///
/// Copyright (c) 2019 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using System.Xml.Serialization;
using Config.Entities;
using TBF.BenchControl.Generic;

namespace TBF.BenchControl.BackupAndSecurity.Default
{
	/// <summary>
    /// Holds backup and security options - serializable configuration.
	/// </summary>
	public class ComponentCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider
	{
		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(ComponentCfg) })[0];
        public override XmlSerializer GetSerializer() { return Serializer; }

		public IComponentCfgCtrl GetControl() { return new Configs.ParamsProvider.ComponentCfgCtrl(this, null); }

		///
		/// Serialized parameters 
		///
		public int MinPasswdLength;
		public int PasswdExpirationPeriodDays;	/// 0 = validity is not limited

		/// Private parameterless constructor invoked by all other (public) constructors
		ComponentCfg() {}

        public ComponentCfg(IComponentFactory factory)
            : this()
        {
            Factory = factory;
            Name = "BackupAndSecurity";
            ParentName = string.Empty;
            InitializeAll();
        }

        public string ComponentName { get { return Name; } }

 		public void InitializeAll()
		{
			MinPasswdLength = 6;
            PasswdExpirationPeriodDays = 0;
        }

        string[] paramNames = new string[]
		{
            "Minimum password length (characters)",
            "Password expiration period (days)",
        };
        public string ParamName(int i) { return paramNames[i]; }
        public int ParamsCount() { return paramNames.Length; }

        public IList<string> ParamValues(int i)
        {
            return null;
        }

        public string ToString(int i)
        {
            if (i == -1)
            {
                return string.Format("{0}: Min. password length = {1} characters, Password expiration period = {2} days", Name, MinPasswdLength, PasswdExpirationPeriodDays);
            }

            switch (i)
            {
                case 0: return MinPasswdLength.ToString();
                case 1: return PasswdExpirationPeriodDays.ToString();;
                default: return string.Empty;
            }
        }

        public CfgUpdateFlags UpdateParam(int i, string strValue)
        {
            switch (i)
            {
                case 0: MinPasswdLength = int.Parse(strValue); 			return CfgUpdateFlags.RestartRqrd;
                case 1: PasswdExpirationPeriodDays = int.Parse(strValue); return CfgUpdateFlags.RestartRqrd;
                default: return CfgUpdateFlags.None;
            }
        }

        public bool ValidateParam(int i, string strValue, out string message)
        {
            message = string.Empty;
            int idummy;

            switch (i)
            {
                case 0:
                case 1:
				    /// Positive integers and zero are allowed
                    if (int.TryParse(strValue, out idummy) && (idummy >= 0)) return true;
                    break;
                default:
                    message = "Invalid index";
                    return false;
            }

            message = ParamName(i) + " is invalid";
            return false;
        }

        void CopyContentTo(ComponentCfg prms)
        {
            prms.MinPasswdLength = this.MinPasswdLength;
            prms.PasswdExpirationPeriodDays = this.PasswdExpirationPeriodDays;
        }

        public Config.Entities.IParamsProvider Clone()
        {
            ComponentCfg pars = new ComponentCfg();
            CopyContentTo(pars);
            return pars;
        }

        public bool UpdateEmbeddedDbEntity()
        {
            return true;    /// =OK, do nothing
        }
    }
}