using UnityEngine;
using System.Collections;
using FairyGUI;
using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using System.Net;
using taurus.unity;
using System.Globalization;

namespace Game
{
    public static class Utils
    {

        public static GameObject CopyPrefab(GameObject prefab)
        {
            var obj = GameObject.Instantiate<GameObject>(prefab);
            obj.transform.localPosition = Vector3.zero;
            obj.transform.localRotation = Quaternion.identity;
            obj.transform.localScale = new Vector3(100, 100, 100);
            return obj;
        }

        public static void SetNativeObject(GObject node, string path)
        {
            if (node.asGraph.displayObject == null)
            {
                var obj = ResourcesManager.LoadObject<GameObject>(path);
                var tem = CopyPrefab(obj);
                node.asGraph.SetNativeObject(new GoWrapper(tem));
            }
        }

        public static string GetTime(long time)
        {
            DateTime s = new DateTime(1970, 1, 1);
            s = s.AddSeconds(time);
            s = TimeZone.CurrentTimeZone.ToLocalTime(s);
            return s.ToString("yyyy-MM-dd HH:mm:ss");
        }

        public static bool IsDoubleClick(EventContext context)
        {
            return context.inputEvent.isDoubleClick;
        }

        private static readonly string _fileDir = Application.persistentDataPath + "/UserData/";

        /// <summary>
        /// 写入本地数据
        /// </summary>
        /// <param name="data"></param>

        public static void SaveLocalFile(string key, string data)
        {
            if (!Directory.Exists(_fileDir))
            {
                Directory.CreateDirectory(_fileDir);
            }
            File.WriteAllText(_fileDir + key, data);
        }


        /// <summary>
        /// 读取本地数据
        /// </summary>
        /// <returns></returns>
        public static string LoadLocalFile(string key)
        {
            var file = _fileDir + key;
            if (!File.Exists(file)) return null;
            return File.ReadAllText(file);
        }

        /// <summary>
        /// 读取本地数据
        /// </summary>
        public static void ClearLocalFile(long uid)
        {
            var file = _fileDir + uid;
            if (File.Exists(file))
            {
                File.Delete(file);
            }
        }

        /// <summary>
        /// 保存图片到本地，并设置尺寸
        /// </summary>
        /// <param name="path">保存路径</param>
        /// <param name="texture">图层</param>
        /// <param name="heigth">高度</param>
        /// <param name="width">宽度</param>
        public static Texture2D SaveScaledPicture(string path, Texture2D texture, int heigth, int width)
        {
            Texture2D scaled_pic = new Texture2D(width, heigth, texture.format, false);
            for (int i = 0; i < scaled_pic.height; ++i)
            {
                for (int j = 0; j < scaled_pic.width; ++j)
                {
                    Color newColor = texture.GetPixelBilinear((float)j / (float)scaled_pic.width, (float)i / (float)scaled_pic.height);
                    scaled_pic.SetPixel(j, i, newColor);
                }
            }
            scaled_pic.Apply();
            var data = scaled_pic.EncodeToJPG(60);
            File.WriteAllBytes(path, data);
            return scaled_pic;
        }

        public static void LocalAddress(LuaInterface.LuaFunction callback)
        {
            GPSAddress.LocalAddress(callback);
        }


        static public bool IsGPSEnable()
        {
            return GPSAddress.IsGPSEnable();
        }

        public static void DownloadFile(string url, string path, LuaInterface.LuaFunction callback)
        {
            BestHTTP.HTTPManager.SendRequest(url, (request, response) =>
            {
                if (request.State == BestHTTP.HTTPRequestStates.Finished && request.Response.IsSuccess)
                {
                    var data = request.Response.Data;
                    File.WriteAllBytes(path, data);
                    callback.Call();
                    callback.Dispose();
                }
            });
        }

        public static string TextOmit(string str, int num) 
        {
            StringInfo info = new StringInfo(str);

            if (info.LengthInTextElements > num)
            {
                return info.SubstringByTextElements(0, 6) + "...";
            }

            return str;
        }
    }
}