using Microsoft.Azure.SignalR.Management;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using StackExchange.Redis;
using System;
using System.Collections.Concurrent;

namespace TEAMModelOS.SDK.DI
{
    public class AzureSignalRFactory
    {
        private readonly IServiceProvider _services;
        private readonly IOptionsMonitor<AzureSignalRFactoryOptions> _optionsMonitor;
        private ConcurrentDictionary<string, ServiceManager> ServiceManagers { get; } = new();
        private readonly ILogger _logger;

        public AzureSignalRFactory(IServiceProvider services, IOptionsMonitor<AzureSignalRFactoryOptions> optionsMonitor, ILogger<AzureSignalRFactory> logger)
        {
            _services = services ?? throw new ArgumentNullException(nameof(services));
            _optionsMonitor = optionsMonitor ?? throw new ArgumentNullException(nameof(optionsMonitor));
            _logger = logger;
        }

        public ServiceManager GetServiceManager(string name = "Default")
        {
            try
            {
                var serviceManager = ServiceManagers.GetOrAdd(name, x =>
                // TODO(Mickey) : Signalr SDK 1.10.0之後，aud會無法擴充，會變成asrs.u.aud，會造成無法使用restAPI，故先降回舊版
                new ServiceManagerBuilder().WithOptions(option =>
                {
                    option.ConnectionString = _optionsMonitor.Get(name).SignalRConnectionString;
                    option.ServiceTransportType = ServiceTransportType.Persistent;
                }).BuildServiceManager());

                return serviceManager;
            }
            catch (Exception e)
            {
                _logger?.LogWarning(e, e.Message);
                return null;
            }
        }

    }
}