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Models/Entities/XAiConversation.cs

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+using System;
+using System.ComponentModel.DataAnnotations;
+using xModels.Base;
+
+namespace xAiModels.Models.Entities
+{
+    /// <summary>
+    /// Conversation Describe ...
+    /// </summary>
+    public class XAiConversation : XBaseGuidIDEntity
+    {
+        /// <summary>
+        /// User Identifier ...
+        /// </summary>
+        /// <value></value>
+        [Required]
+        [StringLength(255)]
+        public string OwnerId { get; set; }
+
+        /// <summary>
+        /// Title of Conversation ...
+        /// </summary>
+        [Required]
+        [StringLength(255)]
+        public string Title { get; set; }
+
+        /// <summary>
+        /// Created Time ...
+        /// </summary>
+        public DateTime CreatedOn { get; set; }
+
+        /// <summary>
+        /// Updated Time ...
+        /// </summary>
+        public DateTime UpdatedAt { get; set; }
+
+        /// <summary>
+        /// Project ID ...
+        /// </summary>
+        [Required]
+        public Guid ProjectId { get; set; }
+    }
+}

Models/Entities/XAiMessage.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using xAiModels.Constants;
+using xCommons.Extensions;
+using xModels.Base;
+
+namespace xAiModels.Models.Entities
+{
+    /// <summary>
+    /// Message Model of Ai ... 
+    /// </summary>
+    public class XAiMessage : XBaseGuidIDEntity
+    {
+        /// <summary>
+        /// User Identifier ...
+        /// </summary>
+        /// <value></value>
+        [Required]
+        [StringLength(255)]
+        public string OwnerId { get; set; }
+
+        /// <summary>
+        /// Message of Chat ...
+        /// </summary>
+        [Required]
+        public string Content { get; set; }
+
+        /// <summary>
+        /// Role of Message ...
+        /// </summary>
+        public XAiChatRole Role { get; set; }
+
+        /// <summary>
+        /// Created Time ...
+        /// </summary>
+        public DateTime CreatedOn { get; set; }
+
+        /// <summary>
+        /// Updated Time ...
+        /// </summary>
+        public DateTime UpdatedAt { get; set; }
+
+        /// <summary>
+        /// Conversation Id ...
+        /// </summary>
+        [StringLength(255)]
+        public Guid ConversationId { get; set; }
+
+        //
+        #region Meta Data Property ...
+        private string _metadata;
+
+        /// <summary>
+        /// Meta Data of Message ...
+        /// </summary>
+        [NotMapped]
+        public IDictionary<string, object> Metadata { get; private set; } = null;
+
+        /// <summary>
+        /// Meta Data of MEssage in Json ... 
+        /// </summary>
+        public string MeatDatas
+        {
+            //
+            get => _metadata;
+
+            //
+            set
+            {
+                //
+                // Converts Json String to Dictionary ...
+                if (!value.IsNullOrEmpty())
+                {
+                    Metadata = value.FromJSON<IDictionary<string, object>>();
+                }
+
+                //
+                _metadata = value;
+            }
+        }
+        #endregion        
+    }
+}

Models/Entities/XAiProject.cs

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+using System;
+using System.ComponentModel.DataAnnotations;
+using xModels.Base;
+
+namespace xAiModels.Models.Entities
+{
+    /// <summary>
+    /// Describe a Project ...
+    /// </summary>
+    public class XAiProject : XBaseGuidIDEntity
+    {
+        /// <summary>
+        /// User Identifier ...
+        /// </summary>
+        /// <value></value>
+        [Required]
+        [StringLength(255)]
+        public string OwnerId { get; set; }
+
+        /// <summary>
+        /// Title of Project ...
+        /// </summary>
+        [Required]
+        [StringLength(255)]
+        public string Title { get; set; }
+
+        /// <summary>
+        /// Description of Project ...
+        /// </summary>
+        [StringLength(1000)]
+        public string Description { get; set; }
+
+        /// <summary>
+        /// a Prompt for Project Start ...
+        /// </summary>
+        public string Prompt { get; set; }
+
+        /// <summary>
+        /// Created Time ...
+        /// </summary>
+        public DateTime CreatedOn { get; set; }
+
+        /// <summary>
+        /// Updated Time ...
+        /// </summary>
+        public DateTime UpdatedAt { get; set; }
+    }
+}