using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using BITKit;
using BITKit.Entities;
using Cysharp.Threading.Tasks;
using Net.Project.B.Damage;
using Net.Project.B.Dialogue;
using Net.Project.B.Health;
using Net.Project.B.Interaction;
using Project.B.CharacterController;
using UnityEngine;

namespace Net.Project.B.AI
{
    public class AIHumanService:IDisposable
    {
        public int DamageOnBreakDialogue = 0;
        
        private readonly IDialogueService _dialogueService;
        private readonly IWorldInteractionService _interactionService;
        private readonly IEntitiesService _entitiesService;
        private readonly ITicker _ticker;
        private readonly Dictionary<int,IEntity> _entities = new();
        private readonly IDamageService _damageService;
        private readonly Dictionary<int, ValidHandle> _isBusy = new();
        private IEntity _talker;
        private readonly Dictionary<int, HashSet<IDialogueData>> _inDialogue = new();
        
        
        public AIHumanService(ITicker ticker, IEntitiesService entitiesService, IWorldInteractionService interactionService, IDialogueService dialogueService, IDamageService damageService)
        {
            _ticker = ticker;
            _entitiesService = entitiesService;
            _interactionService = interactionService;
            _dialogueService = dialogueService;
            _damageService = damageService;
            _ticker.Add(OnTick);

            _entitiesService.OnAdd += OnAdd;
            _entitiesService.OnRemove += OnRemove;

            _interactionService.OnInteraction += OnInteraction;

            _dialogueService.OnDialogueStart += OnDialogueStart;
            _dialogueService.OnDialogueEnd += OnDialogueEnd;
        }

        private void OnRemove(IEntity obj)
        {
            _entities.TryRemove(obj.Id);
            _inDialogue.TryRemove(obj.Id);
            _isBusy.TryRemove(obj.Id);
        }

        private void OnDialogueEnd(IDialogueData obj)
        {
            if (_isBusy.TryGetValue(obj.ActorIdentity, out var isBusy) is false) return;
            isBusy.RemoveElement(obj.Identity);

            _inDialogue.GetOrCreate(obj.ActorIdentity).Remove(obj);
        }

        private UniTask OnDialogueStart(IDialogueData arg)
        {
            if (_isBusy.TryGetValue(arg.ActorIdentity, out var isBusy) is false) return UniTask.CompletedTask;
            
            isBusy.AddElement(arg.Identity);
            
            _inDialogue.GetOrCreate(arg.ActorIdentity).Add(arg);
            
            return UniTask.CompletedTask;
        }

        private void OnInteraction(object arg1, IWorldInteractable arg2, WorldInteractionProcess arg3, object arg4)
        {
            if(arg3 is not WorldInteractionProcess.Performed)return;
            if(_entities.TryGetValue(arg2.Id,out var entity) is false)return;
            
            
            if(_isBusy[entity.Id] is {Allow:false} isBusy is false ) return;

            _dialogueService.CreateDialogue(new DialogueData()
            {
                ActorIdentity = entity.Id,
                Text = "Hi there",
            }).Forget();
            
            isBusy.AddElement(this);

            if (arg1 is IEntity talker)
            {
                talker.ServiceProvider.QueryComponents(out _talker,out Transform talkerTransform);

                if (entity.ServiceProvider.QueryComponents(out ICharacterController characterController,out AIBlackBoard blackBoard))
                {
                    blackBoard.Dialogue = talker;
                    
                        entity.ServiceProvider.QueryComponents(out Transform transform);

                        var dir = Vector3.ProjectOnPlane(talkerTransform.position - transform.position, Vector3.up);
                        
                        characterController.Rotation = Quaternion.LookRotation(dir);
                }
            }
        }

        private void OnAdd(IEntity obj)
        {
            if(obj.ServiceProvider.QueryComponents(out AIHuman _,out ICharacterController characterController,out DynamicInteractable interactable) is false)return;
            
            interactable.Allow.AddElement(this);

            _entities[obj.Id]=obj;

            var isBusy =_isBusy[obj.Id] = new ValidHandle();
            isBusy.AddListener(x =>
            {
                obj.ServiceProvider.QueryComponents(out AIBlackBoard blackBoard);
                if (x)
                {
                    characterController.AllowMovement.AddDisableElements(this);
                    interactable.Allow.RemoveElement(this);
                }
                else
                {
                    characterController.AllowMovement.RemoveDisableElements(this);
                    interactable.Allow.AddElement(this);
                    blackBoard.Dialogue = null;

                }
            });
        }

        private void OnTick(float obj)
        {
            foreach (var entity in _entities.Values)
            {
                if(_isBusy[entity.Id] is not {Allow:true} isBusy)continue;

                entity.ServiceProvider.QueryComponents(out Transform transform);

                _talker.ServiceProvider.QueryComponents(out Transform talker);

                if (Vector3.Distance(talker.position, transform.position) < 3)continue;
                
                    isBusy.RemoveElement(this);

                    if (isBusy.Allow)
                    {
                        var dialogues = _inDialogue.GetOrCreate(entity.Id);
                        if (dialogues.Count > 0)
                        {
                            foreach (var dialogue in dialogues.ToArray())
                            {
                                dialogue.CancellationTokenSource.Cancel();
                            }
                           
                            _dialogueService.CreateDialogue(new DialogueData()
                            {
                                ActorIdentity = entity.Id,
                                Text = "#Dialogue_Run_Away"
                            });

                            if (DamageOnBreakDialogue > 0)
                            {
                                _damageService.CreateDamageAsync(entity.Id, _talker.Id, DamageOnBreakDialogue,null,transform.position);
                            }
                        }

                        entity.ServiceProvider.QueryComponents(out AIBlackBoard blackBoard);
                        blackBoard.Dialogue = null;
                        
                        isBusy.Clear();
                    }
            }
        }

        public void Dispose()
        { 
            _ticker.Remove(OnTick);
        }
    }

}