#!/usr/bin/env node

const fs = require("fs");
const path = require("path");

const iniFile = process.argv[2];

if (!iniFile) {
  console.error("Usage: ini-to-json.js file.ini");
  process.exit(1);
}

const system = path.basename(iniFile, path.extname(iniFile));

const lines = fs.readFileSync(iniFile, "utf8").split(/\r?\n/);

const result = {
  [system]: {}
};

let section = null;

for (const line of lines) {
  const trimmed = line.trim();

  if (!trimmed || trimmed.startsWith(";") || trimmed.startsWith("#")) {
    continue;
  }

  const sectionMatch = trimmed.match(/^\[(.+)\]$/);

  if (sectionMatch) {
    section = sectionMatch[1];
    result[system][section] ??= {};
    continue;
  }

  if (!section) {
    continue;
  }

  const eq = trimmed.indexOf("=");

  if (eq === -1) {
    continue;
  }

  const key = trimmed.slice(0, eq).trim();
  const value = trimmed.slice(eq + 1).trim();

  result[system][section][key] = value;
}

console.log(JSON.stringify(result, null, 2));