using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Data;
using System.IO;
using System.Linq;
using System.Linq.Dynamic.Core;
using System.Text;
using System.Threading.Tasks;
using Google.Protobuf.Collections;
using NPOI.HSSF.UserModel;
using NPOI.OpenXmlFormats.Spreadsheet;
using NPOI.SS.UserModel;
using NPOI.SS.Util;
using NPOI.XSSF.UserModel;
using SqlSugar;
using Tiobon.Core.Common;
using Tiobon.Core.Common.DB.Dapper;
using Tiobon.Core.Common.Extensions;
using Tiobon.Core.Model.Models;

namespace Tiobon.Core.DataAccess;

/// <summary>
/// 报表辅助类
/// </summary>
public static class ReportHelper
{

    #region 文件下载
    /// <summary>
    /// 生成文件，并通知用户下载(IQueryable)
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="list"></param>
    /// <param name="modelName">导出模块名称(JobSetting.xxx)</param>
    /// <param name="exportFields"></param>
    /// <param name="exportFieldsWidth"></param>
    /// <param name="user"></param>
    /// <param name="sort"></param>
    /// <param name="headText"></param>
    /// <param name="totalText"></param>
    /// <param name="isNeedItemNo"></param>
    public static async Task<long> SendFile<T>(IQueryable<T> list, string modelName, List<string> exportFields, List<int> exportFieldsWidth, string sort = null, string headText = "", string totalText = "", bool isNeedItemNo = false) where T : class
    {

        if (list == null)
            throw new Exception("生成文件失败");
        //生成文件至文件服务器
        var fid = SnowFlakeSingle.Instance.NextId();
        var path = $"{$"{Environment.CurrentDirectory}{Path.DirectorySeparatorChar}wwwroot{Path.DirectorySeparatorChar}files{Path.DirectorySeparatorChar}export{Path.DirectorySeparatorChar}{fid}{Path.DirectorySeparatorChar}"}";
        if (!Directory.Exists(path))
            Directory.CreateDirectory(path);
        var fname = $"{modelName}.xlsx";

        list = string.IsNullOrEmpty(sort) ? list : list.OrderBy(sort);
        list.IntoFileFromLinqExcel(path + fname, ",", exportFields, exportFieldsWidth, headText, totalText, isNeedItemNo);

        using var _context = ContextFactory.CreateContext();

        Ghre_Attachment fileAttachment = new Ghre_Attachment();
        fileAttachment.Id = fid;
        fileAttachment.AttachFileName = fname;
        fileAttachment.CreateBy = App.User.ID;
        fileAttachment.CreateTime = DateTime.Now;
        fileAttachment.AttachmentName = fname;
        fileAttachment.AttachFileExtension = "xlsx";
        fileAttachment.AttachFileSize = 0;
        fileAttachment.PhysicsPath = $"/files/export/{fid}/" + fname;
        fileAttachment.AttachmentType = "xlsx";

        await _context.Ghre_Attachment.AddAsync(fileAttachment);
        await _context.SaveChangesAsync();
        return fid;
    }

    public static async Task<long> SendFile(DataTable list, string modelName, Dictionary<string, string> fieldDescs, List<int> exportFieldsWidth, string sort = null, string headText = "", string totalText = "", bool isNeedItemNo = false)
    {

        if (list == null)
            throw new Exception("生成文件失败");
        //生成文件至文件服务器
        var fid = SnowFlakeSingle.Instance.NextId();
        var path = $"{$"{Environment.CurrentDirectory}{Path.DirectorySeparatorChar}wwwroot{Path.DirectorySeparatorChar}files{Path.DirectorySeparatorChar}export{Path.DirectorySeparatorChar}{fid}{Path.DirectorySeparatorChar}"}";
        if (!Directory.Exists(path))
            Directory.CreateDirectory(path);
        var fname = $"{modelName}.xlsx";

        list.IntoFileFromLinqExcel(path + fname, ",", fieldDescs, exportFieldsWidth, headText, totalText, isNeedItemNo);

        using var _context = ContextFactory.CreateContext();

