/*
 * Copyright (C) 2026 Mateusz Gruszczyński @linuxiarz.pl
 * Source-Available Code / Dual-Licensed.
 * 
 * Free for non-commercial and evaluation use under terms of BSL/GPLv3.
 * Commercial or production use requires a valid paid license.
 * See LICENSE file in repository root for details.
 */

export function safeAppUrl(value, fallback = "/") {
  try {
    const url = new URL(String(value || ""), location.origin);
    if (url.origin !== location.origin || !["http:", "https:"].includes(url.protocol)) return fallback;
    return `${url.pathname}${url.search}${url.hash}`;
  } catch {
    return fallback;
  }
}

export function safePublicUrl(value, { allowMailto = true } = {}) {
  const raw = String(value || "").trim();
  if (!raw || raw.startsWith("//")) return "#";
  try {
    const url = new URL(raw, location.origin);
    if (url.protocol === "mailto:" && allowMailto) return url.href;
    if (!["http:", "https:"].includes(url.protocol)) return "#";
    return url.href;
  } catch {
    return "#";
  }
}

export function safeHexColor(value, fallback = "#64748b") {
  return /^#[0-9a-f]{6}$/i.test(String(value || "")) ? String(value) : fallback;
}