using CSNetwork.Protocols;
using CSNetwork.Protocols.RPCData;
using System.Data;
using System.Text;
using TMPro;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.UI;
using UnityEngine.Windows;

public class CharacterCtrl : MonoBehaviour
{
    [SerializeField] private TextMeshPro txtName;
    [SerializeField] private CharacterController controller;
    [SerializeField] private Animator animator;

    [SerializeField] private Joystick joystick;
    [SerializeField] private Button btnJump;
    [SerializeField] private Button btnRun;

    PlayerStateMachine playerStateMachine;
    PlayerMoveState moveState;

    float playerSpeed = 5.0f;
    float jumpHeight = 1.5f;
    float gravityValue = -9.81f;
    StateAnim stateAnim = StateAnim.Idle;
    Vector3 playerVelocity;
    [SerializeField] bool isGrounded = false;
    bool isRun = false;

    private void Awake()
    {
        moveState = new PlayerMoveState(this);
        playerStateMachine = new PlayerStateMachine();
    }

    private void Start()
    {
        playerStateMachine.InitState(moveState);

        //btnJump.onClick.AddListener(HandleJump);
    }

    private void HandleJump()
    {
        if (isGrounded)
        {
            playerVelocity.y = Mathf.Sqrt(jumpHeight * -2f * gravityValue);
            SetAnimJump();
        }
    }

    public void SetStatusRun(bool value)
    {
        if (!isGrounded)
        {
            Debug.LogError("Player not in ground");
            return;
        }
        isRun = value;
    }

    public void InitCharacter(RoleInfo role)
    {
        string roleName = "(Error decoding name)";
        if (role.name != null && role.name.ByteArray != null)
        {
            // Be careful with encoding, assume UTF8 is correct
            roleName = Encoding.UTF8.GetString(
                role.name.ByteArray,
                0,
                role.name.Length
            );
        }
        Vector3 pos = new Vector3(role.posx, role.posy, role.posz);
        if(txtName != null)
        {
            txtName.text = roleName;
        }
        transform.position = pos;
        Debug.LogError("Pos Character = " + pos);
    }

    private void Update()
    {
        playerStateMachine.UpdateState();
    }
    public void HandleMovement()
    {
        isGrounded = controller.isGrounded;

        if (UnityEngine.Input.GetKeyDown(KeyCode.LeftShift))
        {
            SetStatusRun(true);
        }
        if (UnityEngine.Input.GetKeyUp(KeyCode.LeftShift))
        {
            SetStatusRun(false);
        }
        if (UnityEngine.Input.GetKeyDown(KeyCode.Space))
        {
            HandleJump();
        }


        if (isGrounded && playerVelocity.y < 0)
        {
            playerVelocity.y = 0f;
        }

        float x = joystick.Horizontal;
        float z = joystick.Vertical;

        Vector3 move = new Vector3(x, 0, z);
        move = Vector3.ClampMagnitude(move, 1f);

        if (move != Vector3.zero)
        {
            transform.forward = move;
            if (isRun)
            {
                SetAnimRun();
            }
            else
            {
                SetAnimWalk();
            }
        }
        else
        {
            SetAnimIdle();
        }

        playerVelocity.y += gravityValue * Time.deltaTime;
        Vector3 finalMove = (move * playerSpeed) + (playerVelocity.y * Vector3.up);
        controller.Move(finalMove * Time.deltaTime);
    }
    private void SetAnimIdle()
    {
        if(stateAnim == StateAnim.Idle || !isGrounded)
        {
            return;
        }
        stateAnim = StateAnim.Idle;
        animator.SetTrigger("Idle");
    }

    private void SetAnimRun()
    {
        if (stateAnim == StateAnim.Run || !isGrounded)
        {
            return;
        }
        stateAnim = StateAnim.Run;
        animator.SetTrigger("Run");
    }

    private void SetAnimWalk()
    {
        if (stateAnim == StateAnim.Walk || !isGrounded)
        {
            return;
        }
        stateAnim = StateAnim.Walk;
        animator.SetTrigger("Walk");
    }

    private void SetAnimJump()
    {
        if (stateAnim == StateAnim.Jump)
        {
            return;
        }
        stateAnim = StateAnim.Jump;
        animator.SetTrigger("Idle");
    }
}

public enum StateAnim
{
    Idle = 1,
    Walk = 2,
    Run = 3,
    Jump = 4
}