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;

namespace Hh.Mes.Service.Base
{
    public class SysFileService : RepositorySqlSugar<sys_File>
    {
        /// <summary>
        /// 文件存储路径
        /// </summary>
        private readonly string FileNamePath = "\\wwwroot\\Document";

        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, base_equipment_type>((x, y) => new JoinQueryInfos(JoinType.Left, x.targetId == y.code))

                                   .Where(expression);

                //Exel为ture就不分页，因为导出的话是全部导出
                if (pageReq != null)
                {
                    int total = 0;
                    result.Result = query.Select((x, y) => new
                    {
                        x.fileName,
                        x.id,
                        x.targetId,
                        x.host,

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

                        targetName = y.name,
                        x.createBy,
                        x.createTime
                    })
                    .ToOffsetPage(pageReq.page, pageReq.limit, ref total);
                    result.Count = total;
                }
                else
                {
                    result.Result = query.ToList();
                    result.Count = result.Result.Count();
                }
                return result;
            }, catchRetrunValue: "list");
        }

        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;
            });
        }


        public Expression<Func<sys_File, bool>> LinqWhere(sys_File model)
        {
            try
            {
                var exp = Expressionable.Create<sys_File>();
                //数据过滤条件

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

                {
                    exp.And(x => x.targetTableName.Contains(model.targetTableName));
                }
                if (!string.IsNullOrWhiteSpace(model.fileCode))
                {
                    exp.And(x => x.fileCode.Contains(model.fileCode));
                }
                if (!string.IsNullOrWhiteSpace(model.host))
                {
                    exp.And(x => x.host.Contains(model.host));
                }

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

                {
                    exp.And(x => x.targetId.Equals(model.targetId));
                }
                if (!string.IsNullOrWhiteSpace(model.fileName))
                {
                    exp.And(x => x.fileName.Contains(model.fileName));
                }
                return exp.ToExpression();//拼接表达式
            }
            catch (Exception ex)
            {
                throw new Exception($"{ex.Message}");
            }
        }


        /// <summary>
        /// /左侧列表 仓库+设备类型
        /// </summary>
        public DataTable GetTreeList()
        {
            return ExceptionsHelp.Instance.ExecuteT(() =>
            {
                string sql = $@"

                             select id = newid(),
                                    name = '根节点',
                                    keys = 'r-1',
                                    parentId =  '0',
                                    isok = '',
                                   code = 'root'

                            union all

                            select id = newid(),
                                  name = Name, 
                                  keys = e.code,
                                  parentId = 'r-1',
                                  isok = 'true',
                                  code='eqType'
                            from base_equipment_type e
						    union all
                            select id = newid(),
                                  name = e.equipmentName,
                                  keys=e.equipmentCode,
                                  parentId =( select base_equipment_type.code  from base_equipment_type  where code=e.equipmentTypeCode  ),
                                  isok = 'true',
                                  code='eq'
                           from base_equipment e";

                var dt = base.Context.Ado.GetDataTableAsync(sql).Result;
                return dt == null || dt.Rows.Count == 0 ? null : dt;
            });

        }
    }
}