import json
from pathlib import Path
import tempfile
import unittest
import sys
sys.path.insert(0,str(Path(__file__).resolve().parents[1]/'scripts'))
from sync import sync

class SyncTest(unittest.TestCase):
    def test_filter_update_delete_and_invalid_input(self):
        with tempfile.TemporaryDirectory() as d:
            base=Path(d)
            src=base/'source'; dst=base/'output'
            for rel in ['cve/2016/old.json','cve/2025/current.json','usn/USN-1.json']:
                p=src/rel;p.parent.mkdir(parents=True,exist_ok=True);p.write_text(json.dumps({'id':rel}))
            st=sync(src,dst,2017)
            self.assertEqual(st['files'],2)
            self.assertFalse((dst/'cve/2016/old.json').exists())
            self.assertEqual(sync(src,dst,2017)['updated'],0)
            (src/'cve/2025/current.json').unlink()
            st=sync(src,dst,2017)
            self.assertEqual(st['removed'],1)
            bad=src/'cve/2026/bad.json';bad.parent.mkdir(parents=True,exist_ok=True);bad.write_text('not-json')
            with self.assertRaises(ValueError):sync(src,dst,2017)
            self.assertTrue((dst/'usn/USN-1.json').exists())
if __name__=='__main__':unittest.main()