import { Observable } from 'rxjs/Observable';
import { AxiosInstance } from 'axios';
import { TemporalPage, Data, BatchedData } from '../types';
export declare abstract class DataClient {
    protected host: string;
    protected ax: AxiosInstance;
    constructor(host: string, axiosInstance: AxiosInstance);
    /**
     * The item collection over which the MultiClient iterates (sourceIds or geohashes).
     */
    protected abstract getMultiItems(): string[];
    /**
     * The path portion of the api, starting with '/' ending with '/events'.
     * @param item The injected item of the item collection returned by getMultiItems()
     */
    protected abstract getBaseApiPath(item: string): string;
    private generateLatestUrls(metric);
    private generateEventUrls(metric, queryStr);
    private generateStatsUrls(metric, type, timeStr);
    /**
     * Methods for retrieving data of a particual metric
     * @param metric metric name
     */
    getData(metric: string): IData;
    /**
     * Methods for retrieving statistics of a particular metric
     */
    getStats(metric: string): IStats;
}
/**
 * Methods for retrieving data
 */
export interface IData {
    /**
     * Returns the latest data of each item (location or source).
     */
    latest: () => Observable<TemporalPage>;
    /**
     * Poll for the latest data of each item (location or source). Every update will be sent through,
     * hence it is mandatory to check the data for the key.
     * @param period {number} The period in milliseconds of the polling.
     * @param fromTS {number=} The UNIX UTC timestamp from which to start polling. If not present the last data will be polled.
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    poll: (period: number, fromTS?: number) => Observable<TemporalPage>;
    /**
     * Returns data for each item (location or source) within the assigned areas as a single array of TemporalPageData objects.
     * @param fromTS {number} Timestamp (UNIX UTC) from which to start the requested range
     * @param toTS {number} Timestamp (UNIX UTC) until which to query
     * @returns An Observable containing an array of objects.
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    range: (fromTS: number, toTS: number) => Observable<TemporalPage>;
}
/**
 * Methods for retrieving statistics
 */
export interface IStats {
    /**
     * Methods for retrieving a single statistics unit (of an hour/day)
     */
    getUnit: () => IStatsUnit;
    /**
     * Methods for retrieving a group of statistics (of a day)
     */
    getBatch: () => IStatsBatch;
}
export interface IStatsUnit {
    /**
     * Returns statistics for all measured values in one hour.
     * @param hourTS The UTC timestamp of a single hour
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getHour: (hourTS: number) => Observable<TemporalPage>;
    /**
     * Returns statistics for all measured values per hour in a range.
     * @param fromTS The UTC timestamp of a single hour to start the range from
     * @param toTS The UTC timestamp of a single hour to end the range with
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getHourRange: (fromTS: number, toTS: number) => Observable<TemporalPage>;
    /**
     * Get a single statistics hour unit as a recap representing the requested range.
     * @param fromTS The UTC timestamp of a single hour to start the range from
     * @param toTS The UTC timestamp of a single hour to end the range with
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getHourRecap: (fromTS: number, toTS: number) => Observable<Data>;
    /**
     * Get a single statistics hour unit as a recap representing the requested hours.
     * @param hourTS All timestamps representing the hours to get a recap from
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getHourRecapOf: (...hourTS: number[]) => Observable<Data>;
    /**
     * Returns statistics for all measured values in one day.
     * @param dayTS The UTC timestamp of a single day
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getDay: (dayTS: number) => Observable<TemporalPage>;
    /**
     * Returns statistics for all measured values per day in an range.
     * @param fromTS The UTC timestamp of a single day to start the range from
     * @param toTS The UTC timestamp of a single day to end the range with
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getDayRange: (fromTS: number, toTS: number) => Observable<TemporalPage>;
    /**
     * Get a single statistics day unit as a recap representing the requested range.
     * @param fromTS The UTC timestamp of a single day to start the range from
     * @param toTS The UTC timestamp of a single day to end the range with
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getDayRecap: (fromTS: number, toTS: number) => Observable<Data>;
    /**
     * Get a single statistics day unit as a recap representing the requested days.
     * @param dayTS All timestamps representing the days to get a recap from
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getDayRecapOf: (...dayTS: number[]) => Observable<Data>;
}
export interface IStatsBatch {
    /**
     * Returns a disgest of statistics for all measured values of a single day. The batch contains an overview of multiple bins.
     * @param dayTS The UTC timestamp of a single day
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getDay: (dayTS: number) => Observable<TemporalPage>;
    /**
     * Returns a batch of statistics for all measured values per day in an range.
     * @param fromTS The UTC timestamp of a single day to start the range from
     * @param toTS The UTC timestamp of a single day to end the range with
     * @see Util.Time.timestampOf to easily create a UTC timestamp
     */
    getDayRange: (fromTS: number, toTS: number) => Observable<TemporalPage>;
    /**
     * Get a single statistics day batch as a recap representing the requested range
     * @param fromTS The UTC timestamp of a single day to start the range from
     * @param toTS The UTC timestamp of a single day to end the range with
     */
    getDayRecap: (fromTS: number, toTS: number) => Observable<BatchedData>;
    /**
    * Get a single statistics day batch as a recap representing the requested days.
    * @param dayTS All timestamps representing the days to get a recap from
    * @see Util.Time.timestampOf to easily create a UTC timestamp
    */
    getDayRecapOf: (...dayTS: number[]) => Observable<BatchedData>;
}