using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;


namespace AyaNova.PlugIn.V8
{
    class util
    {
        const string TEST_ROUTE = "ServerInfo";
        const string API_BASE_ROUTE = "api/v8/";
        static HttpClient client = new HttpClient();
        static string ApiBaseUrl { get; set; }


        /// <summary>
        /// Only a return value of "OK" is ok
        /// </summary>
        /// <param name="serverUrl"></param>
        /// <returns></returns>
        public static async Task<string> TestUrlAsync(string serverUrl)
        {
            if (string.IsNullOrEmpty(serverUrl)) return "Server url required";

            if (!serverUrl.Contains("/api/")) {
                if (!serverUrl.EndsWith("/")) serverUrl+="/";                
                serverUrl += API_BASE_ROUTE;
            }

            //try to connect, ping the server api
            client.BaseAddress = new Uri(serverUrl);
            client.DefaultRequestHeaders.Accept.Clear();
            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

            try
            {
                HttpResponseMessage response = await client.GetAsync(serverUrl + TEST_ROUTE);
                if (response.IsSuccessStatusCode)
                {
                    var ret = await response.Content.ReadAsStringAsync();
                    if (ret.Contains("AyaNova")) return "OK";
                }
                else
                {
                    return "Failed: " + response.StatusCode.ToString();
                }
            }
            catch { return "Failed"; }


            return "failed";
        }

        //eoc

    }
}//ens