import { config } from "dotenv";
import yargs from "yargs";
import { hideBin } from "yargs/helpers";

config();

// 服务器配置接口
export interface ServerConfig {
  port: number;
  configSources: {
    port: "cli" | "env" | "default";
  };
  // 可以添加其他配置项
}

// 获取服务器配置
export function getServerConfig(isStdioMode: boolean = false): ServerConfig {
  // 解析命令行参数
  const argv = yargs(hideBin(process.argv))
    .options({
      port: {
        type: "number",
        description: "服务器运行端口",
        default: 3000,
      },
    })
    .help()
    .version("1.0.0")
    .parseSync();

  const config: ServerConfig = {
    port: 3000,
    configSources: {
      port: "default",
    },
  };

  // 处理端口配置
  if (argv.port) {
    config.port = argv.port;
    config.configSources.port = "cli";
  } else if (process.env.PORT) {
    config.port = parseInt(process.env.PORT, 10);
    config.configSources.port = "env";
  }

  // 打印配置信息（非stdio模式下）
  if (!isStdioMode) {
    console.log("\n配置信息:");
    console.log(`- 端口: ${config.port} (来源: ${config.configSources.port})`);
    console.log(); // 空行，增加可读性
  }

  return config;
}