feat: 增加服务器信息导入、导出功能

app/src/main/mqtt-manager.js

@@ -164,23 +164,47 @@ class MqttManager {
     return this.servers.get(id) || null;
   }
 
+  getServerConfigSchema() {
+    return {
+      name: (c, e) => c.name ?? e?.name,
+      host: (c, e) => c.host ?? e?.host,
+      port: (c, e) => c.port || e?.port || 1883,
+      protocol: (c, e) => c.protocol || e?.protocol || 'mqtt',
+      clientId: (c, e) => c.clientId || e?.clientId || 'frost_' + Math.random().toString(36).slice(2, 10),
+      username: (c, e) => c.username ?? e?.username ?? '',
+      password: (c, e, opts) => c.password ?? (opts.keepExistingPassword ? e?.password : '') ?? '',
+      keepAlive: (c, e) => c.keepAlive || e?.keepAlive || 60,
+      cleanSession: (c) => c.cleanSession !== false,
+      connectTimeout: (c, e) => c.connectTimeout ?? e?.connectTimeout ?? 10000,
+      reconnect: (c) => c.reconnect !== false,
+      reconnectInterval: (c, e) => c.reconnectInterval ?? e?.reconnectInterval ?? 5000,
+    };
+  }
+
+  buildServerFields(config, existing = null, options = {}) {
+    let schema = this.getServerConfigSchema();
+    let fields = {};
+    for (let key of Object.keys(schema)) {
+      fields[key] = schema[key](config, existing, options);
+    }
+    return fields;
+  }
+
+  buildTopic(t) {
+    return {
+      id: t.id || 'topic_' + Date.now() + '_' + Math.random().toString(36).slice(2, 6),
+      topic: t.topic,
+      qos: t.qos ?? 1,
+      subscribed: false,
+    };
+  }
+
   addServer(config) {
 
     let id = 'srv_' + Date.now() + '_' + Math.random().toString(36).slice(2, 6);
     let server = {
       id,
-      name: config.name,
-      host: config.host,
-      port: config.port || 1883,
-      protocol: config.protocol || 'mqtt',
-      clientId: config.clientId || 'frost_' + Math.random().toString(36).slice(2, 10),
-      username: config.username || '',
-      password: config.password || '',
-      keepAlive: config.keepAlive || 60,
-      cleanSession: config.cleanSession !== false,
-      connectTimeout: config.connectTimeout ?? 10000,
-      reconnect: config.reconnect !== false,
-      reconnectInterval: config.reconnectInterval ?? 5000,
+      ...this.buildServerFields(config),
       status: 'disconnected',
       topics: [],
     };
@@ -202,23 +226,7 @@ class MqttManager {
       return null;
     }
 
-    Object.assign(server, {
-      name: config.name,
-      host: config.host,
-      port: config.port || 1883,
-      protocol: config.protocol || 'mqtt',
-      clientId: config.clientId || server.clientId,
-      username: config.username || '',
-      keepAlive: config.keepAlive || 60,
-      cleanSession: config.cleanSession !== false,
-      connectTimeout: config.connectTimeout ?? server.connectTimeout ?? 10000,
-      reconnect: config.reconnect !== false,
-      reconnectInterval: config.reconnectInterval ?? server.reconnectInterval ?? 5000,
-    });
-
-    if (config.password) {
-      server.password = config.password;
-    }
+    Object.assign(server, this.buildServerFields(config, server, { keepExistingPassword: true }));
 
     this.saveData();
 
@@ -235,6 +243,63 @@ class MqttManager {
     this.saveData();
   }
 
+  exportServers() {
+    let schemaKeys = Object.keys(this.getServerConfigSchema());
+    return Array.from(this.servers.values()).map((s) => {
+      let exported = {};
+      for (let key of schemaKeys) {
+        exported[key] = s[key];
+      }
+      exported.topics = (s.topics || []).map((t) => this.buildTopicExport(t));
+      return exported;
+    });
+  }
+
+  buildTopicExport(t) {
+    return {
+      id: t.id,
+      topic: t.topic,
+      qos: t.qos,
+    };
+  }
+
+  importServers(serverList) {
+    if (!Array.isArray(serverList)) {
+      throw new Error('导入格式错误：必须是服务器配置数组');
+    }
+
+    // 断开所有现有连接
+    this.clients.forEach((client, id) => {
+      this.disconnect(id);
+    });
+    this.clients.clear();
+
+    this.servers.clear();
+    this.messages.clear();
+    this.publishHistory.clear();
+
+    serverList.forEach((config) => {
+      if (!config.name || !config.host) {
+        return;
+      }
+
+      let id = 'srv_' + Date.now() + '_' + Math.random().toString(36).slice(2, 6);
+      let server = {
+        id,
+        ...this.buildServerFields(config),
+        status: 'disconnected',
+        topics: (config.topics || []).map((t) => this.buildTopic(t)),
+      };
+
+      this.servers.set(id, server);
+      this.messages.set(id, []);
+      this.publishHistory.set(id, []);
+    });
+
+    this.saveData();
+    return this.getServers();
+  }
+
   // ==================== 连接管理 ====================
 
   connect(id) {