using UnityEngine;
using UnityEditor;
using System.Linq;
using SimpleJSON;
using System.IO;

namespace dlu
{

[CustomEditor(typeof(SceneController))]
public class SceneControllerEditor : Editor
{
    private bool showLabels;
    private bool exportContext;
    private JSONArray sceneJson;

    public override void OnInspectorGUI()
    {
        SceneController sc = (SceneController) target;
        base.DrawDefaultInspector();

        EditorGUILayout.Space();
        this.ExportContext(sc);

        EditorGUILayout.Space();
        this.ShowSemanticLabels(sc);
    }

    private void ShowSemanticLabels(SceneController sc)
    {
        showLabels = EditorGUILayout.BeginFoldoutHeaderGroup(showLabels, "Semantic labels");

        if (showLabels)
        {
            if (sc.semanticBehaviours == null || GUILayout.Button("Refresh list of semantic labels"))
            {
                sc.FindSemanticLabels();
            }

            foreach (SemanticBehaviour sb in sc.semanticBehaviours)
            {
                string label = sb.GetComponent<InstanceIdentifier>().name;
                if (sb.is_a.Count() > 0)
                {
                    label += $" a {sb.is_a.Split('#')[1]}";
                }
                EditorGUILayout.ObjectField(label, sb.gameObject, typeof(GameObject), true);
            }
        }

        EditorGUILayout.EndFoldoutHeaderGroup();
    }

    private void ExportContext(SceneController sc)
    {
        exportContext = EditorGUILayout.BeginFoldoutHeaderGroup(exportContext, "Export context");

        if (exportContext)
        {
            if (sceneJson == null || GUILayout.Button("Refresh scene JSON"))
            {
                sceneJson = sc.GenerateContextJSON();
            }
            EditorGUILayout.TextArea(sceneJson.ToString());
            string exportFile = EditorGUILayout.TextField("Export file", "Assets/DLU/Resources/context.json");
            if (GUILayout.Button("Export to file"))
            {
                File.WriteAllText(exportFile, sceneJson.ToString());
            }
        }

        EditorGUILayout.EndFoldoutHeaderGroup();
    }
}

}