chore：AI大修改

backend/src/utils/config.ts

@@ -1,4 +1,8 @@
 import fs from "node:fs";
+
+/**
+ * 应用配置接口
+ */
 export interface IConfig {
   mirror: {
     bmclapi: boolean;
@@ -9,32 +13,65 @@ export interface IConfig {
     dexpub: boolean;
     mixins: boolean;
   };
-  oaf: boolean
+  oaf: boolean;
 }
 
+/**
+ * 默认配置
+ */
+const DEFAULT_CONFIG: IConfig = {
+  mirror: {
+    bmclapi: true,
+    mcimirror: true,
+  },
+  filter: {
+    hashes: true,
+    dexpub: false,
+    mixins: true,
+  },
+  oaf: true
+};
+
+/**
+ * 配置文件路径
+ */
+const CONFIG_PATH = "./config.json";
+
+/**
+ * 配置管理器
+ */
 export class Config {
-  private readonly default_config: IConfig = {
-    mirror: {
-      bmclapi: true,
-      mcimirror: true,
-    },
-    filter: {
-      hashes: true,
-      dexpub: false,
-      mixins: true,
-    },
-    oaf:true
-  };
-  config(): IConfig {
-    if (!fs.existsSync("./config.json")) {
-      fs.writeFileSync("./config.json", JSON.stringify(this.default_config));
-      return this.default_config;
+  /**
+   * 获取配置
+   * @returns 配置对象
+   */
+  public static getConfig(): IConfig {
+    if (!fs.existsSync(CONFIG_PATH)) {
+      fs.writeFileSync(CONFIG_PATH, JSON.stringify(DEFAULT_CONFIG, null, 2));
+      return DEFAULT_CONFIG;
+    }
+    
+    try {
+      const content = fs.readFileSync(CONFIG_PATH, "utf-8");
+      return JSON.parse(content);
+    } catch (err) {
+      console.error("Failed to read config file, using defaults", err);
+      return DEFAULT_CONFIG;
     }
-    return JSON.parse(fs.readFileSync("./config.json", "utf-8"));
   }
-  static write_config(config: IConfig) {
-    fs.writeFileSync("./config.json", JSON.stringify(config));
+
+  /**
+   * 写入配置
+   * @param config 配置对象
+   */
+  public static writeConfig(config: IConfig): void {
+    try {
+      fs.writeFileSync(CONFIG_PATH, JSON.stringify(config, null, 2));
+    } catch (err) {
+      console.error("Failed to write config file", err);
+    }
   }
 }
 
-export default new Config().config();
+// 默认导出配置实例
+export default Config.getConfig();