Update()
    {
        HandleMovement(); // À̵¿ ó¸®
    }

    // À̵¿ ó¸®
    void HandleMovement()
    {
        if (!canDash) return;
        moveDirection = Vector2.zero;  // ¸Å ÇÁ·¹ÀÓ ÃʱâÈ­

        // Å° »óŸ¦ Á÷Á¢ È®ÀÎÇÏ°í ¹æÇâ °áÁ¤
        if (Input.GetKey(KeyCode.A)) moveDirection += Vector2.left;
        if (Input.GetKey(KeyCode.D)) moveDirection += Vector2.right;
        if (Input.GetKey(KeyCode.W)) moveDirection += Vector2.up;
        if (Input.GetKey(KeyCode.S)) moveDirection += Vector2.down;

        // À̵¿ ¿©ºÎ ÆǺ°
        isWalking = moveDirection != Vector2.zero;
        animator.SetBool("isWalking", isWalking);

        // À̵¿ ¹æÇâÀÌ ÀÖÀ» ¶§¸¸ À̵¿
        if (isWalking)
        {
            transform.position += (Vector3)(moveDirection.normalized * moveSpeed * Time.deltaTime);
            // ¾Ö´Ï¸ÞÀÌ¼Ç À̵¿ ¹æÇâ ¼³Á¤
            animator.SetFloat("moveX", Mathf.Abs(moveDirection.x));
            animator.SetFloat("moveY", moveDirection.y);

            // ȸÀü ó¸®
            if (Mathf.Abs(moveDirection.x) > 0)
            {
                if (moveDirection.x < 0 && transform.GetChild(0).localEulerAngles.y != 180)
                {
                    transform.GetChild(0).localEulerAngles = new Vector3(0, 180, 0);
                }
                else if (moveDirection.x > 0 && transform.GetChild(0).localEulerAngles.y != 0)
                {
                    transform.GetChild(0).localEulerAngles = new Vector3(0, 0, 0);
                }
            }
        }
        else
        {
            // À̵¿ÇÏÁö ¾ÊÀ¸¸é Idle »óŸ¦ ¼³Á¤
            animator.SetFloat("moveX", 0);
            animator.SetFloat("moveY", 0);
            animator.SetFloat("idleState", idleState);
        }
    }

    // ´ë½Ã ó¸®
    void Dash()
    {
        if (canDash)
        {
            canDash = false;
            isWalking = false;
            animator.SetTrigger("DodgeTrigger");

            StartCoroutine(DashCoroutine()); // ´ë½Ã ½ÃÀÛ
        }
    }

    IEnumerator DashCoroutine()
    {
        Vector3 startPosition = transform.position;
        Vector3 targetPosition = startPosition + (Vector3)(moveDirection.normalized * dashDistance);
        float elapsedTime = 0f;

        while (elapsedTime < dashTime)
        {
            transform.position = Vector3.Lerp(startPosition, targetPosition, elapsedTime / dashTime);
            elapsedTime += Time.deltaTime;
            yield return null;
        }

        transform.position = targetPosition;
        canDash = true;
    }
    // À̵¿ ¹æÇâ°ú ½ºÇÁ¶óÀÌÆ®, ȸÀü ó¸®
    void SetMovement(Vector2 direction, float idleStateValue)
    {
        moveDirection = direction;
        idleState = idleStateValue;
    }
}