"""Unit tests for scripts/ci/notify_failure.py."""

import http
from unittest.mock import MagicMock, patch

from click.testing import CliRunner

from gitea_runner_manager.exceptions import APIError
from scripts.ci.notify_failure import main
from scripts.gitea_cli import TeaCLIError


class TestNotifyFailure:
    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
    @patch("scripts.ci.notify_failure.shutil.which", return_value="/usr/bin/tea")
    @patch("scripts.gitea_cli.TeaCLI")
    def test_creates_issue_with_tea(self, mock_tea_cls: MagicMock, mock_which: MagicMock) -> None:
        mock_tea = MagicMock()
        mock_tea.list_labels.return_value = [{"id": 5, "name": "bug"}]
        mock_tea.create_issue.return_value = {"index": 42, "title": "test"}
        mock_tea_cls.return_value = mock_tea

        runner = CliRunner()
        result = runner.invoke(
            main,
            [
                "--repo",
                "owner/repo",
                "--run-id",
                "123",
                "--workflow",
                "release",
                "--commit",
                "abc123def456",
            ],
        )
        assert result.exit_code == 0
        assert "issue #42" in result.output
        mock_tea.create_issue.assert_called_once()
        mock_tea.add_label.assert_called_once_with("owner/repo", 42, ["bug"])

    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
    @patch("scripts.ci.notify_failure.shutil.which", return_value="/usr/bin/tea")
    @patch("scripts.gitea_cli.TeaCLI")
    def test_tea_creates_issue_without_bug_label(self, mock_tea_cls: MagicMock, mock_which: MagicMock) -> None:
        mock_tea = MagicMock()
        mock_tea.list_labels.return_value = [{"id": 1, "name": "enhancement"}]
        mock_tea.create_issue.return_value = {"index": 43, "title": "test"}
        mock_tea_cls.return_value = mock_tea

        runner = CliRunner()
        result = runner.invoke(
            main,
            ["--repo", "owner/repo", "--run-id", "124", "--workflow", "publish", "--commit", "def789"],
        )
        assert result.exit_code == 0
        assert "issue #43" in result.output
        mock_tea.add_label.assert_not_called()

    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
    @patch("scripts.ci.notify_failure.shutil.which", return_value="/usr/bin/tea")
    @patch("scripts.gitea_cli.TeaCLI")
    def test_tea_error_falls_back_to_client(self, mock_tea_cls: MagicMock, mock_which: MagicMock) -> None:
        """When tea fails, fall back to GiteaClient."""
        mock_tea = MagicMock()
        mock_tea.list_labels.side_effect = TeaCLIError("network error")
        mock_tea.create_issue.side_effect = TeaCLIError("network error")
        mock_tea_cls.return_value = mock_tea

        with patch("scripts.ci.notify_failure.GiteaClient") as mock_client_cls:
            mock_client = MagicMock()
            mock_client.list_labels.return_value = [{"id": 5, "name": "bug"}]
            mock_client.create_issue.return_value = {"id": 50}
            mock_client_cls.return_value = mock_client

            runner = CliRunner()
            result = runner.invoke(
                main,
                ["--repo", "owner/repo", "--run-id", "125", "--workflow", "release", "--commit", "abc"],
            )
        assert result.exit_code == 0
        assert "issue #50" in result.output
        mock_client.create_issue.assert_called_once()

    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
    @patch("scripts.ci.notify_failure.shutil.which", return_value=None)
    @patch("scripts.ci.notify_failure.GiteaClient")
    def test_tea_not_installed_uses_client(self, mock_client_cls: MagicMock, mock_which: MagicMock) -> None:
        """When tea is not installed, use GiteaClient directly."""
        mock_client = MagicMock()
        mock_client.list_labels.return_value = [{"id": 5, "name": "bug"}]
        mock_client.create_issue.return_value = {"id": 51}
        mock_client_cls.return_value = mock_client

        runner = CliRunner()
        result = runner.invoke(
            main,
            ["--repo", "owner/repo", "--run-id", "126", "--workflow", "release", "--commit", "abc"],
        )
        assert result.exit_code == 0
        assert "issue #51" in result.output
        mock_client.create_issue.assert_called_once()

    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
    @patch("scripts.ci.notify_failure.shutil.which", return_value=None)
    @patch("scripts.ci.notify_failure.GiteaClient")
    def test_client_api_error_raises(self, mock_client_cls: MagicMock, mock_which: MagicMock) -> None:
        mock_client = MagicMock()
        mock_client.list_labels.return_value = []
        mock_client.create_issue.side_effect = APIError(http.HTTPStatus.FORBIDDEN, "forbidden")
        mock_client_cls.return_value = mock_client

        runner = CliRunner()
        result = runner.invoke(
            main,
            ["--repo", "owner/repo", "--run-id", "127", "--workflow", "release", "--commit", "abc"],
        )
        assert result.exit_code == 1
        assert "403" in result.output

    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
    @patch("scripts.ci.notify_failure.shutil.which", return_value="/usr/bin/tea")
    @patch("scripts.gitea_cli.TeaCLI")
    def test_tea_list_labels_error_continues_without_labels(
        self, mock_tea_cls: MagicMock, mock_which: MagicMock
    ) -> None:
        """If listing labels fails via tea, issue is still created without labels."""
        mock_tea = MagicMock()
        mock_tea.list_labels.side_effect = TeaCLIError("network error")
        mock_tea.create_issue.return_value = {"index": 50, "title": "test"}
        mock_tea_cls.return_value = mock_tea

        runner = CliRunner()
        result = runner.invoke(
            main,
            ["--repo", "owner/repo", "--run-id", "128", "--workflow", "release", "--commit", "abc"],
        )
        assert result.exit_code == 0
        assert "issue #50" in result.output

    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
    @patch("scripts.ci.notify_failure.shutil.which", return_value="/usr/bin/tea")
    @patch("scripts.gitea_cli.TeaCLI")
    def test_tea_add_label_error_is_ignored(self, mock_tea_cls: MagicMock, mock_which: MagicMock) -> None:
        """If adding label fails via tea, issue is still reported as created."""
        mock_tea = MagicMock()
        mock_tea.list_labels.return_value = [{"id": 5, "name": "bug"}]
        mock_tea.create_issue.return_value = {"index": 51, "title": "test"}
        mock_tea.add_label.side_effect = TeaCLIError("permission denied")
        mock_tea_cls.return_value = mock_tea

        runner = CliRunner()
        result = runner.invoke(
            main,
            ["--repo", "owner/repo", "--run-id", "129", "--workflow", "release", "--commit", "abc"],
        )
        assert result.exit_code == 0
        assert "issue #51" in result.output

    @patch.dict("os.environ", {"REPO_TOKEN": ""}, clear=True)
    def test_missing_token_exits(self) -> None:
        runner = CliRunner()
        result = runner.invoke(
            main,
            ["--repo", "owner/repo", "--run-id", "1", "--workflow", "release", "--commit", "abc"],
        )
        assert result.exit_code == 1
        assert "REPO_TOKEN" in result.output