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

namespace KairoEngine.Core
{
    public static class Utilities
    {
        public static string RandomString(int length = 8)
        {
            var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
            var stringChars = new char[length];
            var random = new System.Random();

            for (int i = 0; i < stringChars.Length; i++)
            {
                stringChars[i] = chars[random.Next(chars.Length)];
            }

            var finalString = new string(stringChars);
            return finalString;
        }

        public static string TimeToString(float time)
        {
            string t = "";
            int minutes = (int)time / 60;
            int hours = (int)minutes / 60;
            minutes = (int)minutes % 60;
            int seconds = (int)time % 60;
            if(hours > 1) t += hours.ToString() + " hours ";
            else if(hours == 1) t += hours.ToString() + " hour ";
            if(minutes > 1) t += minutes.ToString() + " minutes ";
            else if(minutes == 1) t += minutes.ToString() + " minute ";
            if(seconds == 1) t += seconds.ToString() + " second";
            else t += seconds.ToString() + " seconds";
            return t;
        }

        public static float Round(float value, int digits = 2)
        {
            float mult = Mathf.Pow(10.0f, (float)digits);
            return Mathf.Round(value * mult) / mult;
        }

        public static Stream Serialize(System.Object source)
        {
            IFormatter formater = new BinaryFormatter();
            Stream stream = new MemoryStream();
            formater.Serialize(stream, source);
            return stream;
        }

        public static T Deserialze<T>(Stream stream)
        {
            IFormatter formatter = new BinaryFormatter();
            stream.Position = 0;
            return (T)formatter.Deserialize(stream);
        }

        public static T Clone<T>(System.Object source)
        {
            return Deserialze<T>(Serialize(source));
        }

        public static string FindFileByName(string fileName)
        {
            string[] res = System.IO.Directory.GetFiles(Application.dataPath + "/../", fileName, System.IO.SearchOption.AllDirectories);
            if (res.Length == 0)
            {
                Debug.LogError("error message ....");
                return fileName;
            }
            string path = res[0].Replace("\\", "/");
            return path;
        }
    }
}