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RhSolutions-Api/RhSolutions.Api/Services/ClosedXMLParser.cs

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C#
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using ClosedXML.Excel;
using RhSolutions.Models;
namespace RhSolutions.Api.Services
{
public class ClosedXMLParser : IPricelistParser
{
public IEnumerable<Product> GetProducts(IFormFile? file)
{
if (file == null)
{
yield break;
}
using XLWorkbook wb = new XLWorkbook(file.OpenReadStream());
var table = GetTable(wb);
var rows = table.DataRange.Rows();
foreach (var row in rows)
{
if (ProductSku.TryParse(row.Field("Актуальный материал")
.GetString(), out _))
{
yield return ParseRow(row);
}
}
}
private IXLTable GetTable(XLWorkbook wb)
{
var ws = wb.Worksheets.First();
ws.AutoFilter.IsEnabled = false;
try
{
var firstCellAddress = ws.Search("Программа", System.Globalization.CompareOptions.IgnoreCase)
.First()
.Address;
var lastCellAddress = ws.LastCellUsed().Address;
return ws.Range(firstCellAddress, lastCellAddress).AsTable();
}
catch (Exception ex)
{
throw new Exception($"Exception on parsing {ws.Name}:\n{ex.Message}");
}
}
private Product ParseRow(IXLTableRow row)
{
string productLine = row.Field("Программа")
.GetString();
string productName = row.Field("Наименование")
.GetString()
.Split('\n')
.First();
ProductSku.TryParse(row.Field("Актуальный материал")
.GetString(), out IEnumerable<ProductSku> productSkus);
ProductSku.TryParse(row.Field("Прежний материал")
.GetString(), out IEnumerable<ProductSku> deprecatedSkus);
string measureField = new string(row.Field("Ед. изм.")
.GetString()
.ToLower()
.Where(c => char.IsLetterOrDigit(c))
.ToArray());
Measure productMeasure;
switch (measureField)
{
case "кг":
productMeasure = Measure.Kg;
break;
case "м":
productMeasure = Measure.M;
break;
case "м2":
productMeasure = Measure.M2;
break;
case "шт":
productMeasure = Measure.P;
break;
default:
throw new ArgumentException();
}
string shippingSizeField = row.Field("Единица поставки")
.GetString();
if (!double.TryParse(shippingSizeField, out double productWarehouseCount))
{
productWarehouseCount = 0.0;
}
string onWarehouseField = row.Field("Складская программа")
.GetString();
bool IsOnWarehouse;
switch (onWarehouseField)
{
case "x":
IsOnWarehouse = true;
break;
case "под заказ":
IsOnWarehouse = false;
break;
default:
IsOnWarehouse = false;
break;
}
string priceField = row.Field("Цена брутто \nЕВРО\nбез НДС")
.GetString();
if (!decimal.TryParse(priceField, out decimal price))
{
price = 0.0M;
}
return new Product(productSkus.First())
{
ProductLines = new List<string>() { productLine },
Name = productName,
DeprecatedSkus = deprecatedSkus.ToList(),
ProductMeasure = productMeasure,
DeliveryMakeUp = productWarehouseCount,
IsOnWarehouse = IsOnWarehouse,
Price = price
};
}
}
}