import { Observable } from 'rxjs/Observable';
import { Subject } from 'rxjs/Subject';
import { ActivatedRoute } from '@angular/router';
import { Spaces } from 'ngx-fabric8-wit';
import { HttpService } from './http-service';
import { WorkItem } from './../models/work-item';
import { FilterModel } from '../models/filter.model';
export declare class FilterService {
    private http;
    private spaces;
    private route;
    private baseApiUrl;
    filters: FilterModel[];
    activeFilters: any[];
    filterChange: Subject<{}>;
    filterObservable: Subject<any>;
    private headers;
    and_notation: string;
    or_notation: string;
    equal_notation: string;
    not_equal_notation: string;
    in_notation: string;
    not_in_notation: string;
    sub_str_notation: string;
    special_keys: {
        'null': any;
        'true': boolean;
        'false': boolean;
        '': any;
    };
    private compare_notations;
    private join_notations;
    private filtertoWorkItemMap;
    constructor(http: HttpService, spaces: Spaces, route: ActivatedRoute, baseApiUrl: string);
    setFilterValues(id: any, value: any): void;
    getFilterValue(id: any): any;
    applyFilter(): void;
    getAppliedFilters(includeSidePanel?: boolean): any;
    getFiltersFromUrl(): any;
    clearFilters(keys?: string[]): void;
    /**
     * getFilters - Fetches all the available filters
     * @param apiUrl - The url to get list of all filters
     * @return Observable of FilterModel[] - Array of filters
     */
    getFilters(): Observable<FilterModel[]>;
    /**
     * getFilters - Fetches all the available filters
     * @param apiUrl - The url to get list of all filters
     * @return Observable of FilterModel[] - Array of filters
     */
    getFilters2(apiUrl: any): Observable<FilterModel[]>;
    returnFilters(): FilterModel[];
    /**
     * Usage: to check if the workitem matches with current applied filter or not.
     * TODO: Make this function better and smarter
     * NOTE: To add a new filter you have to do nothing here, just update the filtertoWorkItemMap
     * @param WorkItem - workItem
     * @returns boolean
     */
    doesMatchCurrentFilter(workItem: WorkItem): boolean;
    /**
     * Take the existing query and simply AND it with provided options
     * @param existingQuery
     * @param options
     */
    constructQueryURL(existingQuery: string, options: Object): string;
    /**
     *
     * @param key The value is the object key like 'workitem_type', 'iteration' etc
     * @param compare The values are
     *                FilterService::equal_notation',
     *                FilterService::not_equal_notation',
     *                FilterService::not_equal_notation',
     *                FilterService::in_notation',
     *                FilterService::not_in_notation'
     * @param value string or array of string of values (in case of IN or NOT IN)
     */
    queryBuilder(key: string, compare: string, value: string | string[]): any;
    /**
     *
     * @param existingQueryObject
     * @param join The values are
     *                FilterService::and_notation,
     *                FilterService::or_notation
     * @param newQueryObject
     */
    queryJoiner(existingQueryObject: object, join: string, newQueryObject: object): any;
    /**
     * Query string to JSON conversion
     */
    queryToJson(query: string, first_level?: boolean): any;
    jsonToQuery(obj: object): string;
    /**
     * This decodes a key query term value from a given query string. It is used to
     * shortcut the parsing of the query string to get context info from it. Currently,
     * it is used when getting the context info from an existing query to give context
     * to a following UX flow. This only supports a very narrow usecase currently, but
     * may be extended later.
     *
     * @param queryString search/filter query string.
     * @param key key of the term for which we look for the value.
     */
    getConditionFromQuery(queryString: string, key: string): string;
    queryToFlat(query: string): {
        field: string;
        index: number;
        value: string;
    }[];
    flatToQuery(arr: any[]): {};
}