require( 'posix' )
dofile( 'tests/testlib.lua' )

cwriteln( '****************************************************************' )
cwriteln( ' Testing filters (rsync)' )
cwriteln( '****************************************************************' )

local tdir, srcdir, trgdir = mktemps( )
local logfile = tdir .. "log"
local cfgfile = tdir .. "config.lua"
local range = 5
local log = {"-log", "all"}

writefile(cfgfile, [[
settings {
	logfile = ']]..logfile..[[',
	nodaemon = true,
}

sync {
	default.rsync,
	source = ']]..srcdir..[[',
	target = ']]..trgdir..[[',
	delay = 3,
	filter = {
		'- /ab**',
		'+ /a**',
		'- /**',
	},
}]])

-- writes all files
local function writefiles
( )
	writefile( srcdir .. 'abc', 'abc' )
	writefile( srcdir .. 'acc', 'acc' )
	writefile( srcdir .. 'baa', 'baa' )
	posix.mkdir( srcdir .. 'abx' )
	writefile( srcdir .. 'abx/a', 'abxa' )
	posix.mkdir( srcdir .. 'acx' )
	writefile( srcdir .. 'acx/x', 'acxx' )
end

--
-- Tests if the filename exists
-- fails if this is different to expect.
--
local function testfile
(
	filename,
	expect
)
	local stat, err = posix.stat( filename )

	if stat and not expect
	then
		cwriteln( 'failure: ', filename, ' should be filtered')

		os.exit( 1 )
	end

	if not stat and expect
	then
		cwriteln( 'failure: ', filename, ' should not be filtered' )
		os.exit( 1 )
	end
end

-- test all files
local function testfiles
( )
	testfile( trgdir .. 'abc', false )
	testfile( trgdir .. 'acc', true )
	testfile( trgdir .. 'baa', false )
	testfile( trgdir .. 'abx/a', false )
	testfile( trgdir .. 'acx/x', true )
end


cwriteln( 'testing startup filters' )

writefiles( )

cwriteln( 'starting Lsyncd' )

local pid = spawn( './lsyncd', cfgfile, '-log', 'all' )

cwriteln( 'waiting for Lsyncd to start' )

posix.sleep( 3 )

cwriteln( 'testing filters after startup' )

testfiles( )

cwriteln( 'ok, removing sources' )

if srcdir:sub( 1,4 ) ~= '/tmp'
then
	-- just to make sure before rm -rf
	cwriteln( 'exit before drama, srcdir is "', srcdir, '"' )

	os.exit( 1 )
end

os.execute( 'rm -rf '..srcdir..'/*' )

cwriteln( 'waiting for Lsyncd to remove destination' )

posix.sleep( 5 )

local result, code = execute( 'diff -urN ' .. srcdir .. ' ' .. trgdir )

if result ~= 'exit' or code ~= 0
then
	cwriteln( 'fail, target directory not empty!' )

	os.exit( 1 )
end

cwriteln( 'writing files after startup' )

writefiles( )

cwriteln( 'waiting for Lsyncd to transmit changes' )

posix.sleep( 5 )

testfiles( )

cwriteln( 'killing started Lsyncd' )

posix.kill( pid )
local _, exitmsg, exitcode = posix.wait( pid )

cwriteln( 'Exitcode of Lsyncd = ', exitmsg, ' ', exitcode );

if exitcode == 143
then
	cwriteln( 'OK' )
	os.exit( 0 )
else
	os.exit( 1 )
end

-- TODO remove temp