using ChatRoomContract;
using NLog;
using Bogus;

namespace Moderator;

internal class Moderator
{
    /// <summary>
	/// Logger for this class.
	/// </summary>
    Logger log = LogManager.GetCurrentClassLogger();

    /// <summary>
	/// Configures logging subsystem.
	/// </summary>
	private void ConfigureLogging()
    {
        var config = new NLog.Config.LoggingConfiguration();

        var console =
            new NLog.Targets.ConsoleTarget("console")
            {
                Layout = @"${date:format=HH\:mm\:ss}|${level}| ${message} ${exception}"
            };
        config.AddTarget(console);
        config.AddRuleForAllLevels(console);

        LogManager.Configuration = config;
    }

    /// <summary>
    /// Run with a given service
    /// </summary>
    /// <param name="chatRoom">Chat room service</param>
    private void RunConnection(IChatRoomService chatRoom)
    {
        var faker = new Faker("en");

        var name = faker.Name.FullName();
        int clientId = chatRoom.RegisterClient(name);
        log.Info($"Registered with client id {clientId}");

        Console.Title = $"Moderator | {name} | {clientId}";

        while (true)
        {
            var message = chatRoom.GetNewMessage();
            if (message != null)
            {
                log.Info($"Checking message ({message.id}): {message.contents}");
                Thread.Sleep(500);

                if (message.needsToBeCensored)
                {
                    chatRoom.RejectMessage(message.id);
                }
                else
                {
                    chatRoom.ApproveMessage(message.id);
                }
            }

            Thread.Sleep(1 * 1000);
        }
    }

    /// <summary>
    /// Main loop
    /// </summary>
    private void Run()
    {
        ConfigureLogging();

        while (true)
        {
            var chatRoom = new ChatRoomClient(Config.CreateConnection(), Config.ExchangeName, Config.CreateClientQueueName(), Config.ServerQueueName);

            try
            {
                RunConnection(chatRoom);
            }
            catch (Exception e)
            {
                //log whatever exception to console
                log.Warn(e, "Unhandled exception caught. Will restart main loop.");

                //prevent console spamming
                Thread.Sleep(2000);
            }
        }
    }
    
    /// <summary>
    /// Entry point
    /// </summary>
    static void Main()
    {
        var self = new Moderator();
        self.Run();
    }
}