using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using UnityEngine.Events;

public class nonEssentialCharacterElementsManager : MonoBehaviour
{
    public List<objectToSelectInfo> objectToSelectInfoList = new List<objectToSelectInfo> ();

    [TextArea (3, 15)]
    public string explanation = "You can remove any of the elements on this list which you " +
                                                  "don't want to use on this character, as all of them are non essential for the proper " +
                                                  "work of the character. Press R if you want to remove just certain elements of the list.\n\n" +
                                                  "Buttons usage:\n\n" +
                                                  "x-remove element of the list\n" +
                                                  "v ^-change element position on the list\n" +
                                                  "o-select object on the list\n" +
                                                  "R-destroy object\n" +
                                                  "E-enable object\n" +
                                                  "D-disable object";



    public List<string> objectSearchResultList = new List<string> ();

    public string objectSearcherName = "";

    public bool searchObjectsActive;


    public void clearObjectsSearcResultList ()
    {
        objectSearchResultList.Clear ();

        objectSearcherName = "";

        searchObjectsActive = false;
    }

    public void showObjectsBySearchName ()
    {
        if (objectSearcherName != null && objectSearcherName != "") {
            objectSearchResultList.Clear ();

            searchObjectsActive = true;

            string currentTextToSearch = objectSearcherName;

            if (currentTextToSearch != "") {
                currentTextToSearch = currentTextToSearch.ToLower ();

                int objectToSelectInfoListCount = objectToSelectInfoList.Count;

                for (int i = 0; i < objectToSelectInfoListCount; i++) {
                    objectToSelectInfo currentObjectToSelectInfo = objectToSelectInfoList [i];

                    if (currentObjectToSelectInfo.Name != "") {
                        string objectName = currentObjectToSelectInfo.Name.ToLower ();

                        if (objectName.Contains (currentTextToSearch) ||
                            objectName.Equals (currentTextToSearch)) {

                            if (!objectSearchResultList.Contains (currentObjectToSelectInfo.Name)) {
                                objectSearchResultList.Add (currentObjectToSelectInfo.Name);
                            }
                        }
                    }
                }
            }
        }
    }

    public void selectObjectByName (string objectName)
    {
        int curretIndex = objectToSelectInfoList.FindIndex (s => s.Name.Equals (objectName));

        if (curretIndex > -1) {
            selectObjectByIndex (curretIndex);
        }
    }

    public void selectObjectByIndex (int index)
    {
        objectToSelectInfo currentObjectToSelectInfo = objectToSelectInfoList [index];

        if (currentObjectToSelectInfo.objectToSelect != null) {
            GKC_Utils.setActiveGameObjectInEditor (currentObjectToSelectInfo.objectToSelect);
        }
    }

    public void removeObjectByName (string objectName)
    {
        int curretIndex = objectToSelectInfoList.FindIndex (s => s.Name.Equals (objectName));

        if (curretIndex > -1) {
            removeObjectByIndex (curretIndex, true);
        }
    }

    public void destroyAllObjects ()
    {
        GKC_Utils.unpackPrefabObjectByCheckingTransformRoot (gameObject);

        int objectToSelectInfoListCount = objectToSelectInfoList.Count;

        for (int i = 0; i < objectToSelectInfoListCount; i++) {
            removeObjectByIndex (i, false);
        }

        objectToSelectInfoList.Clear ();

        updateComponent ();
    }

    public void removeObjectByIndex (int index, bool destroyingSingleObject)
    {
        bool updateComponentResult = false;

        objectToSelectInfo currentObjectToSelectInfo = objectToSelectInfoList [index];

        if (currentObjectToSelectInfo.objectToSelect != null) {
            if (destroyingSingleObject) {
                GKC_Utils.unpackPrefabObjectByCheckingTransformRoot (gameObject);
            }

            //string objectName = currentObjectToSelectInfo.objectToSelect.name;

            //Undo.DestroyObjectImmediate (currentObjectToSelectInfo.objectToSelect);

            DestroyImmediate (currentObjectToSelectInfo.objectToSelect);

            //Undo.RecordObject (this, "Remove Element From List " + objectName);

            objectToSelectInfoList.RemoveAt (index);

            if (destroyingSingleObject) {
                updateComponentResult = true;
            }
        }

        if (currentObjectToSelectInfo.useEventOnDestroyObject) {
            updateComponentResult = true;

            currentObjectToSelectInfo.eventOnDestroyObject.Invoke ();
        }

        if (updateComponentResult) {
            updateComponent ();
        }
    }

    public void updateObjectNames ()
    {
        int objectToSelectInfoListCount = objectToSelectInfoList.Count;

        for (int i = 0; i < objectToSelectInfoListCount; i++) {
            objectToSelectInfo currentObjectToSelectInfo = objectToSelectInfoList [i];

            if (currentObjectToSelectInfo.objectToSelect != null) {
                currentObjectToSelectInfo.Name = currentObjectToSelectInfo.objectToSelect.name;
            }
        }

        updateComponent ();
    }

    public void enableOrDisableObjectByName (string objectName, bool state)
    {
        int curretIndex = objectToSelectInfoList.FindIndex (s => s.Name.Equals (objectName));

        if (curretIndex > -1) {
            enableOrDisableObjectByIndex (curretIndex, state);
        }

        updateComponent ();
    }

    public void enableOrDisableObjectByIndex (int index, bool state)
    {
        objectToSelectInfo currentObjectToSelectInfo = objectToSelectInfoList [index];

        if (currentObjectToSelectInfo.objectToSelect != null) {
            currentObjectToSelectInfo.objectToSelect.SetActive (state);

            if (currentObjectToSelectInfo.useEventsOnEnableDisableObject) {
                if (state) {
                    currentObjectToSelectInfo.eventOnEnableObject.Invoke ();
                } else {
                    currentObjectToSelectInfo.eventOnDisableObject.Invoke ();
                }
            }
        }

        updateComponent ();
    }

    public void enableOrDisableAllObjects (bool state)
    {
        int objectToSelectInfoListCount = objectToSelectInfoList.Count;

        for (int i = 0; i < objectToSelectInfoListCount; i++) {
            objectToSelectInfo currentObjectToSelectInfo = objectToSelectInfoList [i];

            if (currentObjectToSelectInfo.objectToSelect != null) {
                currentObjectToSelectInfo.objectToSelect.SetActive (state);

                if (currentObjectToSelectInfo.useEventsOnEnableDisableObject) {
                    if (state) {
                        currentObjectToSelectInfo.eventOnEnableObject.Invoke ();
                    } else {
                        currentObjectToSelectInfo.eventOnDisableObject.Invoke ();
                    }
                }
            }
        }

        updateComponent ();
    }

    public void updateComponent ()
    {
        GKC_Utils.updateComponent (this);

        GKC_Utils.updateDirtyScene ("Update Non essential character elements manager", gameObject);
    }

    [System.Serializable]
    public class objectToSelectInfo
    {
        public string Name;

        public GameObject objectToSelect;

        public bool useEventsOnEnableDisableObject;
        public UnityEvent eventOnEnableObject;
        public UnityEvent eventOnDisableObject;

        public bool useEventOnDestroyObject;
        public UnityEvent eventOnDestroyObject;
    }
}