        Ghre_Attachment fileAttachment = new Ghre_Attachment();
        fileAttachment.Id = fid;
        fileAttachment.AttachFileName = fname;
        fileAttachment.CreateBy = App.User.ID;
        fileAttachment.CreateTime = DateTime.Now;
        fileAttachment.AttachmentName = fname;
        fileAttachment.AttachFileExtension = "xlsx";
        fileAttachment.AttachFileSize = 0;
        fileAttachment.PhysicsPath = $"/files/export/{fid}/" + fname;
        fileAttachment.AttachmentType = "xlsx";

        await _context.Ghre_Attachment.AddAsync(fileAttachment);
        await _context.SaveChangesAsync();
        return fid;
    }
    #endregion


    public static async Task<long> ExportExcel(ISqlSugarClient Db, List<QueryExportColumn> tableColumn, DataTable dt)
    {
        string filepath = "";
        //生成表格  
        try
        {
            IWorkbook fileWorkbook;
            bool IsHSSF = true;
            if (Path.GetExtension(filepath) == ".xls")
            {
                IsHSSF = true;
                fileWorkbook = new HSSFWorkbook();
            }
            else
            {
                IsHSSF = false;
                fileWorkbook = new XSSFWorkbook();
            }
            int index = 0;

            //创建Sheet;
            ISheet sheet = fileWorkbook.CreateSheet("导入数据");
            ISheet sheet2 = fileWorkbook.CreateSheet("下拉数据");

            //隐藏下拉数据Sheet
            //fileWorkbook.SetSheetHidden(fileWorkbook.GetSheetIndex("下拉数据"), SheetState.Hidden);

            IRow erow_1 = sheet.CreateRow(0); //ID行
            IRow erow_2 = sheet.CreateRow(1); //文本行

            erow_1.CreateCell(0).SetCellValue("ExcelNums");
            erow_2.CreateCell(0).SetCellValue("序号");

            //必填颜色
            var CellRed = fileWorkbook.CreateCellStyle();    // 创建单元格样式
            IFont Font = fileWorkbook.CreateFont();     // 创建字体
            Font.Color = IndexedColors.Red.Index;   // 选择字体颜色
            CellRed.SetFont(Font);   // 把字体赋给样式 

            erow_2.GetCell(0).CellStyle = CellRed;

            //文本类型
            ICellStyle cellString = fileWorkbook.CreateCellStyle();
            IDataFormat cellFormat = fileWorkbook.CreateDataFormat();
            cellString.DataFormat = cellFormat.GetFormat("@");

            //下拉数据列ID
            int listColIndex = 0;
            int ColNums = 0;
            foreach (var drow in tableColumn)
            {
                int SortNum = Convert.ToInt32(drow.sortNum);
                ICell cell = erow_1.CreateCell(SortNum);
                ICell cel2 = erow_2.CreateCell(SortNum);
                string field = drow.field;
;
                string label = drow.label;
                // 批注 
                string commentText = string.Empty;
                try
                {
                    commentText = drow.commentText;
                }
                catch (Exception)
                {
                }
                cell.SetCellValue(field);
                cel2.SetCellValue(label);

                // 设置批注
                if (!string.IsNullOrEmpty(commentText))
                {
                    cel2.CellComment = GetComment(sheet, null, ColNums, commentText);
                }

                //是否必填
                if (drow.required == "true")
                {
                    cel2.CellStyle = CellRed;
                }

