From de1405a8ada3105b56be077ba02c436ab1cf1660 Mon Sep 17 00:00:00 2001
From: Guilherme Muniz Santos <g.,muniz@k5factory.com>
Date: Tue, 25 Feb 2025 17:16:06 +0100
Subject: [PATCH] Server Value

---
 src/Firebase/ServerValue.cs | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 src/Firebase/ServerValue.cs

diff --git a/src/Firebase/ServerValue.cs b/src/Firebase/ServerValue.cs
new file mode 100644
index 0000000..e92e2dd
--- /dev/null
+++ b/src/Firebase/ServerValue.cs
@@ -0,0 +1,30 @@
+using System.Collections.Generic;
+
+namespace Firebase.Database
+{
+    /// <summary>
+    /// Values that can be used to instruct the Firebase Database to take action based on server value
+    /// </summary>
+    public static class ServerValue
+    {
+        private const string SERVER_VALUE_KEY = ".sv";
+        private const string TIME_STAMP_KEY = "timestamp";
+
+        /// <summary>
+        /// Increments or decreases a number in server side
+        /// e.g.: valueInFirebaseDatabase = 3
+        /// Sending { "valueInFirebaseDatabase", ServerValue.Increment(-1) } 
+        /// results in valueInFirebaseDatabase = 2
+        /// </summary>
+        /// <param name="value">the amount you want to increment or decrease(negative values)</param>
+        /// <returns></returns>
+        public static Dictionary<string, object> Increment(double value)
+            => new Dictionary<string, object> { { SERVER_VALUE_KEY, new { increment = value } } };
+            
+        /// <summary>
+        /// Saves the server time as unix timestamp at the moment of the request
+        /// </summary>
+        public static Dictionary<string, object> TimeStamp
+            => new Dictionary<string, object> { { SERVER_VALUE_KEY, TIME_STAMP_KEY } };
+    }
+}