using System;
using UnityEngine;
using UnityEngine.AI;

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

    private Vector3 target;

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

    private bool prepareEvent = false;
    private Action onDestinationReached;

    private Animator animator => player.Animator;

    public void MoveTo(Vector3 point, Action action = null)
    {
        if (agent == null) return;

        target = point;
        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()
    {
        if (onInteraction) return;

        isMoving = !agent.pathPending && agent.remainingDistance > agent.stoppingDistance;

        if (isMoving)
        {
            prepareEvent = true;
            FaceTarget();
        }

        SetAnimations();

        if (prepareEvent && Vector3.Distance(transform.position, target) <= 1.5f)
        {
            prepareEvent = false;
            onDestinationReached?.Invoke();
        }

    }

    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;
        isMoving = false;
        animator.SetBool("Walking", false);
    }

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

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

    private void ActivateAgent(bool activate)
    {
        agent.enabled = activate;
        onInteraction = !activate;  
    }

    public void CancelInteraction()
    {
        onDestinationReached = null;
    }



    public void ActivateAgent() => ActivateAgent(true);
    public void DeactivateAgent() => ActivateAgent(false);

    public void OnInteraction(Vector3 position, Vector3 rotation)
    {
        onInteraction = true;
        agent.Warp(position);
        transform.rotation = Quaternion.Euler(rotation);
    }

    public void OutInteraction(Vector3 position)
    {
        agent.Warp(position);
        onInteraction = false;
    }
}