#!/bin/bash
##makedesc: Install Wireguard + FRKN
source `dirname $0`/../helpers || exit 255

# https://frkn.org/ru/installation

title

mkdir -p "$HOME/install/frkn"
cd "$HOME/install/frkn"

apt_install wireguard jq

countries=(uk ru nl nl2 ch)
for idx in ${!countries[@]}; do
    country=${countries[idx]}
    info "Downloading config for $country ($(expr $idx + 1)/${#countries[@]})"

    json=$(curl -s "https://api.frkn.org/peer?location=$country" | jq)

    iface_address=$(echo $json | jq -r .iface.address)
    iface_privkey=$(echo $json | jq -r .iface.key)
    iface_dns=$(echo $json | jq -r .iface.dns)
    peer_pubkey=$(echo $json | jq -r .peer.pubkey)
    peer_psk=$(echo $json | jq -r .peer.psk)
    peer_allowed_ips=$(echo $json | jq -r .peer.allowed_ips)
    peer_endpoint=$(echo $json | jq -r .peer.endpoint)

    cat << EOF > "frkn-$country.conf"
[Interface]
Address = $iface_address
DNS = $iface_dns
PrivateKey = $iface_privkey

[Peer]
PublicKey = $peer_pubkey
PresharedKey = $peer_psk
AllowedIPs = $peer_allowed_ips
Endpoint = $peer_endpoint
PersistentKeepalive = 25
EOF

done

sudo cp frkn-*.conf /etc/wireguard/

[ $? = 0 ] && {
    echo
    success "Wireguard + FRKN installed!"
    wg --version
    info "Use 'wg-quick (up|down) frkn-($(implode '|' ${countries[@]}))' to control connections"
    info "Use 'sudo wg show' to see connection status"
}