#!/usr/bin/env bash

########################################################
# Networking functions
########################################################

get_current_ip() {
    local CURRENT_IP
    [ -f /etc/os-release ] && source /etc/os-release
    case "$ID" in
        debian|ubuntu) CURRENT_IP=$(hostname -I | awk '{print $1}') ;;
        alpine) CURRENT_IP=$(ip -4 addr show eth0 | awk '/inet / {print $2}' | cut -d/ -f1 | head -n 1) ;;
        *) CURRENT_IP="Unknown" ;;
    esac
    echo "$CURRENT_IP"
}

get_external_ip() {
    local ip="$(curl -s https://api.myip.com | jq .ip)"
    echo "$ip" | tr -d '"'
}

is_valid_ipv4() {
    local ip="$1"
    local regex="^([0-9]{1,3}\.){3}[0-9]{1,3}$"

    if [[ $ip =~ $regex ]]; then
        IFS='.' read -r -a parts <<< "$ip"
        for part in "${parts[@]}"; do
            if ! [[ $part =~ ^[0-9]+$ ]] || ((part < 0 || part > 255)); then
                return 1
            fi
        done
        return 0
    fi
    return 1
}

curltime() {
    curl -w @- -o /dev/null -s "$@" <<'EOF'
    time_namelookup: %{time_namelookup} sec\n
       time_connect: %{time_connect} sec\n
    time_appconnect: %{time_appconnect} sec\n
   time_pretransfer: %{time_pretransfer} sec\n
      time_redirect: %{time_redirect} sec\n
 time_starttransfer: %{time_starttransfer} sec\n
                     ---------------\n
         time_total: %{time_total} sec\n
EOF
}