ref

#!/usr/bin/bash

prefix="${PREFIX:-/usr}/share/ref"

cmd="$1"
filename="$2"

function search_target(){
	local find_result=$(find $prefix -type f -regex ".*/$1.md")
	local target

	if [ -z "$find_result" ];then
		find_result=$(find $prefix -type f -regex ".*/$1")
	fi

	if [ $(echo "$find_result" | wc -l) -gt 1 ] && [ -t 0 ] ; then

		select target in $find_result; do
			if [ -n "$target" ]; then
				echo "$target"
				break
			else
				echo "Invalid selection."
			fi
		done

	else
		echo "$find_result" | head -n 1
	fi

}

if [ -z "$cmd" ] || [ -z "$filename" ]; then
	echo "available filename:"
	echo "$(find $prefix -type f -regex ".*" -printf "%f\n")"

	echo ""
	echo "Usage: $0 <command> <filename>"
	echo "e.g.: $0 echo cpp"
	echo "e.g.: ls -l $($0 echo cpp)"
	echo "e.g.: $0 nvim cpp"
	echo "e.g.: $0 glow cpp"
	echo "e.g.: $0 microsoft-edge-stable cpp"

else
	"$cmd" $(search_target "$filename")
fi