import { HttpHeaders, HttpParams } from '@angular/common/http';
import { InjectionToken } from '@angular/core';
import { Observable } from 'rxjs';
import { Region, Version } from './region.provider';
/**
 * Client Configuration
 * =============================================================================
 * Users inject either a static or observable configuration which is then
 * handled internally as an observable anyhow.
 */
export interface Client {
    name: string;
    version: string;
}
export interface Tokens {
    account?: string;
    organisation?: string;
    team?: string;
}
export interface Config {
    client: Client;
    region: Region;
    tokens: Tokens;
    version?: Version;
}
/**
 * Client Tokens
 * =============================================================================
 */
export declare const CLIENT_NAME = "D4H API CLIENT";
export declare const CLIENT_VERSION = "8.1.3";
export declare const CLIENT_CONFIG: InjectionToken<Observable<Config>>;
export declare const CLIENT_DEFAULT_CONFIG: InjectionToken<Partial<Config>>;
export declare const defaultConfig: Partial<Config>;
/**
 * Client HttpClient Parameters
 * =============================================================================
 * Taken from Angular HttpClient and wrapped up here for niceness. The idea is
 * that the client transparently extends the necessary interfaces of Angular's
 * HttpClient.
 *
 * @see https://angular.io/api/common/http/HttpClient
 */
export declare type Params = HttpParams | {
    [param: string]: string | Array<string>;
};
export declare type Headers = HttpHeaders | {
    [header: string]: string | Array<string>;
};
export interface HttpOptions {
    body?: any;
    headers?: Headers;
    observe?: 'body';
    params?: Params;
    reportProgress?: boolean;
    responseType?: 'json';
    withCredentials?: boolean;
}
/**
 * Client Requests and Sigining
 * =============================================================================
 * Parse API requests to D4H. Various things have to be set:
 *
 * 1. Full resolved URL based on injected configuration.
 * 2. Authentication (bearer token) for authenticated routes.
 * 3. Assignation of other headers, such as client identication.
 * 4. Sanitization/handling of parameters.
 *
 * These are injected via the module to allow freedom of development later, and
 * to eventually open up wider configuration to developers.
 */
export interface ClientRequestParser {
    options(config: Config, url: string, options?: HttpOptions): HttpOptions;
    url(config: Config, url: string): string;
}
export interface ClientRequestAuth {
    bearerToken(tokens: Tokens, url: string, options: HttpOptions): {
        Authorization: string;
    };
}