import json

import application
import pytest

from ows_accounting.validation import json_schema
from ows_accounting.validation import json_validators


def test_populate_validate_result_success(
        example_validation_schema, example_data_to_validate_success):
    """Test basic json schema functionality, success case.
    """

    response = json_schema.populate_validate_result(
        example_data_to_validate_success, example_validation_schema)

    assert response.status == 200


def test_populate_validate_result_failure(
        example_validation_schema, example_data_to_validate_failure):
    """Test basic json schema functionality, failure case.
    """

    response = json_schema.populate_validate_result(
        example_data_to_validate_failure, example_validation_schema)

    assert response.errors.get('message') == 'Invalid user data required'
    assert response.status == 400


def test_populate_validate_result_fail_required(
        example_validation_schema, example_data_to_validate_success):
    """Test basic json schema functionality, failure case."""
    del (example_data_to_validate_success['apple'])
    response = json_schema.populate_validate_result(
        example_data_to_validate_success, example_validation_schema)

    assert response.errors.get('message') == '\'apple\' is a required property'
    assert response.status == 400


def test_get_report_success(valid_get_report_request):
    """Test valid GET report success.
    """

    response = json_schema.populate_validate_result(
        data=valid_get_report_request,
        validator=json_validators.REPORT_GET_VALIDATOR)

    assert response.status == 200


def test_get_report_failure(invalid_get_report_request):
    """Test invalid GET report failure for parent schema.
    """

    response = json_schema.populate_validate_result(
        data=invalid_get_report_request,
        validator=json_validators.REPORT_GET_VALIDATOR)

    assert response.errors.get('message') == \
        'Invalid number format pattern'
    assert response.status == 400


def test_get_report_regex_failure(invalid_get_report_trailing_spaces):
    """Test invalid GET report failure regex check.
    """

    response = json_schema.populate_validate_result(
        data=invalid_get_report_trailing_spaces,
        validator=json_validators.REPORT_GET_VALIDATOR)

    assert response.errors.get('message') == \
        'Invalid accounting period pattern'
    assert response.status == 400


@pytest.mark.parametrize('report_version', [None, 1, 2])
def test_post_report_success(valid_get_report_request, report_version):
    """Test valid POST report.
    """

    data = valid_get_report_request
    if report_version:
        data['report_version'] = report_version

    response = json_schema.populate_validate_result(
        data=data,
        validator=json_validators.REPORT_POST_VALIDATOR)

    assert response.status == 200


def test_post_report_user_data_failure(invalid_get_report_request_context):
    """Test invalid POST report failure for child schema.
    """

    response = json_schema.populate_validate_result(
        data=invalid_get_report_request_context,
        validator=json_validators.REPORT_POST_VALIDATOR)

    # @todo: make the message more descriptive
    assert response.errors.get('message') == 'No match for request'
    assert response.status == 400


def test_get_transaction_types(invalid_get_report_trailing_spaces):
    """Test invalid GET report failure regex check.
    """

    response = json_schema.populate_validate_result(
        data=invalid_get_report_trailing_spaces,
        validator=json_validators.TRANSACTION_TYPES_GET_VALIDATOR)

    assert response.errors.get('message') == \
        'Invalid accounting period pattern'
    assert response.status == 400


def test_get_transaction_types_too_many_params(
        invalid_get_transaction_types):
    """Test invalid GET report with extra params.
    """

    response = json_schema.populate_validate_result(
        data=invalid_get_transaction_types,
        validator=json_validators.TRANSACTION_TYPES_GET_VALIDATOR)

    assert response.status == 400


def test_validate_request_query_string(mock_handler, test_header):
    """Test validation decorator for JSON Schema if Request is query string.
    """

    with application.app.test_request_context(
            '?periods=200&account_id=1234&transaction_types=DT'
            '&file_type=txt&number_format=en_US&account_type=vendor',
            headers=test_header):

        actual = json_schema.validate_request(
            args_schema=json_validators.REPORT_GET_VALIDATOR)(mock_handler)
        assert actual() == 'Not decorated.'


def test_validate_request_body(
        mock_handler, valid_get_report_request, test_header):
    """Test validation decorator for JSON Schema for data in Request.
    """

    with application.app.test_request_context(
            '/report', method='post',
            data=json.dumps(valid_get_report_request),
            content_type='application/json', headers=test_header):

        actual = json_schema.validate_request(
            body_schema=json_validators.REPORT_POST_VALIDATOR)(mock_handler)
        assert actual() == 'Not decorated.'