from mock.mock import patch
import os
import pytest
import ca_test_common
import ceph_crush_rule

fake_cluster = 'ceph'
fake_container_binary = 'podman'
fake_container_image = 'quay.io/ceph/daemon:latest'
fake_name = 'foo'
fake_bucket_root = 'default'
fake_bucket_type = 'host'
fake_device_class = 'ssd'
fake_profile = 'default'
fake_user = 'client.admin'
fake_keyring = '/etc/ceph/{}.{}.keyring'.format(fake_cluster, fake_user)


class TestCephCrushRuleModule(object):

    @patch('ansible.module_utils.basic.AnsibleModule.fail_json')
    def test_without_parameters(self, m_fail_json):
        ca_test_common.set_module_args({})
        m_fail_json.side_effect = ca_test_common.fail_json

        with pytest.raises(ca_test_common.AnsibleFailJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert result['msg'] == 'missing required arguments: name'

    @patch('ansible.module_utils.basic.AnsibleModule.fail_json')
    def test_with_name_only(self, m_fail_json):
        ca_test_common.set_module_args({
            'name': fake_name
        })
        m_fail_json.side_effect = ca_test_common.fail_json

        with pytest.raises(ca_test_common.AnsibleFailJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert result['msg'] == 'state is present but all of the following are missing: rule_type'

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    def test_with_check_mode(self, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'rule_type': 'replicated',
            'bucket_root': fake_bucket_root,
            'bucket_type': fake_bucket_type,
            '_ansible_check_mode': True
        })
        m_exit_json.side_effect = ca_test_common.exit_json

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert not result['changed']
        assert result['rc'] == 0
        assert not result['stdout']
        assert not result['stderr']

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_create_non_existing_replicated_rule(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'rule_type': 'replicated',
            'bucket_root': fake_bucket_root,
            'bucket_type': fake_bucket_type
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        get_rc = 2
        get_stderr = 'Error ENOENT: unknown crush rule \'{}\''.format(fake_name)
        get_stdout = ''
        create_rc = 0
        create_stderr = ''
        create_stdout = ''
        m_run_command.side_effect = [
            (get_rc, get_stdout, get_stderr),
            (create_rc, create_stdout, create_stderr)
        ]

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'create-replicated', fake_name, fake_bucket_root, fake_bucket_type]
        assert result['rc'] == create_rc
        assert result['stderr'] == create_stderr
        assert result['stdout'] == create_stdout

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_create_existing_replicated_rule(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'rule_type': 'replicated',
            'bucket_root': fake_bucket_root,
            'bucket_type': fake_bucket_type
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        rc = 0
        stderr = ''
        stdout = '{{"rule_name":"{}","type":1,"steps":[{{"item_name":"{}"}},{{"type":"{}"}}]}}'.format(fake_name, fake_bucket_root, fake_bucket_type)
        m_run_command.return_value = rc, stdout, stderr

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert not result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'dump', fake_name, '--format=json']
        assert result['rc'] == 0
        assert result['stderr'] == stderr
        assert result['stdout'] == stdout

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_create_non_existing_replicated_rule_device_class(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'rule_type': 'replicated',
            'bucket_root': fake_bucket_root,
            'bucket_type': fake_bucket_type,
            'device_class': fake_device_class
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        get_rc = 2
        get_stderr = 'Error ENOENT: unknown crush rule \'{}\''.format(fake_name)
        get_stdout = ''
        create_rc = 0
        create_stderr = ''
        create_stdout = ''
        m_run_command.side_effect = [
            (get_rc, get_stdout, get_stderr),
            (create_rc, create_stdout, create_stderr)
        ]

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'create-replicated', fake_name, fake_bucket_root, fake_bucket_type, fake_device_class]
        assert result['rc'] == create_rc
        assert result['stderr'] == create_stderr
        assert result['stdout'] == create_stdout

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_create_existing_replicated_rule_device_class(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'rule_type': 'replicated',
            'bucket_root': fake_bucket_root,
            'bucket_type': fake_bucket_type,
            'device_class': fake_device_class
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        rc = 0
        stderr = ''
        stdout = '{{"rule_name":"{}","type":1,"steps":[{{"item_name":"{}"}},{{"type":"{}"}}]}}'.format(fake_name, fake_bucket_root, fake_bucket_type)
        m_run_command.return_value = rc, stdout, stderr

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert not result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'dump', fake_name, '--format=json']
        assert result['rc'] == 0
        assert result['stderr'] == stderr
        assert result['stdout'] == stdout

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_create_non_existing_erasure_rule(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'rule_type': 'erasure',
            'profile': fake_profile
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        get_rc = 2
        get_stderr = 'Error ENOENT: unknown crush rule \'{}\''.format(fake_name)
        get_stdout = ''
        create_rc = 0
        create_stderr = ''
        create_stdout = 'created rule {} at 1'.format(fake_name)
        m_run_command.side_effect = [
            (get_rc, get_stdout, get_stderr),
            (create_rc, create_stdout, create_stderr)
        ]

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'create-erasure', fake_name, fake_profile]
        assert result['rc'] == create_rc
        assert result['stderr'] == create_stderr
        assert result['stdout'] == create_stdout

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_create_existing_erasure_rule(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'rule_type': 'erasure',
            'profile': fake_profile
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        rc = 0
        stderr = ''
        stdout = '{{"type":3,"rule_name":"{}","steps":[{{"item_name":"default"}},{{"type":"host"}}]}}'.format(fake_name)
        m_run_command.return_value = rc, stdout, stderr

