71 lines
2.2 KiB
C#
71 lines
2.2 KiB
C#
using System.Data;
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using ClosedXML.Excel;
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using RhSolutions.SkuParser.Abstractions;
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using RhSolutions.SkuParser.Models;
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namespace RhSolutions.SkuParser.Api.Services;
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public class BsExcelParser : ISkuParser
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{
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private IConfiguration configuration;
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private const int rowsLookupCount = 20;
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private const decimal vat = 1.2M;
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public BsExcelParser(IConfiguration configuration)
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{
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this.configuration = configuration;
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}
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public Dictionary<Product, double> ParseProducts(IFormFile file)
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{
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using XLWorkbook workbook = new(file.OpenReadStream());
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IXLWorksheet ws = workbook.Worksheet(1);
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var headers = configuration.GetSection("Headers");
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ws.AutoFilter.Clear();
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var cells = configuration.GetSection("Headers")
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.GetChildren()
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.ToDictionary(x => x.Path, x => ws.Range(1, 1, rowsLookupCount, ws.LastCellUsed().Address.ColumnNumber)
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.Search(x.Value)
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.FirstOrDefault())
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.OrderBy(x => x.Value?.Address.ColumnNumber ?? int.MaxValue);
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if (cells == null || cells.Any(x => x.Value == null))
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{
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throw new DataException($"В рабочей книге отсуствует таблица с необходимыми заголовками: {file.Name}");
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}
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var firstCell = cells.First().Value;
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var lastCell = cells.Last().Value?.WorksheetColumn().LastCellUsed();
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var table = ws.Range(firstCell, lastCell).AsTable();
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var rows = table.DataRange.Rows();
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Dictionary<Product, double> result = new();
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foreach (var row in rows.Where(r => r.Field(headers["Quantity"]).Value.IsNumber))
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{
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Product product = new()
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{
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Sku = row.Field(headers["Sku"]).GetString(),
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ProductLine = row.Field(headers["ProductLine"]).GetString() switch
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{
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"RAUTITAN" => ProductLine.RAUTITAN,
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"RAUTHERM S" => ProductLine.RAUTHERMS,
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_ => null
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},
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Name = row.Field(headers["Name"]).GetString(),
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Price = decimal.TryParse(row.Field(headers["Price"]).GetString(), out decimal value)
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? Math.Round(value * vat, 2)
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: null
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};
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double quantity = double.TryParse(row.Field(headers["Quantity"]).GetString(), out double q) ? q : 0;
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if (result.ContainsKey(product))
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{
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result[product] += quantity;
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}
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else
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{
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result.Add(product, quantity);
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}
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}
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return result;
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}
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}
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