add proxy switch demo

public/proxy/proxy-manager.js

@@ -0,0 +1,87 @@
+// 代理配置管理
+export class ProxyManager {
+    static async setProxy(config) {
+        try {
+            const proxyConfig = {
+                mode: "fixed_servers",
+                rules: {
+                    singleProxy: {
+                        scheme: config.scheme,
+                        host: config.host,
+                        port: config.port
+                    },
+                    bypassList: ["localhost", "127.0.0.1"]
+                }
+            };
+
+            await chrome.proxy.settings.set({
+                value: proxyConfig,
+                scope: 'regular'
+            });
+
+            // 保存当前配置
+            await chrome.storage.local.set({
+                currentProxy: {
+                    ...config,
+                    timestamp: Date.now()
+                }
+            });
+
+            return true;
+        } catch (error) {
+            console.error('Error setting proxy:', error);
+            return false;
+        }
+    }
+
+    static async clearProxy() {
+        try {
+            await chrome.proxy.settings.clear({scope: 'regular'});
+            await chrome.storage.local.remove('currentProxy');
+            return true;
+        } catch (error) {
+            console.error('Error clearing proxy:', error);
+            return false;
+        }
+    }
+
+    static async getProxyStatus() {
+        try {
+            const settings = await chrome.proxy.settings.get({});
+            const currentProxy = await chrome.storage.local.get('currentProxy');
+            return {
+                enabled: settings.value.mode === "fixed_servers",
+                config: currentProxy.currentProxy || null
+            };
+        } catch (error) {
+            console.error('Error getting proxy status:', error);
+            return {
+                enabled: false,
+                config: null
+            };
+        }
+    }
+
+    static async deleteProxy(proxyId) {
+        try {
+            // 获取当前代理配置
+            const result = await chrome.storage.local.get(['proxyConfigs', 'currentProxy']);
+            const configs = result.proxyConfigs || [];
+            const currentProxy = result.currentProxy;
+
+            // 如果要删除的代理正在使用中，先清除代理设置
+            if (currentProxy && currentProxy.id === proxyId) {
+                await clearProxyConfig();
+            }
+
+            // 从配置列表中删除代理
+            const updatedConfigs = configs.filter(config => config.id !== proxyId);
+            await chrome.storage.local.set({ proxyConfigs: updatedConfigs });
+
+            return true;
+        } catch (error) {
+            console.error('Error deleting proxy:', error);
+            return false;
+        }
+    }
+}