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using AngleSharp.Dom;
using ExcelDna.Integration;
using Newtonsoft.Json;
using System;
using System.Globalization;
using System.Linq;
using System.Runtime.Caching;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
namespace Rehau.Sku.Assist
{
public enum ProductField
{
Name,
Id,
Price
}
static class SkuAssist
{
public static async Task<IProduct> GetProduct(string request)
{
Uri uri = request.ConvertToUri();
Task<string> contentTask = Task.Run(() => HttpClientUtil.GetContentByUriAsync(uri));
Task<IDocument> documentTask = await contentTask.ContinueWith(content => HttpClientUtil.ContentToDocAsync(content));
return GetProduct(documentTask.Result);
}
public static IProduct GetProduct(IDocument d)
{
string script = d.Scripts
.Where(s => s.InnerHtml.Contains("dataLayer"))
.First()
.InnerHtml;
string json = script
.Substring(script.IndexOf("push(") + 5)
.TrimEnd(new[] { ')', ';', '\n', ' ' });
if (!json.Contains("impressions"))
return null;
StoreResponce storeResponse = JsonConvert.DeserializeObject<StoreResponce>(json);
IProduct product = storeResponse
.Ecommerce
.Impressions
.Where(p => Regex.IsMatch(p.Id, @"\d{11}", RegexOptions.None))
.FirstOrDefault();
return product;
}
public static object GetProduct(string request, ProductField field)
{
IProduct product;
if (MemoryCache.Default.Contains(request))
{
product = MemoryCache.Default[request] as IProduct;
}
else
{
object result = ExcelAsyncUtil.Run("RauName", new[] { request },
delegate
{
Task<IProduct> p = Task.Run(() => GetProduct(request));
return p.Result;
});
if (result == null)
return "Не найдено :(";
if (result.Equals(ExcelError.ExcelErrorNA))
return "Загрузка...";
product = result as IProduct;
MemoryCache.Default.Add(request, product, DateTime.Now.AddMinutes(10));
}
switch (field)
{
case ProductField.Name:
return product.Name;
case ProductField.Id:
return product.Id;
case ProductField.Price:
return double.Parse((string)product.Price, CultureInfo.InvariantCulture);
default:
return ExcelError.ExcelErrorValue;
}
}
}
}
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