#!/bin/sh
# vim: shiftwidth=4 tabstop=4 noexpandtab

# constants
data_repo="${HOME}/.local/share/mydata"
data_rel="tables/urls.tsv"
data_abs="${data_repo}/${data_rel}"

# check if data file exists
if ! [ -f "${data_abs}" ]
then
	echo "Data file '""${data_abs}""' not found."
	exit 1
fi

# select a menu program or panic
if command -v bemenu > /dev/null 2>&1
then
	menu='bemenu'
elif command -v dmenu > /dev/null 2>&1
then
	menu='dmenu'
elif command -v sxmo_dmenu.sh > /dev/null 2>&1
then
	menu='sxmo_dmenu.sh'
else
	echo 'You have to install bemenu, sxmo_dmenu.sh or dmenu!'
	exit 1
fi

# check firefox dependency and warn user if necessary
if ! command -v firefox > /dev/null 2>&1
then
	echo 'You have to install firefox.'
	exit 1
fi

# let user select the URL
closer="close menu"
line="$(sed "$ a ${closer}" < "${data_abs}" | ${menu} -l 10)"
selection="$(echo "${line}" | awk -F '\t' '{print $1}')"

# exit or open URL in browser
if [ "${selection}" = "${closer}" ]
then
	exit 0
else
	firefox "${selection}"
fi