Add endpoint for indicator refiner

src/Managing.Api/Controllers/TradingController.cs

@@ -1,6 +1,7 @@
 using System.Net.Http.Headers;
 using System.Text;
 using Managing.Api.Models.Requests;
+using Managing.Api.Models.Responses;
 using Managing.Application.Abstractions;
 using Managing.Application.Abstractions.Services;
 using Managing.Application.Shared;
@@ -340,4 +341,54 @@ public class TradingController : BaseController
             });
         }
     }
+
+    /// <summary>
+    /// Calculates indicator values and generates signals for a given ticker, timeframe, and date range with selected indicators.
+    /// </summary>
+    /// <param name="request">The request containing ticker, timeframe, date range, and indicators configuration.</param>
+    /// <returns>A response containing calculated indicator values and generated signals.</returns>
+    [HttpPost("RefineIndicators")]
+    public async Task<ActionResult<RefineIndicatorsResponse>> RefineIndicators(
+        [FromBody] RefineIndicatorsRequest request)
+    {
+        try
+        {
+            // Validate request
+            if (request == null)
+            {
+                return BadRequest("Request cannot be null.");
+            }
+
+            if (request.Indicators == null || request.Indicators.Count == 0)
+            {
+                return BadRequest("At least one indicator must be provided.");
+            }
+
+            if (request.StartDate >= request.EndDate)
+            {
+                return BadRequest("Start date must be before end date.");
+            }
+
+            // Call service - request.Indicators is already List<IndicatorRequest>
+            var result = await _tradingService.RefineIndicatorsAsync(
+                request.Ticker,
+                request.Timeframe,
+                request.StartDate,
+                request.EndDate,
+                request.Indicators);
+
+            // Map service result to API response
+            return Ok(new RefineIndicatorsResponse
+            {
+                IndicatorsValues = result.IndicatorsValues,
+                Signals = result.Signals
+            });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error refining indicators for ticker {Ticker}, timeframe {Timeframe}",
+                request?.Ticker, request?.Timeframe);
+            return StatusCode(500, $"Error refining indicators: {ex.Message}");
+        }
+    }
 }