using System;
using System.Linq;
using PixelCrushers.DialogueSystem;
using UnityEngine;
using UnityEngine.AI;

namespace BlueWaterProject
{
    public class OrderToJailState : INpcState
    {
        private NavMeshAgent agent;
        private InShipMapInfo inShipMapInfo;
        private bool isMovingToJail;
        private Jail targetJail;
        private Transform npcTransform;
        
        public OrderToJailState(NavMeshAgent agent, InShipMapInfo inShipMapInfo, Transform npcTransform)
        {
            this.agent = agent;
            this.inShipMapInfo = inShipMapInfo;
            this.npcTransform = npcTransform;
        }

        public void OnEnter(NpcStateMachine npcStateMachine)
        {
            var jails = inShipMapInfo.Jails;
            var sortedJails = jails.OrderBy(jail => Vector3.Distance(agent.transform.position, jail.transform.position)).ToList();
            
            Jail availableJail = null;
            
            foreach (var jail in sortedJails)
            {
                if (!jail.IsUsed)
                {
                    availableJail = jail;
                    break;
                }
            }
            
            if (availableJail != null)
            {
                agent.isStopped = true;
                isMovingToJail = true;
                targetJail = availableJail;
                agent.SetDestination(availableJail.transform.position + new Vector3(0,0,1));
                agent.stoppingDistance = 0;
                agent.speed = 10f;
                targetJail.UseJail();
                agent.isStopped = false;
            }
            else
            {
                //TODO 감옥이 없거나 꽉 찬 경우를 처리해야함
                DialogueManager.Bark("NotJail", npcTransform);
                npcStateMachine.RestorePreviousState();
            }
        }

        public void OnUpdate(NpcStateMachine npcStateMachine)
        {
            if (isMovingToJail)
            {
                if (agent.remainingDistance <= agent.stoppingDistance)
                {
                    isMovingToJail = false;
                }
            }
        }

        public void OnExit(NpcStateMachine npcStateMachine)
        {
            agent.speed = 3.5f;
        }

        public INpcState Clone()
        {
            return null;
        }
    }
}