using MessengerApi.Configuration.Model.Persistence.Base;
using MessengerApi.Configuration.Parsers;
using MessengerApi.Configuration.Sources.Environment;
using MessengerBroker.Configuration.Model.Servers;
using MessengerBroker.Configuration.Parsers;
using MessengerBroker.Configuration.Sources.Environment;

namespace MessengerBroker.Configuration.Model
{
    public class BrokerConfiguration
    {
        public PersistenceConfiguration ApiPersistenceConfiguration { get; set; }

        public PersistenceConfiguration BrokerPersistenceConfiguration { get; set; }

        /// <summary>
        /// List of proxies that are trusted to provide forwarding headers.
        /// </summary>
        public string[] Proxies { get; set; }

        public Guid BrokerId { get; set; }

        public MasterServer[] MasterServers { get; set; }

        public SlaveServer[] SlaveServers { get; set; }

        public bool HousekeepingEnabled { get; set; }

        public int HousekeepingMessageAgeInMinutes { get; set; }

        public BrokerConfiguration(
            PersistenceConfiguration apiPersistenceConfiguration,
            PersistenceConfiguration broPersistenceConfiguration,
            Guid brokerId,
            MasterServer[] masters,
            SlaveServer[] slaves)
        {
            this.ApiPersistenceConfiguration = apiPersistenceConfiguration;
            this.BrokerPersistenceConfiguration = broPersistenceConfiguration;
            this.BrokerId = brokerId;
            this.MasterServers = masters;
            this.SlaveServers = slaves;
            this.Proxies = [];
            this.HousekeepingEnabled = true;
            this.HousekeepingMessageAgeInMinutes = 180;
        }

        public BrokerConfiguration(IEnvironmentConfigurationSource config) : this(
            ApiEnvironmentPersistenceConfigurationParser.Parse(config),
            EnvironmentPersistenceConfigurationParser.Parse(config),
            config.GetValue<Guid>(Constants.EnvironmentVariables.BROKER_ID),
            MasterServerParser.Parse(config.GetValue<string>(Constants.EnvironmentVariables.MASTER_SERVERS)),
            SlaveServerParser.Parse(config.GetValue<string>(Constants.EnvironmentVariables.SLAVE_SERVERS)))
        {
            if(config.HasKey(Constants.EnvironmentVariables.HOUSEKEEPING_ENABLED))
            {
                this.HousekeepingEnabled = config.GetValue<bool>(Constants.EnvironmentVariables.HOUSEKEEPING_ENABLED);
                this.HousekeepingMessageAgeInMinutes = config.GetValue<int>(Constants.EnvironmentVariables.HOUSEKEEPING_MESSAGE_AGE_IN_MINUTES);
            }
        }
    }
}