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

namespace WorldStreamer2
{

    [CustomEditor(typeof(ColliderStreamerManager))]
    class ColliderStreamerManagerEditor : Editor
    {




#if UNITY_5_3 || UNITY_5_3_OR_NEWER

        [MenuItem("GameObject/NM/Collider Streamer", false, 9)]
        static public void CreateWorldStreamer()
        {
            GameObject gameObject = new GameObject("ColliderStreamerEditor");
            gameObject.tag = ColliderStreamerManager.COLLIDERSTREAMERMANAGERTAG;
            gameObject.AddComponent<ColliderStreamerManager>();
        }

        public override void OnInspectorGUI()
        {

            DrawDefaultInspector();



            ColliderStreamerManager myTarget = (ColliderStreamerManager)target;


            string newTag = EditorGUILayout.TagField(new GUIContent("Player Tag", "Collider Streamer will search for player by tag."), myTarget.playerTag);

            if (myTarget.playerTag != newTag)
            {
                myTarget.playerTag = newTag;
                EditorUtility.SetDirty(myTarget);
            }

            //Check tag exist
            // Open tag manager
            SerializedObject tagManager = new SerializedObject(AssetDatabase.LoadAllAssetsAtPath("ProjectSettings/TagManager.asset")[0]);
            SerializedProperty tagsProp = tagManager.FindProperty("tags");

            // First check if it is not already present
            bool found = false;
            for (int i = 0; i < tagsProp.arraySize; i++)
            {
                SerializedProperty t = tagsProp.GetArrayElementAtIndex(i);
                if (t.stringValue.Equals(ColliderStreamerManager.COLLIDERSTREAMERMANAGERTAG))
                {
                    found = true;
                    break;
                }
            }
            if (!found)
            {
                EditorGUILayout.HelpBox("No tag " + ColliderStreamerManager.COLLIDERSTREAMERMANAGERTAG + " in unity.", MessageType.Error, true);
                if (GUILayout.Button("Add tag to unity"))
                {
                    found = false;
                    for (int i = 0; i < tagsProp.arraySize; i++)
                    {
                        SerializedProperty t = tagsProp.GetArrayElementAtIndex(i);
                        if (t.stringValue.Equals(ColliderStreamerManager.COLLIDERSTREAMERMANAGERTAG))
                        {
                            found = true;
                            break;
                        }
                    }
                    if (!found)
                    {
                        tagsProp.InsertArrayElementAtIndex(0);
                        SerializedProperty n = tagsProp.GetArrayElementAtIndex(0);
                        n.stringValue = ColliderStreamerManager.COLLIDERSTREAMERMANAGERTAG;
                        tagManager.ApplyModifiedProperties();
                    }

                    myTarget.tag = Streamer.STREAMERTAG;
                }
            }

            if (myTarget.tag != ColliderStreamerManager.COLLIDERSTREAMERMANAGERTAG)
            {
                EditorGUILayout.HelpBox("Streamer must have " + ColliderStreamerManager.COLLIDERSTREAMERMANAGERTAG + " Tag.", MessageType.Error, true);
                if (GUILayout.Button("Change tag"))
                {
                    myTarget.tag = ColliderStreamerManager.COLLIDERSTREAMERMANAGERTAG;
                }

            }



        }



#endif
    }
}