                string dataSource = drow.dataSource;
                //是否下拉
                if (!string.IsNullOrEmpty(dataSource)
                    && !dataSource.StartsWith("OrgTreeWith")
                     && !dataSource.StartsWith("StaffWith")
                    )
                {
                    List<DataSourceList> dataSourceLists = GetDataSourceLists(Db, field, dataSource);
                    //下拉数据行ID
                    int listRowIndex = 1;
                    //写入下拉值区域
                    IRow rowTitle = sheet2.GetRow(0);
                    if (rowTitle == null)
                        rowTitle = sheet2.CreateRow(0);
                    rowTitle.CreateCell(listColIndex).SetCellValue(label);
                    foreach (var data in dataSourceLists)//将下拉列表中的数据循环赋给sheet页
                    {
                        IRow row = sheet2.GetRow(listRowIndex);
                        if (row == null)
                            row = sheet2.CreateRow(listRowIndex);
                        listRowIndex = listRowIndex + 1;
                        row.CreateCell(listColIndex).SetCellValue(data.name);
                    }
                    // 定义一个名称，指向刚才创建的下拉项的区域：
                    var rangeName = field + "Range";
                    IName range = fileWorkbook.CreateName();
                    string ABC = Other.Num2ABCletter((listColIndex + 1));
                    //range.RefersToFormula = "下拉数据" + "!$"+ ABC + "$2:$"+ ABC + "$" + (listRowIndex == 0 ? 2 : listRowIndex);
                    //Excel 正常引用
                    string a1 = "下拉数据" + "!$" + ABC + "$2:$" + ABC + "$" + (listRowIndex == 0 ? 2 : listRowIndex);
                    // Excel R1C1引用样式
                    string a2 = "下拉数据" + "!$R2C" + listColIndex.ToString() + ":R" + listRowIndex.ToString() + "C" + listColIndex.ToString();
                    listColIndex = listColIndex + 1;

                    range.RefersToFormula = a1;

                    range.NameName = rangeName;

                    //-----------------分割线以上是用来创建一个sheet页赋值，然后将sheet页中的内容定义成一个名称，后面用来当作数组传入方法的过程 
                    CellRangeAddressList cellRegions = new CellRangeAddressList(1, 65535, SortNum, SortNum);//  
                    DVConstraint constraint = DVConstraint.CreateFormulaListConstraint(rangeName);
                    //HSSFDataValidation dataValidate = new HSSFDataValidation(cellRegions, constraint);
                    //IDataValidationConstraint constraint;
                    IDataValidation dataValidate;
                    if (Path.GetExtension(filepath) == ".xls")
                    {
                        constraint = DVConstraint.CreateFormulaListConstraint(rangeName);
                        dataValidate = new HSSFDataValidation(cellRegions, constraint);
                    }
                    else
                    {
                        CT_DataValidation cdv = new CT_DataValidation();
                        cdv.allowBlank = true;
                        //constraint = CT_DataValidation
                        dataValidate = new XSSFDataValidation(cellRegions, cdv);
                    }
                    // 多选 ，自行输入不报错
                    if (drow.elementType.ToString().LastIndexOf("multiple") == -1)
                    {
                        dataValidate.CreateErrorBox("输入不合法", "请输入或选择下拉列表中的值。");
                        dataValidate.ShowPromptBox = true;
                    }
                    else
                    {
                        dataValidate.ShowErrorBox = false;
                    }
                    sheet.AddValidationData(dataValidate);
                }

                //是否文本格式
                if (drow.dataType != "int"
                    && drow.dataType != "decimal"
                    && drow.dataType != "number"
                    )
                {
                    sheet.SetDefaultColumnStyle(ColNums, cellString);
                }

                ColNums = ColNums + 1;
            }

            erow_1.HeightInPoints = 1;

            // 如果导出模板存在默认数据
            //if (ds.Tables[1] != null && ds.Tables[1].Rows.Count > 0)
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                IRow row1 = sheet.CreateRow(i + 2);
                for (int j = 0; j < dt.Columns.Count; j++)
                {
                    ICell cell = row1.CreateCell(j);
                    cell.SetCellValue(dt.Rows[i][j].ToString());
                }
            }

            ////月排班维护写入下拉数据
            //if (menuName == "F_SchedulePeriodSetup")
            //{
            //    string listSql = @" select ParaDetailNo 日期类别编号,ParaDetailName 日期类别名称 from Ghrs_ParaDetail where ParaMasterNo = 'DateType' and IsEnable = 1;
            //                            select ShiftNo 班次编号,ShiftName 班次名称 from Ghrb_Shift where IsEnable = 1;
            //                            select ShiftGroupNo 班组编号,ShiftGroupName 班组名称 from Ghrb_ShiftGroup where IsEnable = 1; ";
            //    InsertExcelList(sheet2, listSql);
            //}
            //// 生成部门Sheet
            //if (tableColumn.Rows.Cast<DataRow>().Any(x => x["dataSource"].ToString().StartsWith("OrgTreeWith")))
            //{
            //    ISheet sheetDept = fileWorkbook.CreateSheet("部门数据");
            //    string listSql = @" select DeptNo 部门编号,DeptName 部门名称 from Ghro_Dept where IsEnable = 1 and convert(date,getdate()) between BeginDate and ISNULL(EndDate,'2099-12-31') ";
            //    InsertExcelList(sheetDept, listSql);
            //}

