using FrontendWebApi.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;
using Repository.BackendRepository.Interface;
using Repository.FrontendRepository.Interface;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace FrontendWebApi.ApiControllers
{
    public class HydroMeterController : MyBaseApiController<HydroMeterController>
    {
        private readonly IBackendRepository backendRepository;
        private readonly IFrontendRepository frontendRepository;

        public HydroMeterController(IBackendRepository backendRepository, IFrontendRepository frontendRepository)
        {
            this.backendRepository = backendRepository;
            this.frontendRepository = frontendRepository;
        }

        /// <summary>
        /// 電表
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost]
        [Route("api/ElectricList")]
        public async Task<ActionResult<ApiResult<List<HydroMeterOutput>>>> ElectricList([FromBody] HydroMeterInput input)
        {
            ApiResult<List<HydroMeterOutput>> apiResult = new ApiResult<List<HydroMeterOutput>>(jwt_str);
            if (!jwtlife)
            {
                apiResult.Code = "5000";
                return BadRequest(apiResult);
            }

            string tableType = "day week month year";
            if (input.building_tag == null)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "棟別沒有被選取";
                return BadRequest(apiResult);
            }
            else if (input.tableType == null || !tableType.Contains(input.tableType))
            {
                apiResult.Code = "9999";
                apiResult.Msg = "表單類別錯誤";
                return BadRequest(apiResult);
            }
            else if (input.floor_tag.Count == 0)
            {
                apiResult.Code = "0000";
                apiResult.Data = new List<HydroMeterOutput>() { };
                return Ok(apiResult);
            }

            try
            {
                var startTime = input.tableType == "day" || input.tableType == "week"
                                ? input.startTime + "-01"
                                : input.tableType == "month" || input.tableType == "year" ? input.startTime + "-01-01"
                                : null;
                var endTime = input.tableType == "day" || input.tableType == "week" 
                                ? input.startTime.Split("-")[0] + "-" + (Int32.Parse(input.startTime.Split("-")[1]) + 1).ToString().PadLeft(2, '0') + "-01"
                                : input.tableType == "month" ? (Int32.Parse(input.startTime.Split("-")[0]) + 1) + "-01-01"
                                : input.tableType == "year" ? input.endTime + "-01-01"
                                : null;
                string sqlWhere = "";
                string sqlGroup = "";
                string sqlAvgRawData = "";
                if (input.floor_tag.Count > 0)
                    sqlWhere = $@" and substring_index(substring_index(device_number, '_', 3), '_', -1) in @floor_tag ";

                if (input.tableType == "year")
                {
                    sqlGroup = $@" group by year(start_timestamp), year(end_timestamp), device_number ";
                    sqlAvgRawData = " round(avg(avg_rawdata), 2) as avg_rawdata, year(start_timestamp) as start_timestamp, year(end_timestamp) as end_timestamp ";
                }
                else
                    sqlAvgRawData = " round(avg_rawdata, 2) as avg_rawdata, start_timestamp, end_timestamp ";

