Mirror Image - Wizard

namespace OOPExercise.Models
{
    using System;
    using System.Collections.Generic;

    public class Wizard
    {
        public static int ReflectionsCount;

        private static readonly Dictionary<int, Wizard> wizardById;

        private Wizard leftWizardReflection;

        private Wizard rightWizardReflection;

        static Wizard()
        {
            ReflectionsCount = -1;
            wizardById = new Dictionary<int, Wizard>();
        }

        private Wizard(string name, int magicalPower)
        {
            this.Id = ++ReflectionsCount;
            this.Name = name;
            this.MagicalPower = magicalPower;
        }

        public event EventHandler ReflectionSpellCasted;

        public event EventHandler FireballSpellCasted;

        public string Name { get; }

        public int Id { get; }

        public int MagicalPower { get; }

        public Wizard this[int index] => wizardById[index];

        public static Wizard Parse(string wizardInfo)
        {
            var wizardArgs = wizardInfo
                .Split(new char[] { }, StringSplitOptions.RemoveEmptyEntries);
            var wizardName = wizardArgs[0];
            var wizardMagicPower = int.Parse(wizardArgs[1]);

            var wizard = new Wizard(wizardName, wizardMagicPower);
            wizardById.Add(wizard.Id, wizard);

            return wizard;
        }

        public void CastReflectionSpell()
        {
            this.ReflectionSpellCasted?.Invoke(this, EventArgs.Empty);
            this.CastReflectionSpell(ref this.leftWizardReflection);
            this.CastReflectionSpell(ref this.rightWizardReflection);
        }

        public void CastFireballSpell()
        {
            this.FireballSpellCasted?.Invoke(this, EventArgs.Empty);
            this.CastFireballSpell(ref this.leftWizardReflection);
            this.CastFireballSpell(ref this.rightWizardReflection);
        }

        private void CastReflectionSpell(ref Wizard wizardReflection)
        {
            if (wizardReflection != null)
            {
                wizardReflection.CastReflectionSpell();
            }
            else
            {
                wizardReflection = new Wizard(this.Name, this.MagicalPower / 2);
                wizardById.Add(wizardReflection.Id, wizardReflection);
            }
        }

        private void CastFireballSpell(ref Wizard wizardReflection)
        {
            wizardReflection?.CastFireballSpell();
        }
    }
}