#!/bin/bash
#
# Copyright (C) - 2012 Christian Babeux <christian.babeux@efficios.com>
#                      David Goulet <dgoulet@efficios.com>
#
# This library is free software; you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; version 2.1 of the License.
#
# This library is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
TEST_DESC="Streaming - URI switching"

CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../..
BIN_NAME="gen-ust-events"
SESSION_NAME="stream"
EVENT_NAME="tp:tptest"
PID_RELAYD=0

TRACE_PATH=$(mktemp -d)

NUM_TESTS=186

source $TESTDIR/utils/utils.sh

print_test_banner "$TEST_DESC"

if [ ! -x "$CURDIR/$BIN_NAME" ]; then
	BAIL_OUT "No UST nevents binary detected. Skipping."
fi

function lttng_create_session
{
	URI=$1
	# Create session with custom URI
	$TESTDIR/../src/bin/lttng/$LTTNG_BIN create -U $URI $SESSION_NAME >/dev/null 2>&1
	ok $? "Create session with uri $URI"
}

function lttng_enable_consumer
{
	URI=$1
	# Create session with custom URI
	$TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-consumer -u $URI >/dev/null 2>&1
	ok $? "Enable consumer with uri $URI"
}

function run_apps
{
    # Run 5 times with a 1 second delay
    COUNT=5
    APP_DELAY=1000000
    ./$CURDIR/$BIN_NAME $COUNT $APP_DELAY >/dev/null 2>&1 &
}

function wait_apps
{
	while [ -n "$(pidof $BIN_NAME)" ]; do
		sleep 0.5
	done
	pass "Wait for applications to end"
}

function test_uri_switch_localhost_folder
{
	IPVER=$1

	diag "Test switch of localhost folder ($IPVER)"

	if [ "$IPVER" == "IPv6" ]; then
	    BASE_URI="net6://localhost"
	else
	    BASE_URI="net://localhost"
	fi

	RANDCOUNT=10
	RAND=""
	i=1

	lttng_create_session $BASE_URI

	while [ "$i" -le $RANDCOUNT ]
	do
	    RAND=$(randstring 16 0)
	    lttng_enable_consumer "$BASE_URI/$RAND"
	    let "i += 1"
	done

	pass "Randomize output folder on $BASE_URI"

	enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
	start_lttng_tracing $SESSION_NAME
	run_apps
	wait_apps
	stop_lttng_tracing $SESSION_NAME
	destroy_lttng_session $SESSION_NAME
	validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$RAND

	if [ $? -eq 0 ]; then
		# Only delete if successful
		rm -rf $TRACE_PATH
	fi
}

function test_uri_switch_file_network
{
	IPVER=$1

	diag "Test switch file -> network ($IPVER)"

	TMP_PATH=$(mktemp -d)
	FILE_URI="file://$TMP_PATH"

	if [ "$IPVER" == "IPv6" ]; then
	    NETWORK_URIS=("net6://localhost" "net6://[::1]")
	else
	    NETWORK_URIS=("net://localhost" "net://127.0.0.1")
	fi

	NET_PATHS=("foo/bar" "OohEehOohAhAahTingTangWallaWallaBingBang" ".")

	for NETWORK_URI in ${NETWORK_URIS[@]};
	do
	    for NET_PATH in ${NET_PATHS[@]};
	    do
		SESSION_NAME=$(randstring 16 0)
		diag "$FILE_URI -> $NETWORK_URI/$NET_PATH"

		lttng_create_session $FILE_URI
		lttng_enable_consumer "$NETWORK_URI/$NET_PATH"
		enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
		start_lttng_tracing $SESSION_NAME
		run_apps
		wait_apps
		stop_lttng_tracing $SESSION_NAME
		destroy_lttng_session $SESSION_NAME
		validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$NET_PATH

		if [ $? -eq 0 ]; then
		# Only delete if successful
		    rm -rf $TRACE_PATH
		else
		    break
		fi
	    done
	done
	rm -rf $TMP_PATH
}

function test_uri_switch_network_file
{
	IPVER=$1
	diag "Test switch network ($IPVER) -> file"

	if [ "$IPVER" == "IPv6" ]; then
	    NETWORK_URI="net6://localhost"
	else
	    NETWORK_URI="net://localhost"
	fi

	FILE_PATHS=("." "foo/bar" "42")

	for FILE_PATH in ${FILE_PATHS[@]};
	do
	    TMP_PATH=$(mktemp -d)
	    FILE_URI="file://$TMP_PATH"
	    SESSION_NAME=$(randstring 16 0)

	    diag "$NETWORK_URI -> $FILE_URI/$FILE_PATH"

	    lttng_create_session $NETWORK_URI
	    lttng_enable_consumer "$FILE_URI/$FILE_PATH"
	    enable_ust_lttng_event $SESSION_NAME $EVENT_NAME
	    start_lttng_tracing $SESSION_NAME
	    run_apps
	    wait_apps
	    stop_lttng_tracing $SESSION_NAME
	    destroy_lttng_session $SESSION_NAME
	    validate_trace $EVENT_NAME $TMP_PATH/$FILE_PATH

	    if [ $? -eq 0 ]; then
			# Only delete if successful
			rm -rf $TMP_PATH
	    else
			break
	    fi
	done
}

plan_tests $NUM_TESTS

start_lttng_sessiond

diag "Test with IPv4"
start_lttng_relayd "-o $TRACE_PATH"
test_uri_switch_localhost_folder "IPv4"
test_uri_switch_file_network "IPv4"
test_uri_switch_network_file "IPv4"
stop_lttng_relayd

diag "Test with IPv6"
start_lttng_relayd "-o $TRACE_PATH -C tcp6://localhost:5342 -D tcp6://localhost:5343"
test_uri_switch_localhost_folder "IPv6"
test_uri_switch_file_network "IPv6"
test_uri_switch_network_file "IPv6"
stop_lttng_relayd

stop_lttng_sessiond