import logging

import pytest
from flexmock import flexmock

from borgmatic.hooks import mongodb as module


def test_dump_databases_runs_mongodump_for_each_database():
    databases = [{'name': 'foo'}, {'name': 'bar'}]
    processes = [flexmock(), flexmock()]
    flexmock(module).should_receive('make_dump_path').and_return('')
    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
        'databases/localhost/foo'
    ).and_return('databases/localhost/bar')
    flexmock(module.dump).should_receive('create_named_pipe_for_dump')

    for name, process in zip(('foo', 'bar'), processes):
        flexmock(module).should_receive('execute_command').with_args(
            ['mongodump', '--db', name, '--archive', '>', 'databases/localhost/{}'.format(name)],
            shell=True,
            run_to_completion=False,
        ).and_return(process).once()

    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == processes


def test_dump_databases_with_dry_run_skips_mongodump():
    databases = [{'name': 'foo'}, {'name': 'bar'}]
    flexmock(module).should_receive('make_dump_path').and_return('')
    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
        'databases/localhost/foo'
    ).and_return('databases/localhost/bar')
    flexmock(module.dump).should_receive('create_named_pipe_for_dump').never()
    flexmock(module).should_receive('execute_command').never()

    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=True) == []


def test_dump_databases_runs_mongodump_with_hostname_and_port():
    databases = [{'name': 'foo', 'hostname': 'database.example.org', 'port': 5433}]
    process = flexmock()
    flexmock(module).should_receive('make_dump_path').and_return('')
    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
        'databases/database.example.org/foo'
    )
    flexmock(module.dump).should_receive('create_named_pipe_for_dump')

    flexmock(module).should_receive('execute_command').with_args(
        [
            'mongodump',
            '--host',
            'database.example.org',
            '--port',
            '5433',
            '--db',
            'foo',
            '--archive',
            '>',
            'databases/database.example.org/foo',
        ],
        shell=True,
        run_to_completion=False,
    ).and_return(process).once()

    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]


def test_dump_databases_runs_mongodump_with_username_and_password():
    databases = [
        {
            'name': 'foo',
            'username': 'mongo',
            'password': 'trustsome1',
            'authentication_database': 'admin',
        }
    ]
    process = flexmock()
    flexmock(module).should_receive('make_dump_path').and_return('')
    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
        'databases/localhost/foo'
    )
    flexmock(module.dump).should_receive('create_named_pipe_for_dump')

    flexmock(module).should_receive('execute_command').with_args(
        [
            'mongodump',
            '--username',
            'mongo',
            '--password',
            'trustsome1',
            '--authenticationDatabase',
            'admin',
            '--db',
            'foo',
            '--archive',
            '>',
            'databases/localhost/foo',
        ],
        shell=True,
        run_to_completion=False,
    ).and_return(process).once()

    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]


def test_dump_databases_runs_mongodump_with_directory_format():
    databases = [{'name': 'foo', 'format': 'directory'}]
    flexmock(module).should_receive('make_dump_path').and_return('')
    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
        'databases/localhost/foo'
    )
    flexmock(module.dump).should_receive('create_parent_directory_for_dump')
    flexmock(module.dump).should_receive('create_named_pipe_for_dump').never()

    flexmock(module).should_receive('execute_command').with_args(
        ['mongodump', '--out', 'databases/localhost/foo', '--db', 'foo'], shell=True,
    ).and_return(flexmock()).once()

    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == []


def test_dump_databases_runs_mongodump_with_options():
    databases = [{'name': 'foo', 'options': '--stuff=such'}]
    process = flexmock()
    flexmock(module).should_receive('make_dump_path').and_return('')
    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
        'databases/localhost/foo'
    )
    flexmock(module.dump).should_receive('create_named_pipe_for_dump')

    flexmock(module).should_receive('execute_command').with_args(
        ['mongodump', '--db', 'foo', '--stuff=such', '--archive', '>', 'databases/localhost/foo'],
        shell=True,
        run_to_completion=False,
    ).and_return(process).once()

    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]


def test_dump_databases_runs_mongodumpall_for_all_databases():
    databases = [{'name': 'all'}]
    process = flexmock()
    flexmock(module).should_receive('make_dump_path').and_return('')
    flexmock(module.dump).should_receive('make_database_dump_filename').and_return(
        'databases/localhost/all'
    )
    flexmock(module.dump).should_receive('create_named_pipe_for_dump')

    flexmock(module).should_receive('execute_command').with_args(
        ['mongodump', '--archive', '>', 'databases/localhost/all'],
        shell=True,
        run_to_completion=False,
    ).and_return(process).once()

    assert module.dump_databases(databases, 'test.yaml', {}, dry_run=False) == [process]


def test_restore_database_dump_runs_mongorestore():
    database_config = [{'name': 'foo'}]
    extract_process = flexmock(stdout=flexmock())

    flexmock(module).should_receive('make_dump_path')
    flexmock(module.dump).should_receive('make_database_dump_filename')
    flexmock(module).should_receive('execute_command_with_processes').with_args(
        ['mongorestore', '--archive', '--drop', '--db', 'foo'],
        processes=[extract_process],
        output_log_level=logging.DEBUG,
        input_file=extract_process.stdout,
    ).once()

