feat: Add Ai Profiles

src/GreenHome.Api/Controllers/AIController.cs

@@ -1,25 +1,32 @@
 using GreenHome.AI.DeepSeek;
 using GreenHome.Application;
 using GreenHome.Domain;
+using GreenHome.Infrastructure.Services.AI;
 using Microsoft.AspNetCore.Mvc;
 using System.Diagnostics;
 
 namespace GreenHome.Api.Controllers;
 
+/// <summary>
+/// AI endpoints. Every request is routed through the active AI profile
+/// (see admin → AI Profiles); when no profile is active it falls back to the
+/// configured legacy DeepSeek service. Each query is logged with its tokens
+/// and estimated cost (CostUsd) for per-profile usage reporting.
+/// </summary>
 [ApiController]
 [Route("api/[controller]")]
 public class AIController : ControllerBase
 {
-    private readonly IDeepSeekService deepSeekService;
+    private readonly IAIProfileService aiProfileService;
     private readonly IAIQueryService aiQueryService;
     private readonly ILogger<AIController> logger;
 
     public AIController(
-        IDeepSeekService deepSeekService,
+        IAIProfileService aiProfileService,
         IAIQueryService aiQueryService,
         ILogger<AIController> logger)
     {
-        this.deepSeekService = deepSeekService;
+        this.aiProfileService = aiProfileService;
         this.aiQueryService = aiQueryService;
         this.logger = logger;
     }
@@ -27,10 +34,8 @@ public class AIController : ControllerBase
     /// <summary>
     /// Send a simple question to the AI and get a response
     /// </summary>
-    /// <param name="request">Question request</param>
-    /// <returns>AI response</returns>
     [HttpPost("ask")]
-    public async Task<IActionResult> AskQuestion([FromBody] SimpleQuestionRequest request)
+    public async Task<IActionResult> AskQuestion([FromBody] SimpleQuestionRequest request, CancellationToken cancellationToken)
     {
         var stopwatch = Stopwatch.StartNew();
 
@@ -43,7 +48,6 @@ public class AIController : ControllerBase
 
             logger.LogInformation("Processing AI question: {Question}", request.Question);
 
-            // Build chat request to get token information
             var messages = new List<ChatMessage>();
             if (!string.IsNullOrWhiteSpace(request.SystemPrompt))
             {
@@ -51,33 +55,19 @@ public class AIController : ControllerBase
             }
             messages.Add(new ChatMessage { Role = "user", Content = request.Question });
 
-            var chatRequest = new ChatRequest { Messages = messages };
+            var result = await aiProfileService.AskAsync(messages, cancellationToken: cancellationToken);
-            var chatResponse = await deepSeekService.AskAsync(chatRequest);
 
             stopwatch.Stop();
 
-            if (chatResponse == null || chatResponse.Choices == null || !chatResponse.Choices.Any())
+            if (result.Response == null || result.Response.Choices == null || !result.Response.Choices.Any())
             {
                 return StatusCode(500, new { error = "No response received from AI" });
             }
 
-            var answer = chatResponse.Choices.FirstOrDefault()?.Message?.Content ?? "";
+            var answer = result.Response.Choices.FirstOrDefault()?.Message?.Content ?? "";
 
-            // Save to database
+            var aiQuery = BuildQuery(result, request.Question, answer, request.DeviceId, request.UserId, null, stopwatch.ElapsedMilliseconds);
-            var aiQuery = new AIQuery
+            await aiQueryService.SaveQueryAsync(aiQuery, cancellationToken);
-            {
-                Question = request.Question,
-                Answer = answer,
-                DeviceId = request.DeviceId,
-                UserId = request.UserId,
-                Model = chatResponse.Model,
-                PromptTokens = chatResponse.Usage?.PromptTokens ?? 0,
-                CompletionTokens = chatResponse.Usage?.CompletionTokens ?? 0,
-                TotalTokens = chatResponse.Usage?.TotalTokens ?? 0,
-                ResponseTimeMs = stopwatch.ElapsedMilliseconds
-            };
-
-            await aiQueryService.SaveQueryAsync(aiQuery);
 
             return Ok(new
             {
@@ -90,6 +80,8 @@ public class AIController : ControllerBase
                     completion = aiQuery.CompletionTokens,
                     total = aiQuery.TotalTokens
                 },
+                costUsd = aiQuery.CostUsd,
+                profileId = aiQuery.ProfileId,
                 responseTimeMs = aiQuery.ResponseTimeMs,
                 timestamp = DateTime.UtcNow
             });
@@ -104,10 +96,8 @@ public class AIController : ControllerBase
     /// <summary>
     /// Send a complex chat request with multiple messages to the AI
     /// </summary>
-    /// <param name="request">Extended chat request with deviceId</param>
-    /// <returns>AI chat response</returns>
     [HttpPost("chat")]
-    public async Task<IActionResult> Chat([FromBody] ExtendedChatRequest request)
+    public async Task<IActionResult> Chat([FromBody] ExtendedChatRequest request, CancellationToken cancellationToken)
     {
         var stopwatch = Stopwatch.StartNew();
 
@@ -120,46 +110,41 @@ public class AIController : ControllerBase
 
             logger.LogInformation("Processing AI chat with {MessageCount} messages", request.Messages.Count);
 
-            var chatRequest = new ChatRequest
+            // ponytail: the active profile's model wins over request.Model — analysis is
-            {
+            // always supposed to run on the configured profile; temperature/maxTokens still apply.
-                Messages = request.Messages,
+            var result = await aiProfileService.AskAsync(
-                Model = request.Model,
+                request.Messages,
-                Temperature = request.Temperature,
+                temperature: request.Temperature,
-                MaxTokens = request.MaxTokens
+                maxTokens: request.MaxTokens,
-            };
+                cancellationToken: cancellationToken);
-
-            var response = await deepSeekService.AskAsync(chatRequest);
 
             stopwatch.Stop();
 
-            if (response == null || response.Choices == null || !response.Choices.Any())
+            if (result.Response == null || result.Response.Choices == null || !result.Response.Choices.Any())
             {
                 return StatusCode(500, new { error = "No response received from AI" });
             }
 
-            // Extract question and answer
             var userMessage = request.Messages.LastOrDefault(m => m.Role == "user");
             var question = userMessage?.Content ?? "Complex chat";
-            var answer = response.Choices.FirstOrDefault()?.Message?.Content ?? "";
+            var answer = result.Response.Choices.FirstOrDefault()?.Message?.Content ?? "";
 
-            // Save to database
+            var aiQuery = BuildQuery(result, question, answer, request.DeviceId, request.UserId, request.Temperature, stopwatch.ElapsedMilliseconds);
-            var aiQuery = new AIQuery
+            await aiQueryService.SaveQueryAsync(aiQuery, cancellationToken);
+
+            var response = result.Response;
+            return Ok(new
             {
-                Question = question,
+                response.Id,
-                Answer = answer,
+                response.Object,
-                DeviceId = request.DeviceId,
+                response.Created,
-                UserId = request.UserId,
+                response.Model,
-                Model = response.Model,
+                response.Choices,
-                Temperature = request.Temperature,
+                response.Usage,
-                PromptTokens = response.Usage?.PromptTokens ?? 0,
+                costUsd = aiQuery.CostUsd,
-                CompletionTokens = response.Usage?.CompletionTokens ?? 0,
+                profileId = aiQuery.ProfileId,
-                TotalTokens = response.Usage?.TotalTokens ?? 0,
+                responseTimeMs = aiQuery.ResponseTimeMs
-                ResponseTimeMs = stopwatch.ElapsedMilliseconds
+            });
-            };
-
-            await aiQueryService.SaveQueryAsync(aiQuery);
-
-            return Ok(response);
         }
         catch (Exception ex)
         {
@@ -171,10 +156,8 @@ public class AIController : ControllerBase
     /// <summary>
     /// Get suggestions for smart home automation based on device data
     /// </summary>
-    /// <param name="request">Device context request</param>
-    /// <returns>AI suggestions</returns>
     [HttpPost("suggest")]
-    public async Task<IActionResult> GetSuggestions([FromBody] SuggestionRequest request)
+    public async Task<IActionResult> GetSuggestions([FromBody] SuggestionRequest request, CancellationToken cancellationToken)
     {
         var stopwatch = Stopwatch.StartNew();
 
@@ -193,33 +176,19 @@ public class AIController : ControllerBase
                 new ChatMessage { Role = "user", Content = question }
             };
 
-            var chatRequest = new ChatRequest { Messages = messages };
+            var result = await aiProfileService.AskAsync(messages, cancellationToken: cancellationToken);
-            var chatResponse = await deepSeekService.AskAsync(chatRequest);
 
             stopwatch.Stop();
 
-            if (chatResponse == null || chatResponse.Choices == null || !chatResponse.Choices.Any())
+            if (result.Response == null || result.Response.Choices == null || !result.Response.Choices.Any())
             {
                 return StatusCode(500, new { error = "No suggestions received from AI" });
             }
 
-            var answer = chatResponse.Choices.FirstOrDefault()?.Message?.Content ?? "";
+            var answer = result.Response.Choices.FirstOrDefault()?.Message?.Content ?? "";
 
-            // Save to database
+            var aiQuery = BuildQuery(result, question, answer, request.DeviceId, request.UserId, null, stopwatch.ElapsedMilliseconds);
-            var aiQuery = new AIQuery
+            await aiQueryService.SaveQueryAsync(aiQuery, cancellationToken);
-            {
-                Question = question,
-                Answer = answer,
-                DeviceId = request.DeviceId,
-                UserId = request.UserId,
-                Model = chatResponse.Model,
-                PromptTokens = chatResponse.Usage?.PromptTokens ?? 0,
-                CompletionTokens = chatResponse.Usage?.CompletionTokens ?? 0,
-                TotalTokens = chatResponse.Usage?.TotalTokens ?? 0,
-                ResponseTimeMs = stopwatch.ElapsedMilliseconds
-            };
-
-            await aiQueryService.SaveQueryAsync(aiQuery);
 
             return Ok(new
             {
@@ -231,6 +200,8 @@ public class AIController : ControllerBase
                     completion = aiQuery.CompletionTokens,
                     total = aiQuery.TotalTokens
                 },
+                costUsd = aiQuery.CostUsd,
+                profileId = aiQuery.ProfileId,
                 responseTimeMs = aiQuery.ResponseTimeMs,
                 timestamp = DateTime.UtcNow
             });
@@ -246,12 +217,12 @@ public class AIController : ControllerBase
     /// Get AI query history for a device
     /// </summary>
     [HttpGet("history/device/{deviceId}")]
-    public async Task<IActionResult> GetDeviceHistory(int deviceId, [FromQuery] int take = 50)
+    public async Task<IActionResult> GetDeviceHistory(int deviceId, [FromQuery] int take = 50, CancellationToken cancellationToken = default)
     {
         try
         {
-            var queries = await aiQueryService.GetDeviceQueriesAsync(deviceId, take);
+            var queries = await aiQueryService.GetDeviceQueriesAsync(deviceId, take, cancellationToken);
-            var totalTokens = await aiQueryService.GetDeviceTotalTokensAsync(deviceId);
+            var totalTokens = await aiQueryService.GetDeviceTotalTokensAsync(deviceId, cancellationToken);
 
