using EgwControlCenter.Core.DTO;
using EgwControlCenter.Core.Models;
using EgwCoreLib.Utils;
using Newtonsoft.Json;
using NLog;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace EgwControlCenter.Core
{
    public class AppControlService : IAppControlService
    {
        #region Public Constructors

        public AppControlService()
        {
            try
            {
                Assembly assembly = Assembly.GetExecutingAssembly();
                string startDir = Path.GetDirectoryName(assembly.Location)!;
                ConfDir = startDir;
                //DataDir = Environment.GetEnvironmentVariable("ClickOnce_DataDirectory") ?? startDir;
                string appData = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
                if (string.IsNullOrEmpty(appData))
                {
                    appData = "C:\\ProgramData";
                }
                DataDir = Path.Combine(appData, "EgalWare", "AppControlCenter");
                Log.Trace($"appData: {appData} | EnvData: {Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData)}");
                // verifico esistenza directory...
                Directory.CreateDirectory(DataDir);
                CurrCheck = new ReleaseChecker(ConfDir, DataDir);
                Log.Trace($"Folder Setup | {ConfDir} | {DataDir}");
            }
            catch (Exception exc)
            {
                Log.Error($"Error in AppControlService.init:{Environment.NewLine}{exc}");
            }
        }

        #endregion Public Constructors

        #region Public Events

        /// <summary>
        /// Evento update configurazione
        /// </summary>
        public event Action EA_ConfigUpdated = null!;

        /// <summary>
        /// Evento calling a remote in corso
        /// </summary>
        public event Action EA_RemoteCalling = null!;

        /// <summary>
        /// Evento udpate status controlli
        /// </summary>
        public event Action EA_StatusUpdated = null!;

        #endregion Public Events

        #region Public Properties

        public string AppKey
        {
            get => CurrCheck.CurrPatrolCont.AppKey;
            set
            {
                if (CurrCheck.CurrPatrolCont.AppKey != value)
                {
                    // verifico ammissibilità
                    CurrCheck.CurrPatrolCont.AppKey = value;
                    ReportConfigUpd();
                }
            }
        }

        /// <summary>
        /// verifica autorizzazione al canale, ovvero
        /// - deve avere tutte le chiavi/registri di comunicazione
        /// - CodImpiego e AppKey devono essere validate
        /// </summary>
        public bool ChannelAuth
        {
            get
            {
                // in primis deve avere i dati di configurazione
                bool answ = CurrCheck.CurrPatrolCont.HasCommData;
                if (answ)
                {
                    // verifico CodImpiego locale sia valido
                    answ = CurrCheck.CurrPatrolCont.CodImpiego == SubLicManager.CodImpiego();
                    // verifica sia valida (scadenza a tempo da ultimo controllo) chiave auth in remoto
                    if (answ)
                    {
                    }
                }
                return answ;
            }
        }

        public bool CloudCallActive
        {
            get => cloudCallActive;
            set
            {
                if (cloudCallActive != value)
                {
                    cloudCallActive = value;
                    ReportRemoteCall();
                }
            }
        }

        public string CodApp
        {
            get => CurrCheck.CurrPatrolCont.CodApp;
            set
            {
                if (CurrCheck.CurrPatrolCont.CodApp != value)
                {
                    // verifico ammissibilità
                    CurrCheck.CurrPatrolCont.CodApp = value;
                    ReportConfigUpd();
                }
            }
        }

        public string CodImpiego
        {
            get => CurrCheck.CurrPatrolCont.CodImpiego;
            set
            {
                if (CurrCheck.CurrPatrolCont.CodImpiego != value)
                {
                    // verifico ammissibilità
                    CurrCheck.CurrPatrolCont.CodImpiego = value;
                    ReportConfigUpd();
                }
            }
        }

        public List<VersStatusDTO> ListAppStatus
        {
            get => CurrCheck.ListAppStatus;
            set
            {
                CurrCheck.ListAppStatus = value;
                ReportStatusUpd();
            }
        }

        public string MainKey
        {
            get => CurrCheck.CurrPatrolCont.MainKey;
            set
            {
                if (CurrCheck.CurrPatrolCont.MainKey != value)
                {
                    // verifico ammissibilità
                    CurrCheck.CurrPatrolCont.MainKey = value;
                    ReportConfigUpd();
                }
            }
        }

        public int RefreshPeriod
        {
            get => CurrCheck.CurrPatrolCont.RefreshIntSec;
            set
            {
                if (CurrCheck.CurrPatrolCont.RefreshIntSec != value)
                {
                    // verifico ammissibilità
                    CurrCheck.CurrPatrolCont.RefreshIntSec = value < refPMin ? refPMin : value > refPMax ? refPMax : value;
                    ReportConfigUpd();
                }
            }
        }

        public List<ControlTarget> TargetList
        {
            get => CurrCheck.CurrPatrolCont.TargetList;
            set
            {
                CurrCheck.CurrPatrolCont.TargetList = value;
                ReportConfigUpd();
            }
        }

