using HospitalContracts.ViewModels;
using Newtonsoft.Json;
using System.Net.Http.Headers;
using System.Text;

namespace HospitalWebApp
{
	/// <summary>
	/// API-клиент
	/// </summary>
	public static class APIClient
	{
		/// <summary>
		/// Http-клиент
		/// </summary>
		private static readonly HttpClient _client = new();

		/// <summary>
		/// Авторизованный доктор
		/// </summary>
		public static DoctorViewModel? Doctor { get; set; } = null;

		/// <summary>
		/// Подключение
		/// </summary>
		/// <param name="configuration"></param>
		public static void Connect(IConfiguration configuration)
		{
			_client.BaseAddress = new Uri(configuration["IPAddress"]);
			_client.DefaultRequestHeaders.Accept.Clear();
			_client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
		}

		/// <summary>
		/// Get-запрос
		/// </summary>
		/// <typeparam name="T"></typeparam>
		/// <param name="requestUrl"></param>
		/// <returns></returns>
		/// <exception cref="Exception"></exception>
		public static T? GetRequest<T>(string requestUrl)
		{
			var response = _client.GetAsync(requestUrl);

			var result = response.Result.Content.ReadAsStringAsync().Result;
			if (response.Result.IsSuccessStatusCode)
			{
				return JsonConvert.DeserializeObject<T>(result);
			}
			else
			{
				throw new Exception(result);
			}
		}

		/// <summary>
		/// Post-запрос
		/// </summary>
		/// <typeparam name="T"></typeparam>
		/// <param name="requestUrl"></param>
		/// <param name="model"></param>
		/// <exception cref="Exception"></exception>
		public static void PostRequest<T>(string requestUrl, T model)
		{
			var json = JsonConvert.SerializeObject(model);
			var data = new StringContent(json, Encoding.UTF8, "application/json");

			var response = _client.PostAsync(requestUrl, data);

			var result = response.Result.Content.ReadAsStringAsync().Result;
			if (!response.Result.IsSuccessStatusCode)
			{
				throw new Exception(result);
			}
		}
	}
}