#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""test_upgrade_bench.py — the test bench's two night-of-2026-09-23 faults (R-653, R-656). No Docker.

    python3 scripts/test_upgrade_bench.py
"""
import importlib.util
import os
import shutil
import tempfile
import unittest

HERE = os.path.dirname(os.path.abspath(__file__))
spec = importlib.util.spec_from_file_location("upgrade_test_mod", os.path.join(HERE, "upgrade-test.py"))
ut = importlib.util.module_from_spec(spec)
spec.loader.exec_module(ut)


class LoadVerdict(unittest.TestCase):
    """R-653. RED-PROOF (REPORT.md): make load_verdict always return "reached" — the ghost case fails."""

    def test_every_request_errored_is_inconclusive(self):
        # ghost's first watch, 2026-09-23 night: 11 797 requests, all `err`
        self.assertEqual(ut.load_verdict(11797, {"err": 11797}), "inconclusive")

    def test_answers_of_any_code_are_the_app_answering(self):
        self.assertEqual(ut.load_verdict(11429, {"200": 5712, "401": 5717}), "reached")
        self.assertEqual(ut.load_verdict(10, {"302": 5, "err": 5}), "reached")

    def test_under_half_is_inconclusive_and_none_is_inconclusive(self):
        self.assertEqual(ut.load_verdict(10, {"200": 4, "err": 6}), "inconclusive")
        self.assertEqual(ut.load_verdict(0, {}), "inconclusive")


class ClearScratch(unittest.TestCase):
    """R-656. RED-PROOF (REPORT.md): make clear_scratch_folders return [] without removing — the first
    test fails with the last run's config still there."""

    def setUp(self):
        self.root = tempfile.mkdtemp(prefix="bench-scratch-")
        self.hdd = os.path.join(self.root, "hdd")
        self.env = {"HDD_PATH": self.hdd, "USERDATA_PATH": self.hdd + "/userdata"}
        self.said = []

    def tearDown(self):
        shutil.rmtree(self.root, ignore_errors=True)

    def plant(self, rel):
        p = os.path.join(self.hdd, rel, "config", "config.php")
        os.makedirs(os.path.dirname(p), exist_ok=True)
        open(p, "w").write("last run")
        return p

    def test_the_apps_own_folders_are_cleared_and_said(self):
        mine = self.plant("appdata/nextcloud")
        other = self.plant("appdata/immich")
        comp = "services:\n  nextcloud:\n    volumes:\n      - ${HDD_PATH}/appdata/nextcloud:/var/www/html\n"
        got = ut.clear_scratch_folders(comp, self.env, self.said.append)
        self.assertFalse(os.path.exists(mine), "the last run's files are still there")
        self.assertTrue(os.path.exists(other), "another app's folder was touched")
        self.assertEqual(len(got), 1)
        self.assertTrue(any("cleared before FROM" in s for s in self.said))

    def test_never_a_bare_root_never_outside(self):
        keep = self.plant("appdata/x")
        comp = ("    volumes:\n      - ${HDD_PATH}:/data\n      - ${HDD_PATH}/:/d2\n"
                "      - ${HDD_PATH}/../escape:/e\n")
        got = ut.clear_scratch_folders(comp, self.env, self.said.append)
        self.assertEqual(got, [])
        self.assertTrue(os.path.exists(keep))


class ChangedFiles(unittest.TestCase):
    """2026-09-30: a `files_may_change` mark names its files (R-734's method, now in the harness)."""

    def test_names_changed_added_removed_and_nothing_else(self):
        before = {"/d": {"a.txt": "1:aa", "b.txt": "1:bb", "gone": "1:cc"}}
        after = {"/d": {"a.txt": "1:aa", "b.txt": "2:bd", "new": "1:dd"}}
        self.assertEqual(ut.changed_files(before, after),
                         ["/d/b.txt (changed)", "/d/gone (removed)", "/d/new (added)"])
        self.assertEqual(ut.changed_files(before, before), [])


if __name__ == "__main__":
    unittest.main(verbosity=2)