// (c) Copyright Ascensio System SIA 2010-2022
//
// This program is a free software product.
// You can redistribute it and/or modify it under the terms
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
// any third-party rights.
//
// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For details, see
// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
//
// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
//
// The  interactive user interfaces in modified source and object code versions of the Program must
// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
//
// Pursuant to Section 7(b) of the License you must retain the original Product logo when
// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
// trademark law for use of our trademarks.
//
// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode

namespace ASC.FederatedLogin.Helpers;

[Singletone]
public class RequestHelper
{
    private readonly IHttpClientFactory _httpClientFactory;

    public RequestHelper(IHttpClientFactory httpClientFactory)
    {
        _httpClientFactory = httpClientFactory;
    }

    public string PerformRequest(string uri, string contentType = "", string method = "GET", string body = "", Dictionary<string, string> headers = null, int timeout = 30000)
    {
        if (string.IsNullOrEmpty(uri))
        {
            throw new ArgumentNullException(nameof(uri));
        }

        var request = new HttpRequestMessage
        {
            RequestUri = new Uri(uri),
            Method = new HttpMethod(method)
        };

        var httpClient = _httpClientFactory.CreateClient();
        httpClient.Timeout = TimeSpan.FromMilliseconds(timeout);

        if (headers != null)
        {
            foreach (var key in headers.Keys)
            {
                request.Headers.Add(key, headers[key]);
            }
        }

        var bytes = Encoding.UTF8.GetBytes(body ?? "");
        if (request.Method != HttpMethod.Get && bytes.Length > 0)
        {
            request.Content = new ByteArrayContent(bytes, 0, bytes.Length);
            if (!string.IsNullOrEmpty(contentType))
            {
                request.Content.Headers.ContentType = new MediaTypeHeaderValue(contentType);
            }
        }

        using var response = httpClient.Send(request);
        using var stream = response.Content.ReadAsStream();
        if (stream == null)
        {
            return null;
        }

        using var readStream = new StreamReader(stream);

        return readStream.ReadToEnd();
    }
}