import fs from "node:fs";
import path from "node:path";
import { settings } from "./config.js";

const DEFAULT_CLIENT_SETTINGS = {
  homeBypassEnabled: false,
};

function readJson(filePath, fallback) {
  try {
    if (!fs.existsSync(filePath)) return fallback;
    return JSON.parse(fs.readFileSync(filePath, "utf8"));
  } catch {
    return fallback;
  }
}

function writeJson(filePath, value) {
  fs.mkdirSync(path.dirname(filePath), { recursive: true });
  fs.writeFileSync(filePath, JSON.stringify(value, null, 2), "utf8");
}

export function normalizeClientSettings(input = {}) {
  return {
    homeBypassEnabled: Boolean(input.homeBypassEnabled),
  };
}

export function readClientSettings() {
  return normalizeClientSettings({
    ...DEFAULT_CLIENT_SETTINGS,
    ...readJson(settings.clientSettingsPath, {}),
  });
}

export function writeClientSettings(input) {
  const normalized = normalizeClientSettings({
    ...readClientSettings(),
    ...(input && typeof input === "object" ? input : {}),
  });
  writeJson(settings.clientSettingsPath, normalized);
  return normalized;
}