using DS.Module.Core;
using DS.Module.SqlSugar;
using DS.Module.UserModule;
using DS.WMS.Core.TaskPlat.Dtos;
using DS.WMS.Core.TaskPlat.Entity;
using DS.WMS.Core.TaskPlat.Interface;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Logging;
using SqlSugar;
using System.Linq.Expressions;
using System.Runtime.InteropServices;
using System.Text;
using System.Web;

namespace DS.WMS.Core.TaskPlat.Method
{
    /// <summary>
    /// 任务模块业务类的基类，封装了一些常用的方法
    /// </summary>
    public class TaskManageBaseService<T> : ITaskManageBaseService
    {
        protected readonly IUser user;
        protected readonly ILogger<T> logger;
        protected readonly ISaasDbService saasDbService;
        protected readonly IServiceProvider serviceProvider;
        protected readonly IWebHostEnvironment environment;

        public TaskManageBaseService(IUser user,
                                     ILogger<T> logger,
                                     ISaasDbService saasDbService,
                                     IServiceProvider serviceProvider,
                                     IWebHostEnvironment environment)
        {
            this.user = user;
            this.logger = logger;
            this.saasDbService = saasDbService;
            this.serviceProvider = serviceProvider;
            this.environment = environment;
        }

        /// <summary>
        /// 更新任务主表状态
        /// </summary>
        /// <param name="taskIds">任务主键数组</param>
        /// <param name="columns">需要更新状态的列</param>
        public async Task SetTaskStatus(long[] taskIds, params Expression<Func<TaskBaseInfo, bool>>[] columns)
        {
            SqlSugarScopeProvider tenantDb = saasDbService.GetBizDbScopeById(user.TenantId);

            var updateable = tenantDb.Updateable<TaskBaseInfo>();
            foreach (var item in columns)
            {
                updateable.SetColumns(item);
            }
            updateable.SetColumns(x => x.UpdateBy == long.Parse(user.UserId))
                      .SetColumns(x => x.UpdateTime == DateTime.Now)
                      .SetColumns(x => x.UpdateUserName == user.UserName);

            await updateable.Where(x => taskIds.Contains(x.Id))
                            .ExecuteCommandAsync();

            // 后面可以记录日志
        }

        /// <summary>
        /// 设置任务处理人
        /// </summary>
        /// <param name="taskIds">任务主键数组</param>
        /// <param name="userInfo">人员信息列表</param>
        public async Task SetTaskOwner(long[] taskIds, List<RecvUserInfo> userInfo)
        {
            SqlSugarScopeProvider tenantDb = saasDbService.GetBizDbScopeById(user.TenantId);
            try
            {
                await tenantDb.Ado.BeginTranAsync();

                await tenantDb.Deleteable<TaskBaseAllocation>(x => taskIds.Contains(x.TaskId)).ExecuteCommandAsync();

                List<TaskBaseAllocation> allocationList = new();
                foreach (var item in taskIds)
                {
                    allocationList.AddRange(userInfo.Select(x => new TaskBaseAllocation
                    {
                        TaskId = item,
                        UserId = x.RecvUserId,
                        UserName = x.RecvUserName
                    }));
                }
                await tenantDb.Insertable(allocationList).ExecuteCommandAsync();

                // 后面可以记录日志

                await tenantDb.Ado.CommitTranAsync();
            }
            catch (Exception)
            {
                await tenantDb.Ado.RollbackTranAsync();
                throw;
            }
        }

        #region Tools

        /// <summary>
        /// 保存文件并返回文件完整路径
        /// </summary>
        /// <param name="fileDictKey">追加文件夹</param>
        /// <param name="fileBytes">文件二进制流</param>
        /// <param name="batchNo">批次号</param>
        /// <param name="fileNameNoSuffix">无拓展名的文件名</param>
        /// <param name="printFileType">文件类型</param>
        /// <param name="attachFileType">附件类型 bcfiles-BC文件 sofile-订舱附件</param>
        /// <returns>返回文件完整路径</returns>
        protected async Task<string> SaveFile(string fileDictKey, byte[] fileBytes, string batchNo, string fileNameNoSuffix,
            PrintFileTypeEnum printFileType, string attachFileType = "sofiles")
        {
            var basePath = AppSetting.app(new string[] { "FileSettings", "BasePath" });
            var relativePath = AppSetting.app(new string[] { "FileSettings", "RelativePath" });

            if (!string.IsNullOrWhiteSpace(attachFileType))
                relativePath += $"\\{attachFileType}";

            if (!string.IsNullOrWhiteSpace(fileDictKey))
                relativePath += $"\\{fileDictKey}";

            string? dirAbs;
            if (string.IsNullOrEmpty(basePath))
            {
                dirAbs = Path.Combine(environment.WebRootPath ?? "", relativePath);
            }
            else
            {
                dirAbs = Path.Combine(basePath, relativePath);
            }

            if (!Directory.Exists(dirAbs))
                Directory.CreateDirectory(dirAbs);

            var fileType = string.Empty;
            if (printFileType == PrintFileTypeEnum.PDF)
            {
                fileType = ".pdf";
            }
            else if (printFileType == PrintFileTypeEnum.XLSX)
            {
                fileType = ".xlsx";
            }
            else if (printFileType == PrintFileTypeEnum.DOCX)
            {
                fileType = ".docx";
            }
            else if (printFileType == PrintFileTypeEnum.XLS)
            {
                fileType = ".xls";
            }
            else if (printFileType == PrintFileTypeEnum.DOC)
            {
                fileType = ".doc";
            }

            string curFileName = fileNameNoSuffix;

