// Compact JSON layout for the card files: anything that fits on one line stays on one line.

const inline = (v) => {
  if (Array.isArray(v)) return "[" + v.map(inline).join(", ") + "]";
  if (v && typeof v === "object") return "{ " + Object.entries(v).map(([k, x]) => JSON.stringify(k) + ": " + inline(x)).join(", ") + " }";
  return JSON.stringify(v);
};

export function format(v, indent = "") {
  const flat = inline(v);
  if (flat.length + indent.length <= 118 || typeof v !== "object" || v === null) return flat;
  const next = indent + "  ";
  if (Array.isArray(v)) return "[\n" + v.map((x) => next + format(x, next)).join(",\n") + "\n" + indent + "]";
  return "{\n" + Object.entries(v).map(([k, x]) => next + JSON.stringify(k) + ": " + format(x, next)).join(",\n") + "\n" + indent + "}";
}