             return Ok(new
             {
@@ -263,7 +234,9 @@ public class AIController : ControllerBase
                     q.TotalTokens,
                     q.PromptTokens,
                     q.CompletionTokens,
+                    q.CostUsd,
                     q.Model,
+                    q.ProfileId,
                     q.ResponseTimeMs,
                     q.CreatedAt
                 }),
@@ -281,11 +254,11 @@ public class AIController : ControllerBase
     /// Get AI query statistics
     /// </summary>
     [HttpGet("stats")]
-    public async Task<IActionResult> GetStats()
+    public async Task<IActionResult> GetStats(CancellationToken cancellationToken)
     {
         try
         {
-            var stats = await aiQueryService.GetStatsAsync();
+            var stats = await aiQueryService.GetStatsAsync(cancellationToken);
             return Ok(stats);
         }
         catch (Exception ex)
@@ -294,6 +267,42 @@ public class AIController : ControllerBase
             return StatusCode(500, new { error = "An error occurred" });
         }
     }
+
+    /// <summary>
+    /// Builds an AIQuery row from a profile ask result, attaching profile,
+    /// tokens and the estimated cost.
+    /// </summary>
+    private static AIQuery BuildQuery(
+        AIAskResult result,
+        string question,
+        string answer,
+        int? deviceId,
+        int? userId,
+        double? temperature,
+        long responseTimeMs)
+    {
+        var profile = result.Profile;
+        var usage = result.Response!.Usage;
+
+        var query = new AIQuery
+        {
+            Question = question,
+            Answer = answer,
+            DeviceId = deviceId,
+            UserId = userId,
+            Model = result.Response.Model,
+            ProfileId = profile?.Id,
+            CostUsd = profile != null
+                ? IAIProfileService.EstimateCost(profile.PromptPricePer1M, profile.CompletionPricePer1M, usage?.PromptTokens ?? 0, usage?.CompletionTokens ?? 0)
+                : 0m,
+            Temperature = temperature,
+            PromptTokens = usage?.PromptTokens ?? 0,
+            CompletionTokens = usage?.CompletionTokens ?? 0,
+            TotalTokens = usage?.TotalTokens ?? 0,
+            ResponseTimeMs = responseTimeMs
+        };
+        return query;
+    }
 }
 
 /// <summary>
@@ -301,24 +310,9 @@ public class AIController : ControllerBase
 /// </summary>
 public class SimpleQuestionRequest
 {
-    /// <summary>
-    /// The question to ask the AI
-    /// </summary>
     public required string Question { get; set; }
-
-    /// <summary>
-    /// Optional system prompt to set context for the AI
-    /// </summary>
     public string? SystemPrompt { get; set; }
-
-    /// <summary>
-    /// Optional device ID to associate with this query
-    /// </summary>
     public int? DeviceId { get; set; }
-
-    /// <summary>
-    /// Optional user ID to associate with this query
-    /// </summary>
     public int? UserId { get; set; }
 }
 
@@ -328,7 +322,7 @@ public class SimpleQuestionRequest
 public class ExtendedChatRequest
 {
     public required List<ChatMessage> Messages { get; set; }
-    public string Model { get; set; } = "deepseek-chat";
+    public string? Model { get; set; }
     public double? Temperature { get; set; }
     public int? MaxTokens { get; set; }
     public int? DeviceId { get; set; }
@@ -340,19 +334,7 @@ public class ExtendedChatRequest
 /// </summary>
 public class SuggestionRequest
 {
-    /// <summary>
-    /// Context about devices and their current state
-    /// </summary>
     public required string DeviceContext { get; set; }
-
-    /// <summary>
-    /// Device ID for this suggestion request
-    /// </summary>
     public int? DeviceId { get; set; }
-
-    /// <summary>
-    /// User ID for this suggestion request
-    /// </summary>
     public int? UserId { get; set; }
 }
-

src/GreenHome.Api/Controllers/AdminController.cs

@@ -4,6 +4,7 @@ using GreenHome.Api.Filters;
 using GreenHome.Application;
 using GreenHome.Application.Dtos.Admin;
 using GreenHome.Domain;
+using GreenHome.Infrastructure.Services.AI;
 using Microsoft.AspNetCore.Mvc;
 
 namespace GreenHome.Api.Controllers;
@@ -14,10 +15,12 @@ namespace GreenHome.Api.Controllers;
 public sealed class AdminController : ControllerBase
 {
     private readonly IAdminService _adminService;
+    private readonly IAIProfileService _aiProfileService;
 
-    public AdminController(IAdminService adminService)
+    public AdminController(IAdminService adminService, IAIProfileService aiProfileService)
     {
         _adminService = adminService;
+        _aiProfileService = aiProfileService;
     }
 
     // ==================== Dashboard ====================
@@ -338,4 +341,116 @@ public sealed class AdminController : ControllerBase
         var result = await _adminService.GetAuditLogsAsync(filter, cancellationToken);
         return Ok(result);
     }
+
+    // ==================== AI Profiles ====================
+
+    [HttpGet("ai-profiles")]
+    public async Task<ActionResult<List<AIProfileDto>>> AiProfiles(CancellationToken cancellationToken)
+    {
+        var result = await _aiProfileService.GetProfilesAsync(cancellationToken);
+        return Ok(result);
+    }
+
+    [HttpPost("ai-profiles")]
+    public async Task<IActionResult> CreateAiProfile([FromBody] AIProfileCreateRequest request, CancellationToken cancellationToken)
+    {
+        var currentAdminId = ((UserDto)HttpContext.Items["AdminUser"]!).Id;
+        try
+        {
+            var result = await _aiProfileService.CreateProfileAsync(request, currentAdminId, cancellationToken);
+            return Ok(result);
+        }
+        catch (ArgumentException ex)
+        {
+            return BadRequest(new { message = ex.Message });
+        }
+    }
+
+    [HttpPut("ai-profiles/{id:int}")]
+    public async Task<IActionResult> UpdateAiProfile(int id, [FromBody] AIProfileUpdateRequest request, CancellationToken cancellationToken)
+    {
+        var currentAdminId = ((UserDto)HttpContext.Items["AdminUser"]!).Id;
+        try
+        {
+            var result = await _aiProfileService.UpdateProfileAsync(id, request, currentAdminId, cancellationToken);
+            return result is null ? NotFound() : Ok(result);
+        }
+        catch (ArgumentException ex)
+        {
+            return BadRequest(new { message = ex.Message });
+        }
+    }
+
+    [HttpDelete("ai-profiles/{id:int}")]
+    public async Task<IActionResult> DeleteAiProfile(int id, CancellationToken cancellationToken)
+    {
+        var currentAdminId = ((UserDto)HttpContext.Items["AdminUser"]!).Id;
+        var success = await _aiProfileService.DeleteProfileAsync(id, currentAdminId, cancellationToken);
+        return success ? Ok(new { success = true }) : NotFound();
+    }
+
+    [HttpPost("ai-profiles/{id:int}/activate")]
+    public async Task<IActionResult> ActivateAiProfile(int id, CancellationToken cancellationToken)
+    {
+        var currentAdminId = ((UserDto)HttpContext.Items["AdminUser"]!).Id;
+        try
+        {
+            var result = await _aiProfileService.ActivateProfileAsync(id, currentAdminId, cancellationToken);
+            return Ok(result);
+        }
+        catch (KeyNotFoundException)
+        {
+            return NotFound();
+        }
+    }
+
+    [HttpGet("ai-profiles/{id:int}/models")]
+    public async Task<IActionResult> GetAiProfileModels(int id, CancellationToken cancellationToken)
+    {
+        try
+        {
+            var models = await _aiProfileService.GetModelsAsync(id, cancellationToken);
+            return Ok(models);
+        }
+        catch (KeyNotFoundException)
+        {
+            return NotFound();
+        }
+        catch (Exception)
+        {
+            return StatusCode(502, new { message = "خطا در دریافت لیست مدل‌ها از سرویس" });
+        }
+    }
+
+    [HttpPost("ai-profiles/{id:int}/refresh-balance")]
+    public async Task<IActionResult> RefreshAiProfileBalance(int id, CancellationToken cancellationToken)
+    {
+        try
+        {
+            var balance = await _aiProfileService.RefreshBalanceAsync(id, cancellationToken);
+            return Ok(balance is null
+                ? new { success = false, message = "دریافت موجودی برای این سرویس در دسترس نیست" }
+                : new { success = true, balance });
+        }
+        catch (KeyNotFoundException)
+        {
+            return NotFound();
+        }
+        catch (Exception)
+        {
+            return StatusCode(502, new { message = "خطا در دریافت موجودی از سرویس" });
+        }
+    }
+
+    [HttpGet("ai-profiles/{id:int}/usage/daily")]
+    public async Task<ActionResult<List<AIProfileUsageDayDto>>> GetAiProfileUsage(
+        int id,
+        [FromQuery] DateTime? from,
+        [FromQuery] DateTime? to,
+        CancellationToken cancellationToken)
+    {
+        var (f, t) = ResolveReportRange(from, to);
+        var result = await _aiProfileService.GetUsageByDayAsync(id, f, t.AddDays(1), cancellationToken);
+        return Ok(result);
+    }
 }

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; }
+}

src/GreenHome.Domain/AIProfile.cs

@@ -0,0 +1,60 @@
+namespace GreenHome.Domain;
+
+/// <summary>
+/// Supported AI providers.
+/// DeepSeek and OpenAI are first-party; OpenAICompatible covers any OpenAI-compatible endpoint.
+/// </summary>
+public enum AIProvider
+{
+    DeepSeek = 0,
+    OpenAI = 1,
+    OpenAICompatible = 2
+}
+
+/// <summary>
+/// A configured AI account used for analysis.
+/// Only one profile can be active at a time; analysis always runs against the active profile.
+/// </summary>
+public class AIProfile
+{
+    public int Id { get; set; }
+
+    /// <summary>Human-friendly name chosen by the admin.</summary>
+    public required string Name { get; set; }
+
+    public AIProvider Provider { get; set; }
+
+    /// <summary>
+    /// API root. DeepSeek: https://api.deepseek.com  |  OpenAI: https://api.openai.com/v1  |  Compatible: user-provided.
+    /// </summary>
+    public string BaseUrl { get; set; } = string.Empty;
+
+    public required string ApiKey { get; set; }
+
+    public required string Model { get; set; }
+
+    public double? Temperature { get; set; }
+
+    public int? MaxTokens { get; set; }
+
+    /// <summary>True for the single profile used for all analysis.</summary>
+    public bool IsActive { get; set; }
+
+    /// <summary>Input (prompt) price per 1M tokens, in USD. Null = unknown.</summary>
+    public decimal? PromptPricePer1M { get; set; }
+
+    /// <summary>Output (completion) price per 1M tokens, in USD. Null = unknown.</summary>
+    public decimal? CompletionPricePer1M { get; set; }
+
+    /// <summary>Last known account balance (best-effort, provider dependent).</summary>
+    public decimal? BalanceUsd { get; set; }
+
+    /// <summary>Currency code of BalanceUsd (e.g. USD, CNY). Null = unknown / unavailable.</summary>
+    public string? BalanceCurrency { get; set; }
+
+    public DateTime? BalanceUpdatedAt { get; set; }
+
+    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+
+    public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
+}

src/GreenHome.Domain/AIQuery.cs

@@ -50,6 +50,21 @@ public class AIQuery
     /// </summary>
     public string? Model { get; set; }
 
