using MiniExcelLibs;
using SlnMesnac.LabelPrint.Log4net;
using SlnMesnac.LabelPrint.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SlnMesnac.LabelPrint.FileOperate
{
    public class FileHelper
    {

        private readonly LogHelper logHelper = LogHelper.Instance;
        #region 单例实现
        private static readonly Lazy<FileHelper> lazy = new Lazy<FileHelper>(() => new FileHelper());

        public static FileHelper Instance
        {
            get
            {
                return lazy.Value;
            }
        }
        #endregion

        private FileHelper() { }

        /// <summary>
        /// 读取Excel内容
        /// </summary>
        /// <param name="filePath"></param>
        public List<BaseLabelInfo> ReadExceFile(string filePath)
        {
            List<BaseLabelInfo> result = null;
            try
            {
                string fileName = GetFileName(filePath);
                if (string.IsNullOrEmpty(fileName))
                {
                    return result;
                }

                var sheetNames = MiniExcel.GetSheetNames(filePath);

                if (sheetNames != null)
                {

                    result = new List<BaseLabelInfo>();

                    foreach (string sheetName in sheetNames)
                    {
                        //根据sheet读取文档内容
                        List<dynamic> info = MiniExcel.Query(filePath, sheetName: sheetName).ToList();

                        if (info != null)
                        {
                            for (int i = 1; i < info.Count; i++)
                            {
                                //解析数据
                                dynamic labelDynamic = info[i];
                                BaseLabelInfo labelInfo = new BaseLabelInfo();
                                labelInfo.label = labelDynamic;
                                labelInfo.productType = fileName;
                                labelInfo.column_A = labelDynamic.A;
                                if (fileName == "Pallet")
                                {
                                    labelInfo.recordTime = DateTime.Now;
                                    result.Add(labelInfo);
                                    continue;
                                }
                                labelInfo.column_B = labelDynamic.B;
                                labelInfo.column_C = labelDynamic.C;
                                labelInfo.column_D = labelDynamic.D;
                                if(fileName == "Gas" || fileName == "TF" || fileName == "Drum")
                                {
                                    labelInfo.recordTime = DateTime.Now;
                                    result.Add(labelInfo);
                                    continue;
                                }
                                labelInfo.column_E = labelDynamic.E;
                                if (fileName == "Unit")
                                {
                                    if (labelInfo.column_B == null)
                                    {
                                        continue;
                                    }
                                    else
                                    {
                                        labelInfo.recordTime = DateTime.Now;
                                        result.Add(labelInfo);
                                        continue;
                                    }
                                    
                                }
                                //labelInfo.column_F = labelDynamic.F;
                                //labelInfo.column_G = labelDynamic.G;
                                //labelInfo.column_H = labelDynamic.H;
                                //labelInfo.column_I = labelDynamic.I;
                                //labelInfo.column_J = labelDynamic.J;
                                //labelInfo.recordTime = DateTime.Now;
                                //result.Add(labelInfo);
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                logHelper.Error("Excel文件读取异常", ex);
            }

            return result;
        }

        /// <summary>
        /// 获取产品型号
        /// </summary>
        /// <param name="filePath"></param>
        /// <returns></returns>
        private string GetFileName(string filePath)
        {
            if (filePath.Contains("Gas"))
            {
                return "Gas";
            }else if (filePath.Contains("TF"))
            {
                return "TF";
            }
            else if (filePath.Contains("Drum"))
            {
                return "Drum";
            }
            else if (filePath.Contains("Unit"))
            {
                return "Unit";
            }
            else if (filePath.Contains("Pallet"))
            {
                return "Pallet";
            }
            else
            {
                return string.Empty;
            }

        }
    }
}