using BaseOUDAL;
using System.Data;
using System.Text;
using YLErp.Commons;
using YLErp.Helpers;

namespace YLErp.Modules.FinancialModule
{
    public class YYClientCodeMaintenanceService : YLBaseService
    {
        public YYClientCodeMaintenanceService(OptUserInfo userInfo) : base(userInfo)
        {
        }

        private ErpBaseContext basedb = new ErpBaseContext();

        public List<DictionaryItem> GetYonYouClientCodeFormCsv(string path, bool needDeleteAll)
        {

            var resultList = new List<string>();
            var originaltype = EncodingType.GetType(path, resultList);
            ChangeFileEncoding(path, originaltype);

            string Name;
            string ShortName;
            DictionaryItem item;
            int DicId = basedb.Dictionaries.Where(o => o.Name == "用友客商编码").Select(o => o.Id).FirstOrDefault();
            int indexNum = basedb.DictionaryItems.Where(o => o.DictId == DicId).Max(o => o.IndexNum);
            if (needDeleteAll)
            {
                indexNum = 0;
            }

            var items = new List<DictionaryItem>();

            int rowNum = 0;
            using (var fs = new FileStream(path, FileMode.Open, FileAccess.Read))
            {
                using (var sr = new StreamReader(fs, Encoding.UTF8))
                {
                    while (!sr.EndOfStream)
                    {
                        string line = sr.ReadLine();
                        if (rowNum == 0)
                        {
                            rowNum++;
                            continue;
                        }
                        rowNum++;

                        if (line == "")
                        {
                            continue;
                        }

                        string[] res = line.Split(new char[] { ',' }, StringSplitOptions.None);
                        if (res != null && res.Length > 0)
                        {
                            var isAllEmpty = true;
                            for (int i = 0; i < res.Length; i++)
                            {
                                if (!string.IsNullOrWhiteSpace(res[i]))
                                {
                                    isAllEmpty = false;
                                }
                            }

                            if (isAllEmpty)
                            {
                                continue;
                            }

                            if (res.Length < 19)
                            {
                                throw new ServiceException("导入文件列缺失！请检查后再导入！");
                            }
                        }

                        if (string.IsNullOrWhiteSpace(res[0]))
                        {
                            throw new ServiceException("第" + rowNum + "行名称未填写，导入失败");
                        }

                        if (string.IsNullOrWhiteSpace(res[0]))
                        {
                            throw new ServiceException("第" + rowNum + "行简称未填写，导入失败");
                        }

                        Name = res[0];
                        ShortName = res[1];

                        indexNum++;

                        item = new DictionaryItem()
                        {
                            Name = Name,
                            ShortName = ShortName,
                            DictId = DicId,
                            IndexNum = indexNum
                        };

                        items.Add(item);
                    }
                }

                if (items == null || items.Count == 0)
                {
                    throw new ServiceException("请确保上传文件数据不为空，导入失败");
                }
            }

            return items;
        }

        private void ChangeFileEncoding(string filename, Encoding encoding)
        {
            var fs = new FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.Read);
            byte[] flieByte = new byte[fs.Length];
            fs.Read(flieByte, 0, flieByte.Length);
            fs.Close();

            StreamWriter docWriter;
            var ec = Encoding.GetEncoding("UTF-8");
            docWriter = new StreamWriter(filename, false, ec);
            docWriter.Write(encoding.GetString(flieByte));
            docWriter.Close();
        }

        public List<DictionaryItem> GetYonYouClientCodeFromExcel(Stream stream, int userId, string userName, bool needDeleteAll)
        {
            var Clients = new ExcelHelper().ExcelToDataTable(stream, null, true);
            string Name = "";
            string ShortName = "";
            DictionaryItem item;
            int DicId = basedb.Dictionaries.Where(o => o.Name == "用友客商编码").Select(o => o.Id).FirstOrDefault();
            int indexNum = basedb.DictionaryItems.Where(o => o.DictId == DicId).Max(o => o.IndexNum);
            if (needDeleteAll)
            {
                indexNum = 0;
            }

            var items = new List<DictionaryItem>();
            var rowNum = 0;
            for (int i = 0; i < Clients.Rows.Count; i++)
            {
                rowNum = i + 2;
                for (int j = 0; j < Clients.Columns.Count; j++)
                {
                    switch (Clients.Columns[j].ColumnName)
                    {
                        case "名称":
                            if (string.IsNullOrWhiteSpace(Clients.Rows[i][j].ToString()))
                            {
                                throw new ServiceException("第" + rowNum + "行名称未填写，导入失败");
                            }

                            if (Clients.Rows[i][j].ToString().Length > 50)
                            {
                                throw new ServiceException("第" + rowNum + "行名称超长，导入失败");
                            }

                            Name = Clients.Rows[i][j].ToString();
                            break;
                        case "简称":
                            if (string.IsNullOrWhiteSpace(Clients.Rows[i][j].ToString()))
                            {
                                throw new ServiceException("第" + rowNum + "行简称未填写，导入失败");
                            }
                            if (Clients.Rows[i][j].ToString().Length > 50)
                            {
                                throw new ServiceException("第" + rowNum + "行简称超长，导入失败");
                            }
                            ShortName = Clients.Rows[i][j].ToString();
                            break;
                        default:
                            break;
                    }
                }

                if (!string.IsNullOrWhiteSpace(Name) && !string.IsNullOrWhiteSpace(ShortName))
                {
                    indexNum++;
                    item = new DictionaryItem()
                    {
                        Name = Name,
                        ShortName = ShortName,
                        DictId = DicId,
                        IndexNum = indexNum
                    };

                    items.Add(item);
                }

            }

            if (items == null || items.Count == 0)
            {
                throw new ServiceException("请确保上传文件数据不为空，导入失败");
            }
            return items;
        }

        public HandleResult DeleteAllYonYouClientCode()
        {
            int DicId = basedb.Dictionaries.Where(o => o.Name == "用友客商编码").Select(o => o.Id).FirstOrDefault();
            var AllYYClientCode = basedb.DictionaryItems.Where(o => o.DictId == DicId);
            basedb.DictionaryItems.RemoveRange(AllYYClientCode);

            return HandleResult.Success;
        }

        public HandleResult UploadYYClientCodeToDb(List<DictionaryItem> items)
        {
            if (items == null || items.Count == 0)
            {
                throw new ServiceException("上传数据为空，导入失败");
            }

            //选出有的 删除
            var names = items.Select(o => o.Name);
            var exists = basedb.DictionaryItems.Where(o => names.Contains(o.Name));
            basedb.DictionaryItems.RemoveRange(exists);

            basedb.DictionaryItems.AddRange(items);

            basedb.SaveChanges();
            return HandleResult.Success;
        }

        public byte[] ExportYYClientCode()
        {
            int DicId = basedb.Dictionaries.Where(o => o.Name == "用友客商编码").Select(o => o.Id).FirstOrDefault();
            var AllYYClientCode = basedb.DictionaryItems.Where(o => o.DictId == DicId);

            List<ExcelHelper.DataColumnModel> dc = new List<ExcelHelper.DataColumnModel>();

            dc.Add(new ExcelHelper.DataColumnModel("名称", "Name"));
            dc.Add(new ExcelHelper.DataColumnModel("简称", "ShortName"));

            new ExcelHelper().ListToExcel<DictionaryItem>(dc.ToArray(), AllYYClientCode.ToList(), "用友客商代码", true, out byte[] buffer);
            return buffer;
        }
    }
}