import { HttpClient, HttpEvent, HttpRequest, HttpErrorResponse, HttpResponse, HttpParams } from '@angular/common/http';
import { HttpHeaders } from '@angular/common/http';
import { BehaviorSubject, Observable, Subscriber, Subject } from 'rxjs';
import { ApiSchema } from './providers/api-schema';
import { ServersInfo } from './providers/servers.info.provider';
import { ApiErrorHandler, ValidationType } from './providers/event-manager.provider';
import { RequestSender } from './providers/request-sender';
export interface RequestMetadataResponse {
    url?: string;
    request?: Request;
}
export declare abstract class ApiService<R, B, P = null> implements RequestSender<R, B> {
    protected httpClient: HttpClient;
    protected errorHandler: ApiErrorHandler;
    protected serversInfo: ServersInfo;
    protected resetApiSubscribers: Subject<void>;
    protected virtualConnectionStatus: BehaviorSubject<boolean>;
    protected disableValidation: boolean;
    private static _ajv;
    protected abstract get method(): ('DELETE' | 'GET' | 'HEAD' | 'JSONP' | 'OPTIONS') | ('POST' | 'PUT' | 'PATCH');
    /**
     * JSON Schema, используемая для проверки данных запросов.
     */
    protected abstract get schema(): ApiSchema;
    /**
     * Шаблон пути, например: `/stock-cars/{id}`.
     */
    protected abstract get pathTemplate(): string;
    /**
     * Параметры в запросе.
     */
    protected abstract get queryParams(): string[];
    /**
     * Перечисление адресов серверов.
     */
    protected abstract get servers(): string[];
    private _ajvComplier;
    /**
     * Кэш скомпилированных ajv-валидаторов для этого сервиса.
     */
    private _ajvCaches;
    /**
     *
     * @param httpClient
     * @param errorHandler
     * @param serversInfo
     * @param resetApiSubscribers
     * @param virtualConnectionStatus
     * @param disableValidation
     * @param domainSchema
     */
    protected constructor(httpClient: HttpClient, errorHandler: ApiErrorHandler, serversInfo: ServersInfo, resetApiSubscribers: Subject<void>, virtualConnectionStatus: BehaviorSubject<boolean>, disableValidation: boolean, domainSchema: any);
    /**
     * Получение актуального пути (без завершающего слэша).
     * Если вернет `null`, скорее всего, надо использовать
     */
    getServerPath(): string | null;
    /**
     * Get url's list have to be used in queries
     */
    getActualServerUrls(): string[];
    /**
     * @param payLoad
     * @param params
     * @param requestOptions
     * @param statusChanges
     * - `true` — emit status changes in result
     * - `false` — don't emit status changes in result
     * - Object of `Subject` — emit status changes in this channel
     *
     * @param metadataResponse
     * Used mainly in tests. Don't use it.
     *
     * Object that can be set for getting immediate response
     * with metadata of request. Mainly has uses in tests.
     */
    request(payLoad: B, params?: P, requestOptions?: {
        headers?: HttpHeaders;
        reportProgress?: boolean;
        params?: HttpParams;
        responseType?: 'arraybuffer' | 'blob' | 'json' | 'text';
        withCredentials?: boolean;
    }, statusChanges?: Subject<HttpEvent<any>> | boolean, metadataResponse?: RequestMetadataResponse): Observable<HttpResponse<R> | HttpEvent<R>>;
    /**
     * Попытка выполнения запроса, которая может быть повторена.
     * Метод используется для повторных запросов при обработке
     * ошибок, а также, внутри метода `request`.
     * @see request
     *
     * @param request
     * @param subscriber
     * @param statusChanges
     * @param lastError
     * Последняя возникшая ошибка, если это не первая попытка.
     * @param remainAttemptsNumber
     */
    requestAttempt(request: HttpRequest<B>, subscriber: Subscriber<HttpResponse<R> | HttpEvent<any>>, statusChanges?: Subject<HttpEvent<any>> | boolean, lastError?: HttpErrorResponse, remainAttemptsNumber?: number): void;
    /**
     * @param value
     * @param type
     * @param subscriber
     * @param statusChanges
     * @param statusCode
     */
    protected _validate(value: any, type: ValidationType, subscriber: Subscriber<HttpResponse<R>>, statusChanges?: Subject<HttpEvent<any>> | boolean, statusCode?: number | null, contentType?: string): void | false;
    /**
     * @param subscriber
     * @param request
     * @param originalEvent
     * @param statusChanges
     * @param remainAttemptsNumber
     */
    protected _handleHttpError(subscriber: Subscriber<HttpResponse<R>>, request: HttpRequest<B>, originalEvent: HttpErrorResponse, statusChanges: Subject<HttpEvent<any>> | boolean, remainAttemptsNumber: number): void;
}