+    /// <summary>
+    /// AI profile used for this query
+    /// </summary>
+    public int? ProfileId { get; set; }
+
+    /// <summary>
+    /// Navigation property to AIProfile
+    /// </summary>
+    public AIProfile? Profile { get; set; }
+
+    /// <summary>
+    /// Estimated cost of the query in USD (0 = not calculable)
+    /// </summary>
+    public decimal CostUsd { get; set; }
+
     /// <summary>
     /// Temperature parameter used
     /// </summary>

src/GreenHome.Infrastructure/Data/GreenHomeDbContext.cs

@@ -20,6 +20,7 @@ public sealed class GreenHomeDbContext : DbContext
     public DbSet<Domain.AlertNotification> AlertNotifications => Set<Domain.AlertNotification>();
     public DbSet<Domain.AlertLog> AlertLogs => Set<Domain.AlertLog>();
     public DbSet<Domain.AIQuery> AIQueries => Set<Domain.AIQuery>();
+    public DbSet<Domain.AIProfile> AIProfiles => Set<Domain.AIProfile>();
     public DbSet<Domain.DailyReport> DailyReports => Set<Domain.DailyReport>();
     public DbSet<Domain.UserDailyReport> UserDailyReports => Set<Domain.UserDailyReport>();
     public DbSet<Domain.ReportImage> ReportImages => Set<Domain.ReportImage>();
@@ -236,6 +237,7 @@ public sealed class GreenHomeDbContext : DbContext
             b.Property(x => x.Question).IsRequired();
             b.Property(x => x.Answer).IsRequired();
             b.Property(x => x.Model).HasMaxLength(100);
+            b.Property(x => x.CostUsd).HasColumnType("decimal(18,8)");
             b.HasOne(x => x.Device)
                 .WithMany()
                 .HasForeignKey(x => x.DeviceId)
@@ -244,11 +246,32 @@ public sealed class GreenHomeDbContext : DbContext
                 .WithMany()
                 .HasForeignKey(x => x.UserId)
                 .OnDelete(DeleteBehavior.SetNull);
+            b.HasOne(x => x.Profile)
+                .WithMany()
+                .HasForeignKey(x => x.ProfileId)
+                .OnDelete(DeleteBehavior.SetNull);
             b.HasIndex(x => x.DeviceId);
             b.HasIndex(x => x.UserId);
+            b.HasIndex(x => x.ProfileId);
             b.HasIndex(x => x.CreatedAt);
         });
 
+        modelBuilder.Entity<Domain.AIProfile>(b =>
+        {
+            b.ToTable("AIProfiles");
+            b.HasKey(x => x.Id);
+            b.Property(x => x.Name).IsRequired().HasMaxLength(100);
+            b.Property(x => x.Provider).IsRequired().HasConversion<int>();
+            b.Property(x => x.BaseUrl).IsRequired().HasMaxLength(300);
+            b.Property(x => x.ApiKey).IsRequired().HasMaxLength(500);
+            b.Property(x => x.Model).IsRequired().HasMaxLength(100);
+            b.Property(x => x.PromptPricePer1M).HasColumnType("decimal(18,6)");
+            b.Property(x => x.CompletionPricePer1M).HasColumnType("decimal(18,6)");
+            b.Property(x => x.BalanceUsd).HasColumnType("decimal(18,6)");
+            b.Property(x => x.BalanceCurrency).HasMaxLength(10);
+            b.HasIndex(x => x.IsActive);
+        });
+
         modelBuilder.Entity<Domain.DailyReport>(b =>
         {
             b.ToTable("DailyReports");

src/GreenHome.Infrastructure/Data/Migrations/Migrations/20260926160156_AddAIProfiles.cs

@@ -0,0 +1,96 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace GreenHome.Infrastructure.Data.Migrations.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddAIProfiles : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<decimal>(
+                name: "CostUsd",
+                table: "AIQueries",
+                type: "decimal(18,8)",
+                nullable: false,
+                defaultValue: 0m);
+
+            migrationBuilder.AddColumn<int>(
+                name: "ProfileId",
+                table: "AIQueries",
+                type: "int",
+                nullable: true);
+
+            migrationBuilder.CreateTable(
+                name: "AIProfiles",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    Name = table.Column<string>(type: "nvarchar(100)", maxLength: 100, nullable: false),
+                    Provider = table.Column<int>(type: "int", nullable: false),
+                    BaseUrl = table.Column<string>(type: "nvarchar(300)", maxLength: 300, nullable: false),
+                    ApiKey = table.Column<string>(type: "nvarchar(500)", maxLength: 500, nullable: false),
+                    Model = table.Column<string>(type: "nvarchar(100)", maxLength: 100, nullable: false),
+                    Temperature = table.Column<double>(type: "float", nullable: true),
+                    MaxTokens = table.Column<int>(type: "int", nullable: true),
+                    IsActive = table.Column<bool>(type: "bit", nullable: false),
+                    PromptPricePer1M = table.Column<decimal>(type: "decimal(18,6)", nullable: true),
+                    CompletionPricePer1M = table.Column<decimal>(type: "decimal(18,6)", nullable: true),
+                    BalanceUsd = table.Column<decimal>(type: "decimal(18,6)", nullable: true),
+                    BalanceCurrency = table.Column<string>(type: "nvarchar(10)", maxLength: 10, nullable: true),
+                    BalanceUpdatedAt = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    CreatedAt = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "datetime2", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AIProfiles", x => x.Id);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AIQueries_ProfileId",
+                table: "AIQueries",
+                column: "ProfileId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AIProfiles_IsActive",
+                table: "AIProfiles",
+                column: "IsActive");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_AIQueries_AIProfiles_ProfileId",
+                table: "AIQueries",
+                column: "ProfileId",
+                principalTable: "AIProfiles",
+                principalColumn: "Id",
+                onDelete: ReferentialAction.SetNull);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_AIQueries_AIProfiles_ProfileId",
+                table: "AIQueries");
+
+            migrationBuilder.DropTable(
+                name: "AIProfiles");
+
+            migrationBuilder.DropIndex(
+                name: "IX_AIQueries_ProfileId",
+                table: "AIQueries");
+
+            migrationBuilder.DropColumn(
+                name: "CostUsd",
+                table: "AIQueries");
+
+            migrationBuilder.DropColumn(
+                name: "ProfileId",
+                table: "AIQueries");
+        }
+    }
+}

src/GreenHome.Infrastructure/Data/Migrations/Migrations/GreenHomeDbContextModelSnapshot.cs

@@ -22,6 +22,75 @@ namespace GreenHome.Infrastructure.Data.Migrations
 
             SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
 
+            modelBuilder.Entity("GreenHome.Domain.AIProfile", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ApiKey")
+                        .IsRequired()
+                        .HasMaxLength(500)
+                        .HasColumnType("nvarchar(500)");
+
+                    b.Property<string>("BalanceCurrency")
+                        .HasMaxLength(10)
+                        .HasColumnType("nvarchar(10)");
+
+                    b.Property<DateTime?>("BalanceUpdatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<decimal?>("BalanceUsd")
+                        .HasColumnType("decimal(18,6)");
+
+                    b.Property<string>("BaseUrl")
+                        .IsRequired()
+                        .HasMaxLength(300)
+                        .HasColumnType("nvarchar(300)");
+
+                    b.Property<decimal?>("CompletionPricePer1M")
+                        .HasColumnType("decimal(18,6)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<bool>("IsActive")
+                        .HasColumnType("bit");
+
+                    b.Property<int?>("MaxTokens")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Model")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("nvarchar(100)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("nvarchar(100)");
+
+                    b.Property<decimal?>("PromptPricePer1M")
+                        .HasColumnType("decimal(18,6)");
+
+                    b.Property<int>("Provider")
+                        .HasColumnType("int");
+
+                    b.Property<double?>("Temperature")
+                        .HasColumnType("float");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("IsActive");
+
+                    b.ToTable("AIProfiles", (string)null);
+                });
+
             modelBuilder.Entity("GreenHome.Domain.AIQuery", b =>
                 {
                     b.Property<int>("Id")
@@ -37,6 +106,9 @@ namespace GreenHome.Infrastructure.Data.Migrations
                     b.Property<int>("CompletionTokens")
                         .HasColumnType("int");
 
+                    b.Property<decimal>("CostUsd")
+                        .HasColumnType("decimal(18,8)");
+
                     b.Property<DateTime>("CreatedAt")
                         .HasColumnType("datetime2");
 
@@ -47,6 +119,9 @@ namespace GreenHome.Infrastructure.Data.Migrations
                         .HasMaxLength(100)
                         .HasColumnType("nvarchar(100)");
 
+                    b.Property<int?>("ProfileId")
+                        .HasColumnType("int");
+
                     b.Property<int>("PromptTokens")
                         .HasColumnType("int");
 
@@ -72,6 +147,8 @@ namespace GreenHome.Infrastructure.Data.Migrations
 
                     b.HasIndex("DeviceId");
 
+                    b.HasIndex("ProfileId");
+
                     b.HasIndex("UserId");
 
                     b.ToTable("AIQueries", (string)null);
@@ -1201,6 +1278,11 @@ namespace GreenHome.Infrastructure.Data.Migrations
                         .HasForeignKey("DeviceId")
                         .OnDelete(DeleteBehavior.SetNull);
 
+                    b.HasOne("GreenHome.Domain.AIProfile", "Profile")
+                        .WithMany()
+                        .HasForeignKey("ProfileId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
                     b.HasOne("GreenHome.Domain.User", "User")
                         .WithMany()
                         .HasForeignKey("UserId")
@@ -1208,6 +1290,8 @@ namespace GreenHome.Infrastructure.Data.Migrations
 
                     b.Navigation("Device");
 
+                    b.Navigation("Profile");
+
                     b.Navigation("User");
                 });
 

src/GreenHome.Infrastructure/DependencyInjection.cs

@@ -74,6 +74,8 @@ public static class DependencyInjection
 
         // AI
         services.AddScoped<IAIQueryService, AIQueryService>();
+        services.AddSingleton<AIChatClient>();
+        services.AddScoped<IAIProfileService, AIProfileService>();
 
         // Sun Calculator
         services.AddScoped<ISunCalculatorService, SunCalculatorService>();

