Change model dir structure

lib/data/model/server/cpu_2_status.dart

@@ -0,0 +1,47 @@
+import 'package:toolbox/data/model/server/cpu_status.dart';
+
+class Cpu2Status {
+  List<CpuStatus> pre;
+  List<CpuStatus> now;
+  String temp;
+  Cpu2Status(this.pre, this.now, this.temp);
+
+  double usedPercent({int coreIdx = 0}) {
+    if (now.length != pre.length) return 0;
+    final idleDelta = now[coreIdx].idle - pre[coreIdx].idle;
+    final totalDelta = now[coreIdx].total - pre[coreIdx].total;
+    final used = idleDelta / totalDelta;
+    return used.isNaN ? 0 : 100 - used * 100;
+  }
+
+  Cpu2Status update(List<CpuStatus> newStatus, String newTemp) {
+    return Cpu2Status(now, newStatus, newTemp);
+  }
+
+  int get coresCount => now.length;
+
+  int get totalDelta => now[0].total - pre[0].total;
+
+  double get user {
+    if (now.length != pre.length) return 0;
+    final delta = now[0].user - pre[0].user;
+    final used = delta / totalDelta;
+    return used.isNaN ? 0 : used * 100;
+  }
+
+  double get sys {
+    if (now.length != pre.length) return 0;
+    final delta = now[0].sys - pre[0].sys;
+    final used = delta / totalDelta;
+    return used.isNaN ? 0 : used * 100;
+  }
+
+  double get nice {
+    if (now.length != pre.length) return 0;
+    final delta = now[0].nice - pre[0].nice;
+    final used = delta / totalDelta;
+    return used.isNaN ? 0 : used * 100;
+  }
+
+  double get idle => 100 - usedPercent();
+}