MES / IOT · Files

using Hh.Mes.Common.Infrastructure;
using Hh.Mes.Common.log;
using Hh.Mes.Common.Request;
using Hh.Mes.POJO.Entity;
using Hh.Mes.POJO.Response;
using Hh.Mes.Service.Repository;
using SqlSugar;
using System;
using System.Linq;
using System.Linq.Expressions;
using System.Data;
using System.IO;

using Hh.Mes.Pojo.System;

using System.Text;
using Org.BouncyCastle.Crypto;

using System.Collections.Generic;

namespace Hh.Mes.Service.Base
{
    public class SysFileService : RepositorySqlSugar<sys_File>
    {
        /// <summary>

        /// 文件存储路径  new JoinQueryInfos(JoinType.Left, file.targetId == vw.code)

        /// </summary>
        private readonly string FileNamePath = "\\wwwroot\\Document";

        #region 列表、树结构数据

        public dynamic Load(PageReq pageReq, sys_File entity)
        {
            return ExceptionsHelp.Instance.ExecuteT(() =>
            {
                var result = new Response();
                var expression = LinqWhere(entity);
                //先组合查询表达式

                var query = Context.Queryable<sys_File, VW_CurrentUserDevice>((x,vw) =>  new JoinQueryInfos(JoinType.Left, x.targetId == vw.equipmentCode)  )
                                   .Where(expression)
                                   .Select((x, vw) => new
                                   {
                                       x.fileName,
                                       x.id,
                                       x.targetId,
                                       x.host,

                                       x.url,
                                       x.size,
                                       x.suffix,
                                       x.remark,

                                       x.createBy,
                                       x.createTime
                                   });

                //Exel为ture就不分页，因为导出的话是全部导出
                if (pageReq != null)
                {
                    int total = 0;

                    var list = query .ToOffsetPage(pageReq.page, pageReq.limit, ref total);

                    result.Result = list;

                    result.Count = total;
                }
                else
                {
                    result.Result = query.ToList();

                    result.Count = result.Result.Count;

                }
                return result;
            }, catchRetrunValue: "list");
        }

        public Expression<Func<sys_File, VW_CurrentUserDevice, bool>> LinqWhere(sys_File model)

        {
            try
            {

                var exp = Expressionable.Create<sys_File, VW_CurrentUserDevice>();

                //数据过滤条件

                //根节点
                if (!string.IsNullOrWhiteSpace(model.targetTableName) && model.targetTableName != "root")

                {

                    exp.And((x, vw) => x.targetTableName.Contains(model.targetTableName));

                }
                if (!string.IsNullOrWhiteSpace(model.fileCode))
                {

                    exp.And((x, vw) => x.fileCode.Contains(model.fileCode));

                }
                if (!string.IsNullOrWhiteSpace(model.host))
                {

                    exp.And((x, vw) => x.host.Contains(model.host));

                }

                //根节点

                if (!string.IsNullOrEmpty(model.targetId) && model.targetId != "r-1")

                {

                    exp.And((x, vw) => x.targetId.Equals(model.targetId));

                }
                if (!string.IsNullOrWhiteSpace(model.fileName))
                {

                    exp.And((x, vw) => x.fileName.Contains(model.fileName));

                }

                //读取当前用户下面所有的设备
                string currentUser = sysWebUser.Account;

                if (currentUser != SystemVariable.DefaultCreated) exp.And((x, vw) => vw.userAccount == currentUser);

                return exp.ToExpression();//拼接表达式
            }
            catch (Exception ex)
            {
                throw new Exception($"{ex.Message}");
            }
        }

        /// <summary>

        /// /左侧列表 设备类型+设备

        /// </summary>
        public DataTable GetTreeList()
        {
            return ExceptionsHelp.Instance.ExecuteT(() =>
            {

                var stringBuilder = new StringBuilder();

                string equipmentTypeCodes = string.Join("', '", SystemVariable.IotNotContainDevice);

                string user = sysWebUser.Account;

                string userWhere = "";
                if (user != SystemVariable.DefaultCreated) userWhere = $" and t1.userAccount='{user}'";

                stringBuilder.AppendLine($@" select id = newid(),

                                                    name = '根节点',
                                                    keys = 'r-1',
                                                    parentId =  '0',
                                                    isok = '',

