using System.Collections;
using System.Collections.Generic;
using UnityEngine;
//using KairoEngine.Utilities;
using TMPro;
using Sirenix.OdinInspector;
using NodeCanvas.Framework;
using KairoEngine.Core;

namespace KairoEngine.CharacterSystem
{
    public class BehaviorDebugerUi : MonoBehaviour
    {
        public Transform windowTransform;
        public Transform dataContainer;

        public TextMeshProUGUI titleUi;
        public GameObject behaviorDataUiPrefab;

        public float windowDistance = 3.5f;

        public Color whiteColor;
        public Color redColor;
        public Color blueColor;
        public Color greenColor;
        public Color grayColor;
        public Color magentaColor;

        [ReadOnly] public KairoEngine.CharacterSystem.CharacterController character;

        [ReadOnly] public Blackboard blackboard;

        [ReadOnly] public KairoEngine.CharacterSystem.CharacterController targetCharacter;

        public List<BehaviorDebugerDataUi> dataSlots;
        private bool initialized = false;

        public void Initialize(KairoEngine.CharacterSystem.CharacterController debugCharacter)
        {
            if(debugCharacter == null) 
            {
                Destroy(this.gameObject);
                return;
            }
            initialized = true;
            character = debugCharacter;
            blackboard = debugCharacter.GetComponent<Blackboard>();
            if(blackboard == null) 
            {
                Debug.LogError("Could not find Blackboard component in " + character.unique_name);
                //Destroy(this.gameObject);
                //return;
            }
            titleUi.text = character.unique_name;
            for (int i = 0; i < 4; i++)
            {
                GameObject slot = Instantiate(behaviorDataUiPrefab, dataContainer);
                BehaviorDebugerDataUi slotData = slot.GetComponent<BehaviorDebugerDataUi>();
                if(slotData != null) dataSlots.Add(slotData);
                else Debug.LogError("Could not find component BehaviorDebugerDataUi in " + slot.name);
                
            }
            UpdateData();
            UpdatePanelPosition(character.transform, windowTransform);
        }

        void Update()
        {
            if(initialized == false) return;
            UpdateData();
            if(character != null) UpdatePanelPosition(character.transform, windowTransform);
        }

        private void UpdatePanelPosition(Transform target, Transform targetPanel)
        {
            Vector3 pos = new Vector3(target.position.x, target.position.y + windowDistance, target.position.z);
            Vector3 screenPos = Camera.main.WorldToScreenPoint(pos);
            targetPanel.GetComponent<RectTransform>().position = screenPos;
        }

        private void UpdateData()
        {
            if(character == null)
            {
                Destroy(this.gameObject);
                return;
            }
            if(blackboard == null)
            {
                blackboard = character.GetComponent<Blackboard>();
                if(blackboard == null) return;
            }
            string characterState = "";
            Color stateColor = greenColor;
            //Debug.Log(behavior.stateMachine.currentState.GetType().ToString());
            string currentState = blackboard.GetVariable<string>("currentState").value;
            switch (currentState)
            {
                case "Idle":
                    characterState = "Idle";
                    break;
                case "Shooting":
                    characterState = "Shoot";
                    break;
                case "Moving":
                    characterState = "Move";
                    break;
                case "Aiming":
                    characterState = "Aim";
                    break;
                case "Melee Attack":
                    characterState = "Melee Attack";
                    break;
                case "Unarmed Attack":
                    characterState = "Unarmed Attack";
                    break;
                case "Reloading":
                    characterState = "Reload";
                    break;
                case "Equiping Weapon":
                    characterState = "Equip Weapon";
                    break;
                case "Dead":
                    characterState = "Dead";
                    stateColor = redColor;
                    break;
                default:
                    characterState = "Undefined State";
                    stateColor = redColor;
                    break;
            }
            if(characterState == "")
            {
                characterState = "NULL";
                stateColor = grayColor;
            }
            string target = "";
            string distance = "";
            Color targetColor = greenColor;
            Color distanceColor = whiteColor;
            Transform currentTarget = blackboard.GetVariable<Transform>("target").value;
            float currentAttackDisntace = blackboard.GetVariable<float>("attackDistance").value;
            Vector3 currentTargetPosition = blackboard.GetVariable<Vector3>("targetPosition").value;
            if(currentTarget != null)
            {
                if(targetCharacter == null) targetCharacter = currentTarget.root.GetComponentInChildren<CharacterController>();
                if(targetCharacter != null)  target = targetCharacter.unique_name;
                else target = currentTarget.name;
                float d = Vector3.Distance(currentTarget.position, character.transform.position);
                d = KairoEngine.Core.Utilities.Round(d, 1);
                if(d <= currentAttackDisntace) distanceColor = blueColor;
                else distanceColor = redColor;
                distance = d.ToString() + "m/" + KairoEngine.Core.Utilities.Round(currentAttackDisntace, 1) + "m";
                
            } 
            else if(currentTargetPosition != new Vector3())
            {
                targetCharacter = null;
                target = currentTargetPosition.ToString();
                targetColor = grayColor;
                float d = Vector3.Distance(currentTargetPosition, character.transform.position);
                d = KairoEngine.Core.Utilities.Round(d, 1);
                if(d <= currentAttackDisntace) distanceColor = blueColor;
                else distanceColor = redColor;
                distance = d.ToString() + "m/" + KairoEngine.Core.Utilities.Round(currentAttackDisntace, 1) + "m";
            }
            else
            {
                targetCharacter = null;
                target = "NULL";
                targetColor = character.HasEquipedItem() ? redColor : grayColor;
                distance = "NULL/" + KairoEngine.Core.Utilities.Round(currentAttackDisntace, 1) + "m";
                distanceColor = grayColor;
            }
            string weapon = "";
            Color weaponColor = magentaColor;
            if(character.HasEquipedItem())
            {
                weapon = character.GetEquipedItem().item.title;
            }
            else
            {
                weapon = "NULL";
                weaponColor = grayColor;
            }
            if(currentState != "Dead")
            {
                dataSlots[0].Setup("State:", characterState, stateColor);
                dataSlots[1].Setup("Target:", target, targetColor);
                dataSlots[2].Setup("Distance:", distance, distanceColor);
                dataSlots[3].Setup("Weapon:", weapon, weaponColor);
            }
            else
            {
                dataSlots[0].Setup("State:", characterState, stateColor);
                dataSlots[1].Setup("Target:", "NULL", grayColor);
                dataSlots[2].Setup("Distance:", "NULL", grayColor);
                dataSlots[3].Setup("Weapon:", "NULL", grayColor);
            }
            
        }
    }
}