using Newtonsoft.Json;
using SWS.Commons;
using SWS.Model;
using System;
using System.Collections.Generic;
using System.IO;
using System.Net.Http;
using System.Net;
using System.Threading;
using System.Threading.Tasks;

namespace SWS.Service
{
    public class IOModuleService : HttpService
    {
        public IOModuleService() : base()
        {

        }
        /// <summary>
        /// 获取所有的信号
        /// </summary>
        /// <param name="projId"></param>
        /// <param name="Assigned"></param>
        /// <returns></returns>
        public async Task<List<Model.TreeModel>> GetPanelTree()
        {

            var res = await this.GetAsync<List<Model.TreeModel>>($"IOModuleApi/GetPanelTree?projectId={GlobalObject.curProject?.ProjectId}");
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }
        /// <summary>
        /// 在IO分配界面，从左侧目录树中选择一个“端子排”后，进行查询
        /// </summary>
        /// <param name="StripID"></param>
        /// <param name="projId"></param>
        /// <param name="OnlySelf">false时，带上下面的通道和端子。true时，就是返回端子排自己</param>
        /// <returns></returns>
        public async Task<ec_PanelStrip> GetPanelStrip(string StripID, bool OnlySelf = false, bool HaveChannel = true)
        {
            var res = await this.GetAsync<ec_PanelStrip>($"IOModuleApi/GetPanelStrip?StripID={StripID}&projId={GlobalObject.curProject?.ProjectId}&OnlySelf={OnlySelf}&HaveChannel={HaveChannel}");
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }

        /// <summary>
        /// 保存端子排 通道 端子的信息（不管信号和接线关系）。
        /// 迁移通道也是这里。
        /// </summary>
        /// <param name="entity"></param>
        /// <param name="projId"></param>
        public async Task<object> SavePanelStrip(ec_PanelStrip entity)
        {
            var res = await this.PostBodyAsync<ec_PanelStrip, ec_PanelStrip>($"IOModuleApi/SavePanelStrip?projId={GlobalObject.curProject?.ProjectId}", entity);
            if (res.code == 200)
            {
                //return res.info;
                return null;
            }
            else
            {
                return res.info; // 返回错误信息
            }

        }

        /// <summary>
        /// 创建、修改 端子排和端子（一般是为非监测设备的端子排）
        /// </summary>
        /// <param name="entity"></param>
        /// <param name="projId"></param>
        public async Task<object> SavePanelStripNoChannel(ec_PanelStrip entity)
        {
            var res = await this.PostBodyAsync<ec_PanelStrip, ec_PanelStrip>($"IOModuleApi/SavePanelStripNoChannel?projId={GlobalObject.curProject?.ProjectId}", entity);
            if (res.code == 200)
            {
                //return res.info;
                return res.data;
            }
            else
            {
                return null; // 返回错误信息
            }

        }

        /// <summary>
        /// 查询所有的电缆
        /// </summary>
        /// <param name="projId"></param>
        /// <param name="homerun">true或false</param>
        /// <returns></returns>
        public async Task<List<ec_Cable>> GetCables(bool homerun = true)
        {
            var res = await this.GetAsync<List<ec_Cable>>($"IOModuleApi/GetCables?projId={GlobalObject.curProject?.ProjectId}&homerun={homerun}");
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }



        /// <summary>
        /// 根据ID拿。只查询ec panel表本身
        /// </summary>
        /// <param name="PanelID"></param>
        /// <param name="projId"></param>
        /// <returns></returns>
        public async Task<ec_Panel> GetPanel(string PanelID)
        {
            var res = await this.GetAsync<ec_Panel>($"IOModuleApi/GetPanel?PanelID={PanelID}&projId={GlobalObject.curProject?.ProjectId}");
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }
        /// <summary>
        /// 通过预设模式，批量创建端子排 通道 端子
        /// </summary>
        /// <param name="entity"></param>
        /// <param name="projId"></param>
        public async Task<object> CreatePanelStripByProfile(ec_PanelStrip entity)
        {
            var res = await this.PostBodyAsync<ec_PanelStrip, ec_PanelStrip>($"IOModuleApi/CreatePanelStripByProfile?projId={GlobalObject.curProject?.ProjectId}", entity);
            //if (res.code == 200)
            //{
            //    //return res.info;
            //    return null;
            //}
            //else
            //{
            //    return res.info; // 返回错误信息
            //}
            return res;
        }

        public async Task<string> DeletePanel(string PanelID)
        {
            var res = await this.PostBodyAsync<object,string>($"IOModuleApi/DeletePanel?PanelID={PanelID}&ProjectId={GlobalObject.curProject?.ProjectId}", null);
            if (res.code == 200)
            {
                return null;
            }
            else
            {
            }
            return res.info;
        }

        public async Task<string> DeletePanelStrip(string StripID)
        {
            var res = await this.PostBodyAsync<object, string>($"IOModuleApi/DeletePanelStrip?StripID={StripID}&ProjectId={GlobalObject.curProject?.ProjectId}", null);
            if (res.code == 200)
            {
                return null;
            }
            else
            {
            }
            return res.info;
        }

