using Newtonsoft.Json.Linq;

using System;

using System.Linq;

using System.Net.Http;

using System.Text;

using System.Threading.Tasks;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json;

​

static class Ext

{

    public static string SubstringJson(this string value, string start, string end)

    {

        var startIndex = value.IndexOf(start) + start.Length;

        var endIndex = value.IndexOf(end) - startIndex;

​

        var result = value.Substring(startIndex, endIndex).Trim();

        return result.Remove(result.Length - 1);

    }

​

    public static int SubstringId(this string url)

    {

        var result = new Uri(url).AbsolutePath.Split('-').FirstOrDefault()?.Remove(0, 2);

        return int.Parse(result);

    }

}

​

public class Program

{   

        static readonly HttpClient client = new HttpClient();

        private static async Task<JObject> GetJsonAsync(string url)

        {

            var html = await client.GetStringAsync(url);

            var jsonString = html.SubstringJson("window.ApolloCacheState =", "window.SPAConfig");

            return JObject.Parse(jsonString);

        }

       private async static Task ParseItem(string itemUrl)

        {

            var id = itemUrl.SubstringId();

​

            var json = await GetJsonAsync(itemUrl);

            var product = json[$"Product:{id}"];

            var Product = JsonConvert.DeserializeObject<Product>(product.ToString());

            var companyId = product["company"]["id"];

            var company = json[$"{companyId}"];

            var Company = JsonConvert.DeserializeObject<Company>(company.ToString());

            var builder = new StringBuilder();

            builder.AppendLine($"{Product.Name}");

​

            builder.AppendLine($"Картинки");

            foreach(var image in Product.Images.Json)

            {

                builder.AppendLine($"{image}");

            }

            builder.AppendLine($"Цена {Product.Price} {Product.PriceCurrencyLocalized} ({Product.PriceUsd} usd.) ");

            builder.AppendLine($"Компания:{Company.Name} г.{Company.City}");

            builder.AppendLine($"Контакт: {Company.ContactPerson} {Company.Phone} {Company.WebSite}");

​

            Console.WriteLine(builder);

        }

        static async Task Main()

        {

​

            await ParseItem("https://prom.ua/p1097470680-halat-zhenskij-dlinnyj.html");

            Console.ReadKey();

        }

}