using System;
using UnityEngine;
using UnityEngine.AI;
using UnityEngine.EventSystems;

public class PlayerMovement : MonoBehaviour
{
    [Header("Components")]
    [SerializeField] private Player player;
    [SerializeField] private NavMeshAgent agent;

    private float lookRotationSpeed = 8f;
    private bool isMoving = false;

    private bool prepareEvent = false;
    private Action onDestinationReached;

    private Animator animator => player.Animator;

    public void MoveTo(Vector3 point, Action action = null)
    {
        agent.destination = point;
        onDestinationReached = action;
    }

    public void MoveToBlock(Vector3 point, Action action = null)
    {
        InteractionManager.Instance.AddBlockReason("Moving", false);
        MoveTo(point, () =>
        {
            action?.Invoke();
            InteractionManager.Instance.RemoveBlockReason("Moving");
        });
        
    }

    private void Update()
    {
        isMoving = !agent.pathPending && agent.remainingDistance > agent.stoppingDistance;

        if (isMoving)
        {
            prepareEvent = true;
            FaceTarget();
        }
        else if (prepareEvent)
        {
            prepareEvent = false;
            onDestinationReached?.Invoke();
        }

        SetAnimations();
    }

    private void FaceTarget()
    {
        if (agent.velocity == Vector3.zero) return;

        Vector3 direction = (agent.destination - transform.position).normalized;
        Quaternion lookRotation = Quaternion.LookRotation(new Vector3(direction.x, 0, direction.z));
        transform.rotation = Quaternion.Slerp(transform.rotation, lookRotation, Time.deltaTime * lookRotationSpeed);
    }

    public void StopMovement()
    {
        agent.destination = transform.position;
    }

    private void SetAnimations()
    {
        if (!animator) return;

        animator.SetBool("Walking", agent.velocity != Vector3.zero);
    }
}