using System;
using System.ComponentModel;
using System.IO;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
using Cysharp.Threading.Tasks;
using Gameplay;
using UnityEngine;
using UnityEngine.Networking;

public partial class SROptions
{
    private readonly double timeOutTick = 10f; // 10秒没下完超时
    /// <summary>
    /// 最大间隔
    /// </summary>
    private const float MaxIntervals = 600f;
    private float intervals = 600f;
    private float timer = 0f;
    /// <summary>
    /// 减少最大间隔时间次数
    /// </summary>
    private int count = 0;
    /// <summary>
    /// 总下载次数
    /// </summary>
    private int total;

    private StreamWriter writerUnityWebRequest;
    private StreamWriter writerHttpClient;

    private bool isDownload = false;
    private string downLoadUrl = "http://1.14.62.163/Build/Dev/Android/0.1.0/BuildReport_DefaultPackage_638683185541237500.json";

    [Category("下载测试"), DisplayName("开始下载")]
    public async void BeginDownload()
    {
#if UNITY_EDITOR
        string fileUnityWebRequestPath = Path.Combine(Application.streamingAssetsPath, "UnityWebRequestTest.txt");
        string fileHttpClientPath = Path.Combine(Application.streamingAssetsPath, "HttpClientTest.txt");
#else
        string fileUnityWebRequestPath = Path.Combine(Application.persistentDataPath, "UnityWebRequestTest.txt");
        string fileHttpClientPath = Path.Combine(Application.persistentDataPath, "HttpClientTest.txt");
#endif
        writerUnityWebRequest = File.CreateText(fileUnityWebRequestPath);
        writerHttpClient = File.CreateText(fileHttpClientPath);

        timer = intervals;
        total = 0;
        isDownload = true;

        while (isDownload)
        {
            if (timer >= intervals)
            {
                timer -= intervals;
                ++total;
                DownloadByUnityWebRequest();
                DownloadByUnityHttpClient();
            }
            await UniTask.WaitForSeconds(0.1f);
            timer += 0.1f;
        }
    }

    [Category("下载测试"), DisplayName("停止下载")]
    public void StopDownload()
    {
        isDownload = false;

        writerUnityWebRequest.Flush();
        writerUnityWebRequest.Close();

        writerHttpClient.Flush();
        writerHttpClient.Close();
    }

    /// <summary>
    /// 通过WebRequest下载
    /// </summary>
    private async void DownloadByUnityWebRequest()
    {
        string log = string.Empty;
        DateTime startTime = CommonUtils.GetCurTime(CommonUtils.E_TimeType.Local);
        DateTime endTime;
        using UnityWebRequest request = UnityWebRequest.Get(downLoadUrl);

        UnityWebRequestAsyncOperation asyncOperation = request.SendWebRequest();

        while (!asyncOperation.isDone)
        {
            await UniTask.DelayFrame(1);
            endTime = CommonUtils.GetCurTime(CommonUtils.E_TimeType.Local);
            TimeSpan timeSpan = endTime - startTime;
            if (timeSpan.TotalSeconds > timeOutTick)
            {
                request.Abort();
                log = $"{total}，类型：{nameof(UnityWebRequest)}, {timeOutTick}s超时，URL:{downLoadUrl}";
                Debug.Log(log);
                writerUnityWebRequest.WriteLine(log);
                writerUnityWebRequest.Flush();
                intervals = 20f;
                count = 3;
                return;
            }
        }

        endTime = CommonUtils.GetCurTime(CommonUtils.E_TimeType.Local);
        if (request.result != UnityWebRequest.Result.Success)
        {
            log = $"{total}，类型：{nameof(UnityWebRequest)}, 开始时间：{startTime}，完成时间：{endTime}，间隔：{(endTime - startTime).TotalSeconds}秒，是否成功：{false}，URL:{downLoadUrl}";
            Debug.Log(log);
            writerUnityWebRequest.WriteLine(log);
            writerUnityWebRequest.Flush();
            intervals = 20f;
            count = 3;
            return;
        }

        log = $"{total}，类型：{nameof(UnityWebRequest)}, 开始时间：{startTime}，完成时间：{endTime}，间隔：{(endTime - startTime).TotalSeconds}秒，是否成功：{true}，URL:{downLoadUrl}";
        Debug.Log(log);
        writerUnityWebRequest.WriteLine(log);
        writerUnityWebRequest.Flush();
        intervals = MaxIntervals;
        --count;
        if (count <= 0)
            intervals = MaxIntervals;
    }

    /// <summary>
    /// 通过HttpClient下载
    /// </summary>
    private async void DownloadByUnityHttpClient()
    {
        string log = string.Empty;
        DateTime startTime = CommonUtils.GetCurTime(CommonUtils.E_TimeType.Local);
        DateTime endTime;

        CancellationTokenSource cancellationTokenSource = new();
        using HttpClient client = new();
        Task<HttpResponseMessage> response = client.GetAsync(downLoadUrl, cancellationTokenSource.Token);

        while (!response.IsCompleted)
        {
            await UniTask.DelayFrame(1);
            endTime = CommonUtils.GetCurTime(CommonUtils.E_TimeType.Local);
            TimeSpan timeSpan = endTime - startTime;
            if (timeSpan.TotalSeconds > timeOutTick)
            {
                cancellationTokenSource.Cancel();
                log = $"{total}，类型：{nameof(HttpClient)}, {timeOutTick}s超时，URL:{downLoadUrl}";
                Debug.Log(log);
                writerHttpClient.WriteLine(log);
                writerHttpClient.Flush();
                intervals = 20f;
                count = 3;
                return;
            }
        }

        endTime = CommonUtils.GetCurTime(CommonUtils.E_TimeType.Local);
        if (!response.IsCompletedSuccessfully)
        {
            log = $"{total}，类型：{nameof(HttpClient)}, 开始时间：{startTime}，完成时间：{endTime}，间隔：{(endTime - startTime).TotalSeconds}秒，是否成功：{false}，URL:{downLoadUrl}";
            Debug.Log(log);
            writerHttpClient.WriteLine(log);
            writerHttpClient.Flush();
            intervals = 20f;
            count = 3;
            return;
        }

        log = $"{total}，类型：{nameof(HttpClient)}, 开始时间：{startTime}，完成时间：{endTime}，间隔：{(endTime - startTime).TotalSeconds}秒，是否成功：{true}，URL:{downLoadUrl}";
        Debug.Log(log);
        writerHttpClient.WriteLine(log);
        writerHttpClient.Flush();
        --count;
        if (count <= 0)
            intervals = MaxIntervals;
    }
}