const iter = (obj, key, lines) => {
  if (obj === null) {
    lines.push(`${key}=null;`)
    return
  }
  if (Array.isArray(obj)) {
    lines.push(`${key}=[];`)
    obj.forEach((v, idx) => {
      iter(v, `${key}[${idx}]`, lines);
    });
    return
  }
  if (typeof obj === "object") {
    lines.push(`${key}={};`)
    for (const [k,v] of Object.entries(obj)) {
      iter(v, `${key}.${k}`, lines);
    }
    return
  }
  if (typeof obj === "string") {
    lines.push(`${key}=${JSON.stringify(obj)};`);
    return
  }

  lines.push(`${key}=${obj};`)
}

export const gronify = (obj) => {
  const lines = []

  iter(obj, "json", lines)

  return lines.join('\n');

}