using Microsoft.Extensions.DependencyInjection;
using Newtonsoft.Json;
using RhSolutions;
using RhSolutions.AddIn;
using RhSolutions.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;

namespace RhSolutions.Services
{
    public class RhDatabaseClient : IDatabaseClient
    {
        private IServiceProvider serviceProvider;
        public HttpStatusCode StatusCode { get; private set; }

        public RhDatabaseClient(IServiceProvider provider)
        {
            this.serviceProvider = provider;    
        }

        public async Task<IEnumerable<Product>> GetProducts(string line)
        {
            string request;

            if (Sku.TryParse(line, out var skus))
            {
                request = @"https://rh.cebotari.ru/api/products/" + skus.FirstOrDefault().ToString();
            }

            else
            {
                request = @"https://rh.cebotari.ru/api/search?query=" + line;
            }

            var client = serviceProvider.GetRequiredService<HttpClient>();
            var response = await client.GetAsync(request);

            try
                {
                response.EnsureSuccessStatusCode();
                string json = await response.Content.ReadAsStringAsync();
                return JsonConvert.DeserializeObject<IEnumerable<Product>>(json) ?? Enumerable.Empty<Product>();
            }

            catch
            {
                StatusCode = response.StatusCode;
            }

            return Enumerable.Empty<Product>();
        }
    }
}