import * as math from 'mathjs';
import * as _ from 'lodash';

export class RollingWindow {
    private windows: number[][];

    constructor(windows: number[][]) {
        this.windows = windows;
    }

    mean(): number[] {
        return this.windows.map(window => Number(math.mean(window)));
    }

    sum(): number[] {
        return this.windows.map(window => _.sum(window));
    }

    min(): number[] {
        return this.windows.map(window => Math.min(...window));
    }

    max(): number[] {
        return this.windows.map(window => Math.max(...window));
    }

    toArray(): number[][] {
        return this.windows;
    }
}