#!/bin/sh
# 
# **********
# test_1_pgbench_no_node1
#
# 	This test script creates a standalone pgbench database 
#	as slony_test1 and then:
#
#	- initializes a primary node and starts the node daemon
#	- creates a set containing all 4 pgbench tables
#	- creates a second database as slony_test2
#	- adds database slony_test2 to the system
#	- starts the second replication daemon
#	- creates the pgbench tables (schema only)
#	- subscribes the replication set from the primary node
#
#  The point to this test is to validate that you do not need to
#  have a node #1 configured
# **********

TERMPROG=xterm
WHICHPROG=which

export PATH
TMPOUT=/tmp/output.$$
DB1=slony_test1
DB2=slony_test2

PGBENCH_SCALE=1
PGBENCH_CLIENTS=5
PGBENCH_TRANS=`expr 30000 / $PGBENCH_CLIENTS`

trap '
	echo ""
	echo "**** user abort"
	if [ ! -z $pgbench_pid ] ; then
		echo "**** killing pgbench"
		kill -15 $pgbench_pid
	fi
	if [ ! -z $slon1_pid ] ; then
		echo "**** killing node daemon 1"
		kill -15 $slon1_pid
	fi
	if [ ! -z $slon2_pid ] ; then
		echo "**** killing node daemon 2"
		kill -15 $slon2_pid
	fi
	exit 1
' 2 15

######################################################################
# Preparations ... create a standalone pgbench database and
# have the "application" (pgbench) running.
######################################################################

#####
# Make sure the install is up to date
#####
WGM=`$WHICHPROG gmake`
if [ -z $WGM ] ; then
    MAKE=make
    CGNU=`make -v | grep GNU`
    if [ -z "$CGNU" ] ; then
	echo "GNU Make not found - please install GNU Make"
	exit 1
    fi
else
    MAKE=gmake
fi
echo -n "**** running 'make install' in src directory ... "
if ! ${MAKE} -C .. install >$TMPOUT 2>&1 ; then
    echo "failed"; cat $TMPOUT; rm $TMPOUT; exit 1
fi
echo "done"
rm $TMPOUT

#####
# Remove old databases, if they exist
#####
echo "**** remove old test databases"
dropdb $DB1 || echo "**** ignored"
sleep 1
dropdb $DB2 || echo "**** ignored"
sleep 1

#####
# Create the "Primary Node"
#####
echo "**** creating database for Node 11"

createdb $DB1 || exit 1
pgbench -i -s $PGBENCH_SCALE $DB1
pg_dump -s $DB1 >pgbench_schema.sql

#####
# Start pgbench in the background and give it rampup time
#####
pgbench -n -s $PGBENCH_SCALE -c $PGBENCH_CLIENTS -t $PGBENCH_TRANS $DB1 &
pgbench_pid=$!
echo "**** pgbench is running in background with pid $pgbench_pid"
echo -n "**** sleeping 10 seconds to give pgbench time for rampup ... "
sleep 10
echo "done"

echo ""
echo "**********************************************************************"
echo "**** $DB1 is now a standalone database with a running pgbench"
echo "**********************************************************************"
echo ""

######################################################################
# Setup DB1 as the primary cluster T1 node, start the node daemon,
# and create a replication set containing the pgbench tables.
######################################################################

echo "**** initializing $DB1 as Primary Node for Slony-I cluster T1"
slonik <<_EOF_
	cluster name = T1;
	node 11 admin conninfo = 'dbname=$DB1';
	node 22 admin conninfo = 'dbname=$DB2';
	init cluster (id = 11, comment = 'Node 11');
	echo 'Database $DB1 initialized as Node 11';
_EOF_
if [ $? -ne 0 ] ; then
	kill $pgbench_pid;
	exit 1
fi

echo "**** starting the Slony-I node daemon for $DB1"
$TERMPROG -title "Slon node 11" -e sh -c "slon -d2 -s500 -g10 T1 dbname=$DB1; echo -n 'Enter>'; read line" &
slon1_pid=$!
echo "slon[$slon1_pid] on dbname=$DB1"

echo "**** creating a replication set containing the 4 pgbench tables ... "
slonik <<_EOF_
	cluster name = T1;
	node 11 admin conninfo = 'dbname=$DB1';
	node 22 admin conninfo = 'dbname=$DB2';

	try {
		table add key (node id = 11, fully qualified name = 'public.history');
	}
	on error {
		exit 1;
	}

