fix 优化获取设备状态数据

Src/Dlhis.Basic/Device/Services/Implements/DeviceService.cs

@@ -264,7 +264,7 @@ public class DeviceService : IDeviceService
     /// 获取离线设备
     /// </summary>
     /// <returns></returns>
-    private async Task<List<DeviceEntity>> GetOfflineDevicesCount(List<DeviceEntity> devices)
+    private async Task<List<long>> GetOfflineDevices(List<DeviceEntity> devices)
     {
         var now = DateTime.Now;
 
@@ -281,23 +281,35 @@ public class DeviceService : IDeviceService
             })
             .ToListAsync();
 
-        var onlineDevices = deviceRegistries.Where(x =>
-            {
-                if (x.HeartbeatInterval <= 0) return true;
-                return x.LastHeartbeatTime.AddSeconds(x.HeartbeatInterval) >= now;
-            })
-            .Select(x => new
-            {
-                x.UniqueNo
-            })
-            .ToList();
+        var offlineUniqueNos = deviceRegistries
+            .Where(x => x.HeartbeatInterval > 0 && x.LastHeartbeatTime.AddSeconds(x.HeartbeatInterval) < now)
+            .Select(x => x.UniqueNo);
 
-        var onlineUniqueNos = new List<string>();
-        onlineDevices.ForEach(x => onlineUniqueNos.Add(x.UniqueNo));
+        return devices.Where(x => offlineUniqueNos.Contains(x.UniqueNo)).Select(x => x.Id).ToList();
+    }
 
-        var offUniqueNos = deviceUniqueNos.Except(onlineUniqueNos).ToList();
-        var list = devices.Where(x => offUniqueNos.Contains(x.UniqueNo)).ToList();
-        return list;
+    private async Task<List<long>> GetOnlineDevices(List<DeviceEntity> devices)
+    {
+        var now = DateTime.Now;
+
+        var deviceUniqueNos = devices.Select(x => x.UniqueNo).ToList();
+
+        var deviceRegistries = await _dbContext.Queryable<DeviceRegistryEntity>()
+            .LeftJoin<DeviceEntity>((x, d) => x.DeviceUniqueNo == d.UniqueNo)
+            .Where(x => deviceUniqueNos.Contains(x.DeviceUniqueNo))
+            .Select((x, d) => new
+            {
+                d.UniqueNo,
+                d.HeartbeatInterval,
+                x.LastHeartbeatTime
+            })
+            .ToListAsync();
+
+        var offlineUniqueNos = deviceRegistries
+            .Where(x => x.HeartbeatInterval <= 0 || x.LastHeartbeatTime.AddSeconds(x.HeartbeatInterval) >= now)
+            .Select(x => x.UniqueNo);
+
+        return devices.Where(x => offlineUniqueNos.Contains(x.UniqueNo)).Select(x => x.Id).ToList();
     }
 
 
@@ -314,13 +326,9 @@ public class DeviceService : IDeviceService
             ? await _dbContext.Queryable<DeviceEntity>().Where(x => x.Type == DeviceTypeEnumType.Attendance).ToListAsync()
             : await _dbContext.Queryable<DeviceEntity>().Where(x => x.Type == DeviceTypeEnumType.Door).ToListAsync();
 
-        var offDevices = await GetOfflineDevicesCount(devices);
-        //离线
-        var ids = offDevices.Select(x => x.Id).ToList();
-        if (!isOnline)
-        {
-            ids = devices.Select(x => x.Id).Except(ids).ToList();
-        }
+        var ids = isOnline
+            ? await GetOnlineDevices(devices)
+            : await GetOfflineDevices(devices);
 
         return await _dbContext.Queryable<DeviceEntity>()
             .LeftJoin<DeviceTemplateEntity>((d, dt) => d.TemplateCode == dt.Code)