using BestHTTP;
using System.IO;
using UnityEngine;

namespace Thousandto.Plugins.Common
{
    //图片同步工具类，提供给lua使用，防止lua直接访问bytes数据导致数据交换频繁
    public static class TexSyncUtils
    {
        //保存图片到文件
        public static void SaveTex(Texture2D tex, string filePath)
        {
            File.WriteAllBytes(filePath, tex.EncodeToJPG());
        }
        //从文件中读取图片，并且规范size
        public static Texture2D LoadTex(string filePath, int texWidth, int texHeight)
        {
            Texture2D result = null;
            var bytes = File.ReadAllBytes(filePath);
            var tex2d = new Texture2D(0, 0);
            tex2d.LoadImage(bytes);
            if (texWidth != tex2d.width || texHeight != tex2d.height)
            {
                result = new Texture2D(texWidth, texHeight);
                for (int x = 0; x < texWidth; ++x)
                {
                    for (int y = 0; y < texHeight; ++y)
                    {
                        result.SetPixel(x, y, tex2d.GetPixelBilinear((float)x / texWidth, (float)y / texHeight));
                    }
                }
            }
            else
            {
                result = tex2d;
            }
            result.Apply();
            return result;
        }
        //将图片文件增加到HTTPRequest的二进制数据中
        public static void AddTexToBinData(HTTPRequest request, Texture2D tex, string fieldName)
        {
            request.AddBinaryData(fieldName, tex.EncodeToJPG());
        }
        //将图片文件增加到HTTPRequest的上传流中
        public static void AddTexToUpStream(HTTPRequest request, Texture2D tex)
        {
            request.UploadStream = new MemoryStream(tex.EncodeToJPG());
        }
        //将HTTPResponse中的数据转换为图片并且存储到文件
        public static Texture2D CovertToTex(HTTPResponse res, string filePath)
        {
            //创建图片
            var tex2d = new Texture2D(0, 0);
            tex2d.LoadImage(res.Data);
            tex2d.Apply();
            //保存到文件
            File.WriteAllBytes(filePath, res.Data);
            return tex2d;
        }
        //创建目录
        public static void CreateDirectory(string path)
        {
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }
        }
        //设置连接超时时间
        public static void SetConnectTimeout(HTTPRequest request, float sec)
        {
            var span = new System.TimeSpan((long)(sec * 10000000));
            request.ConnectTimeout = span;
        }
        //设置访问超时时间
        public static void SetTimeout(HTTPRequest request, float sec)
        {
            var span = new System.TimeSpan((long)(sec * 10000000));
            request.Timeout = span;
        }
    }
}