dfcreative/mumath

/**
 * Get step out of the set
 *
 * @module mumath/step
 */
'use strict';

var lg = require('./log10');

module.exports = function (minStep, srcSteps) {
    var power = Math.floor(lg(minStep));

    var order = Math.pow(10, power);
    var steps = srcSteps.map(v => v*order);
    order = Math.pow(10, power+1);
    steps = steps.concat(srcSteps.map(v => v*order));

    //find closest scale
    var step = 0;
    for (var i = 0; i < steps.length; i++) {
        step = steps[i];
        if (step >= minStep) break;
    }

    return step;
};