// we use 5 as the partition key value through out the test
// so setting the corresponding shard here is useful
setup
{
	SET citus.shard_count TO 8;
	SET citus.shard_replication_factor TO 1;
	CREATE TABLE test_move_placement (x int, y int);
	SELECT create_distributed_table('test_move_placement', 'x');

	SELECT get_shard_id_for_distribution_column('test_move_placement', 5) INTO selected_shard;
}

teardown
{
	DROP TABLE test_move_placement;
	DROP TABLE selected_shard;
}

session "s1"

step "s1-begin"
{
    BEGIN;
    -- the tests are written with the logic where single shard SELECTs
    -- do not to open transaction blocks
    SET citus.select_opens_transaction_block TO false;
}

// since test_move_placement has rep > 1 simple select query doesn't hit all placements
// hence not all placements are cached
step "s1-load-cache"
{
	TRUNCATE test_move_placement;
}

step "s1-insert"
{
	INSERT INTO test_move_placement VALUES (5, 10);
}

step "s1-update"
{
	UPDATE test_move_placement SET y = 5 WHERE x = 5;
}

step "s1-delete"
{
	DELETE FROM test_move_placement WHERE x = 5;
}

step "s1-select"
{
	SELECT count(*) FROM test_move_placement WHERE x = 5;
}

step "s1-ddl"
{
	CREATE INDEX test_move_placement_index ON test_move_placement(x);
}

step "s1-copy"
{
	COPY test_move_placement FROM PROGRAM 'echo "1,1\n2,2\n3,3\n4,4\n5,5"' WITH CSV;
}

step "s1-commit"
{
	COMMIT;
}

session "s2"

step "s2-begin"
{
	BEGIN;
}


step "s2-move-placement"
{
	SELECT master_move_shard_placement((SELECT * FROM selected_shard), 'localhost', 57638, 'localhost', 57637, 'force_logical');
}

step "s2-commit"
{
	COMMIT;
}

step "s2-print-content"
{
	SELECT
		nodeport, success, result
	FROM
		run_command_on_placements('test_move_placement', 'select y from %s WHERE x = 5')
	WHERE
		shardid IN (SELECT * FROM selected_shard)
	ORDER BY
		nodeport;
}

step "s2-print-index-count"
{
	SELECT
		nodeport, success, result
	FROM
		run_command_on_placements('test_move_placement', 'select count(*) from pg_indexes WHERE tablename = ''%s''')
	ORDER BY
		nodeport;
}

step "s2-print-placements"
{
	SELECT
		nodename, nodeport, count(*)
	FROM
		pg_dist_shard_placement
	WHERE
		shardid IN (SELECT shardid FROM pg_dist_shard WHERE logicalrelid = 'test_move_placement'::regclass)
	AND
		shardstate = 1
	GROUP BY
		nodename, nodeport;
}

// move a placement while concurrently performing an update/delete/insert/copy
// note that at some points we use "s1-select" just after "s1-begin" given that BEGIN
// may invalidate cache at certain cases
permutation "s1-load-cache" "s1-insert" "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-update" "s2-commit" "s1-commit" "s2-print-content" "s2-print-placements"
permutation "s1-load-cache" "s1-insert" "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-delete" "s2-commit" "s1-commit" "s2-print-content" "s2-print-placements"
permutation "s1-load-cache" "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-insert" "s2-commit" "s1-commit" "s2-print-content" "s2-print-placements"
permutation "s1-load-cache" "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-copy" "s2-commit" "s1-commit" "s2-print-content" "s2-print-placements"
permutation "s1-load-cache" "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-ddl" "s2-commit" "s1-commit" "s2-print-index-count" "s2-print-placements"


// the same tests without loading the cache at first
permutation "s1-insert" "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-update" "s2-commit" "s1-commit" "s2-print-content" "s2-print-placements"
permutation "s1-insert" "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-delete" "s2-commit" "s1-commit" "s2-print-content" "s2-print-placements"
permutation "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-insert" "s2-commit" "s1-commit" "s2-print-content" "s2-print-placements"
permutation "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-copy" "s2-commit" "s1-commit" "s2-print-content" "s2-print-placements"
permutation "s1-begin" "s1-select" "s2-begin" "s2-move-placement" "s1-ddl" "s2-commit" "s1-commit" "s2-print-index-count" "s2-print-placements"