                                                    code = 'root',
		                                            projectKeys=null

                                            union all
                                            select id = newid(),

                                                   name = Name, 
                                                   keys = e.code,
                                                   parentId = 'r-1',
                                                   isok = 'true',
                                                   code='eqType',
		                                           projectKeys=null

                                            from base_equipment_type e

                                            where e.code not in ('{equipmentTypeCodes}')
                                            union all
                                            select id = newid(),
                                                    name = e.equipmentName +' '+e.otherCode,
                                                    keys=e.otherCode,
                                                    parentId =( select base_equipment_type.code  from base_equipment_type  where code=e.equipmentTypeCode  ),
                                                    isok = 'true',
                                                    code='eq',
								                    e.projectKeys
                                            from (			   
					   					        select   t2.projectKeys ,t2.equipmentName ,t2.otherCode   ,t2.equipmentTypeCode 
												from sys_user_project_rel t1
								                left join base_equipment t2 on t1.clientKeys=t2.projectKeys
												where   t2.equipmentTypeCode not in ('{equipmentTypeCodes}')  {userWhere}
											)e");

                var dt = base.Context.Ado.GetDataTableAsync(stringBuilder.ToString()).Result;

                return dt == null || dt.Rows.Count == 0 ? null : dt;
            });

        } 
        #endregion


        public dynamic DelByIds(int[] ids)
        {
            return ExceptionsHelp.Instance.ExecuteT(() =>
            {
                var response = new Response();
                var docs = Context.Queryable<sys_File>().Where(x => ids.Contains(x.id)).ToList();
                docs.ForEach((item) =>
                {
                    DeleteDocument(item.url);
                });
                Context.Deleteable<sys_File>(t => ids.Contains(t.id)).ExecuteCommand();
                return response;
            });
        }

        /// <summary>
        /// 删除服务器内文件
        /// </summary>
        /// <param name="fileName"></param>
        private void DeleteDocument(string fileName)
        {
            string path = $"{Directory.GetCurrentDirectory()}{FileNamePath}\\{fileName}";
            if (File.Exists(path))
            {
                File.Delete(path);
            }
        }

        public dynamic AddOrUpdate(sys_File entity)
        {
            return ExceptionsHelp.Instance.ExecuteT<dynamic>(() =>
            {
                var response = new Response();
                string fileEmptyErrorMessage = "上传文件数据时，文件不能为空！";

                if (entity.excelfile == null || entity.excelfile.Count == 0)
                {
                    return response.ResponseError(fileEmptyErrorMessage);
                }

                if (string.IsNullOrEmpty(entity.targetId))
                {
                    return response.ResponseError("适用的设备Code不能为空！");
                }

                foreach (var file in entity.excelfile)
                {
                    if (file == null || file.Length == 0)
                    {
                        return response.ResponseError(fileEmptyErrorMessage);
                    }

                    switch (entity.targetTableName)
                    {
                        case "eqType":
                            entity.targetTableName = "base_equipment_type";
                            break;
                        case "eq":
                            entity.targetTableName = "base_equipment";
                            break;
                    }

                    var uploadPath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "Document");
                    if (!Directory.Exists(uploadPath))
                    {
                        Directory.CreateDirectory(uploadPath);
                    }

                    var suffix = Path.GetExtension(file.FileName);
                    var fileName = Path.GetFileNameWithoutExtension(file.FileName);
                    var newFileName = $"{fileName}_{DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss")}{suffix}";

                    long size;
                    using (var fs = File.Create(Path.Combine(uploadPath, newFileName)))
                    {
                        file.CopyTo(fs);
                        size = fs.Length / 1024;
                    }

                    entity.size = size > 1024 ? $"{size / 1024:N1}M" : $"{size:N1}Kb";
                    entity.suffix = suffix;
                    entity.fileName = fileName;
                    entity.url = newFileName;
                    entity.createBy = sysWebUser.Account;
                    entity.createTime = DateTime.Now;

                    Context.Insertable(entity).ExecuteCommand();
                }
                return response;
            });

        }
    }
}