using System;
using System.Collections.Generic;
using System.Linq;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class ActiveScoppedElements : MonoBehaviour
{
    
    [Serializable]
    public struct ObjectToInstantiate {
        public List<String> elements;
        public GameObject obj;
    }


    // Start is called before the first frame update
    public TextAsset jsonFile;
    public HashSet<String> actives = new HashSet<String>();
    public HashSet<GameObject> InstantiatesObject = new HashSet<GameObject>();
    public TextMeshProUGUI textToUpdate;
    public TextMeshProUGUI objectInstantiateText;
    /*public ObjectToInstantiate[] objectToInstantiates;*/
    public HashSet<GameObject> DisableGameObjects = new HashSet<GameObject>();
    public GameObject[] InformationObjs;
    public GameObject[] DebugObjs;
    public Button button;
        

    void Start()
    {
        if (button != null)
        {
            button.onClick.AddListener(this.Center);
        }
        if (this.textToUpdate != null)
        {
            textToUpdate.text = "Scanner des Markers...";
        }
    }

    public void AddScoppedElement(String name)
    {
        Debug.Log("Added " + name);
        if (!actives.Contains(name))
        {
            actives.Add(name);
            RefreshText();
            RefreshAtom();
        }
    }

    public void Center()
    {
        Debug.Log("Center called !");
        foreach (var obj in InstantiatesObject)
        {
            Vector3 cameraPosition = Camera.main.transform.position;

            // Obtenez la rotation de la caméra sans inclure la rotation autour de l'axe Y
            Quaternion cameraRotation = Quaternion.Euler(0, Camera.main.transform.rotation.eulerAngles.y, 0);

            // Calculez la position finale en ajoutant la direction vers l'avant multipliée par la distance désirée
            Vector3 position = cameraPosition + cameraRotation * Vector3.forward * 0.35f;

            //var instantiatedObj = Instantiate(objt.obj, position, cameraRotation);
            
            obj.transform.position = position;
            obj.transform.localScale = new Vector3(0.05f, 0.05f, 0.05f);
            obj.transform.rotation = cameraRotation;
        }
    }

    private void RefreshText()
    {
        if (this.textToUpdate != null)
        {
            this.textToUpdate.text = String.Join(", ", this.actives);
        }
    }
    
    static IEnumerable<string> GetPermutations(List<string> list)
    {
        if (list.Count == 1)
        {
            // Cas de base : une seule chaîne
            yield return list[0];
        }
        else
        {
            // Récursion pour obtenir les permutations du reste de la liste
            foreach (var item in list)
            {
                var remaining = new List<string>(list);
                remaining.Remove(item);

                foreach (var subPermutation in GetPermutations(remaining))
                {
                    // Concaténer l'élément actuel avec les permutations du reste
                    yield return item + subPermutation;
                }
            }
        }
    }

    private void DisableAllMarkerModel()
    {
        foreach (var o in GameObject.FindGameObjectsWithTag("OBJ"))
        {
            o.SetActive(false);
            DisableGameObjects.Add(o);
        }
    }

    private void EnableAllMarkerModel()
    {
        foreach (var o in DisableGameObjects)
        {
            o.SetActive(true);
        }
        DisableGameObjects.Clear();
    }

    private GameObject FindGameObjectWithFormula()
    {
        var factory = MoleculeFactory.getInstrance(this.jsonFile);
        Debug.Log("ACTIVES ELEMENTS:");
        Debug.Log(this.actives);
        foreach (var formula in GetPermutations(this.actives.ToList()))
        {
            Debug.Log("FORMULA: " + String.Join("", formula));
            if (factory.hasMolecule(String.Join("", formula)))
            {
                return factory.createMolecule(String.Join("", formula));
            }
        }
        return null;
    }
    
    private void RefreshAtom()
    {
        var objToFind = FindGameObjectWithFormula();
        if (objToFind != null)
        {
            Vector3 cameraPosition = Camera.main.transform.position;

            // Obtenez la rotation de la caméra sans inclure la rotation autour de l'axe Y
            Quaternion cameraRotation = Quaternion.Euler(0, Camera.main.transform.rotation.eulerAngles.y, 0);

            // Calculez la position finale en ajoutant la direction vers l'avant multipliée par la distance désirée
            Vector3 position = cameraPosition + cameraRotation * Vector3.forward * 0.35f;

