#!/usr/bin/env python3
"""Offline regressions for the weekly image survey's false-current cases."""

import importlib.util
import pathlib
import unittest
from unittest import mock

HERE = pathlib.Path(__file__).resolve().parent
spec = importlib.util.spec_from_file_location("resolve_images", HERE / "resolve-images.py")
resolver = importlib.util.module_from_spec(spec)
spec.loader.exec_module(resolver)


class TestResolverCoverage(unittest.TestCase):
    def test_cryptpad_calver_tag_is_found_independently_of_abra(self):
        with mock.patch.object(resolver, "list_tags", return_value=(
            ["version-2026.5.1", "version-2026.10.0", "opendesk-2026.08.04"], None)):
            row = resolver.resolve("cryptpad/cryptpad:version-2026.5.1")
        self.assertTrue(row["upgrade_available"])
        self.assertEqual(row["newest_same_shape"], "version-2026.10.0")

    def test_floating_and_templated_tags_cannot_prove_current(self):
        with mock.patch.object(resolver, "list_tags", return_value=(["alpine", "1.2.3"], None)):
            floating = resolver.resolve("atmoz/sftp:alpine")
        templated = resolver.resolve("ghost:${IMAGE_VERSION}-alpine")
        self.assertTrue(floating["status"].startswith("unverifiable:"))
        self.assertTrue(templated["status"].startswith("skipped:"))

    def test_truncated_registry_listing_cannot_prove_current(self):
        with mock.patch.object(resolver, "list_tags", return_value=(["1.2.3"], None)):
            with mock.patch.object(resolver, "_HUB_TRUNCATED", {"library/example"}):
                row = resolver.resolve("example:1.2.3")
        self.assertTrue(row["status"].startswith("unverifiable:"))

    def test_huge_ghcr_listing_uses_only_published_release_manifests(self):
        ref = "ghcr.io/immich-app/immich-machine-learning:v3.3.5"
        with mock.patch.object(resolver, "list_tags", return_value=([], "RuntimeError: tag listing truncated")), \
             mock.patch.object(resolver, "github_release_tags",
                               return_value=["v3.3.6", "v3.3.5"]), \
             mock.patch.object(resolver, "_oci_tag_exists", side_effect=lambda h, r, t: t == "v3.3.5"):
            row = resolver.resolve(ref)
        self.assertEqual(row["status"], "ok")
        self.assertFalse(row["upgrade_available"])  # release exists; image does not yet
        self.assertIn("registry-manifest", row["source"])
        with mock.patch.object(resolver, "list_tags", return_value=([], "RuntimeError: tag listing truncated")), \
             mock.patch.object(resolver, "github_release_tags",
                               return_value=["v3.3.6", "v3.3.5"]), \
             mock.patch.object(resolver, "_oci_tag_exists", return_value=True):
            upgraded = resolver.resolve(ref)
        self.assertTrue(upgraded["upgrade_available"])


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