                var table = input.tableType == "year" ? "archive_electric_meter_day" : "archive_electric_meter_" + input.tableType;
                var dateFormat = input.tableType == "day" || input.tableType == "week" ? "%Y-%m-%d" : input.tableType == "month" ? "%Y-%m" : input.tableType == "year" ? "%Y" : null;
                var sql = $@"set @i = -1;
                            select fd.device_number, aemm.avg_rawdata, DATE_FORMAT(fd.date, @dateFormat) as timestamp
                            from (
	                            select *
	                            from (
		                            (
			                            SELECT DATE(ADDDATE(@startTime, INTERVAL @i:=@i+1 {input.tableType})) AS date
                                        FROM {table}
			                            HAVING @i < TIMESTAMPDIFF({input.tableType}, @startTime, ADDDATE(@endTime, INTERVAL -1 DAY))
		                            ) d,
		                            (   
                                        select device_number
                                        from {table}
                                        where start_timestamp >= @startTime and end_timestamp < @endTime and point = 'KWH' and SUBSTRING_INDEX(device_number, '_', 1) = @building_tag 
                                        {sqlWhere} 
                                        group by device_number
                                    ) dn
	                            )
                            ) fd
                            left join (
	                            select device_number, {sqlAvgRawData}
		                            from {table}
 		                            where start_timestamp >= @startTime and end_timestamp < @endTime and point = 'KWH' and SUBSTRING_INDEX(device_number, '_', 1) = @building_tag
                                    {sqlWhere} {sqlGroup}
                            ) aemm on aemm.start_timestamp >= fd.date and aemm.end_timestamp < DATE_ADD(fd.date, INTERVAL +1 {input.tableType}) and aemm.device_number = fd.device_number
                            order by fd.device_number, fd.date";
                var rawData = await backendRepository.GetAllAsync<HydroMeterRawDataOutput>(sql,
                                new { startTime = startTime, endtime = endTime, building_tag = input.building_tag, floor_tag = input.floor_tag, dateFormat = dateFormat });
                var list = rawData
                            .GroupBy(x => new { building_tag = x.device_number.Split("_")[0], floor_tag = x.device_number.Split("_")[2], device_serial_tag = x.device_number.Split("_")[4] })
                            .Select(x => new HydroMeterOutput { building_tag = x.Key.building_tag, floor_tag = x.Key.floor_tag, device_serial_tag = x.Key.device_serial_tag })
                            .ToList();

                foreach (var l in list)
                {
                    l.rawData = new List<HydroMeterRawDataOutput>();
                    l.rawData.AddRange(
                        rawData.Where(x => x.device_number.Split("_")[0] == l.building_tag && x.device_number.Split("_")[2] == l.floor_tag && x.device_number.Split("_")[4] == l.device_serial_tag)
                    );
                    l.building_name = await backendRepository.GetOneAsync<string>("select full_name from building where building_tag = @building_tag and deleted = 0",
                                        new { building_tag = l.building_tag });
                    l.total = l.rawData.Sum(x => x.avg_rawdata).ToString();
                    l.price = input.price.HasValue 
                                ? (Math.Round(input.price.Value, 2)).ToString() 
                                : Math.Round((await backendRepository.GetOneAsync<decimal>("select system_value from variable where system_type = 'ElectricPrice' and deleted = 0")), 2).ToString();
                    l.total_price = Math.Round((Decimal.Parse(l.total) * Decimal.Parse(l.price)), 2).ToString();
                }

                apiResult.Code = "0000";
                apiResult.Data = list;
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                string json = System.Text.Json.JsonSerializer.Serialize(input);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + json);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }
            return apiResult;
        }

        /// <summary>
        /// 水表
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost]
        [Route("api/WaterList")]
        public async Task<ActionResult<ApiResult<List<HydroMeterOutput>>>> WaterList([FromBody] HydroMeterInput input)
        {
            ApiResult<List<HydroMeterOutput>> apiResult = new ApiResult<List<HydroMeterOutput>>(jwt_str);
            if (!jwtlife)
            {
                apiResult.Code = "5000";
                return BadRequest(apiResult);
            }

            string tableType = "day week month year";
            if (input.building_tag == null)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "棟別沒有被選取";
                return BadRequest(apiResult);
            }
            else if (input.tableType == null || !tableType.Contains(input.tableType))
            {
                apiResult.Code = "9999";
                apiResult.Msg = "表單類別錯誤";
                return BadRequest(apiResult);
            }
            else if (input.floor_tag.Count == 0)
            {
                apiResult.Code = "0000";
                apiResult.Data = new List<HydroMeterOutput>() { };
                return Ok(apiResult);
            }