src/GreenHome.Infrastructure/Services/AI/AIChatClient.cs

@@ -0,0 +1,141 @@
+using System.Net.Http.Json;
+using System.Text.Json;
+using GreenHome.AI.DeepSeek;
+using GreenHome.Application;
+using GreenHome.Domain;
+using Microsoft.Extensions.Logging;
+
+namespace GreenHome.Infrastructure.Services.AI;
+
+/// <summary>
+/// Generic OpenAI-compatible chat client. All three supported providers (DeepSeek, OpenAI,
+/// any OpenAI-compatible endpoint) speak the same protocol, so one client covers them all.
+/// The profile's BaseUrl is the API root including /v1 (e.g. https://api.deepseek.com/v1).
+/// </summary>
+public sealed class AIChatClient
+{
+    private readonly IHttpClientFactory _httpClientFactory;
+    private readonly ILogger<AIChatClient> _logger;
+
+    public AIChatClient(IHttpClientFactory httpClientFactory, ILogger<AIChatClient> logger)
+    {
+        _httpClientFactory = httpClientFactory;
+        _logger = logger;
+    }
+
+    public async Task<ChatResponse?> AskAsync(
+        AIProfile profile,
+        List<ChatMessage> messages,
+        double? temperature,
+        int? maxTokens,
+        CancellationToken cancellationToken = default)
+    {
+        var client = CreateClient(profile);
+        var request = new ChatRequest
+        {
+            Model = profile.Model,
+            Messages = messages,
+            Temperature = temperature ?? profile.Temperature,
+            MaxTokens = maxTokens ?? profile.MaxTokens
+        };
+
+        var response = await client.PostAsJsonAsync("chat/completions", request, cancellationToken);
+        response.EnsureSuccessStatusCode();
+        return await response.Content.ReadFromJsonAsync<ChatResponse>(cancellationToken: cancellationToken);
+    }
+
+    /// <summary>
+    /// Lists model ids available on the provider's /models endpoint.
+    /// </summary>
+    public async Task<List<string>> GetModelsAsync(AIProfile profile, CancellationToken cancellationToken = default)
+    {
+        var client = CreateClient(profile);
+        var response = await client.GetAsync("models", cancellationToken);
+        response.EnsureSuccessStatusCode();
+
+        using var doc = await JsonDocument.ParseAsync(await response.Content.ReadAsStreamAsync(cancellationToken), cancellationToken: cancellationToken);
+        var ids = new List<string>();
+        if (doc.RootElement.TryGetProperty("data", out var data) && data.ValueKind == JsonValueKind.Array)
+        {
+            foreach (var item in data.EnumerateArray())
+            {
+                if (item.TryGetProperty("id", out var id) && id.ValueKind == JsonValueKind.String)
+                    ids.Add(id.GetString()!);
+            }
+        }
+        return ids;
+    }
+
+    /// <summary>
+    /// Best-effort account balance. DeepSeek: GET balance (data.total_balance, CNY).
+    /// OpenAI: GET balance (sum of data[].amount, USD). Compatible: unavailable (null).
+    /// Any failure returns null — balance is informational only.
+    /// </summary>
+    public async Task<AIBalance?> GetBalanceAsync(AIProfile profile, CancellationToken cancellationToken = default)
+    {
+        if (profile.Provider == AIProvider.OpenAICompatible)
+            return null;
+
+        try
+        {
+            var client = CreateClient(profile);
+            var response = await client.GetAsync("balance", cancellationToken);
+            if (!response.IsSuccessStatusCode)
+            {
+                _logger.LogWarning("Balance endpoint for profile {ProfileId} returned {Status}", profile.Id, (int)response.StatusCode);
+                return null;
+            }
+
+            using var doc = await JsonDocument.ParseAsync(await response.Content.ReadAsStreamAsync(cancellationToken), cancellationToken: cancellationToken);
+            var root = doc.RootElement;
+
+            if (profile.Provider == AIProvider.DeepSeek)
+            {
+                // { "object": "credit_list", "data": { "total_balance": 12.5, "balance": 12.5 } }
+                if (root.TryGetProperty("data", out var data) &&
+                    data.TryGetProperty("total_balance", out var total) &&
+                    total.TryGetDecimal(out var amount))
+                    return new AIBalance { Amount = amount, Currency = "CNY" };
+            }
+            else if (profile.Provider == AIProvider.OpenAI)
+            {
+                // { "object": "list", "data": [ { "object": "balance", "amount": 100, "currency": "usd" } ] }
+                if (root.TryGetProperty("data", out var data) && data.ValueKind == JsonValueKind.Array)
+                {
+                    decimal sum = 0;
+                    string? currency = null;
+                    foreach (var item in data.EnumerateArray())
+                    {
+                        if (item.TryGetProperty("amount", out var amount) && amount.TryGetDecimal(out var a))
+                        {
+                            sum += a;
+                            if (item.TryGetProperty("currency", out var cur) && cur.ValueKind == JsonValueKind.String)
+                                currency = cur.GetString()?.ToUpperInvariant();
+                        }
+                    }
+                    if (currency != null)
+                        return new AIBalance { Amount = sum, Currency = currency };
+                }
+            }
+
+            return null;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(ex, "Failed to fetch balance for profile {ProfileId}", profile.Id);
+            return null;
+        }
+    }
+
+    private HttpClient CreateClient(AIProfile profile)
+    {
+        var client = _httpClientFactory.CreateClient();
+        var baseAddress = profile.BaseUrl.TrimEnd('/');
+        if (!baseAddress.EndsWith("/"))
+            baseAddress += "/";
+        client.BaseAddress = new Uri(baseAddress);
+        client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", profile.ApiKey);
+        client.Timeout = TimeSpan.FromSeconds(120);
+        return client;
+    }
+}

src/GreenHome.Infrastructure/Services/AI/AIProfileService.cs

@@ -0,0 +1,348 @@
+using GreenHome.AI.DeepSeek;
+using GreenHome.Application;
+using GreenHome.Domain;
+using GreenHome.Infrastructure.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+
+namespace GreenHome.Infrastructure.Services.AI;
+
+/// <summary>
+/// AI profile management + runtime routing. All analysis flows through the active
+/// profile; when none is active it falls back to the legacy DeepSeek config so
+/// the app keeps working out of the box.
+/// </summary>
+public sealed class AIProfileService : IAIProfileService
+{
+    // Default API roots (including /v1) per first-party provider
+    private const string DeepSeekDefaultBaseUrl = "https://api.deepseek.com/v1";
+    private const string OpenAIDefaultBaseUrl = "https://api.openai.com/v1";
+
+    private readonly GreenHomeDbContext _dbContext;
+    private readonly AIChatClient _chatClient;
+    private readonly IDeepSeekService _deepSeekService;
+    private readonly ILogger<AIProfileService> _logger;
+
+    public AIProfileService(
+        GreenHomeDbContext dbContext,
+        AIChatClient chatClient,
+        IDeepSeekService deepSeekService,
+        ILogger<AIProfileService> logger)
+    {
+        _dbContext = dbContext;
+        _chatClient = chatClient;
+        _deepSeekService = deepSeekService;
+        _logger = logger;
+    }
+
+    // ==================== CRUD ====================
+
+    public async Task<List<AIProfileDto>> GetProfilesAsync(CancellationToken cancellationToken = default)
+    {
+        var profiles = await _dbContext.AIProfiles
+            .OrderBy(p => p.Id)
+            .ToListAsync(cancellationToken);
+
+        var usageMap = await GetUsageMapAsync(cancellationToken);
+
+        return profiles.Select(p => ToDto(p, usageMap)).ToList();
+    }
+
+    public async Task<AIProfileDto?> GetProfileAsync(int id, CancellationToken cancellationToken = default)
+    {
+        var profile = await _dbContext.AIProfiles.FindAsync(new object[] { id }, cancellationToken);
+        if (profile == null) return null;
+
+        var usageMap = await GetUsageMapAsync(cancellationToken);
+        return ToDto(profile, usageMap);
+    }
+
+    public async Task<AIProfileDto> CreateProfileAsync(AIProfileCreateRequest request, int currentAdminId, CancellationToken cancellationToken = default)
+    {
+        var profile = new AIProfile
+        {
+            Name = request.Name.Trim(),
+            Provider = request.Provider,
+            BaseUrl = ResolveBaseUrl(request.Provider, request.BaseUrl),
+            ApiKey = request.ApiKey.Trim(),
+            Model = request.Model.Trim(),
+            Temperature = request.Temperature,
+            MaxTokens = request.MaxTokens,
+            PromptPricePer1M = request.PromptPricePer1M,
+            CompletionPricePer1M = request.CompletionPricePer1M,
+            // First profile becomes active so analysis works immediately
+            IsActive = !await _dbContext.AIProfiles.AnyAsync(cancellationToken)
+        };
+
+        _dbContext.AIProfiles.Add(profile);
+        AddAuditLog(currentAdminId, "AIProfileCreate", $"{profile.Id}", profile.Name);
+        await _dbContext.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("AI profile {Id} ({Name}, {Provider}) created", profile.Id, profile.Name, profile.Provider);
+
+        var usageMap = await GetUsageMapAsync(cancellationToken);
+        return ToDto(profile, usageMap);
+    }
+
+    public async Task<AIProfileDto?> UpdateProfileAsync(int id, AIProfileUpdateRequest request, int currentAdminId, CancellationToken cancellationToken = default)
+    {
+        var profile = await _dbContext.AIProfiles.FindAsync(new object[] { id }, cancellationToken);
+        if (profile == null) return null;
+
+        var baseUrlChanged = request.BaseUrl != null && request.BaseUrl.Trim() != profile.BaseUrl;
+        profile.Name = request.Name.Trim();
+        profile.Provider = request.Provider;
+        profile.BaseUrl = ResolveBaseUrl(request.Provider, request.BaseUrl);
+        profile.ApiKey = request.ApiKey.Trim();
+        profile.Model = request.Model.Trim();
+        profile.Temperature = request.Temperature;
+        profile.MaxTokens = request.MaxTokens;
+        profile.PromptPricePer1M = request.PromptPricePer1M;
+        profile.CompletionPricePer1M = request.CompletionPricePer1M;
+        profile.UpdatedAt = DateTime.UtcNow;
+
+        AddAuditLog(currentAdminId, "AIProfileUpdate", $"{profile.Id}", profile.Name);
+        await _dbContext.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("AI profile {Id} updated", profile.Id);
+
+        var usageMap = await GetUsageMapAsync(cancellationToken);
+        return ToDto(profile, usageMap);
+    }
+
+    public async Task<bool> DeleteProfileAsync(int id, int currentAdminId, CancellationToken cancellationToken = default)
+    {
+        var profile = await _dbContext.AIProfiles.FindAsync(new object[] { id }, cancellationToken);
+        if (profile == null) return false;
+
+        var name = profile.Name;
+        _dbContext.AIProfiles.Remove(profile);
+        AddAuditLog(currentAdminId, "AIProfileDelete", $"{id}", name);
+        await _dbContext.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("AI profile {Id} ({Name}) deleted", id, name);
+        return true;
+    }
+
+    public async Task<AIProfileDto> ActivateProfileAsync(int id, int currentAdminId, CancellationToken cancellationToken = default)
+    {
+        var profile = await _dbContext.AIProfiles
+            .FirstOrDefaultAsync(p => p.Id == id, cancellationToken)
+            ?? throw new KeyNotFoundException($"AI profile {id} not found");
+
+        var others = await _dbContext.AIProfiles
+            .Where(p => p.IsActive && p.Id != id)
+            .ToListAsync(cancellationToken);
+        foreach (var other in others)
+            other.IsActive = false;
+
+        profile.IsActive = true;
+        profile.UpdatedAt = DateTime.UtcNow;
+        AddAuditLog(currentAdminId, "AIProfileActivate", $"{id}", profile.Name);
+        await _dbContext.SaveChangesAsync(cancellationToken);
+        _logger.LogInformation("AI profile {Id} ({Name}) activated", id, profile.Name);
+
+        var usageMap = await GetUsageMapAsync(cancellationToken);
+        return ToDto(profile, usageMap);
+    }
+
+    // ==================== Runtime routing ====================
+
+    public async Task<AIProfile?> GetActiveProfileAsync(CancellationToken cancellationToken = default)
+    {
+        return await _dbContext.AIProfiles
+            .FirstOrDefaultAsync(p => p.IsActive, cancellationToken);
+    }
+
+    public async Task<AIAskResult> AskAsync(
+        List<ChatMessage> messages,
+        double? temperature = null,
+        int? maxTokens = null,
+        CancellationToken cancellationToken = default)
+    {
+        var profile = await GetActiveProfileAsync(cancellationToken);
+
+        if (profile == null)
+        {
+            // ponytail: legacy fallback uses the appsettings DeepSeek config; callers still
+            // get a valid ChatResponse and log the query with ProfileId = null.
+            var legacy = await _deepSeekService.AskAsync(new ChatRequest
+            {
+                Messages = messages,
+                Temperature = temperature,
+                MaxTokens = maxTokens
+            }, cancellationToken);
+            return new AIAskResult { Profile = null, Response = legacy };
+        }
+
+        var response = await _chatClient.AskAsync(profile, messages, temperature, maxTokens, cancellationToken);
+        return new AIAskResult { Profile = profile, Response = response };
+    }
+
+    // ==================== Provider metadata ====================
+
+    public async Task<List<string>> GetModelsAsync(int id, CancellationToken cancellationToken = default)
+    {
+        var profile = await _dbContext.AIProfiles
+            .FirstOrDefaultAsync(p => p.Id == id, cancellationToken)
+            ?? throw new KeyNotFoundException($"AI profile {id} not found");
+
+        return await _chatClient.GetModelsAsync(profile, cancellationToken);
+    }
+
+    public async Task<AIBalance?> RefreshBalanceAsync(int id, CancellationToken cancellationToken = default)
+    {
+        var profile = await _dbContext.AIProfiles
+            .FirstOrDefaultAsync(p => p.Id == id, cancellationToken)
+            ?? throw new KeyNotFoundException($"AI profile {id} not found");
+
+        var balance = await _chatClient.GetBalanceAsync(profile, cancellationToken);
+        if (balance != null)
+        {
+            profile.BalanceUsd = balance.Amount;
+            profile.BalanceCurrency = balance.Currency;
+            profile.BalanceUpdatedAt = DateTime.UtcNow;
+            await _dbContext.SaveChangesAsync(cancellationToken);
+        }
+        return balance;
+    }
+
+    // ==================== Usage ====================
+
+    public async Task<AIProfileUsageDto> GetUsageAsync(int id, DateTime from, DateTime to, CancellationToken cancellationToken = default)
+    {
+        var agg = await _dbContext.AIQueries
+            .Where(q => q.ProfileId == id && q.CreatedAt >= from && q.CreatedAt < to)
+            .Select(q => new
+            {
+                q.PromptTokens,
+                q.CompletionTokens,
+                q.TotalTokens,
+                q.CostUsd
+            })
+            .ToListAsync(cancellationToken);
+
+        var profile = await _dbContext.AIProfiles
+            .Where(p => p.Id == id)
+            .Select(p => new { p.BalanceUsd, p.BalanceCurrency })
+            .FirstOrDefaultAsync(cancellationToken);
+
+        return new AIProfileUsageDto
+        {
+            QueryCount = agg.Count,
+            TotalPromptTokens = agg.Sum(a => a.PromptTokens),
+            TotalCompletionTokens = agg.Sum(a => a.CompletionTokens),
+            TotalTokens = agg.Sum(a => a.TotalTokens),
+            TotalCostUsd = agg.Sum(a => a.CostUsd),
+            BalanceUsd = profile?.BalanceUsd,
+            BalanceCurrency = profile?.BalanceCurrency
+        };
+    }
+
+    public async Task<List<AIProfileUsageDayDto>> GetUsageByDayAsync(int id, DateTime from, DateTime to, CancellationToken cancellationToken = default)
+    {
+        var rows = await _dbContext.AIQueries
+            .Where(q => q.ProfileId == id && q.CreatedAt >= from && q.CreatedAt < to)
+            .GroupBy(q => q.CreatedAt.Date)
+            .Select(g => new
+            {
+                Date = g.Key,
+                QueryCount = g.Count(),
+                PromptTokens = g.Sum(q => q.PromptTokens),
+                CompletionTokens = g.Sum(q => q.CompletionTokens),
+                TotalTokens = g.Sum(q => q.TotalTokens),
+                CostUsd = g.Sum(q => q.CostUsd)
+            })
+            .ToListAsync(cancellationToken);
+
+        return rows
+            .OrderBy(r => r.Date)
+            .Select(r => new AIProfileUsageDayDto
+            {
+                Date = DateOnly.FromDateTime(r.Date),
+                QueryCount = r.QueryCount,
+                PromptTokens = r.PromptTokens,
+                CompletionTokens = r.CompletionTokens,
+                TotalTokens = r.TotalTokens,
+                CostUsd = r.CostUsd
+            })
+            .ToList();
+    }
+
+    // ==================== Helpers ====================
+
+    /// <summary>
+    /// Per-profile usage totals (all time) keyed by profile id.
+    /// </summary>
+    private async Task<Dictionary<int, (int QueryCount, int Prompt, int Completion, int Total, decimal Cost)>> GetUsageMapAsync(CancellationToken cancellationToken)
+    {
+        var rows = await _dbContext.AIQueries
+            .Where(q => q.ProfileId != null)
+            .GroupBy(q => q.ProfileId!.Value)
+            .Select(g => new
+            {
+                g.Key,
+                QueryCount = g.Count(),
+                Prompt = g.Sum(q => q.PromptTokens),
+                Completion = g.Sum(q => q.CompletionTokens),
+                Total = g.Sum(q => q.TotalTokens),
+                Cost = g.Sum(q => q.CostUsd)
+            })
+            .ToListAsync(cancellationToken);
+
+        return rows.ToDictionary(r => r.Key, r => (r.QueryCount, r.Prompt, r.Completion, r.Total, r.Cost));
+    }
+
+    private static AIProfileDto ToDto(AIProfile p, Dictionary<int, (int QueryCount, int Prompt, int Completion, int Total, decimal Cost)> usageMap)
+    {
+        usageMap.TryGetValue(p.Id, out var u);
+        return new AIProfileDto
+        {
+            Id = p.Id,
+            Name = p.Name,
+            Provider = p.Provider,
+            BaseUrl = p.BaseUrl,
+            Model = p.Model,
+            IsActive = p.IsActive,
+            Temperature = p.Temperature,
+            PromptPricePer1M = p.PromptPricePer1M,
+            CompletionPricePer1M = p.CompletionPricePer1M,
+            BalanceUsd = p.BalanceUsd,
+            BalanceCurrency = p.BalanceCurrency,
+            BalanceUpdatedAt = p.BalanceUpdatedAt,
+            QueryCount = u.QueryCount,
+            TotalPromptTokens = u.Prompt,
+            TotalCompletionTokens = u.Completion,
+            TotalTokens = u.Total,
+            TotalCostUsd = u.Cost,
+            CreatedAt = p.CreatedAt,
+            UpdatedAt = p.UpdatedAt
+        };
+    }
+
+    /// <summary>
+    /// Resolves the effective base URL: explicit user value wins; otherwise the
+    /// provider's default root. Compatible always requires an explicit URL.
+    /// </summary>
+    private static string ResolveBaseUrl(AIProvider provider, string? baseUrl)
+    {
+        if (!string.IsNullOrWhiteSpace(baseUrl))
+            return baseUrl.Trim().TrimEnd('/');
+
+        return provider switch
+        {
+            AIProvider.DeepSeek => DeepSeekDefaultBaseUrl,
+            AIProvider.OpenAI => OpenAIDefaultBaseUrl,
+            _ => throw new ArgumentException("BaseUrl is required for OpenAI-compatible providers")
+        };
+    }
+
+    private void AddAuditLog(int adminUserId, string action, string targetId, string details = "")
+    {
+        _dbContext.AdminAuditLogs.Add(new Domain.AdminAuditLog
+        {
+            AdminUserId = adminUserId,
+            Action = action,
+            TargetId = targetId,
+            Details = details,
+            At = DateTime.UtcNow
+        });
+    }
+}

