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().Replace(" ", "");
                string playerName = objs[i, 2].ToString().Replace(" ", "");
                Player_DataInfo info = new Player_DataInfo(
                    id,
                    playerName
                );
                array.Add(info);
            }

            return array;
        }

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

            List<SingleChoice_QuestionBank_A_DataInfo> array = new List<SingleChoice_QuestionBank_A_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().Replace(" ", "");
                string topic = objs[i, 2].ToString().Replace(" ", "");

                // var strings = objs[i, 3].ToString().Replace(" ", "").Split("\n");
                string[] options = ConvertToStrings_Option(objs[i, 3].ToString());
                CheckLog(objs[i, 3].ToString(), options, 4, i);

                string[] answer = ConvertToStrings_Answer(objs[i, 4].ToString());
                SingleChoice_QuestionBank_A_DataInfo info = new SingleChoice_QuestionBank_A_DataInfo(
                    id,
                    topic,
                    options,
                    answer
                );
                array.Add(info);
            }

            return array;
        }

        static string[] ConvertToStrings_Option(string str)
        {
            string s = str;
            s = str.Replace(" ", "");
            s = s.Replace("\n", "");

            var strings = s.Split(";");
            var removeNullStrings = RemoveNullStrings(strings);
            return removeNullStrings;
        }

        static string[] ConvertToStrings_Answer(string str)
        {
            string s = str;
            s = str.Replace(" ", "");
            s = s.Replace("\n", "");

            var strings = s.Split(",");
            var removeNullStrings = RemoveNullStrings(strings);
            return removeNullStrings;
        }

        static string[] RemoveNullStrings(string[] strings)
        {
            List<string> list = new List<string>();
            for (var i = 0; i < strings.Length; i++)
            {
                if (strings[i] != "")
                    list.Add(strings[i]);
            }

            return list.ToArray();
        }

        static bool CheckLog(string str, string[] strings, int count, int number)
        {
            if (strings.Length != count)
            {
                Debug.Log($"{str}--{strings}这里不对劲{strings.Length}，速查{number}");
                return false;
            }

            return true;
        }

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

            List<SingleChoice_QuestionBank_B_DataInfo> array = new List<SingleChoice_QuestionBank_B_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().Replace(" ", "");
                string topic = objs[i, 2].ToString().Replace(" ", "");

                string[] options = ConvertToStrings_Option(objs[i, 3].ToString());
                CheckLog(objs[i, 3].ToString(), options, 4, i);

                string[] answer = ConvertToStrings_Answer(objs[i, 4].ToString());
                SingleChoice_QuestionBank_B_DataInfo info = new SingleChoice_QuestionBank_B_DataInfo(
                    id,
                    topic,
                    options,
                    answer
                );
                array.Add(info);
            }

            return array;
        }

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

            List<TureOrFalse_QuestionBank_C_DataInfo> array = new List<TureOrFalse_QuestionBank_C_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().Replace(" ", "");
                string topic = objs[i, 2].ToString().Replace(" ", "");

                string[] options = ConvertToStrings_Option(objs[i, 3].ToString());
                CheckLog(objs[i, 3].ToString(), options, 2, i);

                string[] answer = ConvertToStrings_Answer(objs[i, 4].ToString());
                TureOrFalse_QuestionBank_C_DataInfo info = new TureOrFalse_QuestionBank_C_DataInfo(
                    id,
                    topic,
                    options,
                    answer
                );
                array.Add(info);
            }

            return array;
        }

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

            List<MultipleChoice_QuestionBank_D_DataInfo> array = new List<MultipleChoice_QuestionBank_D_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().Replace(" ", "");
                string topic = objs[i, 2].ToString().Replace(" ", "");

                string[] options = ConvertToStrings_Option(objs[i, 3].ToString());
                CheckLog(objs[i, 3].ToString(), options, 5, i);

                string[] answer = ConvertToStrings_Answer(objs[i, 4].ToString());
                MultipleChoice_QuestionBank_D_DataInfo info = new MultipleChoice_QuestionBank_D_DataInfo(
                    id,
                    topic,
                    options,
                    answer
                );
                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];

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

        void CheckAndRemovePunctuationMark(string str)
        {
        }

        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;
        }
    }
}