initial commit

Core/Domain/Common/BaseEntity.cs

@@ -0,0 +1,48 @@
+namespace Domain.Common;
+
+public class BaseEntity : IHasSequentialId, IHasIsDeleted, IHasAudit
+{
+    public string Id { get; set; } = null!;
+    public bool IsDeleted { get; set; }
+    public DateTime? CreatedAtUtc { get; set; }
+    public string? CreatedById { get; set; }
+    public DateTime? UpdatedAtUtc { get; set; }
+    public string? UpdatedById { get; set; }
+
+    public BaseEntity()
+    {
+        Id = GenerateSequentialGuid();
+        IsDeleted = false;
+    }
+
+
+
+    private static readonly object _lock = new object();
+
+    private string GenerateSequentialGuid()
+    {
+        byte[] guidArray = Guid.NewGuid().ToByteArray();
+
+        DateTime baseDate = new DateTime(1900, 1, 1);
+        DateTime now = DateTime.UtcNow;
+
+        TimeSpan timeSpan = now - baseDate;
+        byte[] daysArray = BitConverter.GetBytes(timeSpan.Days);
+        byte[] msecsArray = BitConverter.GetBytes((long)(timeSpan.TotalMilliseconds % 86400000));
+
+        if (BitConverter.IsLittleEndian)
+        {
+            Array.Reverse(daysArray);
+            Array.Reverse(msecsArray);
+        }
+
+        lock (_lock)
+        {
+            Array.Copy(daysArray, daysArray.Length - 2, guidArray, guidArray.Length - 6, 2);
+            Array.Copy(msecsArray, msecsArray.Length - 4, guidArray, guidArray.Length - 4, 4);
+        }
+
+        return new Guid(guidArray).ToString();
+    }
+}
+

Core/Domain/Common/Constants.cs

@@ -0,0 +1,54 @@
+namespace Domain.Common;
+
+public static class Constants
+{
+    public static class LengthConsts
+    {
+        public const int S = 50;
+        public const int M = 255;
+        public const int L = 2000;
+        public const int XL = 4000;
+    }
+    public static class NameConsts
+    {
+        public const int MinLength = 2;
+        public const int MaxLength = LengthConsts.M;
+    }
+    public static class CodeConsts
+    {
+        public const int MinLength = 1;
+        public const int MaxLength = LengthConsts.S;
+    }
+    public static class DescriptionConsts
+    {
+        public const int MaxLength = LengthConsts.XL;
+    }
+    public static class EmailConsts
+    {
+        public const int MinLength = 6;
+        public const int MaxLength = LengthConsts.M;
+    }
+    public static class IdConsts
+    {
+        public const int MaxLength = LengthConsts.S;
+    }
+    public static class PasswordConsts
+    {
+        public const int MinLength = 6;
+        public const int MaxLength = LengthConsts.M;
+    }
+    public static class PathConsts
+    {
+        public const int MaxLength = LengthConsts.M;
+    }
+    public static class TokenConsts
+    {
+        public const int MaxLength = LengthConsts.XL;
+        public const double ExpiryInDays = 30;
+    }
+    public static class UserIdConsts
+    {
+        public const int MaxLength = 450;
+    }
+}
+

Core/Domain/Common/IHasAudit.cs

@@ -0,0 +1,9 @@
+namespace Domain.Common;
+
+public interface IHasAudit
+{
+    public DateTime? CreatedAtUtc { get; set; }
+    public string? CreatedById { get; set; }
+    public DateTime? UpdatedAtUtc { get; set; }
+    public string? UpdatedById { get; set; }
+}

Core/Domain/Common/IHasIsDeleted.cs

@@ -0,0 +1,7 @@
+namespace Domain.Common;
+
+public interface IHasIsDeleted
+{
+    bool IsDeleted { get; }
+}
+

Core/Domain/Common/IHasSequentialId.cs

@@ -0,0 +1,6 @@
+namespace Domain.Common;
+
+public interface IHasSequentialId
+{
+    string Id { get; set; }
+}