using UnityEngine;
using UnityEngine.AI;

namespace BlueWaterProject
{
    public class FindTableState : INpcState
    {
        private NavMeshAgent agent;
        private TycoonMapInfo tycoonMapInfo;
        private Table[] tables;
        private bool doSeat;
        
        private Seat assignedSeat; 

        public FindTableState(NavMeshAgent agent, TycoonMapInfo tycoonMapInfo)
        {
            this.agent = agent;
            this.tycoonMapInfo = tycoonMapInfo;

            tables = tycoonMapInfo.Tables.GetComponentsInChildren<Table>();
        }
        
        public void OnEnter(NpcStateMachine npcStateMachine)
        {
            CheckAndAssignSeat();
        }

        public void OnUpdate(NpcStateMachine npcStateMachine)
        {
            var currentTables = tycoonMapInfo.Tables.GetComponentsInChildren<Table>();
            if (currentTables.Length != tables.Length)
            {
                tables = currentTables;
                CheckAndAssignSeat();
            }
            
            // NPC가 목적지에 도달했는지 확인
            if (doSeat && !agent.pathPending && agent.remainingDistance <= 0.5f)
            {
                // 다음 상태로 전환
                //npcStateMachine.ChangeState(new NextState(agent, /* 다른 필요한 매개변수 */));
            }
        }

        private void CheckAndAssignSeat()
        {
            if (!doSeat)
            {
                foreach(var table in tables)
                {
                    foreach(var seat in table.SeatPoints)
                    {
                        if (seat.IsUsing) continue;
                        agent.SetDestination(seat.transform.position);
                        
                        if (assignedSeat != null) 
                        {
                            assignedSeat.IsUsing = false;
                            assignedSeat.IsDirty = true;
                        }
                        
                        assignedSeat = seat;
                        assignedSeat.IsUsing = true;
                        doSeat = true;
                        return;
                    }
                }
            }
            Debug.Log("All tables are occupied. No place to sit");
        }

        public void OnExit(NpcStateMachine npcStateMachine)
        {
            if (assignedSeat == null) return;
            assignedSeat.IsUsing = false;
            assignedSeat.IsDirty = true;
            
            doSeat = false;
        }
    }
}