# -*- coding: utf-8 -*-

from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

import pytest
try:
    from unittest.mock import MagicMock
except ImportError:
    from mock import MagicMock

from ansible_collections.community.mysql.plugins.module_utils.user import (
    handle_grant_on_col,
    has_grant_on_col,
    normalize_col_grants,
    sort_column_order
)
from ..utils import dummy_cursor_class


@pytest.mark.parametrize(
    'input_list,grant,output_tuple',
    [
        (['INSERT', 'DELETE'], 'INSERT', (None, None)),
        (['SELECT', 'UPDATE'], 'SELECT', (None, None)),
        (['INSERT', 'UPDATE', 'INSERT', 'DELETE'], 'DELETE', (None, None)),
        (['just', 'a', 'random', 'text'], 'blabla', (None, None)),
        (['SELECT (A, B, C)'], 'SELECT', (0, 0)),
        (['UPDATE', 'SELECT (A, B, C)'], 'SELECT', (1, 1)),
        (['UPDATE', 'REFERENCES (A, B, C)'], 'REFERENCES', (1, 1)),
        (['SELECT', 'UPDATE (A, B, C)'], 'UPDATE', (1, 1)),
        (['INSERT', 'SELECT (A', 'B)'], 'SELECT', (1, 2)),
        (['SELECT (A', 'B)', 'UPDATE'], 'SELECT', (0, 1)),
        (['INSERT', 'SELECT (A', 'B)', 'UPDATE'], 'SELECT', (1, 2)),
        (['INSERT (A, B)', 'SELECT (A', 'B)', 'UPDATE'], 'INSERT', (0, 0)),
        (['INSERT (A', 'B)', 'SELECT (A', 'B)', 'UPDATE'], 'INSERT', (0, 1)),
        (['INSERT (A', 'B)', 'SELECT (A', 'B)', 'UPDATE'], 'SELECT', (2, 3)),
        (['INSERT (A', 'B)', 'SELECT (A', 'C', 'B)', 'UPDATE'], 'SELECT', (2, 4)),
    ]
)
def test_has_grant_on_col(input_list, grant, output_tuple):
    """Tests has_grant_on_col function."""
    assert has_grant_on_col(input_list, grant) == output_tuple


@pytest.mark.parametrize(
    'input_,output',
    [
        ('SELECT (A)', 'SELECT (A)'),
        ('SELECT (`A`)', 'SELECT (A)'),
        ('UPDATE (B, A)', 'UPDATE (A, B)'),
        ('INSERT (`A`, `B`)', 'INSERT (A, B)'),
        ('REFERENCES (B, A)', 'REFERENCES (A, B)'),
        ('SELECT (`B`, `A`)', 'SELECT (A, B)'),
        ('SELECT (`B`, `A`, C)', 'SELECT (A, B, C)'),
    ]
)
def test_sort_column_order(input_, output):
    """Tests sort_column_order function."""
    assert sort_column_order(input_) == output


@pytest.mark.parametrize(
    'privileges,start,end,output',
    [
        (['UPDATE', 'SELECT (C, B, A)'], 1, 1, ['UPDATE', 'SELECT (A, B, C)']),
        (['INSERT', 'SELECT (A', 'B)'], 1, 2, ['INSERT', 'SELECT (A, B)']),
        (
            ['SELECT (`A`', 'B)', 'UPDATE', 'REFERENCES (B, A)'], 0, 1,
            ['SELECT (A, B)', 'UPDATE', 'REFERENCES (B, A)']),
        (
            ['INSERT', 'REFERENCES (`B`', 'A', 'C)', 'UPDATE (A', 'B)'], 1, 3,
            ['INSERT', 'REFERENCES (A, B, C)', 'UPDATE (A', 'B)']),
    ]
)
def test_handle_grant_on_col(privileges, start, end, output):
    """Tests handle_grant_on_col function."""
    assert handle_grant_on_col(privileges, start, end) == output


@pytest.mark.parametrize(
    'input_,expected',
    [
        (['SELECT'], ['SELECT']),
        (['SELECT (A, B)'], ['SELECT (A, B)']),
        (['SELECT (B, A)'], ['SELECT (A, B)']),
        (['UPDATE', 'SELECT (C, B, A)'], ['UPDATE', 'SELECT (A, B, C)']),
        (['INSERT', 'SELECT (A', 'B)'], ['INSERT', 'SELECT (A, B)']),
        (
            ['SELECT (`A`', 'B)', 'UPDATE', 'REFERENCES (B, A)'],
            ['SELECT (A, B)', 'UPDATE', 'REFERENCES (A, B)']),
        (
            ['INSERT', 'REFERENCES (`B`', 'A', 'C)', 'UPDATE (B', 'A)', 'DELETE'],
            ['INSERT', 'REFERENCES (A, B, C)', 'UPDATE (A, B)', 'DELETE']),
    ]
)
def test_normalize_col_grants(input_, expected):
    """Tests normalize_col_grants function."""
    assert normalize_col_grants(input_) == expected