using Furion;
using Furion.FriendlyException;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Vote.Services.Dto;

namespace Vote.Services.Tools
{
    /// <summary>
    /// 
    /// </summary>
    public static class ExcelHelper
    {
        static ExcelHelper()
        {
            System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
        }
        /// <summary>
        /// 判断是否为兼容模式
        /// </summary>
        /// <param name="filePath"></param>
        /// <returns></returns>
        public static bool GetIsCompatible(string filePath)
        {
            return filePath.EndsWith(".xls", StringComparison.OrdinalIgnoreCase);
        }
        /// <summary>
        /// 创建工作薄
        /// </summary>
        /// <param name="isCompatible"></param>
        /// <returns></returns>
        public static IWorkbook CreateWorkbook(bool isCompatible)
        {
            if (isCompatible)
            {
                return new HSSFWorkbook();
            }
            else
            {
                return new XSSFWorkbook();
            }
        }

        /// <summary>
        /// 创建工作薄(依据文件流)
        /// </summary>
        /// <param name="isCompatible"></param>
        /// <param name="stream"></param>
        /// <returns></returns>
        public static IWorkbook CreateWorkbook(bool isCompatible, dynamic stream)
        {
            if (isCompatible)
            {
                return new HSSFWorkbook(stream);
            }
            else
            {
                return new XSSFWorkbook(stream);
            }
        }



        /// <summary>
        /// 列名字母转索引
        /// </summary>
        /// <param name="columnName"></param>
        /// <returns></returns>
        public static int ToExcelColumnIndex(this string columnName)
        {
            if (!Regex.IsMatch(columnName.ToUpper(), @"[A-Z]+")) { throw new Exception("invalid parameter"); }
            int index = 0;
            char[] chars = columnName.ToUpper().ToCharArray();
            for (int i = 0; i < chars.Length; i++)
            {
                index += ((int)chars[i] - (int)'A' + 1) * (int)Math.Pow(26, chars.Length - i - 1);
            }
            return index - 1;
        }
        /// <summary>
        /// 列索引转字母
        /// </summary>
        /// <param name="index"></param>
        /// <returns></returns>
        public static string ToExcelColumnName(this int index)
        {
            if (index < 0) { throw new Exception("invalid parameter"); }
            List<string> chars = new List<string>();
            do
            {
                if (chars.Count > 0) index--;
                chars.Insert(0, ((char)(index % 26 + (int)'A')).ToString());
                index = (int)((index - index % 26) / 26);
            } while (index > 0);
            return String.Join(string.Empty, chars.ToArray());
        }


        private static List<ProjectsList2Output> GetDataByType(List<ProjectsList2Output> list, Entities.EnumProjectType type)
        {
            return list.Where(a => a.type == type).ToList();
        }

        /// <summary>
        /// 
        /// </summary> 
        /// <returns></returns>
        public static string WriteTemplate(List<ProjectsList2Output> list, int start_row, string start_column)
        {
            try
            {
                string template_name = "2021年度甬江杯投票.xlsx";
                string excelFilePath = $"{App.WebHostEnvironment.WebRootPath}\\ExcelTemplate\\{template_name}";
                string outputPath = string.Empty;
                if (!string.IsNullOrEmpty(excelFilePath))
                {
                    using (FileStream excelFileStream = System.IO.File.OpenRead(excelFilePath))
                    {
                        bool isCompatible = ExcelHelper.GetIsCompatible(excelFilePath);
                        IWorkbook workbook = ExcelHelper.CreateWorkbook(isCompatible, excelFileStream);
                        ISheet sheet = null;
                        sheet = workbook.GetSheetAt(1);
                        Dictionary<string, string> dic_sheet_config = new Dictionary<string, string>();
                        var data = GetDataByType(list, Entities.EnumProjectType.FangJian);
                        //从第几行开始 , 比如 行号是4 , 就写3
                        var startRowIndex = start_row - 1;
                        for (int i = 0; i < data.Count; i++)
                        {
                            var c_rowindex = startRowIndex + i;
                            int cell_start_index = start_column.ToExcelColumnIndex();
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index).SetCellValue(data[i].no_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 1).SetCellValue(data[i].yes_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 2).SetCellValue(data[i].is_agree ? "通过" : "不通过");
                        }
                        var length0 = data.Count;
                        data = GetDataByType(list, Entities.EnumProjectType.ShiZheng);
                        for (int i = 0; i < data.Count; i++)
                        {
                            var c_rowindex = length0 + 1 + startRowIndex + i;
                            int cell_start_index = start_column.ToExcelColumnIndex();
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index).SetCellValue(data[i].no_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 1).SetCellValue(data[i].yes_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 2).SetCellValue(data[i].is_agree ? "通过" : "不通过");
                        }
                        var length1 = data.Count;
                        data = GetDataByType(list, Entities.EnumProjectType.GuiDaoGongCheng);
                        for (int i = 0; i < data.Count; i++)
                        {
                            var c_rowindex = length0 + 1 + length1 + 1 + startRowIndex + i;
                            int cell_start_index = start_column.ToExcelColumnIndex();
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index).SetCellValue(data[i].no_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 1).SetCellValue(data[i].yes_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 2).SetCellValue(data[i].is_agree ? "通过" : "不通过");
                        }
                        var length2 = data.Count;
                        data = GetDataByType(list, Entities.EnumProjectType.DianLiGongCheng);
                        for (int i = 0; i < data.Count; i++)
                        {
                            var c_rowindex = length0 + 1 + length1 + 1 + length2 + 1 + startRowIndex + i;
                            int cell_start_index = start_column.ToExcelColumnIndex();
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index).SetCellValue(data[i].no_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 1).SetCellValue(data[i].yes_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 2).SetCellValue(data[i].is_agree ? "通过" : "不通过");
                        }
                        var length3 = data.Count;
                        data = GetDataByType(list, Entities.EnumProjectType.JiaoTongGongCheng);
                        for (int i = 0; i < data.Count; i++)
                        {
                            var c_rowindex = length0 + 1 + length1 + 1 + length2 + 1 + length3 + 1 + startRowIndex + i;
                            int cell_start_index = start_column.ToExcelColumnIndex();
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index).SetCellValue(data[i].no_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 1).SetCellValue(data[i].yes_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 2).SetCellValue(data[i].is_agree ? "通过" : "不通过");
                        }
                        var length4 = data.Count;
                        data = GetDataByType(list, Entities.EnumProjectType.ShuiLiGongCheng);
                        for (int i = 0; i < data.Count; i++)
                        {
                            var c_rowindex = length0 + 1 + length1 + 1 + length2 + 1 + length3 + 1 + length4 + 1 + startRowIndex + i;
                            int cell_start_index = start_column.ToExcelColumnIndex();
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index).SetCellValue(data[i].no_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 1).SetCellValue(data[i].yes_count);
                            sheet.GetRow(c_rowindex).GetCell(cell_start_index + 2).SetCellValue(data[i].is_agree ? "通过" : "不通过");
                        }
                        var file = new FileInfo(excelFilePath);
                        var savePath = file.DirectoryName + "\\OutPut\\";
                        if (!Directory.Exists(savePath))
                            Directory.CreateDirectory(savePath);
                        outputPath = savePath + DateTime.Now.ToString("yyyyMMddHHmmss") + "-" + template_name;
                        using (var filess = new FileStream(outputPath, FileMode.Create, FileAccess.Write, FileShare.Read))
                        {
                            workbook.Write(filess);
                        }
                    }
                }
                return outputPath;
            }
            catch (System.IO.IOException ioex)
            {
                throw Oops.Oh("文件被占用，请检查文件模板");
            }
        }
    }
}