Function getChartDomainFunctions

src/shared/data.ts:45–69

(values: number[], padding: number = 0)

    getOffsetAndSizeForRange: (x: number, y?: number) => { offset: string; size: string };
}
export const getChartDomainFunctions = (values: number[], padding: number = 0): ChartDomainFunctions => {
    const flip = values.every((x) => x <= 0) ? -1 : 1;
    values = values.map((x) => x * flip);

    let min = Math.min(0, ...values);
    let max = Math.max(0, ...values);

    if (min === 0 && max === 0) {
        max = 0.1;
    }

    const valueRange = max - min;
    min -= min ? valueRange * padding : 0;
    max += valueRange * padding;

    const scale = (raw: number) => (raw / (max - min)) * 100 + "%";

    const getPoint = (raw: number) => scale(raw * flip - min);
    const getOffsetAndSizeForRange = (x: number, y: number = 0) => ({
        offset: scale(Math.min(x * flip, y * flip) - min),
        size: scale(Math.abs(x - y)),
    });

    return { getPoint, getOffsetAndSizeForRange };
};

export const mapValuesWithKeys = <K extends string | number, V, O>(object: Record<K, V>, fn: (k: K, v: V) => O) =>
    fromPairs(toPairs(object).map(([k, v]) => [k, fn(k as K, v as V)])) as Record<K, O>;