version 2

src/GreenHome.Domain/AIQuery.cs

@@ -0,0 +1,78 @@
+namespace GreenHome.Domain;
+
+/// <summary>
+/// AI Query record - stores questions, answers and token usage
+/// </summary>
+public class AIQuery
+{
+    /// <summary>
+    /// Unique identifier
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Device ID associated with the query (optional)
+    /// </summary>
+    public int? DeviceId { get; set; }
+
+    /// <summary>
+    /// Navigation property to Device
+    /// </summary>
+    public Device? Device { get; set; }
+
+    /// <summary>
+    /// User's question
+    /// </summary>
+    public required string Question { get; set; }
+
+    /// <summary>
+    /// AI's answer
+    /// </summary>
+    public required string Answer { get; set; }
+
+    /// <summary>
+    /// Number of prompt tokens used
+    /// </summary>
+    public int PromptTokens { get; set; }
+
+    /// <summary>
+    /// Number of completion tokens used
+    /// </summary>
+    public int CompletionTokens { get; set; }
+
+    /// <summary>
+    /// Total tokens used (prompt + completion)
+    /// </summary>
+    public int TotalTokens { get; set; }
+
+    /// <summary>
+    /// Model used for the query
+    /// </summary>
+    public string? Model { get; set; }
+
+    /// <summary>
+    /// Temperature parameter used
+    /// </summary>
+    public double? Temperature { get; set; }
+
+    /// <summary>
+    /// When the query was created
+    /// </summary>
+    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+
+    /// <summary>
+    /// Response time in milliseconds
+    /// </summary>
+    public long? ResponseTimeMs { get; set; }
+
+    /// <summary>
+    /// User ID (if authenticated)
+    /// </summary>
+    public int? UserId { get; set; }
+
+    /// <summary>
+    /// Navigation property to User
+    /// </summary>
+    public User? User { get; set; }
+}
+