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

[CustomEditor(typeof(DialogueTrigger))]
public class DialogueTriggerEditor : Editor
{
    private SerializedProperty _conversations;

    private void OnEnable()
    {
        _conversations = serializedObject.FindProperty("conversations");
    }

    public override void OnInspectorGUI()
    {
        //base.OnInspectorGUI();

        serializedObject.Update();

        _conversations.arraySize = EditorGUILayout.IntField("Conversations Size", _conversations.arraySize);

        for (int x = 0; x < _conversations.arraySize; x++)
        {
            var conversation = _conversations.GetArrayElementAtIndex(x);

            var conversationName = conversation.FindPropertyRelative("conversationName");

            EditorGUI.indentLevel++;
            EditorGUILayout.PropertyField(conversationName);

            EditorGUI.indentLevel++;
            var _dialogues = conversation.FindPropertyRelative("Dialogues");
            
            _dialogues.arraySize = EditorGUILayout.IntField("Dialogues size", _dialogues.arraySize);

            for (int i = 0; i < _dialogues.arraySize; i++)
            {
                var dialogue = _dialogues.GetArrayElementAtIndex(i);
                EditorGUI.indentLevel++;
                EditorGUILayout.PropertyField(dialogue, new GUIContent("Dialogue " + i), true);
                
                EditorGUI.indentLevel--;
            }

            if (_dialogues.arraySize > 0)
            {
                if (GUILayout.Button("Save Conversation"))
                {
                    
                }
            }

            EditorGUI.indentLevel--;
            EditorGUI.indentLevel--;
        }

        serializedObject.ApplyModifiedProperties();
    }
}

It seems like the serializedObject contains old 3 dialogues with text names and sentences even if I set the conversations size to 0 and all dialogues also set in the inspector to 0 but still when using a break point on the line:

serializedObject.Update();

I see on the serializedObject that it contains the old dialogues. Either when running the game or in the editor I see the old dialogues. And then when running the game it's using this dialogues.

But I want that if I set the conversations size to 0 or the dialogues size to 0 to delete all dialogues sentences names all text.

Here is a screenshot showing when using a break point on it before the game is running: There are 3 dialogues names and sentences:

And this is a screenshot of the editor: Everything is empty the conversations size is set to 0. But still when running the game it's taking/getting the old dialogues from the serializedObject.

I'm not sure yet where this old 3 dialogues are kept. In the editor memory ?

Ok after a long search I found that the text of the dialogues names and sentences is stored for some reason inside the project scene file:

With my program that search inside files I could find it in the scene .unity file of my project.

Still I can't figure out what object or what script store it or call it or what and why make it show when running the game.

But at least I found where it stored. What next ? I have no clue.

After edited the file in notepad I found the area of the text:

GameObject:
  m_ObjectHideFlags: 0
  m_CorrespondingSourceObject: {fileID: 0}
  m_PrefabInstance: {fileID: 0}
  m_PrefabAsset: {fileID: 0}
  serializedVersion: 6
  m_Component:
  - component: {fileID: 1705786629}
  - component: {fileID: 1705786630}
  m_Layer: 0
  m_Name: DialogueTrigger
  m_TagString: Untagged
  m_Icon: {fileID: 0}
  m_NavMeshLayer: 0
  m_StaticEditorFlags: 0
  m_IsActive: 1
--- !u!4 &1705786629
Transform:
  m_ObjectHideFlags: 0
  m_CorrespondingSourceObject: {fileID: 0}
  m_PrefabInstance: {fileID: 0}
  m_PrefabAsset: {fileID: 0}
  m_GameObject: {fileID: 1705786628}
  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
  m_LocalPosition: {x: 0, y: 0, z: 0}
  m_LocalScale: {x: 1, y: 1, z: 1}
  m_Children: []
  m_Father: {fileID: 104156395}
  m_RootOrder: 2
  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
--- !u!114 &1705786630
MonoBehaviour:
  m_ObjectHideFlags: 0
  m_CorrespondingSourceObject: {fileID: 0}
  m_PrefabInstance: {fileID: 0}
  m_PrefabAsset: {fileID: 0}
  m_GameObject: {fileID: 1705786628}
  m_Enabled: 1
  m_EditorHideFlags: 0
  m_Script: {fileID: 11500000, guid: 8a658bdd09c49324ba103199b05e0b88, type: 3}
  m_Name: 
  m_EditorClassIdentifier: 
  conversations: []
  dialogue:
  - name: NAVI
    sentences:
    - Hey Hey, Someone is coming...
    - Quick let's hide.
  - name: PLAYER
    sentences:
    - I'm the player so....
    - And I can't play now
  - name: NEW MAN
    sentences:
    - Hello my friend
    - I need help
    - I lost my basket full of apples
    - Please help me find it
    - Your award will help you in your quest
  dialogueNum: 0

But it's a small part of the file not sure if it's telling anything more.