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 * 
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 *     following disclaimer. 
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 *     following disclaimer in the documentation and/or other 
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
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using System;
using System.Collections.Generic;

namespace XenAdmin.Actions.NRPE
{
    public class NRPEHostConfiguration : ICloneable, IEquatable<NRPEHostConfiguration>
    {
        public const string XAPI_NRPE_PLUGIN_NAME = "nrpe";
        public const string XAPI_NRPE_STATUS = "status";
        public const string XAPI_NRPE_GET_CONFIG = "get-config";
        public const string XAPI_NRPE_GET_THRESHOLD = "get-threshold";
        public const string XAPI_NRPE_ENABLE = "enable";
        public const string XAPI_NRPE_DISABLE = "disable";
        public const string XAPI_NRPE_SET_CONFIG = "set-config";
        public const string XAPI_NRPE_SET_THRESHOLD = "set-threshold";
        public const string XAPI_NRPE_RESTART = "restart";
        public const string XAPI_NRPE_CONTROL = "control";

        public const string DEBUG_ENABLE = "1";
        public const string DEBUG_DISABLE = "0";

        public const string SSL_LOGGING_ENABLE = "0x2f";
        public const string SSL_LOGGING_DISABLE = "0x00";

        public static readonly string ALLOW_HOSTS_PLACE_HOLDER = Messages.NRPE_ALLOW_HOSTS_PLACE_HOLDER;

        private readonly Dictionary<string, Check> _checkDict = new Dictionary<string, Check>();

        public bool EnableNRPE { get; set; }

        public string AllowHosts { get; set; }

        public bool Debug { get; set; }

        public bool SslLogging { get; set; }

        public Dictionary<string, Check> CheckDict => _checkDict;

        public RetrieveNRPEStatus Status { get; set; }

        public enum RetrieveNRPEStatus
        {
            Retrieving,
            Successful,
            Failed
        }

        public class Check
        {
            public string Name { get; }
            public string WarningThreshold { get; }
            public string CriticalThreshold{ get; }

            public Check(string name, string warningThreshold, string criticalThreshold)
            {
                Name = name;
                WarningThreshold = warningThreshold;
                CriticalThreshold = criticalThreshold;
            }

        }

        public void AddNRPECheck(Check checkItem)
        {
            _checkDict.Add(checkItem.Name, checkItem);
        }

        public bool GetNRPECheck(string name, out Check check)
        {
            return _checkDict.TryGetValue(name, out check);
        }

        public bool Equals(NRPEHostConfiguration other)
        {
            if (EnableNRPE != other.EnableNRPE ||
                !AllowHosts.Equals(other.AllowHosts) ||
                Debug != other.Debug ||
                SslLogging != other.SslLogging)
            {
                return false;
            }
            foreach (KeyValuePair<string, Check> kvp in CheckDict)
            {
                Check CurrentCheck = kvp.Value;
                other.GetNRPECheck(kvp.Key, out Check OriginalCheck);
                if (CurrentCheck != null && OriginalCheck != null
                    && (!CurrentCheck.WarningThreshold.Equals(OriginalCheck.WarningThreshold)
                    || !CurrentCheck.CriticalThreshold.Equals(OriginalCheck.CriticalThreshold)))
                {
                    return false;
                }
            }
            return true;
        }

        public object Clone()
        {
            NRPEHostConfiguration cloned = new NRPEHostConfiguration
            {
                EnableNRPE = EnableNRPE,
                AllowHosts = AllowHosts,
                Debug = Debug,
                SslLogging = SslLogging
            };
            foreach (KeyValuePair<string, Check> kvp in _checkDict)
            {
                Check CurrentCheck = kvp.Value;
                cloned.AddNRPECheck(new Check(CurrentCheck.Name, CurrentCheck.WarningThreshold, CurrentCheck.CriticalThreshold));
            }

            return cloned;
        }
    }
}