using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;

namespace Moloch
{
    public class NMAgentManager
    {
        private GameObject m_Waypoint;
        [HideInInspector]
        public NavMeshAgent m_Agent;
        public NavMeshPath m_CurrentPath;
        private MeshRenderer m_floorBounds;
        private GameObject m_NPC;

        public NMAgentManager(NavMeshAgent agent, GameObject NPC, MeshRenderer floor)
        {
            this.m_Agent = agent;
            this.m_NPC = NPC;
            m_floorBounds = floor;
        }

        public void RandomWalk()
        {
            SetRandomDestination();
        }

        public bool HasReachedWaypoint()
        {
            if (m_Agent.remainingDistance <= 0.75f && !m_Agent.pathPending)
            {
                m_Agent.velocity = Vector3.zero;
                return true;
            }
            else
            {
                return false;
            }
        }

        public void SetSpeed(float maxSpeed)
        {
            m_Agent.speed = maxSpeed;
        }

        public void SetAcceleration(float maxAcc)
        {
            m_Agent.acceleration = maxAcc;
        }

        public float GetSpeed()
        {
            return m_Agent.speed;
        }

        public void MoveToWaypoint()
        {
            if (m_Waypoint != null)
            {
                m_Agent.SetDestination(m_Waypoint.transform.position);
                StartMoving();
            }
        }

        public void StopMoving()
        {
            m_Agent.isStopped = true;
        }

        public void StartMoving()
        {
            m_Agent.isStopped = false;
        }

        public void SetWaypoint(GameObject waypoint)
        {
            m_Waypoint = waypoint;
        }

        public void SetDestination(Vector3 position)
        {
            m_Agent.SetDestination(position);
        }

        public GameObject GetWaypoint()
        {
            return m_Waypoint;
        }

        private void SetRandomDestination()
        {
            float rx = Random.Range(m_floorBounds.bounds.min.x, m_floorBounds.bounds.max.z);
            float rz = Random.Range(m_floorBounds.bounds.min.z, m_floorBounds.bounds.max.x);
            Vector3 targetPosition = new Vector3(rx, m_NPC.transform.position.y, rz);
            m_Agent.SetDestination(new Vector3(rx, m_NPC.transform.position.y, rz));
            m_CurrentPath = m_Agent.path; 
        }

        public void RotationOff()
        {
            //m_Agent.updateRotation = false;
            var x = m_Agent.steeringTarget;
            Vector3 direction = (x - m_Agent.transform.position).normalized;
            Quaternion lookRotation = Quaternion.LookRotation(new Vector3(-direction.x, 0, -direction.z));
            m_Agent.transform.rotation = Quaternion.Slerp(m_Agent.transform.rotation, lookRotation, Time.deltaTime * 10);

        }
    }
}