from datetime import datetime
from unittest.mock import call

import pytest
from flask import url_for

from app.main.views.providers import add_monthly_traffic


def provider_json(overrides):
    provider = {
        'id': 'override-me',
        'active': True,
        'priority': 20,
        'display_name': 'Provider',
        'identifier': 'override-me',
        'notification_type': 'sms',
        'updated_at': None,
        'version': 1,
        'created_by_name': None,
        'supports_international': False,
        'current_month_billable_sms': 0,
    }

    provider.update(**overrides)
    return provider


@pytest.fixture
def sms_provider_1():
    return provider_json({
        'id': 'sms_provider_1-id',
        'priority': 20,
        'display_name': 'SMS Provider 1',
        'identifier': 'sms_provider_1',
        'notification_type': 'sms',
        'updated_at': datetime(2017, 1, 16, 15, 20, 40).isoformat(),
        'created_by_name': 'Test User',
        'current_month_billable_sms': 5020,
    })


@pytest.fixture
def sms_provider_2():
    return provider_json({
        'id': 'sms_provider_2-id',
        'priority': 10,
        'display_name': 'SMS Provider 2',
        'identifier': 'sms_provider_2',
        'notification_type': 'sms',
        'current_month_billable_sms': 6891,
    })


@pytest.fixture
def email_provider_1():
    return provider_json({
        'id': 'email_provider_1-id',
        'display_name': 'Email Provider 1',
        'identifier': 'email_provider_1',
        'notification_type': 'email',
    })


@pytest.fixture
def email_provider_2():
    return provider_json({
        'id': 'email_provider_2-id',
        'display_name': 'Email Provider 2',
        'identifier': 'email_provider_2',
        'notification_type': 'email',
    })


@pytest.fixture
def sms_provider_intl_1():
    return provider_json({
        'id': 'sms_provider_intl_1-id',
        'active': False,
        'display_name': 'SMS Provider Intl 1',
        'identifier': 'sms_provider_intl_1',
        'notification_type': 'sms',
        'supports_international': True,
    })


@pytest.fixture
def sms_provider_intl_2():
    return provider_json({
        'id': 'sms_provider_intl_2-id',
        'active': False,
        'display_name': 'SMS Provider Intl 2',
        'identifier': 'sms_provider_intl_2',
        'notification_type': 'sms',
        'supports_international': True,
    })


@pytest.fixture
def stub_providers(
    sms_provider_1,
    sms_provider_2,
    email_provider_1,
    email_provider_2,
    sms_provider_intl_1,
    sms_provider_intl_2,
):
    return {
        'provider_details': [
            sms_provider_1,
            sms_provider_2,
            email_provider_1,
            email_provider_2,
            sms_provider_intl_1,
            sms_provider_intl_2,
        ]
    }


@pytest.fixture
def stub_provider_history():
    return {
        'data': [
            {
                'id': 'f9af1ec7-58ef-4f7d-a6f4-5fe7e48644cb',
                'active': True,
                'priority': 20,
                'display_name': 'Foo',
                'identifier': 'foo',
                'notification_type': 'sms',
                'updated_at': None,
                'version': 2,
                'created_by': {
                    'email_address': 'test@foo.bar',
                    'name': 'Test User',
                    'id': '7cc1dddb-bcbc-4739-8fc1-61bedde3332a'
                },
                'supports_international': False
            },
            {
                'id': 'f9af1ec7-58ef-4f7d-a6f4-5fe7e48644cb',
                'active': True,
                'priority': 10,
                'display_name': 'Bar',
                'identifier': 'bar',
                'notification_type': 'sms',
                'updated_at': None,
                'version': 1,
                'created_by': None,
                'supports_international': False
            }
        ]
    }


def test_view_providers_shows_all_providers(
    client_request,
    platform_admin_user,
    mocker,
    stub_providers,
):
    mocker.patch('app.provider_client.get_all_providers', return_value=stub_providers)

    client_request.login(platform_admin_user)
    page = client_request.get('main.view_providers')

    h1 = [header.text.strip() for header in page.find_all('h1')]

