#!/usr/bin/env sh

set -euo pipefail

url="https://ip.frogeye.fr/json"
cachedir="$HOME/.cache/lip"

ip="${1:-}"
if [ $# -gt 0 ]
then
    shift
    jq_sel="$@"
else
    jq_sel="del(.user_agent)"
fi

if [ -n "$ip" ]
then
    cachefile="$cachedir/$ip"
    if ! find "$cachefile" -mtime -7 &> /dev/null
    then
        mkdir -p "$cachedir"
        curl --silent "$url?ip=$ip" > "$cachefile"
    fi
    cat "$cachefile" | jq $jq_sel
else
    curl --silent "$url" | jq $jq_sel
fi