using System.Collections;
using UnityEngine;
using UnityEngine.Networking;
using LitJson;
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;

public class HttpManager : MonoBehaviour
{
    private static HttpManager instance;
    public static HttpManager Instance
    {
        get
        {
            if (instance == null)
            {
                instance = GameObject.Find("Managers").GetComponent<HttpManager>();
            }
            return instance;
        }
    }

    private string m_BaseUrl = "https://yqkfq.yueqing.gov.cn/yq-api/xt-sps/parkTwin/select";

    private Dictionary<string, Texture2D> m_textureCache = new Dictionary<string, Texture2D>();

    private void Start()
    {
       
    }


    public Texture2D GetTexture(string path)
    {
        Texture2D tex = null;
        if (m_textureCache.TryGetValue(path, out tex))
        {
            return tex;
        }

        return null;
    }

    /// <summary>
    /// 获取天气
    /// </summary>
    /// <returns></returns>
    public IEnumerator GetWeather(Action<WeatherInfo> complete)
    {
        UnityWebRequest request = new UnityWebRequest("https://yqkfq.yueqing.gov.cn/yq-api/xt-system/common/getWeather", UnityWebRequest.kHttpVerbPOST);
        string json = "{\"location_type\": 1, \"lat\": 28.066292, \"lng\": 120.990018 }";
        DownloadHandler downloadHandler = new DownloadHandlerBuffer();
        request.downloadHandler = downloadHandler;
        request.SetRequestHeader("Content-Type", "application/json;charset=utf-8");
        byte[] bodyRaw = Encoding.UTF8.GetBytes(json);
        request.uploadHandler = new UploadHandlerRaw(bodyRaw);
        UnityWebRequestAsyncOperation op = request.SendWebRequest();
        while (!op.isDone)
        {
            yield return null;
        }
        if (string.IsNullOrEmpty(request.error))
        {
            //Debug.Log(request.downloadHandler.text);
            JsonData jsonData = JsonMapper.ToObject(request.downloadHandler.text);
            WeatherInfo weatherInfo = new WeatherInfo();

            weatherInfo.weatherType = jsonData["data"]["data"]["weather"]["weather"].ToString();
            weatherInfo.temp = weatherInfo.weatherType + " " + jsonData["data"]["data"]["weather"]["temp"].ToString() + "℃";
            //Debug.Log(request.downloadHandler.text);            
            //获取天气
            complete?.Invoke(weatherInfo);
        }
    }

    public IEnumerator LoadTextureAsync(string path, Action<Texture2D> ac)
    {
        Texture2D tex = GetTexture(path);

        if (tex == null)
        {
            UnityWebRequest req = UnityWebRequest.Get(path);

            UnityWebRequestAsyncOperation op = req.SendWebRequest();
            while (!op.isDone)
            {
                yield return null;
            }

            if (op.webRequest.isHttpError || op.webRequest.isNetworkError)
            {
                Debug.Log("Get web resource failed: " + path);
                Debug.Log("ErrorCode: " + op.webRequest.responseCode);
                yield break;
            }
            byte[] bytes = op.webRequest.downloadHandler.data;
            tex = new Texture2D(1, 1);
            if (!tex.LoadImage(bytes))
            {
                Debug.Log("LoadImage error: " + path);
                yield break;
            }
            if (!m_textureCache.ContainsKey(path))
            {
                m_textureCache.Add(path, tex);
            }
        }
        ac?.Invoke(tex);
    }



    /// <summary>
    /// 获取信息
    /// </summary>
    /// <param name="path"></param>
    /// <param name="callback"></param>
    /// <returns></returns>
    public IEnumerator LoadTextAsync(string path, System.Action<string> callback)
    {
        string result = null;
        UnityWebRequest req = UnityWebRequest.Get(path);
        UnityWebRequestAsyncOperation op = req.SendWebRequest();
        while (!op.isDone)
        {
            yield return null;
        }

        if (op.webRequest.isHttpError || op.webRequest.isNetworkError)
        {
            Debug.Log("Get web resource failed: " + path);
            Debug.Log("ErrorCode: " + op.webRequest.responseCode);
        }
        else
        {
            result = op.webRequest.downloadHandler.text;
        }
        //Debug.Log(path + ":" + result);
        if (callback != null)
        {
            //Debug.Log(path + ":" + result);
            callback(result);
        }
    }


    public async void Down(System.Action<string> callback)
    {
        string url = @"https://www.tianqi.com/pudong/";
        string s = await GetPage(url, null);
        if(callback != null)
        {
            callback?.Invoke(s);
        }
    }

    public async Task<string> GetPage(string url, string cookies)
    {
        return await Task.Run(() =>
        {
            try
            {
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

                request.Method = "GET";
                request.ContentType = "text/html;charset=UTF-8";

                request.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36";
                request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
                request.Headers.Add("Accept-Language", "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2");
                //request.Referer = $"https://{AppValue.Host}/";
                request.Headers.Add("Upgrade-Insecure-Requests", "1");
                request.KeepAlive = true;
                //request.Headers.Add("Cookie", cookies);

                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                Stream myResponseStream = response.GetResponseStream();
                StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
                string retString = myStreamReader.ReadToEnd();
                myStreamReader.Close();
                myResponseStream.Close();
                return retString;
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message + ex.StackTrace);
            }

            return null;
        });
    }

    /// <summary>
    /// 通过经纬度获取世界坐标
    /// </summary>
    /// <param name="lng"></param>
    /// <param name="lat"></param>
    /// 3576.8 -1553.5   120.976111  121.021983  lng  3576.8f - (now - 120.976111f) / 0.045872f *  5130.3f
    /// -3207.6 3428.3   28.091056   28.038424   lat  -3207.6f + (28.091056f - now) / 0.052632f * 6635.9f
    /// <returns></returns>
    private Vector3 GetVectByLnat(double lng, double lat)
    {
        double x = 3576.8f - (lng - 120.976111f) / 0.045872f * 5130.3f;
        double z = -3207.6f + (28.091056f - lat) / 0.052632f * 6635.9f;
        return new Vector3((float)x, 45, (float)z);
    }
}

public class WeatherInfo
{
    public string temp;
    public string weatherType;
}