utils.js

export const recognizeModifierTiming = function(string) {
	let r = /(\d+)([Mwdhms])/g
	let arr
	let res = []
	while ((arr = r.exec(string)) !== null) {
		res.push({
			value: parseInt(arr[1]),
			momentKey: arr[2]
		})
	}
	return res
}

export const calcRate = function(rate, total) {
	let amount
	let mod = rate.substr(rate.length - 1)
	let value = rate.slice(0, rate.length - 1)
	switch (mod) {
		case 'h':
			amount = (total/60/60) / parseFloat(value)
			break;
		case 'm':
			amount = (total/60) / parseFloat(value)
			break;
		case 's':
			amount = total / parseFloat(value)
			break;
	}
	if (!amount) {
		console.error('Invalid rate', rate)
		return
	}
	return amount.toFixed(2) + ((value === '1')? mod : ' * ' + rate)
}

export const humanParseDiff = function(secs, noSecOutput, zeroOutput) {
	if (!secs)
		return zeroOutput? '0m' : ''
	let hours   = Math.floor(secs / 3600)
	let minutes = Math.floor((secs - (hours * 3600)) / 60)
	let seconds = secs - (hours * 3600) - (minutes * 60)
	hours = (hours == 0 ? '' : (hours < 10 ? '0' + hours : hours) + 'h')
	minutes = ((minutes == 0 && hours == '') ? '' : (minutes < 10 ? '0' + minutes : minutes) + 'm')
	if (noSecOutput) return hours + minutes
	seconds = (seconds == 0 ? '' : (seconds  < 10 ? '0' + seconds : seconds) + 's')
	return hours + minutes + seconds
}