import { S3Client } from '@aws-sdk/client-s3';
import { R2Bucket } from '@cloudflare/workers-types';
export { R2Bucket } from '@cloudflare/workers-types';
import { Adapter } from '../index.js';

interface R2HttpOptions {
    bucket: string;
    accountId?: string;
    accessKeyId?: string;
    secretAccessKey?: string;
    /**
     * Origin used to build URLs from `url()` — typically an `r2.dev`
     * subdomain or a custom domain bound to the bucket. When set, `url()`
     * returns `${publicBaseUrl}/${key}` and skips signing. When unset,
     * `url()` returns a presigned GetObject URL (default expiry: 1 hour).
     */
    publicBaseUrl?: string;
    /**
     * Default expiry, in seconds, for `url()` when `publicBaseUrl` is unset.
     * Defaults to 3600.
     */
    defaultUrlExpiresIn?: number;
}
interface R2BindingOptions {
    binding: R2Bucket;
    bucket?: string;
    /**
     * Origin used to build URLs from `url()` — typically an `r2.dev`
     * subdomain or a custom domain bound to the bucket. Without this (and
     * without HTTP credentials below), `url()` throws because a Workers
     * binding has no signing primitive.
     */
    publicBaseUrl?: string;
    /**
     * Hybrid mode: provide HTTP credentials alongside a Workers binding.
     * When all three are set, `url()` (when no `publicBaseUrl` is
     * configured, or when `responseContentDisposition` is requested) and
     * `signedUploadUrl()` route through the S3-compatible HTTP signer
     * instead of throwing. Reads and writes still go through
     * the binding so they stay intra-Worker (no egress fees, no extra
     * round trip). Useful for Workers that need browser-facing presigned
     * URLs without giving up the binding's I/O performance.
     */
    accountId?: string;
    accessKeyId?: string;
    secretAccessKey?: string;
    /**
     * Default expiry, in seconds, for `url()` when it falls back to HTTP
     * signing (hybrid mode without `publicBaseUrl`). Defaults to 3600.
     */
    defaultUrlExpiresIn?: number;
}
type R2AdapterOptions = R2BindingOptions | R2HttpOptions;
type R2Adapter = Adapter<S3Client | R2Bucket>;
declare const r2: (opts: R2AdapterOptions) => R2Adapter;

export { type R2Adapter, type R2AdapterOptions, type R2BindingOptions, type R2HttpOptions, r2 };