            try
            {
                var startTime = input.tableType == "day" || input.tableType == "week"
                                ? input.startTime + "-01"
                                : input.tableType == "month" || input.tableType == "year" ? input.startTime + "-01-01"
                                : null;
                var endTime = input.tableType == "day" || input.tableType == "week"
                                ? input.startTime.Split("-")[0] + "-" + (Int32.Parse(input.startTime.Split("-")[1]) + 1).ToString().PadLeft(2, '0') + "-01"
                                : input.tableType == "month" ? (Int32.Parse(input.startTime.Split("-")[0]) + 1) + "-01-01"
                                : input.tableType == "year" ? input.endTime + "-01-01"
                                : null;
                string sqlWhere = "";
                string sqlGroup = "";
                string sqlAvgRawData = "";
                if (input.floor_tag.Count > 0)
                    sqlWhere = $@" and substring_index(substring_index(device_number, '_', 3), '_', -1) in @floor_tag ";

                if (input.tableType == "year")
                {
                    sqlGroup = $@" group by year(start_timestamp), year(end_timestamp), device_number ";
                    sqlAvgRawData = " round(avg(avg_rawdata), 2) as avg_rawdata, year(start_timestamp) as start_timestamp, year(end_timestamp) as end_timestamp ";
                }
                else
                    sqlAvgRawData = " round(avg_rawdata, 2) as avg_rawdata, start_timestamp, end_timestamp ";

                var table = input.tableType == "year" ? "archive_water_meter_day" : "archive_water_meter_" + input.tableType;
                var dateFormat = input.tableType == "day" || input.tableType == "week" ? "%Y-%m-%d" : input.tableType == "month" ? "%Y-%m" : input.tableType == "year" ? "%Y" : null;
                var sql = $@"set @i = -1;
                            select fd.device_number, aemm.avg_rawdata, DATE_FORMAT(fd.date, @dateFormat) as timestamp
                            from (
	                            select *
	                            from (
		                            (
			                            SELECT DATE(ADDDATE(@startTime, INTERVAL @i:=@i+1 {input.tableType})) AS date
                                        FROM {table}
			                            HAVING @i < TIMESTAMPDIFF({input.tableType}, @startTime, ADDDATE(@endTime, INTERVAL -1 DAY))
		                            ) d,
		                            (   
                                        select device_number
                                        from {table}
                                        where start_timestamp >= @startTime and end_timestamp < @endTime and point = 'RCV' and SUBSTRING_INDEX(device_number, '_', 1) = @building_tag 
                                        {sqlWhere} 
                                        group by device_number
                                    ) dn
	                            )
                            ) fd
                            left join (
	                            select device_number, {sqlAvgRawData}
		                            from {table}
 		                            where start_timestamp >= @startTime and end_timestamp < @endTime and point = 'RCV' and SUBSTRING_INDEX(device_number, '_', 1) = @building_tag
                                    {sqlWhere} {sqlGroup}
                            ) aemm on aemm.start_timestamp >= fd.date and aemm.end_timestamp < DATE_ADD(fd.date, INTERVAL +1 {input.tableType}) and aemm.device_number = fd.device_number
                            order by fd.device_number, fd.date";

                var rawData = await backendRepository.GetAllAsync<HydroMeterRawDataOutput>(sql,
                            new { startTime = startTime, endTime = endTime, building_tag = input.building_tag, floor_tag = input.floor_tag, dateFormat = dateFormat });
                var list = rawData
                            .GroupBy(x => new { building_tag = x.device_number.Split("_")[0], floor_tag = x.device_number.Split("_")[2], device_serial_tag = x.device_number.Split("_")[4] })
                            .Select(x => new HydroMeterOutput { building_tag = x.Key.building_tag, floor_tag = x.Key.floor_tag, device_serial_tag = x.Key.device_serial_tag })
                            .ToList();

