using UnityEngine;
using Excel;
using System.Data;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using OfficeOpenXml;
using OfficeOpenXml.Table;
using Unity.VisualScripting;

namespace ZXL.Excel
{
    public class ReadExcel
    {
        //public static string Excel = "Book";

        public static List<Player_DataInfo> SelectPlayerTable(string name, string sheetName = "Sheet1")
        {
            string excelName = name + ".xlsx";

            List<Player_DataInfo> array = new List<Player_DataInfo>();

            var objs = ReadExcel.Read(excelName, sheetName);

            var xLeng = objs.GetLength(1);
            var yLeng = objs.GetLength(0);

            for (var i = 2; i < yLeng; i++) //列
            {
                string id = objs[i, 1].ToString();
                string playerName = objs[i, 2].ToString();
                Player_DataInfo info = new Player_DataInfo(
                    id,
                    playerName
                );
                array.Add(info);
            }

            return array;
        }

        public static List<GroupData_DataInfo> SelectGroupTable(string name, string sheetName = "Sheet1")
        {
            string excelName = name + ".xlsx";

            List<GroupData_DataInfo> array = new List<GroupData_DataInfo>();

            var objs = ReadExcel.Read(excelName, sheetName);

            var xLeng = objs.GetLength(1);
            var yLeng = objs.GetLength(0);

            for (var i = 2; i < yLeng; i++) //列
            {
                string id = objs[i, 1].ToString();
                string groupName = objs[i, 2].ToString();
                GroupData_DataInfo info = new GroupData_DataInfo(
                    id,
                    groupName
                );
                array.Add(info);
            }

            return array;
        }

        /// <summary>
        /// 读取 Excel ; 需要添加 Excel.dll; System.Data.dll;
        /// </summary>
        /// <param name="excelName">excel文件名</param>
        /// <param name="sheetName">sheet名称</param>
        /// <returns>DataRow的集合</returns>
        static object[,] Read(string excelName, string sheetName)
        {
            object[,] objs = new object[,] { };

            using FileStream fs = new FileStream(Application.streamingAssetsPath + "/Excel/" + excelName, FileMode.Open, FileAccess.Read, FileShare.Read);
            using (var pck = new ExcelPackage(fs))
            {
                var sheet = pck.Workbook.Worksheets[sheetName];

                var excelRange = sheet.Cells["b:g"];
                int row = excelRange.Count(x => x.Address.Length == 2 && x.Address[1] == '2');
                var enumerable = excelRange.Select((x, i) =>
                {
                    if (x.Address.Length == 2 && x.Address[1] == '1')
                    {
                        return null;
                    }

                    return x.Value.ToString();
                });
                var strings = enumerable.Where(x => x is not null).ToArray();
                List<string[]> list = new List<string[]>();
                var stringsLength = strings.Length;
                for (var i = 0; (i + row - 1) < stringsLength; i += row)
                {
                    var strings1 = new string[row];
                    for (var i1 = 0; i1 < row; i1++)
                    {
                        strings1[i1] = strings[i + i1];
                    }

                    list.Add(strings1);
                }

                foreach (var strings1 in list)
                {
                    Debug.Log(string.Join(',', strings1));
                }

                objs = sheet.Cells.Value as object[,];
                return objs;
            }

            // string path = Application.streamingAssetsPath + "/Excel/" + excelName;
            // //string path = Application.dataPath + "/" + excelName;
            // FileStream stream = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read);
            // IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);
            //
            // DataSet result = excelReader.AsDataSet();
            // //int columns = result.Tables[0].Columns.Count;
            // //int rows = result.Tables[0].Rows.Count;
            //
            // //tables可以按照sheet名获取，也可以按照sheet索引获取
            // //return result.Tables[0].Rows;
            // return result.Tables[sheetName].Rows;
        }

        private static DataTable GetDataTable()
        {
            return new DataTable("");
        }

        /// <summary>
        /// 读取 Excel ; 需要添加 Excel.dll; System.Data.dll;
        /// </summary>
        /// <param name="excelName">excel文件名</param>
        /// <param name="sheetName">sheet索引</param>
        /// <returns>DataRow的集合</returns>
        static DataRowCollection Read(string excelName, int sheetIndex)
        {
            string path = Application.streamingAssetsPath + "/Excel/" + excelName;
            //string path = Application.dataPath + "/" + excelName;
            FileStream stream = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Read);
            IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);

            DataSet result = excelReader.AsDataSet();
            //int columns = result.Tables[0].Columns.Count;
            //int rows = result.Tables[0].Rows.Count;

            //tables可以按照sheet名获取，也可以按照sheet索引获取
            //return result.Tables[0].Rows;
            return result.Tables[sheetIndex].Rows;
        }
    }
}