        /// <summary>
        /// 根据通道id来删除
        /// </summary>
        /// <param name="keyValue"></param>
        /// <param name="ProjectId"></param>
        public async Task<string> DeletePanelChannel(string ChannelID)
        {
            var res = await this.PostBodyAsync<object, string>($"IOModuleApi/DeletePanelChannel?ProjectId={GlobalObject.curProject?.ProjectId}&ChannelID={ChannelID}", null);
            if (res.code == 200)
            {
                return null;
            }
            else
            {
            }
            return res.info;
        }
        /// <summary>
        /// 根据电缆id来删除
        /// </summary>
        /// <param name="keyValue"></param>
        /// <param name="ProjectId"></param>
        public async Task<string> DeleteCableProfile(string CableID)
        {
            var res = await this.PostBodyAsync<object, string>($"IOModuleApi/DeleteCableProfile?CableID={CableID}&ProjectId={GlobalObject.curProject?.ProjectId}", null);
            if (res.code == 200)
            {
                return null;
            }
            else
            {
            }
            return res.info;
        }

        /// <summary>
        /// 根据EngineerDataID拿。包括set wire，以及from to信息
        /// </summary>
        /// <param name="EngineerDataID"></param>
        /// <param name="projId"></param>
        /// <param name="OnlySelf"></param>
        /// <param name="PreAssign"></param>
        /// <returns></returns>
        public async Task<ec_Cable> GetCableByEngID(string EngineerDataID,bool OnlySelf = false, bool PreAssign = false)
        {
            var res = await this.GetAsync<ec_Cable>($"IOModuleApi/GetCableByEngID?EngineerDataID={EngineerDataID}&projId={GlobalObject.curProject?.ProjectId}&OnlySelf{OnlySelf}&PreAssign{PreAssign}");
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }

        /// <summary>
        /// 新增或者修改。
        /// 新建相当于强行，因为正常流程是和engineerdata一起新建出来的。
        /// 改的话，只是改location和端子排数量这些。常规属性依旧通过objectTypeAPI去做
        /// </summary>
        /// <param name="entity"></param>
        /// <param name="projId"></param>
        /// <returns></returns>
        public async Task<string> SavePanel(ec_Panel entity)
        {
            var res = await this.PostBodyAsync<object, ec_Panel>($"IOModuleApi/SavePanel?projId={GlobalObject.curProject?.ProjectId}", entity);
            if (res.code == 200)
            {
                return null;
            }
            else
            {
            }
            return res.info;
        }

        /// <summary>
        /// 查询所有需要预分配的电缆
        /// </summary> 
        /// <param name="projId"></param> 
        /// <returns></returns>
        public async Task<List<ec_Cable>> GetCablePreAssignPreview()
        {
            var res = await this.GetAsync<List<ec_Cable>>($"IOModuleApi/GetCablePreAssignPreview?projId={GlobalObject.curProject?.ProjectId}");
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }

        /// <summary>
        /// GetCableByEngID先去判断这个cable是否已经有了IO Module这边的记录
        /// 电缆-端子连接，从图面上选择一个电缆对象
        /// </summary>
        /// <param name="projId"></param>
        public async Task<string> CreateCableByProfile(ec_Cable entity)
        {
            var res = await this.PostBodyAsync<ec_Cable, ec_Cable>($"IOModuleApi/CreateCableByProfile?projId={GlobalObject.curProject?.ProjectId}", entity);
            if (res.code == 200)
            {
                return null;
            }
            else
            {
            }
            return res.info;
        }

        public async Task<string> SaveCable(ec_Cable entity)
        {
            var res = await this.PostBodyAsync<ec_Cable, ec_Cable>($"IOModuleApi/SaveCable?projId={GlobalObject.curProject?.ProjectId}", entity);
            if (res.code == 200)
            {
                return null;
            }
            else
            {
            }
            return res.info;
        }
        /// <summary>
        /// 处理 接线关系，同时对cableset和wire的个别属性进行修改
        /// </summary> 
        /// <param name="projId"></param>
        /// <returns></returns>
        public async Task<List<ec_WireTerminal>> SaveConnections(Connections entity)
        {
            var res = await this.PostBodyAsync<List<ec_WireTerminal>, Connections>($"IOModuleApi/SaveConnections?projId={GlobalObject.curProject?.ProjectId}", entity);
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }

        public async Task<List<ec_Cable>> SaveCables(List<ec_Cable> entitys)
        {
            var res = await this.PostBodyAsync<List<ec_Cable>, List<ec_Cable>>($"IOModuleApi/SaveCables?projId={GlobalObject.curProject?.ProjectId}", entitys);
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }

        public async Task<object> AutoAssignCable2channel_step1(List<string> CableIds ,bool AcceptNearbyPanel)
        {
            var res = await this.PostBodyAsync<object,List<string>>($"IOModuleApi/AutoAssignCable2Channel_step1?projId={GlobalObject.curProject?.ProjectId}&AcceptNearbyPanel={AcceptNearbyPanel}", CableIds);
            //if (res.code == 200)
            //{
            //    return res.data;
            //}
            //else
            //{
            //}
            return res;
        }