                foreach (var l in list)
                {
                    l.rawData = new List<HydroMeterRawDataOutput>();
                    l.rawData.AddRange(
                        rawData.Where(x => x.device_number.Split("_")[0] == l.building_tag && x.device_number.Split("_")[2] == l.floor_tag && x.device_number.Split("_")[4] == l.device_serial_tag)
                    );
                    l.building_name = await backendRepository.GetOneAsync<string>("select full_name from building where building_tag = @building_tag and deleted = 0",
                                        new { building_tag = l.building_tag });
                    l.total = l.rawData.Sum(x => x.avg_rawdata).ToString();
                    l.price = input.price.HasValue
                                ? (Math.Round(input.price.Value, 2)).ToString()
                                : Math.Round((await backendRepository.GetOneAsync<decimal>("select system_value from variable where system_type = 'WaterPrice' and deleted = 0")), 2).ToString();
                    l.total_price = Math.Round((Decimal.Parse(l.total) * Decimal.Parse(l.price)), 2).ToString();
                }

                apiResult.Code = "0000";
                apiResult.Data = list;
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                string json = System.Text.Json.JsonSerializer.Serialize(input);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + json);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }
            return apiResult;
        }

        /// <summary>
        /// 水電表費用
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost]
        [Route("api/HydroMeterPrice")]
        public async Task<ActionResult<ApiResult<decimal>>> Price([FromBody] HydroMeterPriceInput input)
        {
            ApiResult<decimal> apiResult = new ApiResult<decimal>(jwt_str);
            if (!jwtlife)
            {
                apiResult.Code = "5000";
                return BadRequest(apiResult);
            }

            try
            {
                apiResult.Code = "0000";
                apiResult.Data = await backendRepository.GetOneAsync<decimal>($@"select system_value from variable where system_type = '{input.type}Price' and deleted = 0");
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                string json = System.Text.Json.JsonSerializer.Serialize(input);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + json);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }
            return apiResult;
        }

        [HttpPost]
        [Route("api/ExportElectricList")]
        public FileResult OpeExportExcelElec([FromBody] HydroMeterInput input)
        {
            var result = this.ElectricList(input).Result.Value.Data.ToList();

            var workbook = new XSSFWorkbook();
            #region excel設定
            IFont font12 = workbook.CreateFont();
            font12.FontName = "新細明體";
            font12.FontHeightInPoints = 12;
            ICellStyle style12 = workbook.CreateCellStyle();
            style12.SetFont(font12);
            style12.Alignment = HorizontalAlignment.Center;
            style12.VerticalAlignment = VerticalAlignment.Center;
            IFont font12Times = workbook.CreateFont();
            font12Times.FontName = "Times New Roman";
            font12Times.FontHeightInPoints = 12;
            IFont font18 = workbook.CreateFont();
            font18.FontName = "新細明體";
            font18.FontHeightInPoints = 18;
            font18.IsBold = true;
            ICellStyle styleTitle18 = workbook.CreateCellStyle();
            styleTitle18.SetFont(font18);
            styleTitle18.Alignment = HorizontalAlignment.Center;
            styleTitle18.VerticalAlignment = VerticalAlignment.Center;
            ICellStyle styleLeft12 = workbook.CreateCellStyle();
            styleLeft12.SetFont(font12);
            styleLeft12.Alignment = HorizontalAlignment.Left;
            styleLeft12.VerticalAlignment = VerticalAlignment.Center;
            ICellStyle styleLine12 = workbook.CreateCellStyle();
            styleLine12.SetFont(font12);
            styleLine12.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
            styleLine12.VerticalAlignment = VerticalAlignment.Center;
            styleLine12.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
            styleLine12.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
            styleLine12.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
            styleLine12.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
            ICellStyle stylein12 = workbook.CreateCellStyle();
            stylein12.SetFont(font12Times);
            stylein12.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Left;
            stylein12.VerticalAlignment = VerticalAlignment.Center;
            stylein12.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
            stylein12.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
            stylein12.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
            stylein12.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
            stylein12.WrapText = true;
            #endregion