            // Sheet 更改列为自适应宽度
            for (int col = 0; col <= ColNums; col++)
            {
                try
                {
                    sheet.AutoSizeColumn(col);//自适应宽度，但是其实还是比实际文本要宽
                    var columnWidth = sheet.GetColumnWidth(col) / 256;//获取当前列宽度
                    for (int rowIndex = 1; rowIndex <= sheet.LastRowNum; rowIndex++)
                    {
                        IRow row = sheet.GetRow(rowIndex);
                        ICell cell = row.GetCell(col);
                        int contextLength = Encoding.UTF8.GetBytes(cell.ToString()).Length;//获取当前单元格的内容宽度
                        columnWidth = columnWidth < contextLength ? contextLength : columnWidth;
                    }
                    sheet.SetColumnWidth(col, columnWidth * 256);// 
                }
                catch (Exception)
                {
                }
            }

            // Sheet2 更改列为自适应宽度
            //if (listColIndex > 0)
            //{
            //    for (int col = 0; col <= listColIndex - 1; col++)
            //    {
            //        sheet2.AutoSizeColumn(col);//自适应宽度，但是其实还是比实际文本要宽
            //        int columnWidth = sheet2.GetColumnWidth(col) / 256;//获取当前列宽度
            //        for (int rowIndex = 1; rowIndex <= sheet2.LastRowNum; rowIndex++)
            //        {
            //            IRow row = sheet2.GetRow(rowIndex);
            //            ICell cell = row.GetCell(col);
            //            int contextLength = Encoding.UTF8.GetBytes(cell.ToString()).Length;//获取当前单元格的内容宽度
            //            columnWidth = columnWidth < contextLength ? contextLength : columnWidth;
            //        }
            //        sheet2.SetColumnWidth(col, columnWidth * 256);// 
            //    }
            //}
            //转为字节数组
            MemoryStream stream = new MemoryStream();
            fileWorkbook.Write(stream);
            var buf = stream.ToArray();

            //保存为Excel文件
            using (FileStream fs = new FileStream(filepath, FileMode.Create, FileAccess.Write))
            {
                fs.Write(buf, 0, buf.Length);
                fs.Flush();
            }
        }
        catch (Exception ex)
        {
        }
        return default(long);
    }
    /// <summary>
    /// Excel字段下拉
    /// </summary>
    public class DataSourceList
    {
        public string field { get; set; }
        public string id { get; set; }
        public string no { get; set; }
        public string name { get; set; }
    } /// <summary>
      /// 设置Excel批注
      /// </summary>
      /// <param name="sheet"> sheet</param>
      /// <param name="comment"> comment </param>
      /// <param name="cellnum"> 列 </param>
      /// <param name="text">文本</param>
      /// <returns></returns>
    private static IComment GetComment(ISheet sheet, IComment comment, int cellnum, string text)
    {
        IWorkbook workbook = sheet.Workbook;
        bool exportXlsx = workbook is XSSFWorkbook;
        if (comment == null)
        {
            IDrawing draw = sheet.CreateDrawingPatriarch();
            IClientAnchor clientAnchor = null;
            if (exportXlsx)
            {
                clientAnchor = new XSSFClientAnchor(0, 0, 0, 0, cellnum, 0, cellnum + 2, 6);
            }
            else
            {
                clientAnchor = new HSSFClientAnchor(0, 0, 0, 0, cellnum, 0, cellnum + 2, 6);
            }
            comment = draw.CreateCellComment(clientAnchor);
        }
        IRichTextString richText = null;
        if (exportXlsx)
        {
            richText = new XSSFRichTextString(string.Format("{0}", text));
        }
        else
        {
            richText = new HSSFRichTextString(string.Format("{0}", text));
        }
        //richText.ApplyFont(GetDefaultFont(workbook, true));// 设置批注中文本的字体
        comment.String = richText;
        comment.Visible = false;
        comment.Author = "Tiobon";
        return comment;
    }

