feat: Add Ai Profiles

src/GreenHome.Application/Dtos/AI/AIProfileDtos.cs

@@ -0,0 +1,100 @@
+using GreenHome.Domain;
+
+namespace GreenHome.Application;
+
+// ==================== AI Profile ====================
+
+/// <summary>
+/// An AI profile as shown in the admin list, with aggregated usage.
+/// </summary>
+public sealed class AIProfileDto
+{
+    public int Id { get; set; }
+    public string Name { get; set; } = string.Empty;
+    public AIProvider Provider { get; set; }
+    public string BaseUrl { get; set; } = string.Empty;
+    public string Model { get; set; } = string.Empty;
+    public bool IsActive { get; set; }
+    public double? Temperature { get; set; }
+    public decimal? PromptPricePer1M { get; set; }
+    public decimal? CompletionPricePer1M { get; set; }
+
+    // Last known balance (may be null if the provider has no balance endpoint)
+    public decimal? BalanceUsd { get; set; }
+    public string? BalanceCurrency { get; set; }
+    public DateTime? BalanceUpdatedAt { get; set; }
+
+    // Aggregated usage for this profile (from the AIQueries log)
+    public int QueryCount { get; set; }
+    public int TotalPromptTokens { get; set; }
+    public int TotalCompletionTokens { get; set; }
+    public int TotalTokens { get; set; }
+    public decimal TotalCostUsd { get; set; }
+
+    public DateTime CreatedAt { get; set; }
+    public DateTime UpdatedAt { get; set; }
+}
+
+public sealed class AIProfileCreateRequest
+{
+    public required string Name { get; set; }
+    public AIProvider Provider { get; set; }
+    public string? BaseUrl { get; set; }
+    public required string ApiKey { get; set; }
+    public required string Model { get; set; }
+    public double? Temperature { get; set; }
+    public int? MaxTokens { get; set; }
+    public decimal? PromptPricePer1M { get; set; }
+    public decimal? CompletionPricePer1M { get; set; }
+}
+
+public sealed class AIProfileUpdateRequest
+{
+    public required string Name { get; set; }
+    public AIProvider Provider { get; set; }
+    public string? BaseUrl { get; set; }
+    public required string ApiKey { get; set; }
+    public required string Model { get; set; }
+    public double? Temperature { get; set; }
+    public int? MaxTokens { get; set; }
+    public decimal? PromptPricePer1M { get; set; }
+    public decimal? CompletionPricePer1M { get; set; }
+}
+
+/// <summary>
+/// Best-effort account balance for a provider (null = unavailable).
+/// </summary>
+public sealed class AIBalance
+{
+    public decimal Amount { get; set; }
+    public string? Currency { get; set; }
+}
+
+// ==================== AI Profile Usage ====================
+
+/// <summary>
+/// Aggregated usage for a single profile.
+/// </summary>
+public sealed class AIProfileUsageDto
+{
+    public int QueryCount { get; set; }
+    public int TotalPromptTokens { get; set; }
+    public int TotalCompletionTokens { get; set; }
+    public int TotalTokens { get; set; }
+    public decimal TotalCostUsd { get; set; }
+    public decimal? BalanceUsd { get; set; }
+    public string? BalanceCurrency { get; set; }
+}
+
+/// <summary>
+/// One day of AI usage for a profile (for charting).
+/// </summary>
+public sealed class AIProfileUsageDayDto
+{
+    public DateOnly Date { get; set; }
+    public int QueryCount { get; set; }
+    public int PromptTokens { get; set; }
+    public int CompletionTokens { get; set; }
+    public int TotalTokens { get; set; }
+    public decimal CostUsd { get; set; }
+}