import { Subject, Observable } from 'rxjs';
import { DateService } from '../services/date/date.service';
import { Column } from './models/Column';
export declare class NgxCalendarTableService {
    private dateService;
    _date: Subject<any>;
    date$: Observable<any>;
    constructor(dateService: DateService);
    /**
     * Build calendar table columns.
     * Create range of dates to generate columns.
     *
     * @param date {Date} Receive a date
     * @param columnsNumber {number} Number of columns to render + 1
     * @param frequency {string} Can set days, month, year
     * @param format {string} You can choose the format based on momentjs
     *
     * @example buildColumns(new Date(), 4, 'month', 'MM/YYYY')
     *
     * @returns Array of Columns
     */
    buildColumns(date: Date, columnsNumber: number, frequency: string, format: string): Column[];
    /**
     * Generate range of columns
     *
     * @param range {date} Receives an array of dates
     * @param frequency {string} Can set days, month, year
     * @param format {string} You can choose the format based on momentjs
     *
     * @returns Array of Columns
     */
    generateColumns(range: Date[], frequency: string, format: string): Column[];
    /**
     * Return a column
     *
     * @param key {string} column identificator
     * @param date {date} column date parameter
     * @param header {string} header to show on template
     * @param frequency {string} Can set days, month, year
     *
     * @returns Instance of Column
     */
    getColumn(key: string, date: Date, header: string, frequency?: string): Column;
    /**
     * Return column header
     *
     * @param date {date} date to format
     * @param format {string} You can choose the format based on momentjs
     *
     */
    getColumnHeader(date: Date, format: string): string;
    /**
     * Return column key
     * It usually be a column identificator but it is not a requirement
     *
     * @param date {date}
     * @param frequency {string} Can set days, month, year
     */
    getColumnKey(date: Date, frequency: string): string;
    /**
     * Manipulate rows to create identification for matching with columns
     *
     * @param rows {any} An array of objects
     * @param frequency {string} Can set days, month, year
     */
    manipulateRows(rows: any[], frequency: string): void[];
    /**
     * Generate an identificator property to row
     *
     * @param row {object} it usually be date and value like { '2018-04-14' : value }
     * @param key {string} key of object. ex: '2018-04-14'
     * @param frequency {string} Can set days, month, year
     */
    private generateRowIdentificator(row, key, frequency);
    /**
     * Build column key structure
     *
     * @param key
     * @param value
     */
    private buildColumnKey(key, value);
    /**
     * Push into row generated by columnKey
     *
     * @param rowKey
     * @param rowValue
     */
    private pushIntoKeyRow(rowKey, rowValue);
    /**
     * Verify if there are value in the row and it is an populated array
     *
     * @param row
     * @param columnKey
     */
    private hasRowKeyIdentificator(row, columnKey);
}