#!/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);
if os.execute('diff -urN '..srcdir..' '..trgdir) ~= 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