import path from "../../../shared/lib/isomorphic/path";
import * as Log from "../../../build/output/log";
function isStringOrURL(icon) {
    return typeof icon === "string" || icon instanceof URL;
}
function createLocalMetadataBase() {
    return new URL(`http://localhost:${process.env.PORT || 3000}`);
}
// For deployment url for metadata routes, prefer to use the deployment url if possible
// as these routes are unique to the deployments url.
export function getSocialImageFallbackMetadataBase(metadataBase) {
    const isMetadataBaseMissing = !metadataBase;
    const defaultMetadataBase = createLocalMetadataBase();
    const deploymentUrl = process.env.VERCEL_URL && new URL(`https://${process.env.VERCEL_URL}`);
    let fallbackMetadata;
    if (process.env.NODE_ENV === "development") {
        fallbackMetadata = defaultMetadataBase;
    } else {
        fallbackMetadata = process.env.NODE_ENV === "production" && deploymentUrl && process.env.VERCEL_ENV === "preview" ? deploymentUrl : metadataBase || deploymentUrl || defaultMetadataBase;
    }
    if (isMetadataBaseMissing) {
        Log.warnOnce("");
        Log.warnOnce(`metadata.metadataBase is not set for resolving social open graph or twitter images, using "${fallbackMetadata.origin}". See https://nextjs.org/docs/app/api-reference/functions/generate-metadata#metadatabase`);
    }
    return fallbackMetadata;
}
function resolveUrl(url, metadataBase) {
    if (url instanceof URL) return url;
    if (!url) return null;
    try {
        // If we can construct a URL instance from url, ignore metadataBase
        const parsedUrl = new URL(url);
        return parsedUrl;
    } catch (_) {}
    if (!metadataBase) {
        metadataBase = createLocalMetadataBase();
    }
    // Handle relative or absolute paths
    const basePath = metadataBase.pathname || "";
    const joinedPath = path.join(basePath, url);
    return new URL(joinedPath, metadataBase);
}
// Resolve with `pathname` if `url` is a relative path.
function resolveRelativeUrl(url, pathname) {
    if (typeof url === "string" && url.startsWith("./")) {
        return path.resolve(pathname, url);
    }
    return url;
}
// Resolve `pathname` if `url` is a relative path the compose with `metadataBase`.
function resolveAbsoluteUrlWithPathname(url, metadataBase, pathname) {
    url = resolveRelativeUrl(url, pathname);
    const result = metadataBase ? resolveUrl(url, metadataBase) : url;
    return result.toString();
}
export { isStringOrURL, resolveUrl, resolveRelativeUrl, resolveAbsoluteUrlWithPathname,  };

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