#!/bin/sh

# shellcheck disable=SC1090
. "$TESTLIB_PATH"

echo [STEP] Initialize two nodes

tinc foo <<EOF
init foo
set DeviceType dummy
set Port 30060
set Address localhost
add Subnet 10.98.98.1
set PingTimeout 2
EOF

tinc bar <<EOF
init bar
set DeviceType dummy
set Port 0
add Subnet 10.98.98.2
set PingTimeout 2
set MaxTimeout 2
EOF

echo [STEP] Exchange host config files

tinc foo export | tinc bar exchange | tinc foo import
tinc bar add ConnectTo foo

echo [STEP] Foo 1.1, bar 1.0

tinc bar set ExperimentalProtocol no
tinc foo del bar.Ed25519PublicKey
tinc bar del foo.Ed25519PublicKey

create_script foo hosts/bar-up
create_script bar hosts/foo-up

start_tinc foo
start_tinc bar

wait_script foo hosts/bar-up
wait_script bar hosts/foo-up

require_nodes foo 2
require_nodes bar 2

tinc bar stop
tinc foo stop

test -z "$(tinc foo get bar.Ed25519PublicKey)"
test -z "$(tinc bar get foo.Ed25519PublicKey)"

echo [STEP] Foo 1.1, bar upgrades to 1.1

tinc bar del ExperimentalProtocol

start_tinc foo
start_tinc bar

wait_script foo hosts/bar-up
wait_script bar hosts/foo-up

require_nodes foo 2
require_nodes bar 2

tinc bar stop
tinc foo stop

test -n "$(tinc foo get bar.Ed25519PublicKey)"
test -n "$(tinc bar get foo.Ed25519PublicKey)"

echo [STEP] Bar downgrades, must no longer be allowed to connect

tinc bar set ExperimentalProtocol no

create_script foo subnet-up
start_tinc foo
wait_script foo subnet-up

create_script bar subnet-up
start_tinc bar
wait_script bar subnet-up

# There is no reliable way to wait for 'not connecting'.
sleep 10

require_nodes foo 1
require_nodes bar 1