# send metadata to server and print the response
def send_metadata(m)
	data = json_of(m)
	# print("Sending metadata: "^data)
	ignore(http.post(
		data    = data,
		headers = [("Content-Type", "application/json; charset=utf-8")],
		timeout = 10.0,
		"http://#{confstr('api.host', 'localhost')}:#{confstr('api.port', '7005')}#{confstr('api.mount', 'api')}/internal/meta"
	))
end

def update_nowplaying(m)
	# Encode all text in UTF-8
	recode = string.recode(out_enc="UTF-8")
	def f(x)
		(recode(fst(x)),recode(snd(x)))
	end

	m = list.map(f,m)

	# Remove pictures from metadata
	m = list.remove_assoc("cover", m)
	m = list.remove_assoc("picture", m)

	# Append start time to metadata
	m = if m != [] then
		list.append(
			[("start", string_of(time()))]
		, m)
	else
		m
	end

	# Publish to API
	send_metadata(m)
end