export type ChartDataset = {
    label?: string;
    data: (number | null)[];
    backgroundColor?: string;
    borderColor?: string;
    type?: "bar" | "line";
    scope: "initial" | "trajectory" | "goal";
    forceLegend?: boolean;
    isGoalNull?: boolean;
};
export type ChartState = {
    dataset: ChartDataset[];
    allLabels: string[];
    totalNumberOfIems: number;
};
export declare const getEmptyChartState: () => ChartState;
export type InitialBarData = {
    label: string;
    value: number;
    color?: string;
};
export declare const getInitialBars: (initialValues: InitialBarData[], chartState: ChartState, label?: string, color?: string) => ChartState;
export type TrajectoryScore = number | null;
export type TrajectoryBarData = {
    label: string;
    values: [TrajectoryScore, TrajectoryScore];
};
export type TrajectoryOptions = Partial<{
    label: string;
    color?: string;
}>;
export declare const getTrajectoryBars: (trajectory: TrajectoryBarData[], chartState: ChartState, trajectoryOptions?: {
    main?: TrajectoryOptions;
    difference?: TrajectoryOptions;
}) => ChartState;
type GoalLineOptions = {
    goal: number | null;
    chartState: ChartState;
    label?: string;
    color?: string;
    forceLegend?: boolean;
};
export declare const getGoalLine: (options: GoalLineOptions) => ChartState;
export {};