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VideoBrowser/Core/YoutubeAuthentication.cs

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+namespace VideoBrowser.Core
+{
+    using System;
+
+    /// <summary>
+    /// Defines the <see cref="YoutubeAuthentication" />
+    /// </summary>
+    public class YoutubeAuthentication
+    {
+        #region Constructors
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="YoutubeAuthentication"/> class.
+        /// </summary>
+        /// <param name="username">The username<see cref="string"/></param>
+        /// <param name="password">The password<see cref="string"/></param>
+        /// <param name="twoFactor">The twoFactor<see cref="string"/></param>
+        public YoutubeAuthentication(string username, string password, string twoFactor)
+        {
+            if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(password))
+            {
+                throw new Exception($"{this.GetType().Name}: {nameof(username)} and {nameof(password)} can't be empty or null.");
+            }
+
+            this.Username = username;
+            this.Password = password;
+            this.TwoFactor = twoFactor;
+        }
+
+        #endregion Constructors
+
+        #region Properties
+
+        /// <summary>
+        /// Gets the Password
+        /// </summary>
+        public string Password { get; private set; }
+
+        /// <summary>
+        /// Gets the TwoFactor
+        /// </summary>
+        public string TwoFactor { get; private set; }
+
+        /// <summary>
+        /// Gets the Username
+        /// </summary>
+        public string Username { get; private set; }
+
+        #endregion Properties
+
+        #region Methods
+
+        /// <summary>
+        /// The ToCmdArgument
+        /// </summary>
+        /// <returns>The <see cref="string"/></returns>
+        public string ToCmdArgument()
+        {
+            var twoFactor = this.TwoFactor;
+            if (!string.IsNullOrEmpty(twoFactor))
+            {
+                twoFactor = string.Format(Commands.TwoFactor, twoFactor);
+            }
+
+            return string.Format(Commands.Authentication,
+                this.Username,
+                this.Password) + twoFactor;
+        }
+
+        #endregion Methods
+    }
+}