    assert 'Providers' in h1

    h2 = [header.text.strip() for header in page.find_all('h2')]

    assert 'Email' in h2
    assert 'SMS' in h2

    tables = page.find_all('table')
    assert len(tables) == 3

    domestic_sms_table = tables[0]
    domestic_email_table = tables[1]
    international_sms_table = tables[2]

    domestic_sms_first_row = domestic_sms_table.tbody.find_all('tr')[0]
    table_data = domestic_sms_first_row.find_all('td')

    assert table_data[0].find_all("a")[0]['href'] == '/provider/sms_provider_1-id'
    assert table_data[0].text.strip() == "SMS Provider 1"
    assert table_data[1].text.strip() == "20"
    assert table_data[2].text.strip() == "42"
    assert table_data[3].text.strip() == "True"
    assert table_data[4].text.strip() == "16 January at 10:20am"
    assert table_data[5].text.strip() == "Test User"

    domestic_sms_second_row = domestic_sms_table.tbody.find_all('tr')[1]
    table_data = domestic_sms_second_row.find_all('td')

    assert table_data[0].find_all("a")[0]['href'] == '/provider/sms_provider_2-id'
    assert table_data[0].text.strip() == "SMS Provider 2"
    assert table_data[1].text.strip() == "10"
    assert table_data[2].text.strip() == "58"
    assert table_data[3].text.strip() == "True"
    assert table_data[4].text.strip() == "None"
    assert table_data[5].text.strip() == "None"

    domestic_email_first_row = domestic_email_table.tbody.find_all('tr')[0]
    domestic_email_table_data = domestic_email_first_row.find_all('td')

    assert domestic_email_table_data[0].find_all("a")[0]['href'] == '/provider/email_provider_1-id'
    assert domestic_email_table_data[0].text.strip() == "Email Provider 1"
    assert domestic_email_table_data[1].text.strip() == "True"
    assert domestic_email_table_data[2].text.strip() == "None"
    assert domestic_email_table_data[3].text.strip() == "None"

    domestic_email_second_row = domestic_email_table.tbody.find_all('tr')[1]
    domestic_email_table_data = domestic_email_second_row.find_all('td')

    assert domestic_email_table_data[0].find_all("a")[0]['href'] == '/provider/email_provider_2-id'
    assert domestic_email_table_data[0].text.strip() == "Email Provider 2"
    assert domestic_email_table_data[1].text.strip() == "True"
    assert domestic_email_table_data[2].text.strip() == "None"
    assert domestic_email_table_data[3].text.strip() == "None"

    international_sms_first_row = international_sms_table.tbody.find_all('tr')[0]
    table_data = international_sms_first_row.find_all('td')

    assert table_data[0].find_all("a")[0]['href'] == '/provider/sms_provider_intl_1-id'
    assert table_data[0].text.strip() == "SMS Provider Intl 1"
    assert table_data[1].text.strip() == "False"
    assert table_data[2].text.strip() == "None"
    assert table_data[3].text.strip() == "None"


def test_add_monthly_traffic():
    domestic_sms_providers = [{
        'identifier': 'mmg',
        'current_month_billable_sms': 27,
    }, {
        'identifier': 'firetext',
        'current_month_billable_sms': 5,
    }, {
        'identifier': 'loadtesting',
        'current_month_billable_sms': 0,
    }]

    add_monthly_traffic(domestic_sms_providers)

    assert domestic_sms_providers == [{
        'identifier': 'mmg',
        'current_month_billable_sms': 27,
        'monthly_traffic': 84
    }, {
        'identifier': 'firetext',
        'current_month_billable_sms': 5,
        'monthly_traffic': 16
    }, {
        'identifier': 'loadtesting',
        'current_month_billable_sms': 0,
        'monthly_traffic': 0
    }]


def test_view_provider_shows_version_history(
    client_request,
    platform_admin_user,
    mocker,
    stub_provider_history
):
    mocker.patch('app.provider_client.get_provider_versions', return_value=stub_provider_history)

    client_request.login(platform_admin_user)
    page = client_request.get(
        'main.view_provider', provider_id=stub_provider_history['data'][0]['id']
    )

