using UnityEngine;
using UnityEngine.Networking;
using System;
using System.Collections;
using Google.Protobuf;
//using Protobuf;
using System.IO;
using GFGGame.Launcher;

namespace GFGGame
{
    class HttpProtobufTool : SingletonMonoBase<HttpProtobufTool>
    {
        
        //jsonString 为json字符串，post提交的数据包为json
        public void Post(string prefixUrl, string methodName, byte[] bodyRaw, Action<string> callback)
        {
            StartCoroutine(PostRequest(prefixUrl, methodName, bodyRaw, callback));
        }

        public IEnumerator PostRequest(string prefixUrl, string methodName, byte[] bodyRaw, Action<string> callback)
        {
            string url = prefixUrl + methodName;
            Debug.Log(string.Format("post url:{0}", url));
            using (UnityWebRequest webRequest = new UnityWebRequest(url, "POST"))
            {
                webRequest.uploadHandler = (UploadHandler)new UploadHandlerRaw(bodyRaw);
                webRequest.downloadHandler = (DownloadHandler)new DownloadHandlerBuffer();
                webRequest.timeout = LauncherConfig.HTTP_POST_TIME_OUT;
                //http header 的内容
                webRequest.SetRequestHeader("Content-Type", "application/octet-stream");
                // webRequest.timeout;
                yield return webRequest.SendWebRequest();
                ResultHandler(webRequest, callback, "", () =>
                {
                    Post(prefixUrl, methodName, bodyRaw, callback);
                });
            }
        }

        public void ResultHandler(UnityWebRequest webRequest, Action<string> callback, string tag, Action retryCall)
        {
            string paramCallback = null;
            if (webRequest.result == UnityWebRequest.Result.ProtocolError || webRequest.result == UnityWebRequest.Result.ConnectionError)
            {
                Debug.LogError(webRequest.error + "\n" + webRequest.downloadHandler.text);
                Alert.Show("连接服务器失败：\n请检查网络和服务器状态")
                .SetRightButton(true, "重试", (object data) =>
                {
                    retryCall();
                });
            }
            else
            {
                byte[] data = webRequest.downloadHandler.data;
                //StoreRequest storeRequest = StoreRequest.Parser.ParseFrom(data);

                //Debug.Log("from server " + storeRequest.ToString() + "\ntag = " + tag);
                paramCallback = webRequest.downloadHandler.text;
                callback?.Invoke(paramCallback);
            }
        }
        
    }
}