            var sheet = workbook.CreateSheet("電表報表");
            int RowPosition = 0;
            if (result.Count > 0)
            {
                #region set cell
                IRow row = sheet.CreateRow(RowPosition);
                sheet.SetColumnWidth(0, 4 * 160 * 12);
                sheet.SetColumnWidth(1, 4 * 160 * 12);
                sheet.SetColumnWidth(2, 4 * 160 * 12);

                int i = 0;
                ICell cell = row.CreateCell(i++);
                cell.SetCellValue("東別");
                cell.CellStyle = styleLine12;
                cell = row.CreateCell(i++);
                cell.SetCellValue("樓層");
                cell.CellStyle = styleLine12;
                cell = row.CreateCell(i++);
                cell.SetCellValue("設備");
                cell.CellStyle = styleLine12;
            
                foreach (var rr in result.FirstOrDefault().rawData)
                {
                    cell = row.CreateCell(i++);
                    cell.SetCellValue(rr.timeStamp);
                    cell.CellStyle = styleLine12;
                }

                cell = row.CreateCell(i++);
                cell.SetCellValue("小計");
                cell.CellStyle = styleLine12;
                cell = row.CreateCell(i++);
                cell.SetCellValue("單價");
                cell.CellStyle = styleLine12;
                cell = row.CreateCell(i++);
                cell.SetCellValue("金額總計");
                cell.CellStyle = styleLine12;
                #endregion

                foreach (var r in result)
                {
                    RowPosition += 1;
                    int k = 3;
                    row = sheet.CreateRow(RowPosition);
                    for (int j = 0; j <= i; j++)
                    {
                        cell = row.CreateCell(j);
                        if (j == 0)
                        {
                            cell.SetCellValue(r.building_name);
                        }
                        if (j == 1)
                        {
                            cell.SetCellValue(r.floor_tag);
                        }
                        if (j == 2)
                        {
                            cell.SetCellValue(r.device_serial_tag);
                        }
                        
                        if (j == 3)
                        {
                            foreach (var rr in r.rawData)
                            {
                                cell.SetCellValue(rr.avg_rawdata.ToString());
                                j++;
                                k++;
                                cell = row.CreateCell(j);
                            }
                        }
                        
                        if (j == k)
                        {
                            cell.SetCellValue(r.total);
                        }
                        if (j == k+1)
                        {
                            cell.SetCellValue(r.price);
                        }
                        if (j == k+2)
                        {
                            cell.SetCellValue(r.total_price);
                        }

                        cell.CellStyle = style12;
                    }
                }
            }

            var ms = new NpoiMemoryStream
            {
                AllowClose = false
            };
            workbook.Write(ms);
            ms.Flush();
            ms.Seek(0, SeekOrigin.Begin);
            Response.Headers.Add("Access-Control-Expose-Headers", "Content-Disposition");
            return File(ms, "application/vnd.ms-excel", "電表報表.xlsx");
        }

        [HttpPost]
        [Route("api/ExportWaterList")]
        public FileResult OpeExportExcelWater([FromBody] HydroMeterInput input)
        {
            
            var result = this.WaterList(input).Result.Value.Data.ToList();

