1 files changed, 93 insertions, 0 deletions
diff --git a/samples/IrcChatSystem/ChatClientApp/Client/ClientHelper.cs b/samples/IrcChatSystem/ChatClientApp/Client/ClientHelper.cs
new file mode 100644
index 0000000..9b417db
--- /dev/null
+++ b/samples/IrcChatSystem/ChatClientApp/Client/ClientHelper.cs
@@ -0,0 +1,93 @@
+using System.IO;
+using System.Media;
+using System.Reflection;
+using System.Runtime.Serialization.Formatters.Binary;
+
+namespace Hik.Samples.Scs.IrcChat.Client
+{
+    /// <summary>
+    /// This class includes come helper methods that are using in chat client.
+    /// </summary>
+    public static class ClientHelper
+    {
+        /// <summary>
+        /// Gets the directory of executing assembly.
+        /// </summary>
+        /// <returns>Current directory</returns>
+        public static string GetCurrentDirectory()
+        {
+            return (new FileInfo(Assembly.GetExecutingAssembly().Location)).Directory.FullName;
+        }
+
+        /// <summary>
+        /// Gets the size of a file as bytes
+        /// </summary>
+        /// <param name="filePath">Path of file</param>
+        /// <returns>Size of file</returns>
+        public static long GetFileSize(string filePath)
+        {
+            using (var file = File.Open(filePath, FileMode.Open))
+            {
+                var lengthOfFile = file.Length;
+                file.Close();
+                return lengthOfFile;
+            }
+        }
+
+        /// <summary>
+        /// Serializes an object and writes it to a file.
+        /// Uses .NET binary serialization.
+        /// </summary>
+        /// <param name="obj">object to be serialized</param>
+        /// <param name="filePath">Path of file to serialize</param>
+        /// <returns>bytes of object</returns>
+        public static void SerializeObjectToFile(object obj, string filePath)
+        {
+            using (var file = new FileStream(filePath, FileMode.Create))
+            {
+                new BinaryFormatter().Serialize(file, obj);
+                file.Flush();
+            }
+        }
+
+        /// <summary>
+        /// Deserializes an object from a file.
+        /// Uses .NET binary deserialization.
+        /// </summary>
+        /// <param name="filePath">Path of file to deserialize</param>
+        /// <returns>deserialized object</returns>
+        public static object DeserializeObjectFromFile(string filePath)
+        {
+            using (var file = new FileStream(filePath, FileMode.Open, FileAccess.Read))
+            {
+                return new BinaryFormatter().Deserialize(file);
+            }
+        }
+
+        /// <summary>
+        /// Plays incoming message sound (if sound is on).
+        /// </summary>
+        public static void PlayIncomingMessageSound()
+        {
+            if (!UserPreferences.Current.IsSoundOn)
+            {
+                return;
+            }
+
+            try
+            {
+                var filePath = Path.Combine(GetCurrentDirectory(), @"Sounds\incoming_message.wav");
+                if (!File.Exists(filePath))
+                {
+                    return;
+                }
+
+                new SoundPlayer(filePath).Play();
+            }
+            catch
+            {
+
+            }
+        }
+    }
+}