"use strict";

const fs = require("fs");
const { deobfuscate } = require("../lib/obfuscate");

function decode(text) {
  return text.replace(/\[OBF\][A-Za-z0-9+/=]+/g, (match) => {
    return deobfuscate(match);
  });
}

function decodeStdin() {
  const chunks = [];
  process.stdin.setEncoding("utf-8");
  process.stdin.on("data", (chunk) => chunks.push(chunk));
  process.stdin.on("end", () => {
    process.stdout.write(decode(chunks.join("")));
  });
}

function decodeFile(filePath) {
  const content = fs.readFileSync(filePath, "utf-8");
  process.stdout.write(decode(content));
}

if (process.argv.includes("--stdin")) {
  decodeStdin();
} else if (process.argv[2]) {
  decodeFile(process.argv[2]);
} else {
  console.log("用法:");
  console.log("  node tools/decode-log.js <日志文件>    解码日志文件");
  console.log("  node tools/decode-log.js --stdin       解码标准输入");
  console.log("");
  console.log("密钥: JMS_LOG_KEY 环境变量 (未设置时使用默认值)");
}