	try {
		create set (id = 1, origin = 11, comment = 'Set 1 - pgbench tables');
		set add table (set id = 1, origin = 11,
			id = 1, fully qualified name = 'public.accounts',
			comment = 'Table accounts');
		set add table (set id = 1, origin = 11,
			id = 2, fully qualified name = 'public.branches',
			comment = 'Table branches');
		set add table (set id = 1, origin = 11,
			id = 3, fully qualified name = 'public.tellers',
			comment = 'Table tellers');
		set add table (set id = 1, origin = 11,
			id = 4, fully qualified name = 'public.history',
			key = serial, comment = 'Table accounts');
	}
	on error {
		exit 1;
	}
_EOF_

if [ $? -ne 0 ] ; then
	echo "failed"
	kill $pgbench_pid 2>/dev/null
	kill $slon1_pid 2>/dev/null
	cat $TMPOUT
	rm $TMPOUT
	exit 1
fi
echo "**** set created"

#####
# Check that pgbench is still running
#####
if ! kill -0 $pgbench_pid 2>/dev/null ; then
	echo "**** pgbench terminated ???"
	kill $slon1_pid 2>/dev/null
	exit 1
fi

echo ""
echo "**********************************************************************"
echo "**** $DB1 is now the Slony-I origin for set 1"
echo "**********************************************************************"
echo ""

######################################################################
# Setup DB2 as a subscriber node and let it subscribe the replication
# set of the running pgbench
######################################################################
echo "**** creating database for node 22"
if ! createdb $DB2 ; then
	kill $pgbench_pid 2>/dev/null
	kill $slon1_pid 2>/dev/null
	exit 1
fi

echo "**** initializing $DB2 as node 22 of Slony-I cluster T1"
slonik <<_EOF_
	cluster name = T1;
	node 1 admin conninfo = 'dbname=nothing';
	node 11 admin conninfo = 'dbname=$DB1';
	node 22 admin conninfo = 'dbname=$DB2';
	echo 'Creating node 22';
	try {
		store node (id = 22, comment = 'node 22', event node = 11);
        } on error {
	    echo 'could not establish node 22';
	    exit -1;
	}
	try {
		store path (server = 11, client = 22, conninfo = 'dbname=$DB1');
		store path (server = 22, client = 11, conninfo = 'dbname=$DB2');
	}
	on error { 
	    echo 'could not establish paths between 11 and 22';
	    exit -1; 
	}
	echo 'Database $DB2 added as node 22';
_EOF_
if [ $? -ne 0 ] ; then
	kill $pgbench_pid 2>/dev/null
	kill $slon1_pid 2>/dev/null
	exit 1
fi

echo "**** starting the Slony-I node daemon for $DB1"
$TERMPROG -title "Slon node 22" -e sh -c "slon -d2 -s10000 -o10000 -g10 T1 dbname=$DB2; echo -n 'Enter>'; read line" &
slon2_pid=$!
echo "slon[$slon2_pid] on dbname=$DB2"

#####
# Check that pgbench is still running
#####
if ! kill -0 $pgbench_pid 2>/dev/null ; then
	echo "**** pgbench terminated ???"
	kill $slon1_pid 2>/dev/null
	exit 1
fi

######################################################################
# And now comes the moment where the big elephant starts to pee
# and the attendants in the first row climb on their chairs ...
######################################################################
echo "**** creating pgbench tables and subscribing node 22 to set 1"
(
	cat pgbench_schema.sql
) | psql -q $DB2
slonik <<_EOF_
	cluster name = T1;
	node 11 admin conninfo = 'dbname=$DB1';
	node 22 admin conninfo = 'dbname=$DB2';

	subscribe set ( id = 1, provider = 11, receiver = 22, forward = yes );
_EOF_

echo ""
echo "**********************************************************************"
echo "**** $DB2 should now be copying data and attempting to catch up."
echo "**********************************************************************"
echo ""

echo -n "**** waiting for pgbench to finish "
while kill -0 $pgbench_pid 2>/dev/null ; do
	echo -n "."
	sleep 10
done
echo "**** pgbench finished"
echo "**** please terminate the replication engines when cought up."
wait $slon1_pid
wait $slon2_pid

kill $pgbench_pid 2>/dev/null
kill $slon1_pid 2>/dev/null
kill $slon2_pid 2>/dev/null

./compare_pgbench_dumps $DB1 $DB2