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert not result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'dump', fake_name, '--format=json']
        assert result['rc'] == 0
        assert result['stderr'] == stderr
        assert result['stdout'] == stdout

    @patch('ansible.module_utils.basic.AnsibleModule.fail_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_update_existing_replicated_rule(self, m_run_command, m_fail_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'rule_type': 'replicated',
            'bucket_root': fake_bucket_root,
            'bucket_type': fake_bucket_type,
            'device_class': fake_device_class
        })
        m_fail_json.side_effect = ca_test_common.fail_json
        rc = 0
        stderr = ''
        stdout = '{{"type":3,"rule_name":"{}","steps":[{{"item_name":"default"}},{{"type":"host"}}]}}'.format(fake_name)
        m_run_command.return_value = rc, stdout, stderr

        with pytest.raises(ca_test_common.AnsibleFailJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        print(result)
        assert not result['changed']
        assert result['msg'] == 'Can not convert crush rule {} to replicated'.format(fake_name)
        assert result['rc'] == 1

    @patch('ansible.module_utils.basic.AnsibleModule.fail_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_update_existing_erasure_rule(self, m_run_command, m_fail_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'rule_type': 'erasure',
            'profile': fake_profile
        })
        m_fail_json.side_effect = ca_test_common.fail_json
        rc = 0
        stderr = ''
        stdout = '{{"type":1,"rule_name":"{}","steps":[{{"item_name":"default"}},{{"type":"host"}}]}}'.format(fake_name)
        m_run_command.return_value = rc, stdout, stderr

        with pytest.raises(ca_test_common.AnsibleFailJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        print(result)
        assert not result['changed']
        assert result['msg'] == 'Can not convert crush rule {} to erasure'.format(fake_name)
        assert result['rc'] == 1

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_remove_non_existing_rule(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'state': 'absent'
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        rc = 2
        stderr = 'Error ENOENT: unknown crush rule \'{}\''.format(fake_name)
        stdout = ''
        m_run_command.return_value = rc, stdout, stderr

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert not result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'dump', fake_name, '--format=json']
        assert result['rc'] == 0
        assert result['stderr'] == stderr
        assert result['stdout'] == "Crush Rule {} doesn't exist".format(fake_name)

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_remove_existing_rule(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'state': 'absent'
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        get_rc = 0
        get_stderr = ''
        get_stdout = '{{"rule_name":"{}","steps":[{{"item_name":"{}"}},{{"type":"{}"}}]}}'.format(fake_name, fake_bucket_root, fake_bucket_type)
        remove_rc = 0
        remove_stderr = ''
        remove_stdout = ''
        m_run_command.side_effect = [
            (get_rc, get_stdout, get_stderr),
            (remove_rc, remove_stdout, remove_stderr)
        ]

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'rm', fake_name]
        assert result['rc'] == remove_rc
        assert result['stderr'] == remove_stderr
        assert result['stdout'] == remove_stdout

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_get_non_existing_rule(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'state': 'info'
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        rc = 2
        stderr = 'Error ENOENT: unknown crush rule \'{}\''.format(fake_name)
        stdout = ''
        m_run_command.return_value = rc, stdout, stderr

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert not result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'dump', fake_name, '--format=json']
        assert result['rc'] == rc
        assert result['stderr'] == stderr
        assert result['stdout'] == stdout

    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_get_existing_rule(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'state': 'info'
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        rc = 0
        stderr = ''
        stdout = '{{"rule_name":"{}","steps":[{{"item_name":"{}"}},{{"type":"{}"}}]}}'.format(fake_name, fake_bucket_root, fake_bucket_type)
        m_run_command.return_value = rc, stdout, stderr

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert not result['changed']
        assert result['cmd'] == ['ceph', '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush', 'rule',
                                 'dump', fake_name, '--format=json']
        assert result['rc'] == rc
        assert result['stderr'] == stderr
        assert result['stdout'] == stdout

    @patch.dict(os.environ, {'CEPH_CONTAINER_BINARY': fake_container_binary})
    @patch.dict(os.environ, {'CEPH_CONTAINER_IMAGE': fake_container_image})
    @patch('ansible.module_utils.basic.AnsibleModule.exit_json')
    @patch('ansible.module_utils.basic.AnsibleModule.run_command')
    def test_with_container(self, m_run_command, m_exit_json):
        ca_test_common.set_module_args({
            'name': fake_name,
            'state': 'info'
        })
        m_exit_json.side_effect = ca_test_common.exit_json
        rc = 0
        stderr = ''
        stdout = '{{"rule_name":"{}","steps":[{{"item_name":"{}"}},{{"type":"{}"}}]}}'.format(fake_name, fake_bucket_root, fake_bucket_type)
        m_run_command.return_value = rc, stdout, stderr

        with pytest.raises(ca_test_common.AnsibleExitJson) as result:
            ceph_crush_rule.main()

        result = result.value.args[0]
        assert not result['changed']
        assert result['cmd'] == [fake_container_binary, 'run', '--rm', '--net=host',
                                 '-v', '/etc/ceph:/etc/ceph:z',
                                 '-v', '/var/lib/ceph/:/var/lib/ceph/:z',
                                 '-v', '/var/log/ceph/:/var/log/ceph/:z',
                                 '--entrypoint=ceph', fake_container_image,
                                 '-n', fake_user, '-k', fake_keyring,
                                 '--cluster', fake_cluster, 'osd', 'crush',
                                 'rule', 'dump', fake_name, '--format=json']
        assert result['rc'] == rc
        assert result['stderr'] == stderr
        assert result['stdout'] == stdout