            //var id = SnowFlakeSingle.Instance.NextId();
            var fileSaveName = $"{curFileName}{fileType}";

            string fileRelaPath = Path.Combine(relativePath, fileSaveName);
            string fileAbsPath = Path.Combine(dirAbs, fileSaveName);

            if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                relativePath = relativePath.Replace("\\", "/");
                fileRelaPath = fileRelaPath.Replace("\\", "/");
                fileAbsPath = fileAbsPath.Replace("\\", "/");
            }

            //logger.LogInformation("批次={no} 生成文件保存路径完成 路由={filePath} 服务器系统={system}", batchNo, fileRelaPath, RuntimeInformation.OSDescription);

            await File.WriteAllBytesAsync(fileAbsPath, fileBytes);

            //string bookFilePath;
            //if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            //{
            //    bookFilePath = System.Text.RegularExpressions.Regex.Match(fileAbsPath, relativePath.Replace("/", "\\/") + ".*").Value;
            //}
            //else
            //{
            //    bookFilePath = System.Text.RegularExpressions.Regex.Match(fileAbsPath, relativePath.Replace("\\", "\\\\") + ".*").Value;
            //}

            return fileAbsPath;
            //return bookFilePath;
        }

        /// <summary>
        /// 获取文件类型
        /// </summary>
        /// <param name="fileName">文件完成路径</param>
        /// <returns>返回文件类型枚举</returns>
        protected PrintFileTypeEnum GetFileType(string fileName)
        {
            PrintFileTypeEnum fileType = PrintFileTypeEnum.PDF;

            switch (Path.GetExtension(fileName).ToLower())
            {
                case ".pdf":
                    fileType = PrintFileTypeEnum.PDF;
                    break;
                case ".xlsx":
                    fileType = PrintFileTypeEnum.XLSX;
                    break;
                case ".docx":
                    fileType = PrintFileTypeEnum.DOCX;
                    break;
                case ".xls":
                    fileType = PrintFileTypeEnum.XLS;
                    break;
                case ".doc":
                    fileType = PrintFileTypeEnum.DOC;
                    break;
            }

            return fileType;
        }
        #endregion

        /// <summary>
        /// 根据任务ID获取附件信息
        /// </summary>
        /// <param name="taskId">任务Id</param>
        /// <param name="fileCategory">附件分类代码</param>
        public async Task<(string fileFullPath, string fileName)> GetTaskFileInfo(long taskId, string fileCategory)
        {
            var tenantDb = saasDbService.GetBizDbScopeById(user.TenantId);

            var bcTaskInfo = await tenantDb.Queryable<TaskBaseInfo>().Where(u => u.Id == taskId).FirstAsync();
            if (bcTaskInfo == null)
            {
                throw new Exception(MultiLanguageConst.GetDescription(nameof(MultiLanguageConst.DataQueryNoData)));
            }

            TaskFileCategoryEnum fileCategoryEnum = TaskFileCategoryEnum.NONE;

            System.Enum.TryParse(fileCategory, out fileCategoryEnum);

            if (fileCategoryEnum == TaskFileCategoryEnum.NONE)
            {
                // 附件分类代码错误，请提供正确的分类代码
                throw new Exception(MultiLanguageConst.GetDescription(nameof(MultiLanguageConst.TaskFileCategoryError)));
            }

            string name = fileCategoryEnum.ToString();

            var fileInfo = await tenantDb.Queryable<TaskFileInfo>().Where(u => u.TASK_PKID == taskId && u.FILE_CATEGORY == name).OrderByDescending(x => x.Id).FirstAsync();

            if (fileInfo == null)
            {
                // 附件分类代码错误，请提供正确的分类代码
                throw new Exception(
                    string.Format(MultiLanguageConst.GetDescription(nameof(MultiLanguageConst.TaskFileCategoryError)), taskId)
                );
            }
            var basePath = AppSetting.app(new string[] { "FileSettings", "BasePath" });

            string fileFullPath;
            if (string.IsNullOrEmpty(basePath))
            {
                fileFullPath = Path.Combine(environment.WebRootPath ?? "", fileInfo.FILE_PATH);
            }
            else
            {
                fileFullPath = Path.Combine(basePath, fileInfo.FILE_PATH);

            }
            if (!File.Exists(fileFullPath))
            {
                //任务主键{0} 附件下载请求失败，请确认文件是否存在
                throw new Exception(
                    string.Format(MultiLanguageConst.GetDescription(nameof(MultiLanguageConst.TaskFileNotExists)), taskId)
                );
            }

            var fileName = HttpUtility.UrlEncode(fileInfo.FILE_NAME, Encoding.GetEncoding("UTF-8"))!;
            return (fileFullPath, fileName);
            //return (new FileStream(fileFullPath, FileMode.Open), fileName);
        }
    }
}