Finish server detail page

lib/data/model/cpu_2_status.dart

@@ -6,6 +6,7 @@ class Cpu2Status {
   Cpu2Status(this.pre, this.now);
 
   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;
@@ -15,4 +16,31 @@ class Cpu2Status {
   Cpu2Status update(List<CpuStatus> newStatus) {
     return Cpu2Status(now, newStatus);
   }
+
+  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();
 }

lib/data/model/disk_info.dart

@@ -4,34 +4,35 @@ class DiskInfo {
   "mountPath": "",
   "mountLocation": "",
   "usedPercent": 0,
-  "used": "",=
+  "used": "",
   "size": "",
   "avail": ""
 } 
 */
 
-  String? mountPath;
-  String? mountLocation;
-  double? usedPercent;
-  String? used;
-  String? size;
-  String? avail;
+  late String mountPath;
+  late String mountLocation;
+  late int usedPercent;
+  late String used;
+  late String size;
+  late String avail;
 
-  DiskInfo({
+  DiskInfo(
     this.mountPath,
     this.mountLocation,
     this.usedPercent,
     this.used,
     this.size,
     this.avail,
-  });
+  );
+
   DiskInfo.fromJson(Map<String, dynamic> json) {
-    mountPath = json["mountPath"]?.toString();
-    mountLocation = json["mountLocation"]?.toString();
-    usedPercent = double.parse(json["usedPercent"]);
-    used = json["used"]?.toString();
-    size = json["size"]?.toString();
-    avail = json["avail"]?.toString();
+    mountPath = json["mountPath"].toString();
+    mountLocation = json["mountLocation"].toString();
+    usedPercent = int.parse(json["usedPercent"]);
+    used = json["used"].toString();
+    size = json["size"].toString();
+    avail = json["avail"].toString();
   }
   Map<String, dynamic> toJson() {
     final Map<String, dynamic> data = <String, dynamic>{};

lib/data/model/linux_icon.dart

@@ -0,0 +1,14 @@
+class LinuxIcons {
+  List<String> db;
+
+  LinuxIcons(this.db);
+
+  String? search(String sysVer) {
+    for (var item in db) {
+      if (sysVer.contains(item)) {
+        return 'assets/linux/$item.png';
+      }
+    }
+    return null;
+  }
+}

lib/data/model/server_status.dart

@@ -29,10 +29,10 @@ class ServerStatus {
 */
 
   late Cpu2Status cpu2Status;
-  late List<int?> memList;
+  late List<int> memList;
   late String sysVer;
   late String uptime;
-  late List<DiskInfo?> disk;
+  late List<DiskInfo> disk;
   late TcpStatus tcp;
 
   ServerStatus(this.cpu2Status, this.memList, this.sysVer, this.uptime,

lib/data/model/tcp_status.dart

@@ -11,23 +11,25 @@ class TcpStatus {
 } 
 */
 
-  int? maxConn;
-  int? active;
-  int? passive;
-  int? fail;
+  late int maxConn;
+  late int active;
+  late int passive;
+  late int fail;
 
-  TcpStatus({
+  TcpStatus(
     this.maxConn,
     this.active,
     this.passive,
     this.fail,
-  });
+  );
+
   TcpStatus.fromJson(Map<String, dynamic> json) {
-    maxConn = json["maxConn"]?.toInt();
-    active = json["active"]?.toInt();
-    passive = json["passive"]?.toInt();
-    fail = json["fail"]?.toInt();
+    maxConn = json["maxConn"].toInt();
+    active = json["active"].toInt();
+    passive = json["passive"].toInt();
+    fail = json["fail"].toInt();
   }
+  
   Map<String, dynamic> toJson() {
     final Map<String, dynamic> data = <String, dynamic>{};
     data["maxConn"] = maxConn;