using System;
using System.Threading.Tasks;
using System.Threading;
using System.Collections.Generic;
using Newtonsoft.Json.Linq;
namespace raven_integration
{
    public class CredRepo
    {
        static SemaphoreSlim semaphoreSlim = new SemaphoreSlim(1,1);
       // private readonly object valueLock = new object();

        private static Dictionary<string, string> authDict = new Dictionary<string, string>();


        public CredRepo()
        {

        }

        public static async Task<string> GetTokenAsync(string login, string password = null)
        {
            await semaphoreSlim.WaitAsync();
            try{
                if (password == null)
                    password = login;

                if (!authDict.ContainsKey(login))
                {
                    dynamic creds = new JObject();
                    creds.login = login;
                    creds.password = password;

                    ApiResponse a = await Util.PostAsync("auth", null, creds.ToString());
                    //Put this in when having concurrency issue during auth and old style dl token creation during login                
                    // ValidateDataReturnResponseOk(a);

                    authDict[login] = a.ObjectResponse["data"]["token"].Value<string>();
                }
                return authDict[login];
            }
            finally{
                 semaphoreSlim.Release();
            }
        }

        // public uint GetNext()
        // {
        //     lock (valueLock)
        //     {
        //         currentValue += 1;
        //         if (currentValue == 0)
        //             currentValue += 1;
        //         return currentValue;
        //     }
        // }
    }
}