using UnityEditor;
using UnityEngine;
using Newtonsoft.Json;
using System.Collections.Generic;
using System.IO;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text.RegularExpressions;

public class PositionExporterEditor : EditorWindow
{
    [MenuItem("Tools/Export Positions to JSON")]
    public static void ShowWindow()
    {
        GetWindow<PositionExporterEditor>("Export Positions to JSON");
    }

    private GameObject[] objectsToProcess;

    private int ExtractNumber(string name)
    {
        // Extract the first number from the name
        var match = Regex.Match(name, @"\d+");
        return match.Success ? int.Parse(match.Value) : 0;
    }

    private void OnGUI()
    {
        GUILayout.Label("Export Positions to JSON", EditorStyles.boldLabel);

        if (GUILayout.Button("Select GameObjects"))
        {
            objectsToProcess = Selection.gameObjects;
            // Sort the objects by numeric value in their names
            if (objectsToProcess != null)
            {
                objectsToProcess = objectsToProcess
                    .OrderBy(go => ExtractNumber(go.name))
                    .ToArray();
            }
        }

        if (objectsToProcess != null && objectsToProcess.Length > 0)
        {
            GUILayout.Label("Selected GameObjects:");
            foreach (var obj in objectsToProcess)
            {
                GUILayout.Label(obj.name);
            }

            if (GUILayout.Button("Export to JSON"))
            {
                ExportPositionsToJson();
            }
        }
        else
        {
            GUILayout.Label("No GameObjects selected.");
        }
    }

    [System.Serializable]
    public class PathPoint {

        public PathPoint(double l1,double l2) {
            longitude = l1;
            latitude = l2;
        }
        public double longitude;
        public double latitude;
    }

    [System.Serializable]
    public class ObjPos {
        public string objName;
        public List<PathPoint> paths = new List<PathPoint>();
    }



    private void ExportPositionsToJson()
    {
        if (objectsToProcess == null || objectsToProcess.Length == 0)
        {
            EditorUtility.DisplayDialog("Error", "No GameObjects selected.", "OK");
            return;
        }

        List<ObjPos> objPos = new List<ObjPos>();

        foreach (var obj in objectsToProcess)
        {
            ObjPos obj1 = new ObjPos();
            obj1.objName = obj.name;
            foreach (Transform child in obj.transform)
            {
                double longitude = (child.localPosition.x - 0.5 + 8607.658) / 75.642;

                double latitude = (child.localPosition.y + 6.7 + 2640.548) / 87.990;

                obj1.paths.Add(new PathPoint(longitude,latitude));
            }
            objPos.Add(obj1);
        }

        string json = JsonConvert.SerializeObject(objPos);

        string path = EditorUtility.SaveFilePanel("Save JSON file", "", "positions.json", "json");
        if (!string.IsNullOrEmpty(path))
        {
            File.WriteAllText(path, json);
            EditorUtility.DisplayDialog("Success", "Positions exported successfully.", "OK");
        }
    }
}