// 逐字对比两份抓包里指定下标的消息，打印差异位置。
import { readFileSync } from "node:fs";
const [a, b, idx] = process.argv.slice(2);
const get = (file) => JSON.parse(JSON.parse(readFileSync(file, "utf8")).body).messages[Number(idx)].content;
const left = get(a);
const right = get(b);
console.log("ST " + left.length + " 字 / WA " + right.length + " 字");
let i = 0;
while (i < Math.min(left.length, right.length) && left[i] === right[i]) i++;
console.log("首个差异在 " + i);
console.log("ST: " + JSON.stringify(left.slice(Math.max(0, i - 40), i + 60)));
console.log("WA: " + JSON.stringify(right.slice(Math.max(0, i - 40), i + 60)));