src/GreenHome.Infrastructure/Services/AI/IAIProfileService.cs

@@ -0,0 +1,95 @@
+using GreenHome.AI.DeepSeek;
+using GreenHome.Application;
+using GreenHome.Domain;
+
+namespace GreenHome.Infrastructure.Services.AI;
+
+/// <summary>
+/// Result of an AI ask routed through the profile system.
+/// Profile is null when the legacy DeepSeek fallback was used (no active profile).
+/// </summary>
+public sealed class AIAskResult
+{
+    public AIProfile? Profile { get; set; }
+    public ChatResponse? Response { get; set; }
+}
+
+/// <summary>
+/// Manages AI provider profiles (CRUD, activation, models, balance) and routes
+/// AI calls through the active profile. Lives in Infrastructure because it
+/// returns GreenHome.AI.DeepSeek response types.
+/// </summary>
+public interface IAIProfileService
+{
+    // ==================== CRUD ====================
+
+    Task<List<AIProfileDto>> GetProfilesAsync(CancellationToken cancellationToken = default);
+
+    Task<AIProfileDto?> GetProfileAsync(int id, CancellationToken cancellationToken = default);
+
+    Task<AIProfileDto> CreateProfileAsync(AIProfileCreateRequest request, int currentAdminId, CancellationToken cancellationToken = default);
+
+    Task<AIProfileDto?> UpdateProfileAsync(int id, AIProfileUpdateRequest request, int currentAdminId, CancellationToken cancellationToken = default);
+
+    Task<bool> DeleteProfileAsync(int id, int currentAdminId, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Sets the given profile as the single active one (deactivates the rest).
+    /// </summary>
+    Task<AIProfileDto> ActivateProfileAsync(int id, int currentAdminId, CancellationToken cancellationToken = default);
+
+    // ==================== Runtime routing ====================
+
+    /// <summary>
+    /// The currently active profile, or null if none is set.
+    /// </summary>
+    Task<AIProfile?> GetActiveProfileAsync(CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Routes a chat request through the active profile; falls back to the
+    /// legacy configured DeepSeek service when no profile is active.
+    /// </summary>
+    Task<AIAskResult> AskAsync(
+        List<ChatMessage> messages,
+        double? temperature = null,
+        int? maxTokens = null,
+        CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Estimated cost in USD for a query given per-1M-token prices. 0 when prices are unknown.
+    /// </summary>
+    static decimal EstimateCost(decimal? promptPricePer1M, decimal? completionPricePer1M, int promptTokens, int completionTokens)
+    {
+        if (!promptPricePer1M.HasValue && !completionPricePer1M.HasValue)
+            return 0m;
+
+        var cost = (promptPricePer1M ?? 0m) * promptTokens / 1_000_000m
+                 + (completionPricePer1M ?? 0m) * completionTokens / 1_000_000m;
+        return Math.Round(cost, 8);
+    }
+
+    // ==================== Provider metadata ====================
+
+    /// <summary>
+    /// Fetches the model list from the provider's /models endpoint.
+    /// </summary>
+    Task<List<string>> GetModelsAsync(int id, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Fetches the account balance (best-effort), persists it on the profile, and returns it.
+    /// Returns null when the provider has no balance endpoint or the call fails.
+    /// </summary>
+    Task<AIBalance?> RefreshBalanceAsync(int id, CancellationToken cancellationToken = default);
+
+    // ==================== Usage (from the AIQueries log) ====================
+
+    /// <summary>
+    /// Aggregated usage for a profile within a date range (inclusive of `from`, exclusive of `to`).
+    /// </summary>
+    Task<AIProfileUsageDto> GetUsageAsync(int id, DateTime from, DateTime to, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// Per-day usage for a profile within a date range — for charting.
+    /// </summary>
+    Task<List<AIProfileUsageDayDto>> GetUsageByDayAsync(int id, DateTime from, DateTime to, CancellationToken cancellationToken = default);
+}

src/GreenHome.Infrastructure/Services/Report/DailyReportService.cs

@@ -4,6 +4,7 @@ using GreenHome.AI.DeepSeek;
 using GreenHome.Application;
 using GreenHome.Infrastructure.Data;
 using GreenHome.Infrastructure.Extensions;
+using GreenHome.Infrastructure.Services.AI;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
 
@@ -12,16 +13,19 @@ namespace GreenHome.Infrastructure.Services.Report;
 public sealed class DailyReportService : IDailyReportService
 {
     private readonly GreenHomeDbContext _dbContext;
-    private readonly IDeepSeekService _deepSeekService;
+    private readonly IAIProfileService _aiProfileService;
+    private readonly IAIQueryService _aiQueryService;
     private readonly ILogger<DailyReportService> _logger;
 
     public DailyReportService(
         GreenHomeDbContext context,
-        IDeepSeekService deepSeekService,
+        IAIProfileService aiProfileService,
+        IAIQueryService aiQueryService,
         ILogger<DailyReportService> logger)
     {
         _dbContext = context;
-        _deepSeekService = deepSeekService;
+        _aiProfileService = aiProfileService;
+        _aiQueryService = aiQueryService;
         _logger = logger;
     }
 
