pedalboard-scripts/url.sh

#!/usr/bin/env bash

# author:   Daniel Sommer <daniel.sommer@velvettear.de>
# license:  MIT

set -e 

[[ -z "$1" ]] && printf "error: no endpoint given\n" && exit 1
url="$1"
[[ "$url" != "/"* ]] && url="/$url"

. "$(dirname $(realpath $0))/config.env"

index="$2"
if [[ "$index" ]] && [ "$index" -eq "$index" ] 2> /dev/null; then
    if [ "$index" -lt 0 ]; then
        index=0
    elif [ "$index" -gt 7 ]; then
        index=7
    fi
    url="$url/$index"
fi

function checkVariable() {
    [[ "$1" ]] && return 0
    printf "error: variable"
    [[ "$2" ]] && printf " \'$2\'"
    printf " is not set\n"
    exit 1
}

checkVariable "$PBC_PROTOCOL" "PBC_PROTOCOL"
checkVariable "$PBC_HOST" "PBC_HOST"
checkVariable "$PBC_PORT" "PBC_PORT"

url="$PBC_PROTOCOL://$PBC_HOST:$PBC_PORT$url"

printf "$url"