import pytest
from argparse import Namespace
from unittest.mock import call, mock_open, patch

import spoc

@patch('builtins.open', new_callable=mock_open, read_data='foo\0arg1\0arg2\n')
def test_print_lock(cmdline_open, capsys):
    spoc.print_lock('123')

    cmdline_open.assert_called_once_with('/proc/123/cmdline')
    captured = capsys.readouterr()
    assert captured.out == 'Waiting for lock currently held by process 123 - foo arg1 arg2\n'

@patch('spoc.podman.get_apps', return_value={'anotherapp': '0.1', 'someapp': '0.1'})
def test_listing_installed(get_apps, capsys):
    spoc.listing('installed')

    get_apps.assert_called_once()

    # Order is important here
    captured = capsys.readouterr()
    assert captured.out == 'anotherapp 0.1\nsomeapp 0.1\n'

@patch('spoc.repo.get_apps')
def test_listing_online(get_apps):
    spoc.listing('online')

    get_apps.assert_called_once()

@patch('spoc.repo.get_apps',
       return_value={'someapp': {'version': '0.2'}, 'anotherapp': {'version': '0.1'}})
@patch('spoc.podman.get_apps', return_value={'someapp': '0.1'})
def test_listing_updates(repo_get_apps, podman_get_apps, capsys):
    spoc.listing('updates')

    repo_get_apps.assert_called_once()
    podman_get_apps.assert_called_once()

    captured = capsys.readouterr()
    assert captured.out == 'someapp 0.1 -> 0.2\n'

@patch('spoc.repo.get_apps')
@patch('spoc.podman.get_apps')
def test_listing_invalid(repo_get_apps, podman_get_apps, capsys):
    spoc.listing('invalid')

    repo_get_apps.assert_not_called()
    podman_get_apps.assert_not_called()

    captured = capsys.readouterr()
    assert captured.out == ''

@patch('spoc.app.install')
def test_install(app_install):
    spoc.install('someapp')

    app_install.assert_called_once_with('someapp')

@patch('spoc.app.update')
def test_update(app_update):
    spoc.update('someapp')

    app_update.assert_called_once_with('someapp')

@patch('spoc.app.uninstall')
def test_uninstall(app_uninstall):
    spoc.uninstall('someapp')

    app_uninstall.assert_called_once_with('someapp')

@patch('spoc.podman.start_pod')
def test_start(start_pod):
    spoc.start('someapp')

    start_pod.assert_called_once_with('someapp')

@patch('spoc.podman.stop_pod')
def test_stop(stop_pod):
    spoc.stop('someapp')

    stop_pod.assert_called_once_with('someapp')

@patch('spoc.podman.get_pod_status', return_value='RESULT')
def test_status(get_pod_status, capsys):
    spoc.status('someapp')

    get_pod_status.assert_called_once_with('someapp')
    captured = capsys.readouterr()
    assert captured.out == 'RESULT\n'

@pytest.mark.parametrize('value,expected',[
    ('1', True),
    ('on', True),
    ('Enable', True),
    ('TRUE', True),
    ('whatever', False),
])
@patch('spoc.autostart.set_app')
def test_set_autostart(set_app, value, expected):
    spoc.set_autostart('someapp', value)

    set_app.assert_called_once_with('someapp', expected)

@patch('spoc.autostart.get_apps', return_value={'someapp', 'anotherapp'})
@patch('spoc.podman.start_pod')
def test_start_autostarted(start_pod, get_apps):
    spoc.start_autostarted()

    get_apps.assert_called_once()
    start_pod.assert_has_calls([
        call('someapp'),
        call('anotherapp'),
    ], any_order=True)

@patch('spoc.podman.get_apps', return_value={'someapp': '0.1', 'anotherapp': '0.1'})
@patch('spoc.podman.stop_pod')
def test_stop_all(stop_pod, get_apps):
    spoc.stop_all()

    get_apps.assert_called_once()
    stop_pod.assert_has_calls([
        call('someapp'),
        call('anotherapp'),
    ], any_order=True)