@@ -128,6 +132,7 @@ public sealed class DailyReportService : IDailyReportService
 
         var stopwatch = Stopwatch.StartNew();
         ChatResponse? aiResponse;
+        AIAskResult? aiResult;
 
         try
         {
@@ -135,18 +140,16 @@ public sealed class DailyReportService : IDailyReportService
                 ? $"تو یک متخصص کشاورزی و گلخانه هستی که در کشت {deviceSettings.ProductType} تخصص داری و داده‌های تلمتری رو تحلیل می‌کنی."
                 : "تو یک متخصص کشاورزی و گلخانه هستی که داده‌های تلمتری رو تحلیل می‌کنی.";
 
-            var chatRequest = new ChatRequest
+            aiResult = await _aiProfileService.AskAsync(
-            {
+                new List<ChatMessage>
-                Model = "deepseek-chat",
-                Messages = new List<ChatMessage>
                 {
                     new() { Role = "system", Content = systemMessage },
                     new() { Role = "user", Content = question }
                 },
-                Temperature = 0.7
+                temperature: 0.7,
-            };
+                cancellationToken: cancellationToken);
 
-            aiResponse = await _deepSeekService.AskAsync(chatRequest, cancellationToken);
+            aiResponse = aiResult.Response;
         }
         catch (Exception ex)
         {
@@ -183,6 +186,8 @@ public sealed class DailyReportService : IDailyReportService
         _dbContext.DailyReports.Add(dailyReport);
         await _dbContext.SaveChangesAsync(cancellationToken);
 
+        await LogAiQueryAsync(aiResult!, question, analysis, request.DeviceId, null, 0.7, stopwatch.ElapsedMilliseconds, cancellationToken);
+
         _logger.LogInformation(
             "گزارش روزانه جدید برای دستگاه {DeviceId} و تاریخ {Date} ایجاد شد. توکن مصرف شده: {Tokens}",
             request.DeviceId, request.PersianDate, dailyReport.TotalTokens);
@@ -281,24 +286,31 @@ public sealed class DailyReportService : IDailyReportService
             : "تو یک متخصص کشاورزی و گلخانه هستی که داده‌های تلمتری رو تحلیل می‌کنی.";
 
         var stopwatch = Stopwatch.StartNew();
-        var chatRequest = new ChatRequest
+        var aiResult = await _aiProfileService.AskAsync(
-        {
+            new List<ChatMessage>
-            Model = "deepseek-chat",
-            Messages = new List<ChatMessage>
             {
                 new() { Role = "system", Content = systemMessage },
                 new() { Role = "user", Content = question }
             },
-            Temperature = 0.7
+            temperature: 0.7,
-        };
+            cancellationToken: cancellationToken);
-
+        var aiResponse = aiResult.Response;
-        var aiResponse = await _deepSeekService.AskAsync(chatRequest, cancellationToken);
         stopwatch.Stop();
 
         if (aiResponse?.Choices == null || aiResponse.Choices.Count == 0 ||
             string.IsNullOrWhiteSpace(aiResponse.Choices[0].Message?.Content))
             throw new InvalidOperationException("پاسخ نامعتبر از سرویس هوش مصنوعی");
 
+        await LogAiQueryAsync(
+            aiResult,
+            question,
+            aiResponse.Choices[0].Message!.Content,
+            request.DeviceId,
+            null,
+            0.7,
+            stopwatch.ElapsedMilliseconds,
+            cancellationToken);
+
         return new DailyReportResponse
         {
             Id = 0,
@@ -378,24 +390,31 @@ public sealed class DailyReportService : IDailyReportService
             : "تو یک متخصص کشاورزی و گلخانه هستی. تحلیل‌های روزانه رو بررسی کن و یک جمع‌بندی ماهانه جامع ارائه بده.";
 
         var stopwatch = Stopwatch.StartNew();
-        var chatRequest = new ChatRequest
+        var aiResult = await _aiProfileService.AskAsync(
-        {
+            new List<ChatMessage>
-            Model = "deepseek-chat",
-            Messages = new List<ChatMessage>
             {
                 new() { Role = "system", Content = systemMessage },
                 new() { Role = "user", Content = question }
             },
-            Temperature = 0.7
+            temperature: 0.7,
-        };
+            cancellationToken: cancellationToken);
-
+        var aiResponse = aiResult.Response;
-        var aiResponse = await _deepSeekService.AskAsync(chatRequest, cancellationToken);
         stopwatch.Stop();
 
         if (aiResponse?.Choices == null || aiResponse.Choices.Count == 0 ||
             string.IsNullOrWhiteSpace(aiResponse.Choices[0].Message?.Content))
             throw new InvalidOperationException("پاسخ نامعتبر از سرویس هوش مصنوعی");
 
+        await LogAiQueryAsync(
+            aiResult,
+            question,
+            aiResponse.Choices[0].Message!.Content,
+            request.DeviceId,
+            null,
+            0.7,
+            stopwatch.ElapsedMilliseconds,
+            cancellationToken);
+
         return new DailyReportResponse
         {
             Id = 0,
@@ -410,4 +429,52 @@ public sealed class DailyReportService : IDailyReportService
             FromCache = false
         };
     }
+
+    // ==================== Helpers ====================
+
+    /// <summary>
+    /// Saves an AIQuery log row for an analysis call (profile + tokens + cost),
+    /// so per-profile usage totals and the daily usage chart include report
+    /// analyses. Never throws — logging must not break report generation.
+    /// </summary>
+    private async Task LogAiQueryAsync(
+        AIAskResult result,
+        string question,
+        string answer,
+        int? deviceId,
+        int? userId,
+        double temperature,
+        long responseTimeMs,
+        CancellationToken cancellationToken)
+    {
+        try
+        {
+            var profile = result.Profile;
+            var usage = result.Response?.Usage;
+
+            var query = new Domain.AIQuery
+            {
+                Question = question,
+                Answer = answer,
+                DeviceId = deviceId,
+                UserId = userId,
+                Model = result.Response?.Model,
+                ProfileId = profile?.Id,
+                CostUsd = profile != null
+                    ? IAIProfileService.EstimateCost(profile.PromptPricePer1M, profile.CompletionPricePer1M, usage?.PromptTokens ?? 0, usage?.CompletionTokens ?? 0)
+                    : 0m,
+                Temperature = temperature,
+                PromptTokens = usage?.PromptTokens ?? 0,
+                CompletionTokens = usage?.CompletionTokens ?? 0,
+                TotalTokens = usage?.TotalTokens ?? 0,
+                ResponseTimeMs = responseTimeMs
+            };
+
+            await _aiQueryService.SaveQueryAsync(query, cancellationToken);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(ex, "خطا در ذخیره لاگ کوئری AI برای گزارش");
+        }
+    }
 }

src/GreenHome.Web/src/App.tsx

@@ -21,6 +21,7 @@ import AdminPostsPage from '@/app/admin/posts/page'
 import AdminUsagePage from '@/app/admin/usage/page'
 import AdminReportsPage from '@/app/admin/reports/page'
 import AdminAuditPage from '@/app/admin/audit/page'
+import AdminAIPage from '@/app/admin/ai/page'
 
 function DeviceRedirect() {
     const location = useLocation()
@@ -55,6 +56,7 @@ export default function App() {
                             <Route path="usage" element={<AdminUsagePage />} />
                             <Route path="reports" element={<AdminReportsPage />} />
                             <Route path="audit" element={<AdminAuditPage />} />
+                            <Route path="ai" element={<AdminAIPage />} />
                         </Route>
                         <Route path="/alert-settings" element={<DeviceRedirect />} />
                         <Route path="*" element={<Navigate to="/" replace />} />

src/GreenHome.Web/src/app/admin/AdminLayout.tsx

@@ -3,7 +3,7 @@
 import { useState } from 'react'
 import { Outlet, useLocation } from 'react-router-dom'
 import { Link, useRouter } from '@/lib/router'
-import { LayoutDashboard, Users, Cpu, BarChart3, ArrowRight, Bell, MessageSquare, ScrollText, LogOut, FileBarChart } from 'lucide-react'
+import { LayoutDashboard, Users, Cpu, BarChart3, ArrowRight, Bell, MessageSquare, ScrollText, LogOut, FileBarChart, BrainCircuit } from 'lucide-react'
 import { cn } from '@/lib/utils'
 import { Badge } from '@/components/common/Badge'
 import { Button } from '@/components/common/Button'
@@ -15,6 +15,7 @@ const NAV_ITEMS = [
     { href: '/admin/alerts', label: 'اعلان‌ها', icon: Bell, exact: false },
     { href: '/admin/posts', label: 'پست‌ها', icon: MessageSquare, exact: false },
     { href: '/admin/usage', label: 'مصرف', icon: BarChart3, exact: false },
+    { href: '/admin/ai', label: 'هوش مصنوعی', icon: BrainCircuit, exact: false },
     { href: '/admin/reports', label: 'گزارش‌ها', icon: FileBarChart, exact: false },
     { href: '/admin/audit', label: 'گزارش اعمال', icon: ScrollText, exact: false },
 ]

