// written by /u/Worish
const pretitle = "DecToHex"
const title = "Input: "
const input = String(args.widgetParameter)
const title2 = "Output: "
const color = "#53d769"

// if we're a widget
if (config.runsInWidget) {
	// create widget object
	let widget = createWidget(pretitle, title, input, title2, color)
	// show widget
	Script.setWidget(widget)
	// 	end script
	Script.complete()
} else {
	output = decToHex(String(input))
	
	// 	make table
	let table = new UITable()
	
	let row = new UITableRow()
	row.isHeader = true
	row.addText('Decimal to Hex Conversion')
	table.addRow(row)
			table.addRow(createRow("Input","Output"))
	table.addRow(createRow(input,output))
	
	if (config.runsWithSiri)
		Speech.speak("The decimal number "+input+", in hexadecimal is "+output)

	table.present()
	
	// 	end script
	Script.complete()
}

function createRow(a,b) {
	let row = new UITableRow()
	row.addText(a)
	row.addText(b).rightAligned
	
	return row
}

function createWidget(pretitle, title, input, title2, color) {
	let w = new ListWidget()
	
	output = decToHex(String(input))
	
	w.backgroundColor = new Color(color)
	
	txtColor = Color.white()
	
	formatWidgetRow(0, w, pretitle, txtColor, 0.8, 16)
	
	formatWidgetRow(5, w, title+input, txtColor, 0.8, 20)
	
	formatWidgetRow(5, w, title2+output, txtColor, 0.8, 20)
	
	return w
}

function formatWidgetRow(prespacing, widget, text, color, opacity, size) {
	widget.addSpacer(prespacing)
	let theTxt = widget.addText(text)
	theTxt.textColor = color
	theTxt.textOpacity = opacity
	theTxt.font = Font.systemFont(size)
}

function decToHex(input) {
	inNum = Number(input)
	outString=""
	
	for (i=input.length;i>0;i--) {
		appendix=intDiv(inNum,i-1)
		inNum=modSixteen(inNum,i-1)
		outString=outString+appendix
		if (Number(outString) == 0) {
			outString=""
		}
	}
	
	return String(outString)
}

// written by /u/Worish

function intDiv(input, degree) {
	digit = Math.floor(input/(16**degree))
	output = digitChanger(digit)
	return output
}

function modSixteen(input,degree) {
	output = input % (16**degree)
	return output
}

function digitChanger(digit) {
	if (digit == 10) {return "A"}
	else if (digit == 11) {return "B"}
	else if (digit == 12) {return "C"}
	else if (digit == 13) {return "D"}
	else if (digit == 14) {return "E"}
	else if (digit == 15) {return "F"}
	else {return String(digit)}
}