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

class RedHatSyncTests(unittest.TestCase):
    def test_index_year_filter(self):
        data = b'2016/rhsa-2016_001.json\n2017/rhsa-2017_001.json\n2026/rhsa-2026_012.json\n'
        self.assertEqual(sync.valid_paths(data, 2017), ['2017/rhsa-2017_001.json', '2026/rhsa-2026_012.json'])

    def test_changes_csv(self):
        items = {'2025/rhsa-2025_012.json'}
        self.assertEqual(sync.extract_changed(b'url,info\nhttps://example.test/2025/rhsa-2025_012.json,updated\n', items), items)

    def test_first_sync_and_second_no_change(self):
        with tempfile.TemporaryDirectory() as d:
            idx = b'2026/rhsa-2026_001.json\n'
            doc = b'{"document":{"title":"RHSA"}}'
            def fetch(url):
                if url.endswith('index.txt'): return idx
                if url.endswith('.csv'): return b''
                return doc
            with patch.object(sync, 'get', side_effect=fetch):
                sync.sync(d, 2017, rotate=1)
                sync.sync(d, 2017, rotate=1)
            self.assertEqual((Path(d)/'data/csaf/2026/rhsa-2026_001.json').read_bytes(), doc)

if __name__ == '__main__':
    unittest.main()