import importlib.util
from pathlib import Path
import sqlite3,tempfile,unittest
ROOT=Path(__file__).resolve().parents[1]
spec=importlib.util.spec_from_file_location('app_deploy',ROOT/'commissioning/deploy_application.py');d=importlib.util.module_from_spec(spec);spec.loader.exec_module(d)
class ApplicationDeploymentTest(unittest.TestCase):
    def test_backup_consistent_and_original_not_changed(self):
        with tempfile.TemporaryDirectory() as tmp:
            src=Path(tmp)/'source.sqlite';out=Path(tmp)/'backup.sqlite'
            with sqlite3.connect(src) as c:c.execute('CREATE TABLE sample(value)');c.execute('INSERT INTO sample VALUES(3)')
            before=src.read_bytes();d.backup_database(src,out)
            with sqlite3.connect(out) as c:self.assertEqual(c.execute('SELECT value FROM sample').fetchone()[0],3)
            self.assertEqual(before,src.read_bytes())
    def test_backup_cannot_invent_missing_database(self):
        with tempfile.TemporaryDirectory() as tmp:
            with self.assertRaises(ValueError):d.backup_database(Path(tmp)/'missing.sqlite',Path(tmp)/'new.sqlite')
    def test_atomic_refuses_symlink(self):
        with tempfile.TemporaryDirectory() as tmp:
            a=Path(tmp)/'a';b=Path(tmp)/'b';a.write_text('original');b.symlink_to(a)
            with self.assertRaises(ValueError):d.atomic(b,b'changed')
            self.assertEqual(a.read_text(),'original')
    def test_only_two_reviewed_portal_files(self):
        self.assertEqual(set(d.PORTAL_FILES.values()),{'netplan-v4-bridge.mjs','public/netplan-v4.js'})
    def test_build_tests_backup_before_runtime_replacement(self):
        s=(ROOT/'commissioning/deploy_application.py').read_text()
        self.assertLess(s.index("'target_python_and_portal_tests_passed'"),s.index('v4_replaced=True'))
        self.assertLess(s.index("'consistent_database_backup'"),s.index('v4_replaced=True'))
    def test_does_not_change_optimizer_or_device_permissions(self):
        self.assertNotIn('/settings',d.BOOTSTRAP)
        self.assertNotIn('trial/arm',d.BOOTSTRAP)
        self.assertNotIn('IPS_',d.BOOTSTRAP)
        self.assertIn("state['liveEnabled'] is False",d.BOOTSTRAP)
    def test_image_contains_application_installer_imported_by_tests(self):
        self.assertIn('COPY commissioning/deploy_application.py ./commissioning/deploy_application.py',(ROOT/'Dockerfile').read_text())
    def test_file_bind_mount_recreated_not_only_restarted(self):
        s=(ROOT/'commissioning/deploy_application.py').read_text()
        self.assertIn("'--force-recreate','--wait','license-portal'",s)
        self.assertIn('additive_data_retained',s)
if __name__=='__main__':unittest.main()