import { DeviceEntity, UserEntity } from '..';
export declare class ChartData {
    startDate: Date;
    endDate: Date;
    range: number;
    data: any[];
    constructor(data: UserEntity[] | DeviceEntity[], range: number);
    /**
     *
     * @param date date which to offset
     * @param offset in days (1, 2, 3)
     */
    private calculateOffset;
    private dataInRange;
    getLabels(): any[];
    private count;
    getData(): any[];
}
export declare const defaultChartOptions: {
    maintainAspectRatio: boolean;
    height: number;
    scales: {
        xAxes: {
            ticks: {
                fontColor: string;
                reverse: boolean;
                beginAtZero: boolean;
                precision: number;
            };
        }[];
        yAxes: {
            ticks: {
                fontColor: string;
                beginAtZero: boolean;
                precision: number;
            };
        }[];
    };
    title: {
        fontColor: string;
    };
    labels: {
        fontColor: string;
    };
    legend: {
        display: boolean;
        labels: {
            fontColor: string;
        };
    };
    ticks: {
        beginAtZero: boolean;
        precision: number;
    };
};