#!/bin/sh
if ! tmux -V 2>/dev/null >/dev/null; then
	echo "tmux not installed!"
	exit 1
fi
if ! lua -v 2>/dev/null >/dev/null; then
	echo "lua not installed!"
	exit 1
fi
if ! nc	-h 2>/dev/null >/dev/null; then
	echo "nc not installed!"
	exit 1
fi
RANDID=$(cat /dev/urandom | head -c 4 | xxd -p)
TMPDIR=/tmp/tstream_client_$RANDID
mkdir $TMPDIR
mkfifo $TMPDIR/datout
mkfifo $TMPDIR/nc_in
mkfifo $TMPDIR/nc_out
mkfifo $TMPDIR/arg_width
mkfifo $TMPDIR/arg_height
cat >$TMPDIR/ncread <<EOF
#!/usr/bin/env lua
local nc_out=io.open("$TMPDIR/nc_out")
local nc_in=io.open("$TMPDIR/nc_in","w")
local function wrfile(name,str)
	local file=io.open("$TMPDIR/"..name,"w")
	file:write(tostring(str))
	file:close()
end
while true do
	local line=nc_out:read()
	if not line then
		wrfile("arg_width","40")
		wrfile("arg_height","10")
		wrfile("datout","error occured\n")
		error("what!")
	end
	if line:match("SIZE .+") then
		local w,h=line:match("SIZE (.-) (.+)")
		w,h=tonumber(w),tonumber(h)
		wrfile("arg_width",w)
		wrfile("arg_height",h)
		break
	end
end
nc_in:write("\n")
nc_in:flush()
local datout=io.open("$TMPDIR/datout","w")
while true do
	datout:write(nc_out:read(1))
	datout:flush()
end	
EOF
chmod +x $TMPDIR/ncread

$TMPDIR/ncread &
{ cat $TMPDIR/nc_in | nc $@ | tee $TMPDIR/nc_out > /dev/null; } &
echo run
WIDTH=$(head -n 1 $TMPDIR/arg_width)
echo width $WIDTH
HEIGHT=$(head -n 1 $TMPDIR/arg_height)
echo height $HEIGHT
tmux new "tmux resize-window -x $WIDTH -y $HEIGHT;tmux set status off; cat $TMPDIR/datout"
jobs
kill %1
kill %2
rm -rf $TMPDIR
wait