using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
using System.Linq;
namespace BITKit
{
    public static partial class Utility
    {
        public static class Path
        {
            [RuntimeInitializeOnLoadMethod]
            static void Init()
            {
                dataPath = Application.dataPath;
                persistentDataPath = Application.persistentDataPath;
                currentDirectory = System.Environment.CurrentDirectory;
            }
            public static string dataPath { get; private set; }
            public static string persistentDataPath { get; private set; }
            public static string currentDirectory { get; private set; }
            public static string Get(params string[] nextPaths)
            {
                currentDirectory = System.Environment.CurrentDirectory;
                var path = currentDirectory;
                var filePath = System.IO.Path.Combine(currentDirectory, "Assembly-CSharp.csproj");
                if (File.Exists(filePath))
                {
                    path = System.IO.Path.Combine(path, "Assets");
                }
                foreach (var nextPath in nextPaths)
                {
                    path = System.IO.Path.Combine(path, nextPath);
                }
                return path;
            }
            public static string CombinePath(params string[] nextPaths)
            {
                string path = nextPaths[0];
                for (int i = 1; i < nextPaths.Length - 1; i++)
                {
                    path += "/" + nextPaths[i];
                }
                path += "/" + nextPaths.Last();
                return path;
            }
            public static IEnumerable<string> ReadAllFile(string folderPath, string filter = null)
            {
                if (Directory.Exists(folderPath))
                {
                    DirectoryInfo directoryInfo = new DirectoryInfo(folderPath);

                    var files = directoryInfo.GetFiles()
                            .OrderBy(x => x.LastWriteTime)
                            .Select(x => x);
                    if (filter.IsValid())
                    {
                        files = files.Where(x => x.Name.Contains(filter));
                    }
                    return files.Select(x => x.ToString());
                }
                return new List<string>();
            }
        }
    }
}