from pathlib import Path

from click.testing import CliRunner

from ocado_grocy import paths
from ocado_grocy.history import main


def isolate(tmp_path, monkeypatch):
    monkeypatch.chdir(tmp_path)
    for name, directory in [('XDG_CONFIG_HOME', 'config'), ('XDG_STATE_HOME', 'state'), ('XDG_DATA_HOME', 'data')]:
        monkeypatch.setenv(name, str(tmp_path / directory))


def test_xdg_paths_and_shared_journal(tmp_path, monkeypatch):
    isolate(tmp_path, monkeypatch)
    assert paths.config_file() == tmp_path / 'config/ocado-grocy/config.toml'
    assert paths.browser_directory() == tmp_path / 'state/ocado-grocy/browser'
    assert paths.archive_directory() == tmp_path / 'data/ocado-grocy/history'
    assert paths.journal_file({}, paths.config_file()) == tmp_path / 'state/ocado-grocy/imports.sqlite3'


def test_legacy_installation_keeps_its_journal_and_archive(tmp_path, monkeypatch):
    isolate(tmp_path, monkeypatch)
    (tmp_path / 'config.toml').write_text('')
    assert paths.config_file() == Path('config.toml')
    assert paths.browser_directory() == Path('.ocado-browser')
    assert paths.archive_directory() == Path('history')
    assert paths.journal_file({}, paths.config_file()) == tmp_path / 'imports.sqlite3'


def test_custom_journal_paths(tmp_path, monkeypatch):
    isolate(tmp_path, monkeypatch)
    config = tmp_path / 'custom/config.toml'
    assert paths.journal_file({}, config) == config.parent / 'imports.sqlite3'
    assert paths.journal_file({'import': {'state_file': 'journal.db'}}, config) == config.parent / 'journal.db'
    target = tmp_path / 'journal.db'
    assert paths.journal_file({'import': {'state_file': str(target)}}, config) == target


def test_invalid_xdg_values_use_home(tmp_path, monkeypatch):
    isolate(tmp_path, monkeypatch)
    monkeypatch.setattr(Path, 'home', classmethod(lambda cls: tmp_path))
    monkeypatch.setenv('XDG_CONFIG_HOME', 'relative')
    monkeypatch.setenv('XDG_STATE_HOME', '')
    assert paths.config_file() == tmp_path / '.config/ocado-grocy/config.toml'
    assert paths.state_directory() == tmp_path / '.local/state/ocado-grocy'


def test_cli_defaults_are_resolved_at_invocation(tmp_path, monkeypatch):
    isolate(tmp_path, monkeypatch)
    calls = []
    def download(profile, archive, **kwargs):
        calls.append((profile, archive))
        return [], []
    monkeypatch.setattr('ocado_grocy.history.download_orders', download)
    result = CliRunner().invoke(main, ['--no-images', '--no-openfoodfacts'])
    assert result.exit_code == 0, result.output
    assert calls == [(paths.browser_directory(), paths.archive_directory())]
    assert not (tmp_path / 'imports.sqlite3').exists()