save-result

#!/usr/bin/env node

const path = require("path");
const {
  promises: { writeFile },
} = require("fs");

const readStdIn = async () => {
  const chunks = [];
  for await (const chunk of process.stdin) {
    chunks.push(chunk);
  }
  return Buffer.concat(chunks).toString("utf8");
};

const stripOrigin = (url) => url.replace(new URL(url).origin, "");

const snapshotFileName = (url, name) => {
  const pathSlug = stripOrigin(url)
    .replace(/^\//, "") // "/path" -> "path"
    .replace(/\/$/, "") // "path/" -> "path"
    .replaceAll(/[^a-zA-Z0-9]+/g, "-");

  return `${name ? name : pathSlug}.json`;
};

(async () => {
  const [, , snapshotsPath = "", url, name] = process.argv;

  const psiResult = {
    name: name ? name : undefined,
    ...JSON.parse(await readStdIn()),
  };

  const fileName = snapshotFileName(url, name);
  const filePath = path.resolve(__dirname, snapshotsPath, fileName);
  await writeFile(filePath, JSON.stringify(psiResult, null, 2), "utf-8");
})();