    module.restore_database_dump(
        database_config, 'test.yaml', {}, dry_run=False, extract_process=extract_process
    )


def test_restore_database_dump_errors_on_multiple_database_config():
    database_config = [{'name': 'foo'}, {'name': 'bar'}]

    flexmock(module).should_receive('make_dump_path')
    flexmock(module.dump).should_receive('make_database_dump_filename')
    flexmock(module).should_receive('execute_command_with_processes').never()
    flexmock(module).should_receive('execute_command').never()

    with pytest.raises(ValueError):
        module.restore_database_dump(
            database_config, 'test.yaml', {}, dry_run=False, extract_process=flexmock()
        )


def test_restore_database_dump_runs_mongorestore_with_hostname_and_port():
    database_config = [{'name': 'foo', 'hostname': 'database.example.org', 'port': 5433}]
    extract_process = flexmock(stdout=flexmock())

    flexmock(module).should_receive('make_dump_path')
    flexmock(module.dump).should_receive('make_database_dump_filename')
    flexmock(module).should_receive('execute_command_with_processes').with_args(
        [
            'mongorestore',
            '--archive',
            '--drop',
            '--db',
            'foo',
            '--host',
            'database.example.org',
            '--port',
            '5433',
        ],
        processes=[extract_process],
        output_log_level=logging.DEBUG,
        input_file=extract_process.stdout,
    ).once()

    module.restore_database_dump(
        database_config, 'test.yaml', {}, dry_run=False, extract_process=extract_process
    )


def test_restore_database_dump_runs_mongorestore_with_username_and_password():
    database_config = [
        {
            'name': 'foo',
            'username': 'mongo',
            'password': 'trustsome1',
            'authentication_database': 'admin',
        }
    ]
    extract_process = flexmock(stdout=flexmock())

    flexmock(module).should_receive('make_dump_path')
    flexmock(module.dump).should_receive('make_database_dump_filename')
    flexmock(module).should_receive('execute_command_with_processes').with_args(
        [
            'mongorestore',
            '--archive',
            '--drop',
            '--db',
            'foo',
            '--username',
            'mongo',
            '--password',
            'trustsome1',
            '--authenticationDatabase',
            'admin',
        ],
        processes=[extract_process],
        output_log_level=logging.DEBUG,
        input_file=extract_process.stdout,
    ).once()

    module.restore_database_dump(
        database_config, 'test.yaml', {}, dry_run=False, extract_process=extract_process
    )


def test_restore_database_dump_runs_mongorestore_with_options():
    database_config = [{'name': 'foo', 'restore_options': '--harder'}]
    extract_process = flexmock(stdout=flexmock())

    flexmock(module).should_receive('make_dump_path')
    flexmock(module.dump).should_receive('make_database_dump_filename')
    flexmock(module).should_receive('execute_command_with_processes').with_args(
        ['mongorestore', '--archive', '--drop', '--db', 'foo', '--harder'],
        processes=[extract_process],
        output_log_level=logging.DEBUG,
        input_file=extract_process.stdout,
    ).once()

    module.restore_database_dump(
        database_config, 'test.yaml', {}, dry_run=False, extract_process=extract_process
    )


def test_restore_database_dump_runs_psql_for_all_database_dump():
    database_config = [{'name': 'all'}]
    extract_process = flexmock(stdout=flexmock())

    flexmock(module).should_receive('make_dump_path')
    flexmock(module.dump).should_receive('make_database_dump_filename')
    flexmock(module).should_receive('execute_command_with_processes').with_args(
        ['mongorestore', '--archive'],
        processes=[extract_process],
        output_log_level=logging.DEBUG,
        input_file=extract_process.stdout,
    ).once()

    module.restore_database_dump(
        database_config, 'test.yaml', {}, dry_run=False, extract_process=extract_process
    )


def test_restore_database_dump_with_dry_run_skips_restore():
    database_config = [{'name': 'foo'}]

    flexmock(module).should_receive('make_dump_path')
    flexmock(module.dump).should_receive('make_database_dump_filename')
    flexmock(module).should_receive('execute_command_with_processes').never()

    module.restore_database_dump(
        database_config, 'test.yaml', {}, dry_run=True, extract_process=flexmock()
    )


def test_restore_database_dump_without_extract_process_restores_from_disk():
    database_config = [{'name': 'foo', 'format': 'directory'}]

    flexmock(module).should_receive('make_dump_path')
    flexmock(module.dump).should_receive('make_database_dump_filename').and_return('/dump/path')
    flexmock(module).should_receive('execute_command_with_processes').with_args(
        ['mongorestore', '--dir', '/dump/path', '--drop', '--db', 'foo'],
        processes=[],
        output_log_level=logging.DEBUG,
        input_file=None,
    ).once()

    module.restore_database_dump(
        database_config, 'test.yaml', {}, dry_run=False, extract_process=None
    )