            var workbook = new XSSFWorkbook();
            #region excel設定
            IFont font12 = workbook.CreateFont();
            font12.FontName = "新細明體";
            font12.FontHeightInPoints = 12;
            ICellStyle style12 = workbook.CreateCellStyle();
            style12.SetFont(font12);
            style12.Alignment = HorizontalAlignment.Center;
            style12.VerticalAlignment = VerticalAlignment.Center;
            IFont font12Times = workbook.CreateFont();
            font12Times.FontName = "Times New Roman";
            font12Times.FontHeightInPoints = 12;
            IFont font18 = workbook.CreateFont();
            font18.FontName = "新細明體";
            font18.FontHeightInPoints = 18;
            font18.IsBold = true;
            ICellStyle styleTitle18 = workbook.CreateCellStyle();
            styleTitle18.SetFont(font18);
            styleTitle18.Alignment = HorizontalAlignment.Center;
            styleTitle18.VerticalAlignment = VerticalAlignment.Center;
            ICellStyle styleLeft12 = workbook.CreateCellStyle();
            styleLeft12.SetFont(font12);
            styleLeft12.Alignment = HorizontalAlignment.Left;
            styleLeft12.VerticalAlignment = VerticalAlignment.Center;
            ICellStyle styleLine12 = workbook.CreateCellStyle();
            styleLine12.SetFont(font12);
            styleLine12.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
            styleLine12.VerticalAlignment = VerticalAlignment.Center;
            styleLine12.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
            styleLine12.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
            styleLine12.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
            styleLine12.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
            ICellStyle stylein12 = workbook.CreateCellStyle();
            stylein12.SetFont(font12Times);
            stylein12.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Left;
            stylein12.VerticalAlignment = VerticalAlignment.Center;
            stylein12.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
            stylein12.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
            stylein12.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
            stylein12.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
            stylein12.WrapText = true;
            #endregion

            var sheet = workbook.CreateSheet("電表報表");
            int RowPosition = 0;
            if (result.Count > 0)
            {
                #region set cell
                IRow row = sheet.CreateRow(RowPosition);
                sheet.SetColumnWidth(0, 4 * 160 * 12);
                sheet.SetColumnWidth(1, 4 * 160 * 12);
                sheet.SetColumnWidth(2, 4 * 160 * 12);

                int i = 0;
                ICell cell = row.CreateCell(i++);
                cell.SetCellValue("東別");
                cell.CellStyle = styleLine12;
                cell = row.CreateCell(i++);
                cell.SetCellValue("樓層");
                cell.CellStyle = styleLine12;
                cell = row.CreateCell(i++);
                cell.SetCellValue("設備");
                cell.CellStyle = styleLine12;

                foreach (var rr in result.FirstOrDefault().rawData)
                {
                    cell = row.CreateCell(i++);
                    cell.SetCellValue(rr.timeStamp);
                    cell.CellStyle = styleLine12;
                }

                cell = row.CreateCell(i++);
                cell.SetCellValue("小計");
                cell.CellStyle = styleLine12;
                cell = row.CreateCell(i++);
                cell.SetCellValue("單價");
                cell.CellStyle = styleLine12;
                cell = row.CreateCell(i++);
                cell.SetCellValue("金額總計");
                cell.CellStyle = styleLine12;
                #endregion

                foreach (var r in result)
                {
                    RowPosition += 1;
                    int k = 3;
                    row = sheet.CreateRow(RowPosition);
                    for (int j = 0; j <= i; j++)
                    {
                        cell = row.CreateCell(j);
                        if (j == 0)
                        {
                            cell.SetCellValue(r.building_name);
                        }
                        if (j == 1)
                        {
                            cell.SetCellValue(r.floor_tag);
                        }
                        if (j == 2)
                        {
                            cell.SetCellValue(r.device_serial_tag);
                        }

                        if (j == 3)
                        {
                            foreach (var rr in r.rawData)
                            {
                                cell.SetCellValue(rr.avg_rawdata.ToString());
                                j++;
                                k++;
                                cell = row.CreateCell(j);
                            }
                        }

                        if (j == k)
                        {
                            cell.SetCellValue(r.total);
                        }
                        if (j == k + 1)
                        {
                            cell.SetCellValue(r.price);
                        }
                        if (j == k + 2)
                        {
                            cell.SetCellValue(r.total_price);
                        }

                        cell.CellStyle = style12;
                    }
                }
            }

            var ms = new NpoiMemoryStream
            {
                AllowClose = false
            };
            workbook.Write(ms);
            ms.Flush();
            ms.Seek(0, SeekOrigin.Begin);

            Response.Headers.Add("Access-Control-Expose-Headers", "Content-Disposition");

            return File(ms, "application/vnd.ms-excel", "水表報表.xlsx");
        }
    }
}