import os
import pytest
from buildstream import _yaml
from buildstream._exceptions import ErrorDomain, LoadErrorReason
from tests.testutils.runcli import cli

# Project directory
DATA_DIR = os.path.join(
    os.path.dirname(os.path.realpath(__file__)),
    'options'
)


@pytest.mark.datafiles(DATA_DIR)
def test_invalid_option_type(cli, datafiles):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'invalid-type')

    # Test with the opt option set
    result = cli.run(project=project, silent=True, args=[
        '--option', 'opt', 'funny',
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_main_error(ErrorDomain.LOAD, LoadErrorReason.INVALID_DATA)


@pytest.mark.datafiles(DATA_DIR)
def test_invalid_option_cli(cli, datafiles):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'simple-condition')

    # Test with the opt option set
    result = cli.run(project=project, silent=True, args=[
        '--option', 'fart', 'funny',
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_main_error(ErrorDomain.LOAD, LoadErrorReason.INVALID_DATA)


@pytest.mark.datafiles(DATA_DIR)
def test_invalid_option_config(cli, datafiles):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'simple-condition')
    cli.configure({
        'projects': {
            'test': {
                'options': {
                    'fart': 'Hello'
                }
            }
        }
    })
    result = cli.run(project=project, silent=True, args=[
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_main_error(ErrorDomain.LOAD, LoadErrorReason.INVALID_DATA)


@pytest.mark.datafiles(DATA_DIR)
def test_invalid_expression(cli, datafiles):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'invalid-expression')
    result = cli.run(project=project, silent=True, args=[
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_main_error(ErrorDomain.LOAD, LoadErrorReason.EXPRESSION_FAILED)


@pytest.mark.datafiles(DATA_DIR)
def test_undefined(cli, datafiles):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'undefined-variable')
    result = cli.run(project=project, silent=True, args=[
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_main_error(ErrorDomain.LOAD, LoadErrorReason.EXPRESSION_FAILED)


@pytest.mark.datafiles(DATA_DIR)
def test_invalid_condition(cli, datafiles):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'invalid-condition')
    result = cli.run(project=project, silent=True, args=[
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_main_error(ErrorDomain.LOAD, LoadErrorReason.INVALID_DATA)


@pytest.mark.datafiles(DATA_DIR)
@pytest.mark.parametrize("opt_option,expected_prefix", [
    ('False', '/usr'),
    ('True', '/opt'),
])
def test_simple_conditional(cli, datafiles, opt_option, expected_prefix):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'simple-condition')

    # Test with the opt option set
    result = cli.run(project=project, silent=True, args=[
        '--option', 'opt', opt_option,
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_success()
    loaded = _yaml.load_data(result.output)
    assert loaded['prefix'] == expected_prefix


@pytest.mark.datafiles(DATA_DIR)
@pytest.mark.parametrize("debug,logging,expected", [
    ('False', 'False', 'False'),
    ('True', 'False', 'False'),
    ('False', 'True', 'False'),
    ('True', 'True', 'True'),
])
def test_nested_conditional(cli, datafiles, debug, logging, expected):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'nested-condition')

    # Test with the opt option set
    result = cli.run(project=project, silent=True, args=[
        '--option', 'debug', debug,
        '--option', 'logging', logging,
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_success()
    loaded = _yaml.load_data(result.output)
    assert loaded['debug'] == expected


@pytest.mark.datafiles(DATA_DIR)
@pytest.mark.parametrize("debug,logging,expected", [
    ('False', 'False', 'False'),
    ('True', 'False', 'False'),
    ('False', 'True', 'False'),
    ('True', 'True', 'True'),
])
def test_compound_and_conditional(cli, datafiles, debug, logging, expected):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'compound-and-condition')

    # Test with the opt option set
    result = cli.run(project=project, silent=True, args=[
        '--option', 'debug', debug,
        '--option', 'logging', logging,
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_success()
    loaded = _yaml.load_data(result.output)
    assert loaded['debug'] == expected


@pytest.mark.datafiles(DATA_DIR)
@pytest.mark.parametrize("debug,logging,expected", [
    ('False', 'False', 'False'),
    ('True', 'False', 'True'),
    ('False', 'True', 'True'),
    ('True', 'True', 'True'),
])
def test_compound_or_conditional(cli, datafiles, debug, logging, expected):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'compound-or-condition')

    # Test with the opt option set
    result = cli.run(project=project, silent=True, args=[
        '--option', 'debug', debug,
        '--option', 'logging', logging,
        'show',
        '--deps', 'none',
        '--format', '%{vars}',
        'element.bst'])
    result.assert_success()
    loaded = _yaml.load_data(result.output)
    assert loaded['logging'] == expected


@pytest.mark.datafiles(DATA_DIR)
@pytest.mark.parametrize("option,expected", [
    ('False', 'horsy'),
    ('True', 'pony'),
])
def test_deep_nesting_level1(cli, datafiles, option, expected):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'deep-nesting')
    result = cli.run(project=project, silent=True, args=[
        '--option', 'pony', option,
        'show',
        '--deps', 'none',
        '--format', '%{public}',
        'element.bst'])
    result.assert_success()
    loaded = _yaml.load_data(result.output)
    shallow_list = loaded['shallow-nest']
    first_dict = shallow_list[0]

    assert first_dict['animal'] == expected


@pytest.mark.datafiles(DATA_DIR)
@pytest.mark.parametrize("option,expected", [
    ('False', 'horsy'),
    ('True', 'pony'),
])
def test_deep_nesting_level2(cli, datafiles, option, expected):
    project = os.path.join(datafiles.dirname, datafiles.basename, 'deep-nesting')
    result = cli.run(project=project, silent=True, args=[
        '--option', 'pony', option,
        'show',
        '--deps', 'none',
        '--format', '%{public}',
        'element-deeper.bst'])
    result.assert_success()
    loaded = _yaml.load_data(result.output)
    shallow_list = loaded['deep-nest']
    deeper_list = shallow_list[0]
    first_dict = deeper_list[0]

    assert first_dict['animal'] == expected