# coding: utf-8

# Import Python libs
from __future__ import absolute_import
import os
import shutil
import tempfile

import pytest

# Import Salt Testing libs
from tests.support.unit import TestCase
from tests.support.mock import patch, MagicMock
from tests.support.mixins import AdaptedConfigurationTestCaseMixin
import salt.config
import salt.utils.files
import salt.spm

_F1 = {
    'definition': {
        'name': 'formula1',
        'version': '1.2',
        'release': '2',
        'summary': 'test',
        'description': 'testing, nothing to see here',
    }
}

_F1['contents'] = (
    ('FORMULA', ('name: {name}\n'
                 'version: {version}\n'
                 'release: {release}\n'
                 'summary: {summary}\n'
                 'description: {description}').format(**_F1['definition'])),
    ('modules/mod1.py', '# mod1.py'),
    ('modules/mod2.py', '# mod2.py'),
    ('states/state1.sls', '# state1.sls'),
    ('states/state2.sls', '# state2.sls'),
)


@pytest.mark.destructive_test
class SPMTestUserInterface(salt.spm.SPMUserInterface):
    '''
    Unit test user interface to SPMClient
    '''
    def __init__(self):
        self._status = []
        self._confirm = []
        self._error = []

    def status(self, msg):
        self._status.append(msg)

    def confirm(self, action):
        self._confirm.append(action)

    def error(self, msg):
        self._error.append(msg)


class SPMTest(TestCase, AdaptedConfigurationTestCaseMixin):
    def setUp(self):
        self._tmp_spm = tempfile.mkdtemp()
        self.addCleanup(shutil.rmtree, self._tmp_spm, ignore_errors=True)

        minion_config = self.get_temp_config('minion', **{
            'spm_logfile': os.path.join(self._tmp_spm, 'log'),
            'spm_repos_config': os.path.join(self._tmp_spm, 'etc', 'spm.repos'),
            'spm_cache_dir': os.path.join(self._tmp_spm, 'cache'),
            'spm_build_dir': os.path.join(self._tmp_spm, 'build'),
            'spm_build_exclude': ['.git'],
            'spm_db_provider': 'sqlite3',
            'spm_files_provider': 'local',
            'spm_db': os.path.join(self._tmp_spm, 'packages.db'),
            'extension_modules': os.path.join(self._tmp_spm, 'modules'),
            'file_roots': {'base': [self._tmp_spm, ]},
            'formula_path': os.path.join(self._tmp_spm, 'spm'),
            'pillar_path': os.path.join(self._tmp_spm, 'pillar'),
            'reactor_path': os.path.join(self._tmp_spm, 'reactor'),
            'assume_yes': True,
            'force': False,
            'verbose': False,
            'cache': 'localfs',
            'cachedir': os.path.join(self._tmp_spm, 'cache'),
            'spm_repo_dups': 'ignore',
            'spm_share_dir': os.path.join(self._tmp_spm, 'share'),
        })
        self.ui = SPMTestUserInterface()
        self.client = salt.spm.SPMClient(self.ui, minion_config)
        self.minion_config = minion_config
        for attr in ('client', 'ui', '_tmp_spm', 'minion_config'):
            self.addCleanup(delattr, self, attr)

    def _create_formula_files(self, formula):
        fdir = os.path.join(self._tmp_spm, formula['definition']['name'])
        shutil.rmtree(fdir, ignore_errors=True)
        os.mkdir(fdir)
        for path, contents in formula['contents']:
            path = os.path.join(fdir, path)
            dirname, _ = os.path.split(path)
            if not os.path.exists(dirname):
                os.makedirs(dirname)
            with salt.utils.files.fopen(path, 'w') as f:
                f.write(contents)
        return fdir

    def test_build_install(self):
        # Build package
        fdir = self._create_formula_files(_F1)
        with patch('salt.client.Caller', MagicMock(return_value=self.minion_opts)):
            with patch('salt.client.get_local_client', MagicMock(return_value=self.minion_opts['conf_file'])):
                self.client.run(['build', fdir])
        pkgpath = self.ui._status[-1].split()[-1]
        assert os.path.exists(pkgpath)
        # Install package
        with patch('salt.client.Caller', MagicMock(return_value=self.minion_opts)):
            with patch('salt.client.get_local_client', MagicMock(return_value=self.minion_opts['conf_file'])):
                self.client.run(['local', 'install', pkgpath])
        # Check filesystem
        for path, contents in _F1['contents']:
            path = os.path.join(self.minion_config['file_roots']['base'][0], _F1['definition']['name'], path)
            assert os.path.exists(path)
            with salt.utils.files.fopen(path, 'r') as rfh:
                assert rfh.read() == contents
        # Check database
        with patch('salt.client.Caller', MagicMock(return_value=self.minion_opts)):
            with patch('salt.client.get_local_client', MagicMock(return_value=self.minion_opts['conf_file'])):
                self.client.run(['info', _F1['definition']['name']])
        lines = self.ui._status[-1].split('\n')
        for key, line in (
                ('name', 'Name: {0}'),
                ('version', 'Version: {0}'),
                ('release', 'Release: {0}'),
                ('summary', 'Summary: {0}')):
            assert line.format(_F1['definition'][key]) in lines
        # Reinstall with force=False, should fail
        self.ui._error = []
        with patch('salt.client.Caller', MagicMock(return_value=self.minion_opts)):
            with patch('salt.client.get_local_client', MagicMock(return_value=self.minion_opts['conf_file'])):
                self.client.run(['local', 'install', pkgpath])
        assert len(self.ui._error) > 0
        # Reinstall with force=True, should succeed
        with patch.dict(self.minion_config, {'force': True}):
            self.ui._error = []
            with patch('salt.client.Caller', MagicMock(return_value=self.minion_opts)):
                with patch('salt.client.get_local_client', MagicMock(return_value=self.minion_opts['conf_file'])):
                    self.client.run(['local', 'install', pkgpath])
            assert len(self.ui._error) == 0

    def test_failure_paths(self):
        fail_args = (
            ['bogus', 'command'],
            ['create_repo'],
            ['build'],
            ['build', '/nonexistent/path'],
            ['info'],
            ['info', 'not_installed'],
            ['files'],
            ['files', 'not_installed'],
            ['install'],
            ['install', 'nonexistent.spm'],
            ['remove'],
            ['remove', 'not_installed'],
            ['local', 'bogus', 'command'],
            ['local', 'info'],
            ['local', 'info', '/nonexistent/path/junk.spm'],
            ['local', 'files'],
            ['local', 'files', '/nonexistent/path/junk.spm'],
            ['local', 'install'],
            ['local', 'install', '/nonexistent/path/junk.spm'],
            ['local', 'list'],
            ['local', 'list', '/nonexistent/path/junk.spm'],
            # XXX install failure due to missing deps
            # XXX install failure due to missing field
        )

        for args in fail_args:
            self.ui._error = []
            with patch('salt.client.Caller', MagicMock(return_value=self.minion_opts)):
                with patch('salt.client.get_local_client', MagicMock(return_value=self.minion_opts['conf_file'])):
                    self.client.run(args)
            assert len(self.ui._error) > 0