refactors (#539)

lib/data/model/app/backup.dart

@@ -7,8 +7,8 @@ import 'package:logging/logging.dart';
 import 'package:server_box/data/model/server/private_key_info.dart';
 import 'package:server_box/data/model/server/server_private_info.dart';
 import 'package:server_box/data/model/server/snippet.dart';
+import 'package:server_box/data/provider/base.dart';
 import 'package:server_box/data/res/misc.dart';
-import 'package:server_box/data/res/provider.dart';
 import 'package:server_box/data/res/rebuild.dart';
 import 'package:server_box/data/res/store.dart';
 
@@ -23,7 +23,7 @@ class Backup {
   // backup format version
   final int version;
   final String date;
-  final List<ServerPrivateInfo> spis;
+  final List<Spi> spis;
   final List<Snippet> snippets;
   final List<PrivateKeyInfo> keys;
   final Map<String, dynamic> container;
@@ -177,7 +177,7 @@ class Backup {
       }
     }
 
-    Pros.reload();
+    Provider.reload();
     RNodes.app.notify();
 
     _logger.info('Restore success');

lib/data/model/app/backup.g.dart

@@ -10,7 +10,7 @@ Backup _$BackupFromJson(Map<String, dynamic> json) => Backup(
       version: (json['version'] as num).toInt(),
       date: json['date'] as String,
       spis: (json['spis'] as List<dynamic>)
-          .map((e) => ServerPrivateInfo.fromJson(e as Map<String, dynamic>))
+          .map((e) => Spi.fromJson(e as Map<String, dynamic>))
           .toList(),
       snippets: (json['snippets'] as List<dynamic>)
           .map((e) => Snippet.fromJson(e as Map<String, dynamic>))

lib/data/model/server/server.dart

@@ -15,7 +15,7 @@ import 'package:server_box/data/model/server/system.dart';
 import 'package:server_box/data/model/server/temp.dart';
 
 class Server implements TagPickable {
-  ServerPrivateInfo spi;
+  Spi spi;
   ServerStatus status;
   SSHClient? client;
   ServerConn conn;

lib/data/model/server/server_private_info.dart

@@ -1,11 +1,12 @@
 import 'dart:convert';
 
+import 'package:fl_lib/fl_lib.dart';
 import 'package:hive_flutter/hive_flutter.dart';
 import 'package:json_annotation/json_annotation.dart';
 import 'package:server_box/data/model/server/custom.dart';
 import 'package:server_box/data/model/server/server.dart';
 import 'package:server_box/data/model/server/wol_cfg.dart';
-import 'package:server_box/data/res/provider.dart';
+import 'package:server_box/data/provider/server.dart';
 
 import 'package:server_box/data/model/app/error.dart';
 
@@ -13,13 +14,13 @@ part 'server_private_info.g.dart';
 
 /// In the first version, it's called `ServerPrivateInfo` which was designed to
 /// store the private information of a server.
-/// 
+///
 /// Some params named as `spi` in the codebase which is the abbreviation of `ServerPrivateInfo`.
 ///
-/// Nowaday, more fields are added to this class, but the name is still the same.
+/// Nowaday, more fields are added to this class, and it's renamed to `Spi`.
 @JsonSerializable()
 @HiveType(typeId: 3)
-class ServerPrivateInfo {
+class Spi {
   @HiveField(0)
   final String name;
   @HiveField(1)
@@ -58,7 +59,7 @@ class ServerPrivateInfo {
 
   final String id;
 
-  const ServerPrivateInfo({
+  const Spi({
     required this.name,
     required this.ip,
     required this.port,
@@ -74,17 +75,22 @@ class ServerPrivateInfo {
     this.envs,
   }) : id = '$user@$ip:$port';
 
-  factory ServerPrivateInfo.fromJson(Map<String, dynamic> json) =>
-      _$ServerPrivateInfoFromJson(json);
+  factory Spi.fromJson(Map<String, dynamic> json) =>
+      _$SpiFromJson(json);
 
-  Map<String, dynamic> toJson() => _$ServerPrivateInfoToJson(this);
+  Map<String, dynamic> toJson() => _$SpiToJson(this);
 
+  @override
+  String toString() => id;
+}
+
+extension Spix on Spi {
   String toJsonString() => json.encode(toJson());
 
-  Server? get server => Pros.server.pick(spi: this);
-  Server? get jumpServer => Pros.server.pick(id: jumpId);
+  VNode<Server>? get server => ServerProvider.pick(spi: this);
+  VNode<Server>? get jumpServer => ServerProvider.pick(id: jumpId);
 
-  bool shouldReconnect(ServerPrivateInfo old) {
+  bool shouldReconnect(Spi old) {
     return id != old.id ||
         pwd != old.pwd ||
         keyId != old.keyId ||
@@ -113,12 +119,7 @@ class ServerPrivateInfo {
     return (ip_, port_);
   }
 