src/GreenHome.Web/src/app/admin/ai/page.tsx

@@ -0,0 +1,520 @@
+'use client'
+
+import { useCallback, useEffect, useState } from 'react'
+import {
+    BrainCircuit, Plus, Pencil, Trash2, RefreshCw, Check, DollarSign,
+    Hash, Zap, List, Loader2, Wallet,
+} from 'lucide-react'
+import { api, AiProfile, AiProfileRequest, AiProfileUsageDay, AiBalance } from '@/lib/api'
+import { toPersianDigits } from '@/lib/format/persian-digits'
+import { formatPersianDateFromIso } from '@/lib/date/persian-date'
+import { Button } from '@/components/common/Button'
+import { Badge } from '@/components/common/Badge'
+import { Modal } from '@/components/common/Modal'
+import { FormInput } from '@/components/forms/FormInput'
+import { Select } from '@/components/forms/Select'
+import { LineChart } from '@/components/Charts'
+
+const PROVIDER_LABELS: Record<number, string> = {
+    0: 'DeepSeek',
+    1: 'OpenAI',
+    2: 'سازگار با OpenAI',
+}
+
+function toIsoDate(d: Date): string {
+    return d.toISOString().slice(0, 10)
+}
+
+function daysAgo(n: number): string {
+    const d = new Date()
+    d.setDate(d.getDate() - n)
+    return toIsoDate(d)
+}
+
+function providerOf(p: number): string {
+    return PROVIDER_LABELS[p] ?? 'نامشخص'
+}
+
+// ==================== Main Page ====================
+
+export default function AdminAIPage() {
+    const [profiles, setProfiles] = useState<AiProfile[]>([])
+    const [loading, setLoading] = useState(true)
+    const [error, setError] = useState('')
+    const [formOpen, setFormOpen] = useState(false)
+    const [editing, setEditing] = useState<AiProfile | null>(null)
+    const [saving, setSaving] = useState(false)
+    const [busyId, setBusyId] = useState<number | null>(null)
+    const [expandedId, setExpandedId] = useState<number | null>(null)
+
+    const fetchProfiles = useCallback(async () => {
+        setLoading(true)
+        setError('')
+        try {
+            const data = await api.adminAiProfiles()
+            setProfiles(data)
+        } catch (e) {
+            setError((e as Error).message || 'خطا در دریافت پروفایل‌ها')
+        } finally {
+            setLoading(false)
+        }
+    }, [])
+
+    useEffect(() => {
+        fetchProfiles()
+    }, [fetchProfiles])
+
+    const handleSave = async (req: AiProfileRequest) => {
+        setSaving(true)
+        setError('')
+        try {
+            if (editing) {
+                await api.adminAiProfileUpdate(editing.id, req)
+            } else {
+                await api.adminAiProfileCreate(req)
+            }
+            setFormOpen(false)
+            setEditing(null)
+            await fetchProfiles()
+        } catch (e) {
+            setError((e as Error).message || 'خطا در ذخیره پروفایل')
+        } finally {
+            setSaving(false)
+        }
+    }
+
+    const handleActivate = async (id: number) => {
+        setBusyId(id)
+        setError('')
+        try {
+            await api.adminAiProfileActivate(id)
+            await fetchProfiles()
+        } catch (e) {
+            setError((e as Error).message || 'خطا در فعال‌سازی پروفایل')
+        } finally {
+            setBusyId(null)
+        }
+    }
+
+    const handleDelete = async (id: number) => {
+        if (!window.confirm('آیا از حذف این پروفایل مطمئن هستید؟')) return
+        setBusyId(id)
+        setError('')
+        try {
+            await api.adminAiProfileDelete(id)
+            if (expandedId === id) setExpandedId(null)
+            await fetchProfiles()
+        } catch (e) {
+            setError((e as Error).message || 'خطا در حذف پروفایل')
+        } finally {
+            setBusyId(null)
+        }
+    }
+
+    const handleRefreshBalance = async (id: number) => {
+        setBusyId(id)
+        setError('')
+        try {
+            const res = await api.adminAiProfileRefreshBalance(id)
+            if (!res.success && res.message) {
+                setError(res.message)
+            }
+            await fetchProfiles()
+        } catch (e) {
+            setError((e as Error).message || 'خطا در دریافت موجودی')
+        } finally {
+            setBusyId(null)
+        }
+    }
+
+    const totals = profiles.reduce(
+        (acc, p) => ({
+            queries: acc.queries + p.queryCount,
+            tokens: acc.tokens + p.totalTokens,
+            cost: acc.cost + p.totalCostUsd,
+        }),
+        { queries: 0, tokens: 0, cost: 0 }
+    )
+
+    return (
+        <div className="space-y-4">
+            <div className="flex items-center justify-between gap-3 flex-wrap">
+                <h2 className="text-base font-bold text-gray-900">پروفایل‌های هوش مصنوعی</h2>
+                <Button
+                    size="sm"
+                    variant="success"
+                    onClick={() => { setEditing(null); setFormOpen(true) }}
+                >
+                    <Plus className="w-4 h-4" />
+                    افزودن پروفایل
+                </Button>
+            </div>
+
+            <div className="grid grid-cols-3 gap-3">
+                <SummaryCard icon={Hash} label="کل درخواست AI" value={toPersianDigits(totals.queries)} />
+                <SummaryCard icon={Zap} label="کل توکن AI" value={toPersianDigits(totals.tokens)} />
+                <SummaryCard icon={DollarSign} label="کل هزینه (دلار)" value={totals.cost.toLocaleString('en', { maximumFractionDigits: 4 })} />
+            </div>
+
+            {error && <p className="text-sm text-red-600 bg-red-50 rounded-xl p-3">{error}</p>}
+
+            {loading ? (
+                <div className="bg-white rounded-xl border border-gray-200 divide-y divide-gray-100">
+                    {Array.from({ length: 3 }).map((_, i) => (
+                        <div key={i} className="p-4 animate-pulse">
+                            <div className="h-4 w-1/3 bg-gray-100 rounded" />
+                        </div>
+                    ))}
+                </div>
+            ) : profiles.length > 0 ? (
+                <div className="space-y-3">
+                    {profiles.map((p) => (
+                        <ProfileCard
+                            key={p.id}
+                            profile={p}
+                            busy={busyId === p.id}
+                            expanded={expandedId === p.id}
+                            onToggleExpand={() => setExpandedId(expandedId === p.id ? null : p.id)}
+                            onActivate={() => handleActivate(p.id)}
+                            onDelete={() => handleDelete(p.id)}
+                            onRefreshBalance={() => handleRefreshBalance(p.id)}
+                            onEdit={() => { setEditing(p); setFormOpen(true) }}
+                        />
+                    ))}
+                </div>
+            ) : (
+                <div className="bg-white rounded-xl border border-gray-200 p-8 text-center">
+                    <BrainCircuit className="w-10 h-10 text-gray-300 mx-auto mb-3" />
+                    <p className="text-sm text-gray-500">هنوز پروفایلی ثبت نشده است.</p>
+                    <p className="text-xs text-gray-400 mt-1">اولین پروفایل AI را اضافه کنید تا تحلیل‌ها از طریق آن انجام شود.</p>
+                </div>
+            )}
+
+            <ProfileFormModal
+                isOpen={formOpen}
+                editing={editing}
+                saving={saving}
+                onClose={() => { setFormOpen(false); setEditing(null) }}
+                onSave={handleSave}
+            />
+        </div>
+    )
+}
+
+function SummaryCard({ icon: Icon, label, value }: { icon: typeof BrainCircuit; label: string; value: string }) {
+    return (
+        <div className="bg-white rounded-xl border border-gray-200 shadow-sm p-4">
+            <div className="flex items-center gap-3">
+                <div className="w-10 h-10 rounded-lg bg-gray-50 flex items-center justify-center">
+                    <Icon className="w-5 h-5 text-gray-500" />
+                </div>
+                <div>
+                    <p className="text-xl font-bold text-gray-900 leading-tight">{value}</p>
+                    <p className="text-xs text-gray-500">{label}</p>
+                </div>
+            </div>
+        </div>
+    )
+}
+
+// ==================== Profile Card ====================
+
+function ProfileCard({
+    profile, busy, expanded, onToggleExpand, onActivate, onDelete, onRefreshBalance, onEdit,
+}: {
+    profile: AiProfile
+    busy: boolean
+    expanded: boolean
+    onToggleExpand: () => void
+    onActivate: () => void
+    onDelete: () => void
+    onRefreshBalance: () => void
+    onEdit: () => void
+}) {
+    const balanceText = profile.balanceUsd != null
+        ? `${profile.balanceUsd.toLocaleString('en', { maximumFractionDigits: 4 })} ${profile.balanceCurrency ?? ''}`
+        : null
+
+    return (
+        <div className="bg-white rounded-xl border border-gray-200 shadow-sm overflow-hidden">
+            <div className="p-4">
+                <div className="flex items-start justify-between gap-3 flex-wrap">
+                    <div className="min-w-0">
+                        <div className="flex items-center gap-2 flex-wrap">
+                            <h3 className="font-bold text-gray-900">{profile.name}</h3>
+                            {profile.isActive && <Badge variant="success">فعال</Badge>}
+                            <Badge variant="default">{providerOf(profile.provider)}</Badge>
+                        </div>
+                        <p className="text-xs text-gray-500 mt-1 truncate" dir="ltr" style={{ textAlign: 'right' }}>
+                            {profile.model}
+                        </p>
+                    </div>
+                    <div className="flex items-center gap-1.5 flex-wrap">
+                        {balanceText && (
+                            <Badge variant="default" icon={Wallet}>{balanceText}</Badge>
+                        )}
+                        <Button size="sm" variant="default" onClick={onToggleExpand}>
+                            <List className="w-4 h-4" />
+                            مصرف
+                        </Button>
+                        <Button size="sm" variant="default" onClick={onRefreshBalance} disabled={busy} title="به‌روزرسانی موجودی">
+                            {busy ? <Loader2 className="w-4 h-4 animate-spin" /> : <RefreshCw className="w-4 h-4" />}
+                        </Button>
+                        <Button size="sm" variant="default" onClick={onEdit} disabled={busy}>
+                            <Pencil className="w-4 h-4" />
+                        </Button>
+                        <Button size="sm" variant="danger" onClick={onDelete} disabled={busy}>
+                            <Trash2 className="w-4 h-4" />
+                        </Button>
+                        {!profile.isActive && (
+                            <Button size="sm" variant="success" onClick={onActivate} disabled={busy}>
+                                <Check className="w-4 h-4" />
+                                فعال‌سازی
+                            </Button>
+                        )}
+                    </div>
+                </div>
+
+                <div className="grid grid-cols-2 md:grid-cols-4 gap-2 mt-4 text-center">
+                    <Stat label="درخواست" value={toPersianDigits(profile.queryCount)} />
+                    <Stat label="توکن" value={toPersianDigits(profile.totalTokens)} />
+                    <Stat label="هزینه (دلار)" value={profile.totalCostUsd.toLocaleString('en', { maximumFractionDigits: 4 })} />
+                    <Stat
+                        label="به‌روزرسانی موجودی"
+                        value={profile.balanceUpdatedAt ? formatPersianDateFromIso(profile.balanceUpdatedAt) : '—'}
+                    />
+                </div>
+            </div>
+
+            {expanded && <UsageSection profileId={profile.id} profileName={profile.name} />}
+        </div>
+    )
+}
+
+function Stat({ label, value }: { label: string; value: string }) {
+    return (
+        <div className="bg-gray-50 rounded-lg p-2">
+            <p className="text-sm font-bold text-gray-900">{value}</p>
+            <p className="text-[11px] text-gray-500">{label}</p>
+        </div>
+    )
+}
+
+// ==================== Usage (chart + table) ====================
+
+function UsageSection({ profileId, profileName }: { profileId: number; profileName: string }) {
+    const [days, setDays] = useState<AiProfileUsageDay[] | null>(null)
+    const [error, setError] = useState('')
+
+    useEffect(() => {
+        let cancelled = false
+        api.adminAiProfileUsageDaily(profileId, { from: daysAgo(29), to: toIsoDate(new Date()) })
+            .then((data) => { if (!cancelled) setDays(data) })
+            .catch((e) => { if (!cancelled) setError((e as Error).message || 'خطا در دریافت مصرف') })
+        return () => { cancelled = true }
+    }, [profileId])
+
+    if (error) return <p className="text-sm text-red-600 px-4 pb-4">{error}</p>
+    if (!days) {
+        return (
+            <div className="px-4 pb-4">
+                <div className="h-48 bg-gray-50 rounded-lg animate-pulse" />
+            </div>
+        )
+    }
+    if (days.length === 0) {
+        return <p className="text-xs text-gray-500 px-4 pb-4">در ۳۰ روز اخیر مصرفی برای «{profileName}» ثبت نشده است.</p>
+    }
+
+    const labels = days.map((d) => formatPersianDateFromIso(d.date))
+    const sorted = [...days].sort((a, b) => a.date.localeCompare(b.date))
+
+    return (
+        <div className="border-t border-gray-100 p-4 space-y-3">
+            <h4 className="text-sm font-bold text-gray-700">مصرف روزانه ۳۰ روز اخیر</h4>
+            <LineChart
+                labels={labels}
+                series={[
+                    { label: 'توکن', data: sorted.map((d) => d.totalTokens), borderColor: '#16a34a', fill: true },
+                    { label: 'هزینه (دلار)', data: sorted.map((d) => d.costUsd), borderColor: '#f59e0b' },
+                ]}
+            />
+            <div className="overflow-x-auto">
+                <table className="w-full text-xs">
+                    <thead>
+                        <tr className="text-gray-500 border-b border-gray-200">
+                            <th className="text-right font-medium py-2 px-3">تاریخ</th>
+                            <th className="text-left font-medium py-2 px-3">درخواست</th>
+                            <th className="text-left font-medium py-2 px-3">توکن ورودی</th>
+                            <th className="text-left font-medium py-2 px-3">توکن خروجی</th>
+                            <th className="text-left font-medium py-2 px-3">کل توکن</th>
+                            <th className="text-left font-medium py-2 px-3">هزینه (دلار)</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        {[...days].reverse().map((d) => (
+                            <tr key={d.date} className="border-b border-gray-100 last:border-0">
+                                <td className="py-2 px-3 text-gray-900">{formatPersianDateFromIso(d.date)}</td>
+                                <td className="py-2 px-3 text-left tabular-nums text-gray-700">{toPersianDigits(d.queryCount)}</td>
+                                <td className="py-2 px-3 text-left tabular-nums text-gray-700">{toPersianDigits(d.promptTokens)}</td>
+                                <td className="py-2 px-3 text-left tabular-nums text-gray-700">{toPersianDigits(d.completionTokens)}</td>
+                                <td className="py-2 px-3 text-left tabular-nums text-gray-700">{toPersianDigits(d.totalTokens)}</td>
+                                <td className="py-2 px-3 text-left tabular-nums text-gray-700">{d.costUsd.toLocaleString('en', { maximumFractionDigits: 6 })}</td>
+                            </tr>
+                        ))}
+                    </tbody>
+                </table>
+            </div>
+        </div>
+    )
+}
+
+// ==================== Form Modal ====================
+
+const emptyForm = {
+    name: '', provider: '0', baseUrl: '', apiKey: '', model: '',
+    temperature: '', maxTokens: '', promptPrice: '', completionPrice: '',
+}
+
+function ProfileFormModal({
+    isOpen, editing, saving, onClose, onSave,
+}: {
+    isOpen: boolean
+    editing: AiProfile | null
+    saving: boolean
+    onClose: () => void
+    onSave: (req: AiProfileRequest) => void
+}) {
+    const [form, setForm] = useState(emptyForm)
+    const [error, setError] = useState('')
+    const [models, setModels] = useState<string[]>([])
+    const [fetchingModels, setFetchingModels] = useState(false)
+
+    useEffect(() => {
+        if (!isOpen) return
+        setError('')
+        setModels([])
+        if (editing) {
+            setForm({
+                name: editing.name,
+                provider: String(editing.provider),
+                baseUrl: editing.baseUrl ?? '',
+                apiKey: '',
+                model: editing.model,
+                temperature: editing.temperature != null ? String(editing.temperature) : '',
+                maxTokens: '',
+                promptPrice: editing.promptPricePer1M != null ? String(editing.promptPricePer1M) : '',
+                completionPrice: editing.completionPricePer1M != null ? String(editing.completionPricePer1M) : '',
+            })
+        } else {
+            setForm(emptyForm)
+        }
+    }, [isOpen, editing])
+
+    const set = (key: keyof typeof emptyForm) => (v: string) => setForm((f) => ({ ...f, [key]: v }))
+
+    const handleFetchModels = async () => {
+        // For a new profile we can't call the models endpoint (no id yet).
+        // ponytail: fetch-models only supported on existing profiles; new profiles use a free-text model field.
+        if (!editing) return
+        setFetchingModels(true)
+        setError('')
+        try {
+            const list = await api.adminAiProfileModels(editing.id)
+            setModels(list)
+            if (list.length === 0) setError('لیست مدل‌های خالی برگشت داده شد.')
+        } catch (e) {
+            setError((e as Error).message || 'خطا در دریافت لیست مدل‌ها')
+        } finally {
+            setFetchingModels(false)
+        }
+    }
+
+    const handleSubmit = () => {
+        if (!form.name.trim()) return setError('نام پروفایل الزامی است')
+        if (!form.apiKey.trim()) return setError('کلید API الزامی است')
+        if (!form.model.trim()) return setError('مدل الزامی است')
+        const req: AiProfileRequest = {
+            name: form.name.trim(),
+            provider: Number(form.provider) as 0 | 1 | 2,
+            baseUrl: form.baseUrl.trim() || null,
+            apiKey: form.apiKey.trim(),
+            model: form.model.trim(),
+            temperature: form.temperature ? Number(form.temperature) : null,
+            maxTokens: form.maxTokens ? Number(form.maxTokens) : null,
+            promptPricePer1M: form.promptPrice ? Number(form.promptPrice) : null,
+            completionPricePer1M: form.completionPrice ? Number(form.completionPrice) : null,
+        }
+        onSave(req)
+    }
+
+    return (
+        <Modal isOpen={isOpen} onClose={onClose} title={editing ? 'ویرایش پروفایل AI' : 'افزودن پروفایل AI'} size="lg">
+            <div className="space-y-4">
+                {error && <p className="text-sm text-red-600 bg-red-50 rounded-xl p-3">{error}</p>}
+
+                <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <FormInput label="نام پروفایل" value={form.name} onChange={(e) => set('name')(e.target.value)} placeholder="مثلاً DeepSeek اصلی" />
+                    <Select label="نوع سرویس" value={form.provider} onChange={(e) => set('provider')(e.target.value)}>
+                        <option value={0}>DeepSeek</option>
+                        <option value={1}>OpenAI</option>
+                        <option value={2}>سازگار با OpenAI</option>
+                    </Select>
+                </div>
+
+                <FormInput
+                    label="Base URL"
+                    value={form.baseUrl}
+                    onChange={(e) => set('baseUrl')(e.target.value)}
+                    placeholder="https://api.deepseek.com/v1"
+                    helperText="برای DeepSeek و OpenAI پیش‌فرض وجود دارد؛ برای سرویس سازگار با OpenAI الزامی است (با /v1)."
+                />
+
+                <FormInput
+                    label="کلید API"
+                    type="password"
+                    value={form.apiKey}
+                    onChange={(e) => set('apiKey')(e.target.value)}
+                    placeholder="sk-..."
+                    helperText={editing ? 'خالی بگذارید تا کلید فعلی حفظ شود.' : undefined}
+                />
+
+                <div>
+                    <div className="flex items-end gap-2">
+                        <div className="flex-1">
+                            {models.length > 0 ? (
+                                <Select label="مدل" value={form.model} onChange={(e) => set('model')(e.target.value)}>
+                                    <option value="" disabled>انتخاب مدل…</option>
+                                    {models.map((m) => <option key={m} value={m}>{m}</option>)}
+                                </Select>
+                            ) : (
+                                <FormInput label="مدل" value={form.model} onChange={(e) => set('model')(e.target.value)} placeholder="deepseek-chat" />
+                            )}
+                        </div>
+                        {editing && (
+                            <Button size="sm" variant="default" onClick={handleFetchModels} disabled={fetchingModels} className="mb-0.5">
+                                {fetchingModels ? <Loader2 className="w-4 h-4 animate-spin" /> : <List className="w-4 h-4" />}
+                                مدل‌ها
+                            </Button>
+                        )}
+                    </div>
+                </div>
+
+                <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
+                    <FormInput label="دما (Temperature)" type="number" step="0.1" value={form.temperature} onChange={(e) => set('temperature')(e.target.value)} placeholder="0.7" />
+                    <FormInput label="حداکثر توکن" type="number" value={form.maxTokens} onChange={(e) => set('maxTokens')(e.target.value)} />
+                    <FormInput label="قیمت توکن ورودی (به ازای ۱M)" type="number" step="0.0001" value={form.promptPrice} onChange={(e) => set('promptPrice')(e.target.value)} />
+                    <FormInput label="قیمت توکن خروجی (به ازای ۱M)" type="number" step="0.0001" value={form.completionPrice} onChange={(e) => set('completionPrice')(e.target.value)} />
+                </div>
+
+                <div className="flex items-center justify-end gap-2 pt-2 border-t border-gray-100">
+                    <Button variant="default" onClick={onClose}>انصراف</Button>
+                    <Button variant="success" onClick={handleSubmit} disabled={saving}>
+                        {saving && <Loader2 className="w-4 h-4 animate-spin" />}
+                        {editing ? 'ذخیره تغییرات' : 'افزودن'}
+                    </Button>
+                </div>
+            </div>
+        </Modal>
+    )
+}

