remove useless function

lib/data/model/server/cpu_status.dart

@@ -33,28 +33,6 @@ class CpuStatus {
     this.irq,
     this.softirq,
   );
-  CpuStatus.fromJson(Map<String, dynamic> json) {
-    id = json["id"];
-    user = json["user"]?.toInt();
-    sys = json["sys"]?.toInt();
-    nice = json["nice"]?.toInt();
-    idle = json["idle"]?.toInt();
-    iowait = json["iowait"]?.toInt();
-    irq = json["irq"]?.toInt();
-    softirq = json["softirq"]?.toInt();
-  }
-  Map<String, dynamic> toJson() {
-    final Map<String, dynamic> data = <String, dynamic>{};
-    data["id"] = id;
-    data["user"] = user;
-    data["sys"] = sys;
-    data["nice"] = nice;
-    data["idle"] = idle;
-    data["iowait"] = iowait;
-    data["irq"] = irq;
-    data["softirq"] = softirq;
-    return data;
-  }
 
   int get total => user + sys + nice + idle + iowait + irq + softirq;
 }

lib/data/model/server/disk_info.dart

@@ -25,23 +25,4 @@ class DiskInfo {
     this.size,
     this.avail,
   );
-
-  DiskInfo.fromJson(Map<String, dynamic> json) {
-    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>{};
-    data["mountPath"] = mountPath;
-    data["mountLocation"] = mountLocation;
-    data["usedPercent"] = usedPercent;
-    data["used"] = used;
-    data["size"] = size;
-    data["avail"] = avail;
-    return data;
-  }
 }

lib/data/model/server/server_private_info.dart

@@ -13,25 +13,27 @@ class ServerPrivateInfo {
 } 
 */
 
-  String? name;
+  late String name;
-  String? ip;
+  late String ip;
-  int? port;
+  late int port;
-  String? user;
+  late String user;
-  Object? authorization;
+  late Object authorization;
+  String? pubKeyId;
 
-  ServerPrivateInfo({
+  ServerPrivateInfo(
-    this.name,
+      {required this.name,
-    this.ip,
+      required this.ip,
-    this.port,
+      required this.port,
-    this.user,
+      required this.user,
-    this.authorization,
+      required this.authorization,
-  });
+      this.pubKeyId});
   ServerPrivateInfo.fromJson(Map<String, dynamic> json) {
-    name = json["name"]?.toString();
+    name = json["name"].toString();
-    ip = json["ip"]?.toString();
+    ip = json["ip"].toString();
-    port = json["port"]?.toInt();
+    port = json["port"].toInt();
-    user = json["user"]?.toString();
+    user = json["user"].toString();
     authorization = json["authorization"];
+    pubKeyId = json["pubKeyId"]?.toString();
   }
   Map<String, dynamic> toJson() {
     final Map<String, dynamic> data = <String, dynamic>{};
@@ -40,11 +42,12 @@ class ServerPrivateInfo {
     data["port"] = port;
     data["user"] = user;
     data["authorization"] = authorization;
+    data["pubKeyId"] = pubKeyId;
     return data;
   }
 }
 
-List<ServerPrivateInfo>? getServerInfoList(dynamic data) {
+List<ServerPrivateInfo> getServerInfoList(dynamic data) {
   List<ServerPrivateInfo> ss = [];
   if (data is String) {
     data = json.decode(data);

lib/data/provider/server.dart

@@ -50,9 +50,9 @@ class ServerProvider extends BusyProvider {
 
   SSHClient genClient(ServerPrivateInfo spi) {
     return SSHClient(
-        host: spi.ip!,
+        host: spi.ip,
-        port: spi.port!,
+        port: spi.port,
-        username: spi.user!,
+        username: spi.user,
         passwordOrKey: spi.authorization);
   }
 

lib/data/res/icon/common.dart

@@ -0,0 +1,3 @@
+import 'package:flutter/widgets.dart';
+
+final appIcon = Image.asset('assets/app_icon.png');

lib/data/res/url.dart

@@ -1,3 +1,5 @@
 const backendUrl = 'https://v2.custed.lolli.tech';
 const baseUrl = backendUrl + '/res/toolbox';
 const joinQQGroupUrl = 'https://jq.qq.com/?_wv=1027&k=G0hUmPAq';
+const myGithub = 'https://github.com/LollipopKit';
+const rainSunMeGithub = 'https://github.com/RainSunMe';

lib/data/store/server.dart

@@ -12,7 +12,7 @@ class ServerStore extends PersistentStore {
 
   List<ServerPrivateInfo> fetch() {
     return getServerInfoList(
-        json.decode(box.get('servers', defaultValue: '[]')!))!;
+        json.decode(box.get('servers', defaultValue: '[]')!));
   }
 
   void delete(ServerPrivateInfo s) {

lib/view/page/server/tab.dart

@@ -48,11 +48,19 @@ class _ServerPageState extends State<ServerPage>
   Widget build(BuildContext context) {
     super.build(context);
     return Scaffold(
-      body: SingleChildScrollView(
+      body: Consumer<ServerProvider>(builder: (_, pro, __) {
+        if (pro.servers.isEmpty) {
+          return const Center(
+            child: Text(
+              'There is not server.\nClick the fab to add one.',
+              textAlign: TextAlign.center,
+            ),
+          );
+        }
+        return SingleChildScrollView(
           padding: const EdgeInsets.symmetric(horizontal: 7),
           child: AnimationLimiter(
-            child: Consumer<ServerProvider>(builder: (_, pro, __) {
+              child: Column(
-          return Column(
                   children: AnimationConfiguration.toStaggeredList(
             duration: const Duration(milliseconds: 377),
             childAnimationBuilder: (widget) => SlideAnimation(
@@ -65,9 +73,9 @@ class _ServerPageState extends State<ServerPage>
               const SizedBox(height: 13),
               ...pro.servers.map((e) => _buildEachServerCard(e))
             ],
-          ));
+          ))),
-        })),
+        );
-      ),
+      }),
       floatingActionButton: FloatingActionButton(
         onPressed: () =>
             AppRoute(const ServerEditPage(), 'Add server info page')