using System.Collections;
using System.Collections.Generic;
using TreeEditor;
using UnityEngine;
using UnityEngine.InputSystem;

public class PlayerController : MonoBehaviour
{
    [SerializeField] private Rigidbody2D rbody;
    private Vector2 moveInput;
    [SerializeField] private float speed = 3.0f;   // 이동 속도
    [SerializeField] private float dashspeed = 5.4f;
    [SerializeField] private float jumpForce = 5.0f;   // 점프력

    private float axisH = 0.0f;   // 좌우 입력 값 저장
    bool isDash = false;   // 대시 플래그
    bool goJump = false;   // 점프 개시 플래그
    bool isDead = false;   // 사망 플래그
    bool onGround = false;   // 지면에 서 있는 플래그
    public LayerMask groundLayer;   // 착지할 수 있는 레이어

    private Animator animator;
    private PlayerAttacks playerAttacks;

    /*[SerializeField] private GameObject nano;
    [SerializeField] private GameObject tera;
    bool isnano = false;
    bool istera = false;*/

    void Start()
    {
        //Rigidbody2D 가져오기
        rbody = GetComponentInChildren<Rigidbody2D>();
        //Animator 가져오기
        animator = GetComponentInChildren<Animator>();
        playerAttacks = GetComponent<PlayerAttacks>();
        /*nano = GameObject.Find("player_nano");
        tera = GameObject.Find("player_tera");

        nano.SetActive(true);
        isnano = true;
        tera.SetActive(false);*/
    }
    void OnMove(InputValue value)
    {
        // Vector2 값 중 x축(좌우) 값만 가져옴
        Vector2 inputVector = value.Get<Vector2>();
        axisH = inputVector.x;
    }
    void OnDash(InputValue value)
    {
        isDash = value.isPressed;

        if (isDash) Debug.Log("대시 중...");
        else Debug.Log("대시 중단");
    }
    public void OnJump(InputValue value)
    {
        // 버튼이 눌린 순간(isPressed)이고 지면 위라면 점프 예약
        if (value.isPressed && onGround)
        {
            goJump = true;
            animator.SetBool("jump", true);
            Debug.Log(" 점프 버튼 눌림! ");
        }
    }

    public void OnSAtk(InputValue value)
    {
        Debug.Log(" s 버튼 눌림! ");
        if (value.isPressed && !playerAttacks.weaponInfos[0].isUse)
        {
            playerAttacks.weaponInfos[0].isUse = true;
            StartCoroutine(playerAttacks.ableAtk(0));
            
        }
    }

    public void OnAAtk(InputValue value)
    {
        Debug.Log(" a 버튼 눌림! ");
        if (value.isPressed && !playerAttacks.weaponInfos[1].isUse)
        {
            playerAttacks.weaponInfos[1].isUse = true;
            StartCoroutine(playerAttacks.ableAtk(1));
            
        }
    }

    /*public void OnTagKey(InputValue value)
    {

        if (!value.isPressed) return;

        Debug.Log(" Z 버튼 눌림! ");

        if (isnano)
        {
            tera.SetActive(true);
            nano.SetActive(false);
            isnano = false;
            istera = true;
        }

        else if (istera)
        {
            tera.SetActive(false);
            nano.SetActive(true);
            isnano = true;
            istera = false;
        }

    }*/

    void Update()
    {
        if (isDead) return;

        bool isMoving = axisH != 0;
        // 지면 상태 확인
        animator.SetBool("jump", !onGround);

        animator.SetBool("Dash", isDash);
        animator.SetBool("Move", isMoving);

        // 플래그 초기화
        if (Keyboard.current.leftShiftKey.wasReleasedThisFrame) isDash = false;
        //if (Keyboard.current.sKey.wasReleasedThisFrame) issAtk = false;
        //if (Keyboard.current.aKey.wasReleasedThisFrame) isaAtk = false;

        // 방향 조절
        if (isMoving)
        {
            float direction = axisH > 0 ? 1 : -1;
            transform.localScale = new Vector2(direction, 1);
        }
        
        else animator.SetBool("Dash", false);
    }

    private void FixedUpdate()
    {
        onGround = Physics2D.Linecast(transform.position,
                                      transform.position - (transform.up * 0.1f),
                                      groundLayer);

        if (isDead) return;

        // 공격중인지 확인
        if (playerAttacks.IsAnyWeaponInUse)
        {
            rbody.linearVelocity = new Vector2(0, rbody.linearVelocity.y); // 정지
            return;
        }

        float currentSpeed = (isDash && onGround) ? dashspeed : speed;
        rbody.linearVelocity = new Vector2(axisH * currentSpeed, rbody.linearVelocity.y);

        if (goJump)
        {
            Debug.Log("점프!");
            rbody.AddForce(Vector2.up * jumpForce, ForceMode2D.Impulse);
            goJump = false;
        }
    }


    private void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.CompareTag("Goal"))
        {
            GameStop();
        }

        else if (collision.CompareTag("Dead"))
        {
            GameOver();
        }
    }

    public void GameStop()
    {
        rbody.linearVelocity = Vector2.zero;
    }

    public void GameOver()
    {
        isDead = true;
        animator.SetBool("Move", false);
        GameStop();
    }
}