feat: 新增WebSocket客户端和配置加载器以支持网络通信

internal/network/client.go

@@ -0,0 +1,133 @@
+package network
+
+import (
+	"encoding/json"
+	"log"
+	"sync"
+	"time"
+
+	"github.com/gorilla/websocket"
+)
+
+type ClientConfig struct {
+	ServerURL    string
+	SendInterval time.Duration
+	BufferSize   int
+}
+
+type WSClient struct {
+	config      ClientConfig
+	conn        *websocket.Conn
+	sendChan    chan Packet
+	mu          sync.Mutex
+	isConnected bool
+	stopChan    chan struct{}
+}
+
+func NewWSClient(cfg ClientConfig) *WSClient {
+	if cfg.BufferSize == 0 {
+		cfg.BufferSize = 100
+	}
+	return &WSClient{
+		config:   cfg,
+		sendChan: make(chan Packet, cfg.BufferSize),
+		stopChan: make(chan struct{}),
+	}
+}
+
+func (c *WSClient) Start() {
+	go c.connectionLoop()
+	go c.sendLoop()
+}
+
+func (c *WSClient) SendQueue(packet Packet) {
+	select {
+	case c.sendChan <- packet:
+	default:
+		log.Printf("[网络] 发送队列已满，丢弃消息: %s", packet.Type)
+	}
+}
+
+func (c *WSClient) Stop() {
+	close(c.stopChan)
+	if c.conn != nil {
+		c.conn.Close()
+	}
+}
+
+func (c *WSClient) sendLoop() {
+	for {
+		select {
+		case <-c.stopChan:
+			return
+		case packet := <-c.sendChan:
+			c.sendRaw(packet)
+		}
+	}
+}
+
+func (c *WSClient) sendRaw(packet Packet) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	if !c.isConnected || c.conn == nil {
+		log.Printf("[网络] 无连接，无法发送消息: %s", packet.Type)
+		return
+	}
+
+	c.conn.SetWriteDeadline(time.Now().Add(5 * time.Second))
+
+	payload, _ := json.Marshal(packet)
+	if err := c.conn.WriteMessage(websocket.TextMessage, payload); err != nil {
+		log.Printf("[网络] 发送消息失败: %v", err)
+		c.isConnected = false
+	}
+}
+
+func (c *WSClient) connectionLoop() {
+	for {
+		select {
+		case <-c.stopChan:
+			return
+		default:
+			if !c.isConnected {
+				if err := c.connect(); err != nil {
+					log.Printf("[网络] 连接 %s 失败: %v. 5秒后重试...", c.config.ServerURL, err)
+					time.Sleep(5 * time.Second)
+					continue
+				}
+			}
+
+			_, _, err := c.conn.ReadMessage()
+			if err != nil {
+				log.Printf("[网络] 连接断开: %v", err)
+				c.closeConn()
+			}
+
+			// TODO: 处理服务器消息
+		}
+	}
+}
+
+func (c *WSClient) closeConn() {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	if c.conn != nil {
+		c.conn.Close()
+		c.conn = nil
+	}
+	c.isConnected = false
+}
+
+func (c *WSClient) connect() any {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	conn, _, err := websocket.DefaultDialer.Dial(c.config.ServerURL, nil)
+	if err != nil {
+		return err
+	}
+	c.conn = conn
+	c.isConnected = true
+	log.Printf("[网络] 成功连接到服务器: %s", c.config.ServerURL)
+	return nil
+}

internal/network/loader.go

@@ -0,0 +1,49 @@
+package network
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/wuko233/sysmonitord/internal/config"
+)
+
+type ConfigLoader struct {
+	client *http.Client
+}
+
+func NewConfigLoader() *ConfigLoader {
+	return &ConfigLoader{
+		client: &http.Client{
+			Timeout: 10 * time.Second,
+		},
+	}
+}
+
+func (l *ConfigLoader) LoadConfigs(urls ConfigUrls) (config.OfficialConfig, config.UserConfig, error) {
+	var official config.OfficialConfig
+	var user config.UserConfig
+	// 1. 下载官方配置
+	if err := l.fetchJSON(urls.OfficialConfigUrl, &official); err != nil {
+		return official, user, fmt.Errorf("下载官方配置失败: %v", err)
+	}
+	// 2. 下载用户配置
+	if err := l.fetchJSON(urls.UserConfigUrl, &user); err != nil {
+		return official, user, fmt.Errorf("下载用户配置失败: %v", err)
+	}
+	return official, user, nil
+}
+
+func (l *ConfigLoader) fetchJSON(url string, target interface{}) error {
+	resp, err := l.client.Get(url)
+	if err != nil {
+		return fmt.Errorf("请求失败: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("非200响应: %d", resp.StatusCode)
+	}
+	return json.NewDecoder(resp.Body).Decode(target)
+}

internal/network/types.go

@@ -15,3 +15,8 @@ func NewPactet(msgType string, payload interface{}) Packet {
 		Payload:   payload,
 	}
 }
+
+type ConfigUrls struct {
+	OfficialConfigUrl string
+	UserConfigUrl     string
+}