-  @override
-  String toString() {
-    return id;
-  }
-
-  static const example = ServerPrivateInfo(
+  static const example = Spi(
     name: 'name',
     ip: 'ip',
     port: 22,

lib/data/model/server/server_private_info.g.dart

@@ -6,17 +6,17 @@ part of 'server_private_info.dart';
 // TypeAdapterGenerator
 // **************************************************************************
 
-class ServerPrivateInfoAdapter extends TypeAdapter<ServerPrivateInfo> {
+class SpiAdapter extends TypeAdapter<Spi> {
   @override
   final int typeId = 3;
 
   @override
-  ServerPrivateInfo read(BinaryReader reader) {
+  Spi read(BinaryReader reader) {
     final numOfFields = reader.readByte();
     final fields = <int, dynamic>{
       for (int i = 0; i < numOfFields; i++) reader.readByte(): reader.read(),
     };
-    return ServerPrivateInfo(
+    return Spi(
       name: fields[0] as String,
       ip: fields[1] as String,
       port: fields[2] as int,
@@ -34,7 +34,7 @@ class ServerPrivateInfoAdapter extends TypeAdapter<ServerPrivateInfo> {
   }
 
   @override
-  void write(BinaryWriter writer, ServerPrivateInfo obj) {
+  void write(BinaryWriter writer, Spi obj) {
     writer
       ..writeByte(13)
       ..writeByte(0)
@@ -71,7 +71,7 @@ class ServerPrivateInfoAdapter extends TypeAdapter<ServerPrivateInfo> {
   @override
   bool operator ==(Object other) =>
       identical(this, other) ||
-      other is ServerPrivateInfoAdapter &&
+      other is SpiAdapter &&
           runtimeType == other.runtimeType &&
           typeId == other.typeId;
 }
@@ -80,8 +80,7 @@ class ServerPrivateInfoAdapter extends TypeAdapter<ServerPrivateInfo> {
 // JsonSerializableGenerator
 // **************************************************************************
 
-ServerPrivateInfo _$ServerPrivateInfoFromJson(Map<String, dynamic> json) =>
-    ServerPrivateInfo(
+Spi _$SpiFromJson(Map<String, dynamic> json) => Spi(
       name: json['name'] as String,
       ip: json['ip'] as String,
       port: (json['port'] as num).toInt(),
@@ -103,8 +102,7 @@ ServerPrivateInfo _$ServerPrivateInfoFromJson(Map<String, dynamic> json) =>
       ),
     );
 
-Map<String, dynamic> _$ServerPrivateInfoToJson(ServerPrivateInfo instance) =>
-    <String, dynamic>{
+Map<String, dynamic> _$SpiToJson(Spi instance) => <String, dynamic>{
       'name': instance.name,
       'ip': instance.ip,
       'port': instance.port,

lib/data/model/server/snippet.dart

@@ -48,7 +48,7 @@ class Snippet implements TagPickable {
 
   static final fmtFinder = RegExp(r'\$\{[^{}]+\}');
 
-  String fmtWithSpi(ServerPrivateInfo spi) {
+  String fmtWithSpi(Spi spi) {
     return script.replaceAllMapped(
       fmtFinder,
       (match) {
@@ -63,7 +63,7 @@ class Snippet implements TagPickable {
 
   Future<void> runInTerm(
     Terminal terminal,
-    ServerPrivateInfo spi, {
+    Spi spi, {
     bool autoEnter = false,
   }) async {
     final argsFmted = fmtWithSpi(spi);
@@ -159,12 +159,12 @@ class Snippet implements TagPickable {
   }
 
   static final fmtArgs = {
-    r'${host}': (ServerPrivateInfo spi) => spi.ip,
-    r'${port}': (ServerPrivateInfo spi) => spi.port.toString(),
-    r'${user}': (ServerPrivateInfo spi) => spi.user,
-    r'${pwd}': (ServerPrivateInfo spi) => spi.pwd ?? '',
-    r'${id}': (ServerPrivateInfo spi) => spi.id,
-    r'${name}': (ServerPrivateInfo spi) => spi.name,
+    r'${host}': (Spi spi) => spi.ip,
+    r'${port}': (Spi spi) => spi.port.toString(),
+    r'${user}': (Spi spi) => spi.user,
+    r'${pwd}': (Spi spi) => spi.pwd ?? '',
+    r'${id}': (Spi spi) => spi.id,
+    r'${name}': (Spi spi) => spi.name,
   };
 
   /// r'${ctrl+ad}' -> TerminalKey.control, a, d

lib/data/model/sftp/req.dart

@@ -1,12 +1,12 @@
 part of 'worker.dart';
 
 class SftpReq {
-  final ServerPrivateInfo spi;
+  final Spi spi;
   final String remotePath;
   final String localPath;
   final SftpReqType type;
   String? privateKey;
-  ServerPrivateInfo? jumpSpi;
+  Spi? jumpSpi;
   String? jumpPrivateKey;
 
   SftpReq(