platform.pluto

platform = {}

function platform.watchinput(fn)
	local handler = function()
		js_invoke("get_input")
		fn(io.contents("input"))
	end

	document.getElementById("input"):addEventListener("input", handler)
	if tool.numeric then
		document.getElementById("format"):addEventListener("input", handler)
	end

	js_invoke("get_input")
	fn(io.contents("input"))
end

function platform.setoutput(data)
	if tool.numeric then
		-- Assuming we have an unsigned int here. Passing it on to Javascript will make it signed because WASM is 32-bit but using `tostring` produces the unsigned representation.
		switch document.getElementById("format").value do
			case "Decimal (Unsigned)": data = tostring(data) break
			case "Hexadecimal (Unsigned)": data = string.format("%08X", data) break
		end
	end
	document.getElementById("output").value = data
end

function platform.setoutputpng(data)
	document.getElementById("output").src = "data:image/png;base64,"..(require"base64".encode(data))
end

function platform.watchoutput(fn)
	document.getElementById("output"):removeAttribute("readonly")
	document.getElementById("output"):addEventListener("input", function()
		js_invoke("get_output")
		fn(io.contents("output"))
	end)
end

function platform.setinput(data)
	document.getElementById("input").value = data
end