const MEDIA_PROXY_PATH = "/api/media/proxy";

function configuredMinioPublicUrl(): string {
  return (
    process.env.NEXT_PUBLIC_MINIO_PUBLIC_URL ||
    process.env.MINIO_PUBLIC_URL ||
    ""
  ).replace(/\/$/, "");
}

export function isExternalMediaUrl(value: string): boolean {
  return /^https?:\/\//i.test(value);
}

export function isMinioUrl(value: string): boolean {
  const publicUrl = configuredMinioPublicUrl();
  return Boolean(publicUrl && value.startsWith(`${publicUrl}/`));
}

export function mediaUrl(value?: string | null): string {
  const url = String(value || "").trim();
  if (!url) return "";
  if (/^(data:|blob:|#|mailto:|tel:)/i.test(url)) return url;
  if (/^file:/i.test(url)) return "";
  if (!isExternalMediaUrl(url)) return url;
  if (isMinioUrl(url)) return url;
  return `${MEDIA_PROXY_PATH}?src=${encodeURIComponent(url)}`;
}

export function mediaUrls(values: string[]): string[] {
  return values.map(mediaUrl).filter(Boolean);
}