using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.Serialization.Formatters.Binary;
using SimpleFileBrowser;
using UnityEngine;

namespace Level
{
    public class LevelSaveSystem
    {
        public void Save(LevelData levelData)
        {
            string[] extensions = new string[1];
            extensions[0] = "*.lvl";
            FileBrowser.SetFilters(true, extensions);

            FileBrowser.ShowSaveDialog(
                (string[] paths) => SaveLevel(paths, levelData),
                null,
                FileBrowser.PickMode.Files,
                false,
                null,
                "level.lvl"
            );
        }


        private void SaveLevel(string[] paths, LevelData levelData)
        {
            string filePath = paths[0];
            string directoryName = FileBrowserHelpers.GetDirectoryName(filePath);
            string fileName = FileBrowserHelpers.GetFilename(filePath);

            if (!FileBrowserHelpers.FileExists(filePath))
            {
                FileBrowserHelpers.CreateFileInDirectory(directoryName, fileName);
            }

            FileBrowserHelpers.WriteBytesToFile(filePath, levelData.ToBytes());

            Debug.Log("File saved to " + filePath);
        }


        public void Load()
        {
            string[] extensions = new string[1];
            extensions[0] = "*.lvl";
            FileBrowser.SetFilters(true, extensions);

            FileBrowser.ShowLoadDialog(
                LoadLevel,
                null,
                FileBrowser.PickMode.Files
            );
        }


        public void LoadLevel(string[] paths)
        {
            string filePath = paths[0];

            if (!FileBrowserHelpers.FileExists(filePath))
            {
                Debug.LogError("File not found");
                return;
            }

            byte[] levelDataBytes = FileBrowserHelpers.ReadBytesFromFile(filePath);
            LevelData levelData = LevelData.FromBytes(levelDataBytes);

            Debug.Log("Loaded file " + filePath);

            LevelBuilder.Instance.LoadLevelData(levelData);
        }
    }
}