#!/usr/bin/env bash
# set -vx

if [ $# -lt 3 ]; then
    printf "not enough arguments given\n\
usage: ltranslate sourcelang targetlang query\n"
    exit 1
fi

dependencycheck() {
    numdependencies="$#"
    dependencies=("$@")
    missingdependencies=0
    for ((i = 0; i < numdependencies; i++)) ; do
        if ! command -v "${dependencies[$i]}" &> /dev/null ; then
            printf "dependency not met: %s\n" "${dependencies[$i]}"
            missingdependencies=$((missingdependencies+1))
        fi
    done
    if [ $missingdependencies -gt 0 ]; then
        exit 1
    fi
}

dependencycheck curl awk sed

ua='Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36'
url="https://libretranslate.de/translate"
headers="Content-Type: application/json"
source=$1
target=$2
query="${*:3}"

main() {
    result=$(curl -sAX POST "${ua}" "${url}" -H "${headers}" -d  '{"q": "'"${query}"'", "source": "'"${source}"'", "target": "'"${target}"'"}' |  awk -F ':' '{ print $2 }' | sed 's/"//g; s/}//g')
    printf '%s'"${result}\n"
}

main