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.id))
                                   .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();
                for (int i = 0; i < entity.excelfile.Count; i++)
                {
                    if (entity.targetId == 0)
                    {
                        return response.ResponseError("适用的设备类型不能为空！");
                    }
                    if (entity.excelfile[i] == null || entity.excelfile[i].Length == 0)
                    {
                        return response.ResponseError("上传文件数据时，文件不能为空！");
                    }
                    var UploadPath = $"{Directory.GetCurrentDirectory()}{FileNamePath}";
                    if (!Directory.Exists(UploadPath)) Directory.CreateDirectory(UploadPath);
                    var fileType = entity.excelfile[i]?.FileName.Split(".").LastOrDefault();
                    var fileName = entity.excelfile[i]?.FileName.Replace($".{fileType}", "");
                    if (string.IsNullOrWhiteSpace(fileName)) fileName = Guid.NewGuid().ToString().Substring(0, 8);
                    var newFileName = $"{fileName}_{Guid.NewGuid():N}.{fileType}";

                    long size;
                    using (var fs = File.Create($"{UploadPath}\\{newFileName}"))
                    {
                        entity.excelfile[i].CopyTo(fs);
                        fs.Flush();
                        size = fs.Length / 1024;
                    }
                    entity.size = size > 1024 ? $"{size / 1024:N1}M" : $"{size:N1}Kb";
                    entity.suffix = fileType;
                    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
                //if (!string.IsNullOrWhiteSpace(model.XXX)) exp.And(x => x.XXX.Contains(model.XXX));
                if (!string.IsNullOrWhiteSpace(model.targetTableName))
                {
                    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));
                }

                if (model.targetId != 0)
                {
                    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 = '1',
                              name = '根节点',
                              keys = '00000000-0000-0000-0000-000000000000',
                              parentId = null,
                              isok = '',
                              Code = ''
                            union all
                            select
                             id,
                             name = Name,
                             keys = Code,
                             parentId = '00000000-0000-0000-0000-000000000000',
                             isok = 'true',
                             e.Code
                            from base_equipment_type e";
                var dt = base.Context.Ado.GetDataTableAsync(sql).Result;
                return dt == null || dt.Rows.Count == 0 ? null : dt;
            });

        }
    }
}