            //var instantiatedObj = Instantiate(objt.obj, position, cameraRotation);
            
            objToFind.transform.position = position;
            objToFind.transform.localScale = new Vector3(0.05f, 0.05f, 0.05f);
            objToFind.transform.rotation = cameraRotation;
            
            MeshRenderer meshRenderer = objToFind.GetComponent<MeshRenderer>();
            if (meshRenderer != null)
            {
                float sizeInDirection = meshRenderer.bounds.size.x; // Pour la hauteur, ajustez selon votre besoin
                Debug.Log("SizeInDirection: " + sizeInDirection);
                objToFind.transform.position -= objToFind.transform.right * sizeInDirection * 0.175f;
            }
            
            Debug.Log("RefreshAtom(): Created " + objToFind.name);

            objToFind.name = "[N] " + objToFind.name;
            InstantiatesObject.Add(objToFind);
            this.OnInstantiateObject(objToFind);
            Debug.Log("Instantiate " + objToFind.name);
            DisableAllMarkerModel();
        } else {
            foreach (var o in InstantiatesObject) {
                Destroy(o);
                OnDestroyObject(o);
            }
            InstantiatesObject.Clear();
            EnableAllMarkerModel();
        }
        /*foreach (var objt in objectToInstantiates)
        {
            if (objt.elements.TrueForAll((s => actives.Contains(s))))
            {
                foreach (var objName in objt.elements)
                {
                    var a = GameObject.Find("OBJ_" + objName);
                    if (a != null)
                    {
                        a.SetActive(false);
                        DisableGameObjects.Add(a);
                    }
                }
                
                // Obtenez la position de la caméra
                Vector3 cameraPosition = Camera.main.transform.position;

                // Obtenez la rotation de la caméra sans inclure la rotation autour de l'axe Y
                Quaternion cameraRotation = Quaternion.Euler(0, Camera.main.transform.rotation.eulerAngles.y, 0);

                // Calculez la position finale en ajoutant la direction vers l'avant multipliée par la distance désirée
                Vector3 position = cameraPosition + cameraRotation * Vector3.forward * 0.35f;

                //var instantiatedObj = Instantiate(objt.obj, position, cameraRotation);
                
                var obj = MoleculeFactory.getInstrance(this.jsonFile).createMolecule("CO2");
                obj.transform.position = position;
                obj.transform.localScale = new Vector3(0.05f, 0.05f, 0.05f);
                obj.transform.rotation = cameraRotation;
                Debug.Log("RefreshAtom(): Created " + obj.name);

                obj.name = "[N] " + objt.obj.name;
                InstantiatesObject.Add(obj);
                this.OnInstantiateObject(obj);
                Debug.Log("Instantiate " + obj.name);
            }
            else
            {
                var a = InstantiatesObject.FirstOrDefault(s => s.name == ("[N] " + objt.obj.name));
                if (a != null)
                {
                    Debug.Log("Destroy " + a.name);
                    InstantiatesObject.Remove(a);
                    OnDestroyObject(a);
                    Destroy(a);
                    foreach (var disableGameObject in DisableGameObjects)
                    {
                        disableGameObject.SetActive(true);
                    }
                    DisableGameObjects.Clear();
                }
            }
        }*/

        if (InstantiatesObject.Count > 0)
        {
            objectInstantiateText.text = String.Join(", ", InstantiatesObject.Select((s) => s.name));
        }
        else
        {
            objectInstantiateText.text = "En attente...";
        }
    }

    private void OnInstantiateObject(GameObject obj)
    {
        foreach (var informationObj in InformationObjs)
        {
            informationObj.SetActive(true);
        }
        foreach (var debugObj in DebugObjs)
        {
            debugObj.SetActive(false);
        }
    }

    private void OnDestroyObject(GameObject obj)
    {
        foreach (var informationObj in InformationObjs)
        {
            informationObj.SetActive(false);
        }
        foreach (var debugObj in DebugObjs)
        {
            debugObj.SetActive(true);
        }
    }

    public void RemoveUnscoppedElement(String elementName)
    {
        Debug.Log("Removed " + elementName);
        actives.Remove(elementName);
        RefreshText();
        RefreshAtom();
    }

    void Update()
    {
        
    }
}