#!/usr/bin/lua

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

cwriteln( '****************************************************************' );
cwriteln( ' Testing excludes'                                                );
cwriteln( '****************************************************************' );
cwriteln( ' (this test needs passwordless ssh localhost access '             );
cwriteln( '  for current user)'                                              );

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

writefile(cfgfile, [[
settings = {
	logfile = ']]..logfile..[[',
	nodaemon = true,
	delay = 3,
}

sync {
	default.rsyncssh,
	host = 'localhost',
	source = ']]..srcdir..[[',
	targetdir = ']]..trgdir..[[',
	exclude = {
		'erf',
		'/eaf',
		'erd/',
		'/ead/',
	},
}]]);

-- writes all files
local function writefiles()
	posix.mkdir(srcdir .. 'd');
	writefile(srcdir .. 'erf', 'erf');
	writefile(srcdir .. 'eaf', 'erf');
	writefile(srcdir .. 'erd', 'erd');
	writefile(srcdir .. 'ead', 'ead');
	writefile(srcdir .. 'd/erf', 'erf');
	writefile(srcdir .. 'd/eaf', 'erf');
	writefile(srcdir .. 'd/erd', 'erd');
	writefile(srcdir .. 'd/ead', 'ead');
end

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

-- test all files
local function testfiles()
	testfile( trgdir .. 'erf', false );
	testfile( trgdir .. 'eaf', false );
	testfile( trgdir .. 'erd', true );
	testfile( trgdir .. 'ead', true );
	testfile( trgdir .. 'd/erf', false );
	testfile( trgdir .. 'd/eaf', true );
	testfile( trgdir .. 'd/erd', true );
	testfile( trgdir .. 'd/ead', true );
end


cwriteln('testing startup excludes');
writefiles();
cwriteln('starting Lsyncd');
local pid = spawn('./lsyncd', cfgfile, unpack(log));
cwriteln('waiting for Lsyncd to start');
posix.sleep(10)
cwriteln('testing excludes after startup');
testfiles();
cwriteln('ok, removing sources');
if srcdir:sub(1,4) ~= '/tmp' then
	-- just to make sure before rm -rf
	cwriteln('exist before drama, srcdir is "', srcdir, '"');
	os.exit(1);
end

os.execute( 'rm -rf ' .. srcdir .. '/*' );
cwriteln( 'waiting for Lsyncd to remove destination' );
posix.sleep( 5 );

_, result, code = os.execute('diff -urN '..srcdir..' '..trgdir) ~= 0

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( 15 );
testfiles( );

cwriteln( 'killing started Lsyncd' );
posix.kill( pid );
local _, exitmsg, lexitcode = posix.wait( lpid );
cwriteln( 'Exitcode of Lsyncd = ', exitmsg, ' ', lexitcode );
posix.sleep( 1 );

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

-- TODO remove temp