    /// <summary>
    /// 获取数据下拉
    /// </summary>
    /// <param name="dataSource"></param>
    /// <returns></returns>
    public static List<DataSourceList> GetDataSourceLists(ISqlSugarClient Db, string field, string dataSource)
    {
        List<DataSourceList> dataSourceList = new List<DataSourceList>();

        try
        {
            ////Dept
            //if (dataSource.StartsWith("OrgTreeWith"))
            //{
            //}
            ////Staff
            //else if (dataSource.StartsWith("StaffWith"))
            //{

            //}
            //else
            {
                string listSQL = string.Format(@"exec[dbo].[PRI_ListValue] '{0}','GetEnableList','',1,63,'',9999,1,2", dataSource);
                DataSet listds = Db.Ado.GetDataSetAll(listSQL);
                if (listds.Tables.Count > 3)
                {
                    DataTable listdt = new DataTable();
                    listdt = listds.Tables[2];

                    foreach (DataRow row in listdt.Rows)
                    {
                        DataSourceList _dataSource = new DataSourceList();
                        _dataSource.field = field;
                        try
                        {
                            _dataSource.id = row["value"].ToString();
                            _dataSource.name = row["label"].ToString();
                        }
                        catch (Exception)
                        {
                            _dataSource.id = row[0].ToString();
                            _dataSource.name = row[1].ToString();
                            try
                            {
                                _dataSource.name = _dataSource.name + " " + row[2].ToString();
                            }
                            catch (Exception)
                            {
                            }
                        }
                        dataSourceList.Add(_dataSource);
                    }
                }
            }
        }
        catch (Exception)
        {
        }

        return dataSourceList;
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="sheet"></param>
    /// <param name="sql">需要写入的查询的SQL</param>
    /// <param name="rows">开始行</param>
    /// <param name="cols">开始列</param>
    /// <returns></returns>
    public static bool InsertExcelList(ISqlSugarClient Db, ISheet sheet, string sql)
    {
        bool IsBool = false;
        DataSet ds = Db.Ado.GetDataSetAll(sql);
        //写入下拉值区域
        int cols = 0;
        foreach (DataTable dt in ds.Tables)
        {
            int col = 0;
            //表头
            IRow row = sheet.GetRow(0);
            if (row == null)
                row = sheet.CreateRow(0);
            for (int i = 0; i < dt.Columns.Count; i++)
            {
                ICell cell = row.CreateCell(i + cols);
                cell.SetCellValue(dt.Columns[i].ColumnName);
                col++;
            }
            //数据
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                IRow row1 = sheet.GetRow(i + 1);
                if (row1 == null)
                    row1 = sheet.CreateRow(i + 1);
                for (int j = 0; j < dt.Columns.Count; j++)
                {
                    ICell cell = row1.CreateCell(j + cols);
                    cell.SetCellValue(dt.Rows[i][j].ToString());
                }
            }
            cols = cols + col + 1;
        }

        return IsBool;
    }


    #region 其他
    public class Other
    {
        /// <summary>
        /// 数字转ADC字母
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static string Num2ABCletter([Range(1, 300)] int value)
        {
            List<string> Level = new List<string>
        {
            "A","B","C","D","E","F","G","H","I","J",
            "K","L","M","N","O","P","Q","R","S","T",
            "U","V","W","X","Y","Z",
        };

            value = value - 1;
            System.Text.ASCIIEncoding asciiEncoding = new System.Text.ASCIIEncoding();
            int remainder = value % 26;//余数
            int front = (value - remainder) / 26;//
            if (front == 0)
            {
                return Level[remainder];
            }
            else if (front < 26)
            {
                return Level[front - 1] + Level[remainder];
            }
            else
            {
                return Num2ABCletter(front) + Level[remainder];
            }
        }
    }

    #endregion
}