        /// <summary>
        /// num minuti veto controllo
        /// </summary>
        public int VetoCheck
        {
            get => CurrCheck.CurrPatrolCont.VetoCheckMinutes;
            set
            {
                if (CurrCheck.CurrPatrolCont.VetoCheckMinutes != value)
                {
                    // verifico ammissibilità
                    CurrCheck.CurrPatrolCont.VetoCheckMinutes = value < vetoPMin ? vetoPMin : value > vetoPMax ? vetoPMax : value;
                    ReportConfigUpd();
                }
            }
        }

        #endregion Public Properties

        #region Public Methods

        public async Task<bool> CheckAttivazioni()
        {
            bool fatto = await CurrCheck.CheckAttivazioni();
            return fatto;
        }

        /// <summary>
        /// Effettua un controllo completo (loacele remoto)
        /// </summary>
        /// <param name="doForce">se true esegue anche prima della scadenza veto</param>
        public async Task DoFullCheckAsync(bool doForce)
        {
            CloudCallActive = true;
            // in primis controllo se il remote è ok sennò mi fermo...
            bool remoteOk = await CurrCheck.CheckRemote();
            if (remoteOk)
            {
                // effettua un refresh del controllo status...
                bool locCheckOk = CurrCheck.UpdateLocalStatus(doForce);
                bool remCheckOk = false;
                bool critCheckOk = false;
                if (locCheckOk)
                {
                    remCheckOk = await CurrCheck.CheckRemoteReleases();
                }
                // infine effettua una verifica dello status "release critiche"
                critCheckOk = await CurrCheck.CheckCriticalReport();
                if (remCheckOk || critCheckOk)
                {
                    ReportStatusUpd();
                }
            }
            CloudCallActive = false;
        }

        /// <summary> Effettua rilettura configurazione e setup controlli... </summary
        public void DoReloadConfig()
        {
            try
            {
                CurrCheck = new ReleaseChecker(ConfDir, DataDir);
                Log.Trace($"Riletta config Setup | {ConfDir} | {DataDir}");
            }
            catch (Exception exc)
            {
                Log.Equals($"Eccezione in DoReloadConfig{Environment.NewLine}{exc}");
            }
            ReportConfigUpd();
        }

        /// <summary>
        /// Effettua salvataggio configurazione
        /// </summary>
        public void DoSaveConfig()
        {
            try
            {
                var rawData = JsonConvert.SerializeObject(CurrCheck.CurrPatrolCont, Formatting.Indented);
                if (rawData != null && rawData.Length > 2)
                {
                    File.WriteAllText(CurrCheck.ConfPath, rawData);
                    Log.Trace($"Effettuato salvataggio Config Setup! | {ConfDir} | {DataDir}");
                }
            }
            catch (Exception exc)
            {
                Log.Equals($"Eccezione in DoSaveConfig{Environment.NewLine}{exc}");
            }
            ReportConfigUpd();
        }

        public void ResetConf()
        {
            bool fatto = CurrCheck.ResetConf();
            if (fatto)
            {
                ReportConfigUpd();
                ReportStatusUpd();
            }
        }

        /// <summary>
        /// Reimposta CodImpiego / AppKey da librerie Egw secondo richiesta...
        /// </summary>
        /// <param name="resCodImpiego"></param>
        /// <param name="resAppKey"></param>
        public void ResetSubLic(bool resCodImpiego, bool resAppKey)
        {
            if (resCodImpiego)
            {
                CurrCheck.CurrPatrolCont.CodImpiego = SubLicManager.CodImpiego();
            }
            if (resAppKey)
            {
                CurrCheck.CurrPatrolCont.AppKey = SubLicManager.GenKey(CodApp);
            }
            ReportConfigUpd();
        }

        #endregion Public Methods

        #region Protected Properties

        protected SubLicManager SubLicManager { get; set; } = new SubLicManager();

        #endregion Protected Properties

        #region Private Fields

        /// <summary>
        /// Classe logger
        /// </summary>
        private static Logger Log = LogManager.GetCurrentClassLogger();

        /// <summary>
        /// Valore massimo ammesso refresh sec
        /// </summary>
        private int refPMax = 3600;

        /// <summary>
        /// Valore minimo ammesso refresh sec
        /// </summary>
        private int refPMin = 1;

        /// <summary>
        /// Valore massimo ammesso veto minuti
        /// </summary>
        private int vetoPMax = 14400;

        /// <summary>
        /// Valore minimo ammesso veto minuti
        /// </summary>
        private int vetoPMin = 30;

        #endregion Private Fields

        #region Private Properties

        private bool cloudCallActive { get; set; } = false;
        private string ConfDir { get; set; } = "";
        private ReleaseChecker CurrCheck { get; set; } = null!;
        private string DataDir { get; set; } = "";

        #endregion Private Properties

        #region Private Methods

        private void ReportConfigUpd()
        {
            if (EA_ConfigUpdated != null)
            {
                EA_ConfigUpdated?.Invoke();
            }
        }

        private void ReportRemoteCall()
        {
            if (EA_RemoteCalling != null)
            {
                EA_RemoteCalling?.Invoke();
            }
        }

        private void ReportStatusUpd()
        {
            if (EA_StatusUpdated != null)
            {
                // controllo se almeno 1 app abbia update...
                foreach (var item in ListAppStatus)
                {
                    if (item.HasUpdate)
                    {
                        EA_StatusUpdated?.Invoke();
                        break;
                    }
                }
            }
        }

        #endregion Private Methods
    }
}