#!/bin/sh

# Skip this test if the legacy protocol is disabled
if grep -q "define DISABLE_LEGACY 1" "${0%/*}/../config.h"; then
	exit 77
fi

. "${0%/*}/testlib.sh"

# Initialize two nodes

$tinc $c1 <<EOF
init foo
set DeviceType dummy
set Port 32753
set Address localhost
set PingTimeout 1
EOF

$tinc $c2 <<EOF
init bar
set DeviceType dummy
set Port 0
set PingTimeout 1
set MaxTimeout 1
EOF

# Exchange host config files

$tinc $c1 export | $tinc $c2 exchange | $tinc $c1 import
$tinc $c2 add ConnectTo foo

# Foo 1.1, bar 1.0

$tinc $c2 set ExperimentalProtocol no
$tinc $c1 del bar.Ed25519PublicKey
$tinc $c2 del foo.Ed25519PublicKey

$tinc $c1 start $r1
$tinc $c2 start $r2

sleep 1

test `$tinc $c1 dump reachable nodes | wc -l` = 2
test `$tinc $c2 dump reachable nodes | wc -l` = 2

$tinc $c2 stop
$tinc $c1 stop

test -z "`$tinc $c1 get bar.Ed25519PublicKey`"
test -z "`$tinc $c2 get foo.Ed25519PublicKey`"

# Foo 1.1, bar upgrades to 1.1

$tinc $c2 del ExperimentalProtocol

$tinc $c1 start $r1
$tinc $c2 start $r2

sleep 5

test `$tinc $c1 dump reachable nodes | wc -l` = 2
test `$tinc $c2 dump reachable nodes | wc -l` = 2

$tinc $c2 stop
$tinc $c1 stop

test -n "`$tinc $c1 get bar.Ed25519PublicKey`"
test -n "`$tinc $c2 get foo.Ed25519PublicKey`"

# Bar downgrades, must no longer be allowed to connect

$tinc $c2 set ExperimentalProtocol no

$tinc $c1 start $r1
$tinc $c2 start $r2

sleep 1

test `$tinc $c1 dump reachable nodes | wc -l` = 1
test `$tinc $c2 dump reachable nodes | wc -l` = 1

$tinc $c2 stop
$tinc $c1 stop