@patch('spoc.podman.prune')
def test_prune(prune):
    spoc.prune()

    prune.assert_called_once()

@patch('sys.argv', ['foo', 'list'])
@patch('spoc.listing')
def test_main_listing(listing):
    spoc.main()

    listing.assert_called_once_with('installed')

@patch('sys.argv', ['foo', 'list', 'online'])
@patch('spoc.listing')
def test_main_listing_online(listing):
    spoc.main()

    listing.assert_called_once_with('online')

@patch('sys.argv', ['foo', 'install', 'someapp'])
@patch('spoc.install')
def test_main_install(install):
    spoc.main()

    install.assert_called_once_with('someapp')

@patch('sys.argv', ['foo', 'update', 'someapp'])
@patch('spoc.update')
def test_main_update(update):
    spoc.main()

    update.assert_called_once_with('someapp')

@patch('sys.argv', ['foo', 'uninstall', 'someapp'])
@patch('spoc.uninstall')
def test_main_uninstall(uninstall):
    spoc.main()

    uninstall.assert_called_once_with('someapp')

@patch('sys.argv', ['foo', 'start', 'someapp'])
@patch('spoc.start')
def test_main_start(start):
    spoc.main()

    start.assert_called_once_with('someapp')

@patch('sys.argv', ['foo', 'stop', 'someapp'])
@patch('spoc.stop')
def test_main_stop(stop):
    spoc.main()

    stop.assert_called_once_with('someapp')

@patch('sys.argv', ['foo', 'status', 'someapp'])
@patch('spoc.status')
def test_main_status(status):
    spoc.main()

    status.assert_called_once_with('someapp')

@patch('sys.argv', ['foo', 'status'])
@patch('spoc.status')
def test_main_status_all(status):
    spoc.main()

    status.assert_called_once_with(None)

@patch('sys.argv', ['foo', 'autostart', 'someapp', 'on'])
@patch('spoc.set_autostart')
def test_main_autostart(autostart):
    spoc.main()

    autostart.assert_called_once_with('someapp', 'on')

@patch('sys.argv', ['foo', 'start-autostarted'])
@patch('spoc.start_autostarted')
def test_main_start_autostarted(start_autostarted):
    spoc.main()

    start_autostarted.assert_called_once()

@patch('sys.argv', ['foo', 'stop-all'])
@patch('spoc.stop_all')
def test_main_stop_all(stop_all):
    spoc.main()

    stop_all.assert_called_once()

@patch('sys.argv', ['foo', 'prune'])
@patch('spoc.prune')
def test_main_prune(prune):
    spoc.main()

    prune.assert_called_once()

@patch('spoc.parse_args', return_value=Namespace(action=None))
@patch('spoc.listing')
@patch('spoc.install')
@patch('spoc.update')
@patch('spoc.uninstall')
@patch('spoc.start')
@patch('spoc.stop')
@patch('spoc.status')
@patch('spoc.start_autostarted')
@patch('spoc.stop_all')
@patch('spoc.prune')
def test_main_invalid(prune, stop_all, start_autostarted, status, stop, start,
                      uninstall, update, install, listing, parse_args):
    spoc.main()

    parse_args.assert_called_once()
    listing.assert_not_called()
    install.assert_not_called()
    update.assert_not_called()
    uninstall.assert_not_called()
    start.assert_not_called()
    stop.assert_not_called()
    status.assert_not_called()
    start_autostarted.assert_not_called()
    stop_all.assert_not_called()
    prune.assert_not_called()

@pytest.mark.parametrize('argv', [
    ['list', 'invalid'],
    ['install'],
    ['update'],
    ['uninstall'],
    ['start'],
    ['stop'],
    ['autostart'],
    ['autostart', 'someapp'],
    ['invalid'],
])
def test_main_systemexit(argv):
    argv.insert(0, 'foo')
    with patch('sys.argv', argv):
        with pytest.raises(SystemExit):
            spoc.main()