        public async Task<List<ec_Cable>> AutoAssignCable2channel_step2()
        {
            var res = await this.PostBodyAsync<List<ec_Cable>, object>($"IOModuleApi/AutoAssignCable2Channel_step2?projId={GlobalObject.curProject?.ProjectId}", null);
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }

        public async Task<List<ec_Cable>> AutoAssignCable2channel_step3(List<ec_Cable> CableIds)
        {
            var res = await this.PostBodyAsync<List<ec_Cable>, object>($"IOModuleApi/AutoAssignCable2Channel_step3?projId={GlobalObject.curProject?.ProjectId}", CableIds);
            if (res.code == 200)
            {
                return res.data;
            }
            else
            {
            }
            return null;
        }

        /// <summary>
        /// 导出信号预分配结果
        /// </summary>
        /// <param name="savePath"></param>
        /// <param name="flg"></param>
        /// <param name="progress"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<string> AutoAssignCable2Channel_ResExport(
            string savePath,
            bool flg = true,
            IProgress<double> progress = null,
            CancellationToken cancellationToken = default)
        {
            try
            {
                var p = Path.GetDirectoryName(savePath);
                if (!Directory.Exists(p))
                    Directory.CreateDirectory(p);
                string url = $"IOModuleApi/AutoAssignCable2Channel_ResExport?projectId={GlobalObject.curProject?.ProjectId}&flg={flg}";
                //url = Uri.EscapeDataString(url);
                //url = Uri.UnescapeDataString(url);
                // 发送请求并获取响应
                using (var response = await GlobalObject.client.GetAsync(
                    url,
                    HttpCompletionOption.ResponseHeadersRead,
                    cancellationToken))
                {

                    if (response.StatusCode != HttpStatusCode.OK)
                    {
                        string errorMsg = $"服务器地址 [{url}] 文件下载失败, 返回HTTP代码：" + response.StatusCode;
                        LoggerHelper.Current.Error(errorMsg);
                        throw new HttpRequestException(errorMsg);
                    }
                    response.EnsureSuccessStatusCode(); // 确保响应成功
                    var result = await response.Content.ReadAsStringAsync();
                    learunHttpRes<object> resultObj = null;
                    try
                    {
                        resultObj = JsonConvert.DeserializeObject<learunHttpRes<object>>(result);
                    }
                    catch (JsonException)
                    {
                        //对下载文件来说，如果正常的话，这里反而是合理的，因为返回的就是stream的东西，不能被解析为learunHttpRes
                        await HandleStreamAsync();
                        return "";
                    }

                    if (resultObj.code != 200)
                    {
                        switch (resultObj.code)
                        {
                            case 400:
                            case 500:
                                return resultObj.info.ToString(); //业务错误，不是http本质错误                                
                            default:
                                string errorMsg = $"服务器地址 [{url}] Get失败, 返回自定义代码：" + resultObj.code;
                                LoggerHelper.Current.Error(errorMsg);
                                throw new HttpRequestException(errorMsg);
                        }

                    }
                    else
                    {
                        await HandleStreamAsync();
                        return "";

                    }

                    async Task HandleStreamAsync()
                    {
                        #region core
                        // 获取文件总大小（可能为 null）
                        var totalBytes = response.Content.Headers.ContentLength;

                        // 创建文件流
                        using (var contentStream = await response.Content.ReadAsStreamAsync())
                        using (var fileStream = new FileStream(
                            savePath,
                            FileMode.Create,
                            FileAccess.Write,
                            FileShare.None,
                            bufferSize: 8192,
                            useAsync: true))
                        {
                            var buffer = new byte[8192];
                            var totalBytesRead = 0L;
                            var bytesRead = 0;

                            // 分块读取并写入文件
                            while ((bytesRead = await contentStream.ReadAsync(
                                buffer,
                                0,
                                buffer.Length,
                                cancellationToken)) > 0)
                            {
                                await fileStream.WriteAsync(
                                    buffer,
                                    0,
                                    bytesRead,
                                    cancellationToken);

                                totalBytesRead += bytesRead;

                                // 报告进度（如果有总大小）
                                if (totalBytes.HasValue)
                                {
                                    var percent = (double)totalBytesRead / totalBytes.Value * 100;
                                    progress?.Report(percent);
                                }
                            }
                        }
                        #endregion
                    }

                }
            }
            catch (HttpRequestException ex)
            {
                return ex.Message;
                //throw new Exception($"下载请求失败: {ex.Message}");
            }
            catch (TaskCanceledException ex2)
            {
                return ex2.Message;
                // 取消操作时删除已下载的部分文件
                //if (File.Exists(savePath)) File.Delete(savePath);
                //throw;
            }
            catch (Exception ex3)
            {
                return ex3.Message;
                //throw new Exception($"下载失败: {ex.Message}");
            }


        }

        /// <summary>
        /// SaveConnections 专用
        /// </summary>
        public class Connections
        {
            public string ID { get; set; }
            public List<ec_WireTerminal> Conns { get; set; }
        }


    }
}