src/GreenHome.Web/src/lib/api/client.ts

@@ -35,6 +35,10 @@ import type {
     AdminUserGrowthRow,
     AdminDeviceUptimeRow,
     AdminUsageByUserRow,
+    AiProfile,
+    AiProfileRequest,
+    AiBalance,
+    AiProfileUsageDay,
 } from './types'
 
 const API_BASE = import.meta.env.VITE_API_URL ?? ''
@@ -297,6 +301,22 @@ export const api = {
         http<AdminDeviceUptimeRow[]>(`${API_BASE}/api/admin/reports/devices-uptime${ReportParams(q)}`),
     adminReportUsageByUser: (q: { from?: string; to?: string }) =>
         http<AdminUsageByUserRow[]>(`${API_BASE}/api/admin/reports/usage-by-user${ReportParams(q)}`),
+    // AI Profiles
+    adminAiProfiles: () => http<AiProfile[]>(`${API_BASE}/api/admin/ai-profiles`),
+    adminAiProfileCreate: (req: AiProfileRequest) =>
+        http<AiProfile>(`${API_BASE}/api/admin/ai-profiles`, { method: 'POST', body: JSON.stringify(req) }),
+    adminAiProfileUpdate: (id: number, req: AiProfileRequest) =>
+        http<AiProfile>(`${API_BASE}/api/admin/ai-profiles/${id}`, { method: 'PUT', body: JSON.stringify(req) }),
+    adminAiProfileDelete: (id: number) =>
+        http<void>(`${API_BASE}/api/admin/ai-profiles/${id}`, { method: 'DELETE' }),
+    adminAiProfileActivate: (id: number) =>
+        http<AiProfile>(`${API_BASE}/api/admin/ai-profiles/${id}/activate`, { method: 'POST' }),
+    adminAiProfileModels: (id: number) =>
+        http<string[]>(`${API_BASE}/api/admin/ai-profiles/${id}/models`),
+    adminAiProfileRefreshBalance: (id: number) =>
+        http<{ success: boolean; balance?: AiBalance; message?: string }>(`${API_BASE}/api/admin/ai-profiles/${id}/refresh-balance`, { method: 'POST' }),
+    adminAiProfileUsageDaily: (id: number, q: { from?: string; to?: string }) =>
+        http<AiProfileUsageDay[]>(`${API_BASE}/api/admin/ai-profiles/${id}/usage/daily${ReportParams(q)}`),
     adminReportCsv: async (path: string, q: { from?: string; to?: string }) => {
         const res = await fetch(`${API_BASE}/api/admin/reports/${path}${ReportParams(q)}&csv=1`, {
             headers: csvAuthHeaders(),

src/GreenHome.Web/src/lib/api/types.ts

@@ -474,3 +474,55 @@ export type AdminAuditLogItem = {
     at: string
 }
 
+// ==================== AI Profiles ====================
+
+export type AiProvider = 0 | 1 | 2 // 0=DeepSeek, 1=OpenAI, 2=OpenAICompatible
+
+export type AiProfile = {
+    id: number
+    name: string
+    provider: AiProvider
+    baseUrl: string
+    model: string
+    isActive: boolean
+    temperature?: number | null
+    promptPricePer1M?: number | null
+    completionPricePer1M?: number | null
+    balanceUsd?: number | null
+    balanceCurrency?: string | null
+    balanceUpdatedAt?: string | null
+    queryCount: number
+    totalPromptTokens: number
+    totalCompletionTokens: number
+    totalTokens: number
+    totalCostUsd: number
+    createdAt: string
+    updatedAt: string
+}
+
+export type AiProfileRequest = {
+    name: string
+    provider: AiProvider
+    baseUrl?: string | null
+    apiKey: string
+    model: string
+    temperature?: number | null
+    maxTokens?: number | null
+    promptPricePer1M?: number | null
+    completionPricePer1M?: number | null
+}
+
+export type AiBalance = {
+    amount: number
+    currency?: string | null
+}
+
+export type AiProfileUsageDay = {
+    date: string
+    queryCount: number
+    promptTokens: number
+    completionTokens: number
+    totalTokens: number
+    costUsd: number
+}
+