#!/usr/bin/env bash
[ -f functions.sh ] && source functions.sh

# Dependencies required by this module
dependencies=("units")

shift
chan="$1"
shift

# Check dependencies before running
if ! check_dependencies "${dependencies[@]}"; then
    msg "$chan" "$1: This module requires: ${dependencies[*]}"
    exit 1
fi

# Validate input
if [[ -z "$*" ]]; then
    msg "$chan" "Please provide a unit conversion (e.g., '10 meters to feet')."
    exit 0
fi

# Quote variables to prevent command injection
msg "$chan" "$(units -v "${*#* }" | head -n1 | tr -d '[:space:]')"