Project Init

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Co-Authored-By: Claude <noreply@anthropic.com>

colaflow-api/src/Shared/ColaFlow.Shared.Kernel/Common/ValueObject.cs

@@ -0,0 +1,46 @@
+namespace ColaFlow.Shared.Kernel.Common;
+
+/// <summary>
+/// Base class for all value objects
+/// </summary>
+public abstract class ValueObject
+{
+    protected abstract IEnumerable<object> GetAtomicValues();
+
+    public override bool Equals(object? obj)
+    {
+        if (obj == null || obj.GetType() != GetType())
+            return false;
+
+        var other = (ValueObject)obj;
+        return GetAtomicValues().SequenceEqual(other.GetAtomicValues());
+    }
+
+    public override int GetHashCode()
+    {
+        return GetAtomicValues()
+            .Aggregate(1, (current, obj) =>
+            {
+                unchecked
+                {
+                    return (current * 23) + (obj?.GetHashCode() ?? 0);
+                }
+            });
+    }
+
+    public static bool operator ==(ValueObject? a, ValueObject? b)
+    {
+        if (a is null && b is null)
+            return true;
+
+        if (a is null || b is null)
+            return false;
+
+        return a.Equals(b);
+    }
+
+    public static bool operator !=(ValueObject? a, ValueObject? b)
+    {
+        return !(a == b);
+    }
+}