🦄 refactor: Refactoring using hono

src/config.ts

@@ -0,0 +1,50 @@
+import dotenv from "dotenv";
+
+// 环境变量
+dotenv.config();
+
+export type Config = {
+  PORT: number;
+  DISALLOW_ROBOT: boolean;
+  CACHE_TTL: number;
+  REQUEST_TIMEOUT: number;
+  ALLOWED_DOMAIN: string;
+  USE_LOG_FILE: boolean;
+  RSS_MODE: boolean;
+};
+
+// 验证并提取环境变量
+const getEnvVariable = (key: string): string | undefined => {
+  const value = process.env[key];
+  if (value === undefined) {
+    return null;
+  }
+  return value;
+};
+
+// 将环境变量转换为数值
+const getNumericEnvVariable = (key: string, defaultValue: number): number => {
+  const value = getEnvVariable(key) ?? String(defaultValue);
+  const parsedValue = parseInt(value, 10);
+  if (isNaN(parsedValue)) {
+    return defaultValue
+  }
+  return parsedValue;
+};
+
+// 将环境变量转换为布尔值
+const getBooleanEnvVariable = (key: string, defaultValue: boolean): boolean => {
+  const value = getEnvVariable(key) ?? String(defaultValue);
+  return value.toLowerCase() === "true";
+};
+
+// 创建配置对象
+export const config: Config = {
+  PORT: getNumericEnvVariable("PORT", 6688),
+  DISALLOW_ROBOT: getBooleanEnvVariable("DISALLOW_ROBOT", true),
+  CACHE_TTL: getNumericEnvVariable("CACHE_TTL", 3600),
+  REQUEST_TIMEOUT: getNumericEnvVariable("CACHE_TTL", 6000),
+  ALLOWED_DOMAIN: getEnvVariable("ALLOWED_DOMAIN") || "*",
+  USE_LOG_FILE: getBooleanEnvVariable("USE_LOG_FILE", true),
+  RSS_MODE: getBooleanEnvVariable("RSS_MODE", false),
+};