import { HttpRequest } from "./http";

export declare type DateInput = number | string | Date;
export interface SigningArguments {
    
    signingDate?: DateInput;
    
    signingService?: string;
    
    signingRegion?: string;
}
export interface RequestSigningArguments extends SigningArguments {
    
    unsignableHeaders?: Set<string>;
    
    signableHeaders?: Set<string>;
}
export interface RequestPresigningArguments extends RequestSigningArguments {
    
    expiresIn?: number;
    
    unhoistableHeaders?: Set<string>;
}
export interface EventSigningArguments extends SigningArguments {
    priorSignature: string;
}
export interface RequestPresigner {
    
    presign(requestToSign: HttpRequest, options?: RequestPresigningArguments): Promise<HttpRequest>;
}

export interface RequestSigner {
    
    sign(requestToSign: HttpRequest, options?: RequestSigningArguments): Promise<HttpRequest>;
}
export interface StringSigner {
    
    sign(stringToSign: string, options?: SigningArguments): Promise<string>;
}
export interface FormattedEvent {
    headers: Uint8Array;
    payload: Uint8Array;
}
export interface EventSigner {
    
    sign(event: FormattedEvent, options: EventSigningArguments): Promise<string>;
}