新增仪表盘API端点：NC程序产量排行TOP10和NC程序产量分布（饼图数据）

src/CncRepository/Impl/Dashboard/DashboardRepository.cs

@@ -249,6 +249,52 @@ namespace CncRepository.Impl.Dashboard
             }
         }
 
+        /// <summary>NC程序产量排行</summary>
+        public List<ProgramRankItem> GetProgramRank(DateTime startDate, DateTime endDate, int top, string sortOrder = "desc")
+        {
+            var orderBy = string.Equals(sortOrder, "asc", StringComparison.OrdinalIgnoreCase) ? "ASC" : "DESC";
+            using (var conn = CreateConnection())
+            {
+                var sql = $@"
+                    SELECT seg.program_name AS ProgramName,
+                           SUM(CASE WHEN seg.is_settled=1 THEN seg.quantity
+                                ELSE COALESCE(seg.end_part_count, seg.start_part_count) - seg.start_part_count END) AS TotalQuantity,
+                           COUNT(DISTINCT seg.machine_id) AS MachineCount
+                    FROM cnc_production_segment seg
+                    WHERE seg.production_date BETWEEN @StartDate AND @EndDate
+                    GROUP BY seg.program_name
+                    ORDER BY TotalQuantity {orderBy}
+                    LIMIT @Top";
+                var rows = conn.Query<ProgramRankItem>(sql, new { StartDate = startDate, EndDate = endDate, Top = top }).ToList();
+                for (int i = 0; i < rows.Count; i++) rows[i].Rank = i + 1;
+                return rows;
+            }
+        }
+
+        /// <summary>NC程序产量分布</summary>
+        public List<ProgramDistributionItem> GetProgramDistribution(DateTime startDate, DateTime endDate, int top = 10)
+        {
+            using (var conn = CreateConnection())
+            {
+                var sql = @"
+                    SELECT seg.program_name AS ProgramName,
+                           SUM(CASE WHEN seg.is_settled=1 THEN seg.quantity
+                                ELSE COALESCE(seg.end_part_count, seg.start_part_count) - seg.start_part_count END) AS TotalQuantity
+                    FROM cnc_production_segment seg
+                    WHERE seg.production_date BETWEEN @StartDate AND @EndDate
+                    GROUP BY seg.program_name
+                    ORDER BY TotalQuantity DESC
+                    LIMIT @Top";
+                var rows = conn.Query<ProgramDistributionItem>(sql, new { StartDate = startDate, EndDate = endDate, Top = top }).ToList();
+                var total = rows.Sum(r => r.TotalQuantity);
+                if (total > 0)
+                {
+                    foreach (var r in rows) r.Percentage = Math.Round((decimal)r.TotalQuantity / total * 100, 2);
+                }
+                return rows;
+            }
+        }
+
         /// <summary>最近告警</summary>
         public List<AlertListItem> GetRecentAlerts(int count)
         {

src/CncRepository/Interface/IDashboardRepository.cs

@@ -22,5 +22,11 @@ namespace CncRepository.Interface
         object GetMachineStatusDistribution();
 
         List<AlertListItem> GetRecentAlerts(int count);
+
+        /// <summary>NC程序产量排行TOP N</summary>
+        List<ProgramRankItem> GetProgramRank(DateTime startDate, DateTime endDate, int top, string sortOrder = "desc");
+
+        /// <summary>NC程序产量分布（饼图数据）</summary>
+        List<ProgramDistributionItem> GetProgramDistribution(DateTime startDate, DateTime endDate, int top = 10);
     }
 }

src/CncService/Impl/DashboardService.cs

@@ -69,6 +69,22 @@ namespace CncService.Impl
             return _dashboardRepository.GetMachineStatusDistribution();
         }
 
+        /// <inheritdoc/>
+        public List<ProgramRankItem> GetProgramRank(DateTime? startDate, DateTime? endDate, int top = 10, string sortOrder = "desc")
+        {
+            var s = startDate ?? DateTime.Today;
+            var e = endDate ?? DateTime.Today;
+            return _dashboardRepository.GetProgramRank(s, e, top, sortOrder);
+        }
+
+        /// <inheritdoc/>
+        public List<ProgramDistributionItem> GetProgramDistribution(DateTime? startDate, DateTime? endDate, int top = 10)
+        {
+            var s = startDate ?? DateTime.Today;
+            var e = endDate ?? DateTime.Today;
+            return _dashboardRepository.GetProgramDistribution(s, e, top);
+        }
+
         /// <inheritdoc/>
         public List<AlertListItem> GetRecentAlerts(int count = 5)
         {

src/CncService/Interface/IDashboardService.cs

@@ -24,5 +24,11 @@ namespace CncService.Interface
         List<AlertListItem> GetRecentAlerts(int count = 5);
 
         object GetCollectorStatus();
+
+        /// <summary>NC程序产量排行TOP N</summary>
+        List<ProgramRankItem> GetProgramRank(DateTime? startDate, DateTime? endDate, int top = 10, string sortOrder = "desc");
+
+        /// <summary>NC程序产量分布（饼图数据）</summary>
+        List<ProgramDistributionItem> GetProgramDistribution(DateTime? startDate, DateTime? endDate, int top = 10);
     }
 }

src/CncWebApi/Controllers/DashboardController.cs

@@ -116,6 +116,30 @@ namespace CncWebApi.Controllers
             return Ok(ApiResponse<object>.Success(new { items = result }));
         }
 
+        /// <summary>
+        /// NC程序产量排行TOP N
+        /// GET /api/admin/dashboard/program-rank
+        /// </summary>
+        [HttpGet]
+        [Route("program-rank")]
+        public IHttpActionResult GetProgramRank(DateTime? startDate = null, DateTime? endDate = null, int top = 10, string sortOrder = "desc")
+        {
+            var result = _dashboardService.GetProgramRank(startDate, endDate, top, sortOrder);
+            return Ok(ApiResponse<object>.Success(new { items = result }));
+        }
+
+        /// <summary>
+        /// NC程序产量分布（饼图数据）
+        /// GET /api/admin/dashboard/program-distribution
+        /// </summary>
+        [HttpGet]
+        [Route("program-distribution")]
+        public IHttpActionResult GetProgramDistribution(DateTime? startDate = null, DateTime? endDate = null, int top = 10)
+        {
+            var result = _dashboardService.GetProgramDistribution(startDate, endDate, top);
+            return Ok(ApiResponse<object>.Success(new { items = result }));
+        }
+
         /// <summary>
         /// 采集服务状态
         /// GET /api/admin/collector/status