    table = page.find('table')
    table_rows = table.find_all('tr')
    table_headings = table_rows[0].find_all('th')
    first_row = table_rows[1].find_all('td')
    second_row = table_rows[2].find_all('td')

    assert page.find_all('h1')[0].text.strip() == stub_provider_history['data'][0]["display_name"]
    assert len(table_rows) == 3

    assert table_headings[0].text.strip() == "Version"
    assert table_headings[1].text.strip() == "Last Updated"
    assert table_headings[2].text.strip() == "Updated By"
    assert table_headings[3].text.strip() == "Priority"
    assert table_headings[4].text.strip() == "Active"

    assert first_row[0].text.strip() == "2"
    assert first_row[1].text.strip() == "None"
    assert first_row[2].text.strip() == "Test User"
    assert first_row[3].text.strip() == "20"
    assert first_row[4].text.strip() == "True"

    assert second_row[0].text.strip() == "1"
    assert second_row[1].text.strip() == "None"
    assert second_row[2].text.strip() == "None"
    assert second_row[3].text.strip() == "10"
    assert second_row[4].text.strip() == "True"


def test_edit_sms_provider_provider_ratio(
    client_request,
    platform_admin_user,
    mocker,
    stub_providers,
    sms_provider_1
):
    mocker.patch(
        'app.provider_client.get_all_providers',
        return_value=stub_providers
    )

    client_request.login(platform_admin_user)
    page = client_request.get(
        '.edit_sms_provider_ratio',
    )

    inputs = page.select('.govuk-input[type="text"]')
    assert len(inputs) == 2

    first_input = page.select_one('.govuk-input[name="sms_provider_1"]')
    assert first_input.attrs['value'] == str(sms_provider_1['priority'])


def test_edit_sms_provider_provider_ratio_only_shows_active_providers(
    client_request,
    platform_admin_user,
    mocker,
    stub_providers,
    sms_provider_1,
):
    sms_provider_1['active'] = False

    mocker.patch(
        'app.provider_client.get_all_providers',
        return_value=stub_providers,
    )

    client_request.login(platform_admin_user)
    page = client_request.get(
        '.edit_sms_provider_ratio',
    )

    inputs = page.select('.govuk-input[type="text"]')
    assert len(inputs) == 1


@pytest.mark.parametrize('post_data, expected_calls', [
    (
        {
            'sms_provider_1': 10,
            'sms_provider_2': 90
        },
        [
            call('sms_provider_1-id', 10),
            call('sms_provider_2-id', 90),
        ],
    ),
    (
        {
            'sms_provider_1': 80,
            'sms_provider_2': 20
        },
        [
            call('sms_provider_1-id', 80),
            call('sms_provider_2-id', 20),
        ],
    ),
])
def test_edit_sms_provider_ratio_submit(
    client_request,
    platform_admin_user,
    mocker,
    post_data,
    expected_calls,
    stub_providers,
):
    mocker.patch(
        'app.provider_client.get_all_providers',
        return_value=stub_providers
    )
    mock_update_provider = mocker.patch(
        'app.provider_client.update_provider'
    )

    client_request.login(platform_admin_user)
    client_request.post(
        '.edit_sms_provider_ratio',
        _data=post_data,
        _expected_redirect=url_for(
            '.view_providers',
        ),
    )

    assert mock_update_provider.call_args_list == expected_calls


@pytest.mark.parametrize('post_data, expected_error', [
    (
        {
            'sms_provider_1': 90,
            'sms_provider_2': 20
        },
        "Must add up to 100%"
    ),
    (
        {
            'sms_provider_1': 101,
            'sms_provider_2': 20
        },
        "Must be between 0 and 100"
    ),
])
def test_edit_sms_provider_submit_invalid_percentages(
    client_request,
    platform_admin_user,
    mocker,
    post_data,
    expected_error,
    stub_providers,
):
    mocker.patch(
        'app.provider_client.get_all_providers',
        return_value=stub_providers
    )
    mock_update_provider = mocker.patch(
        'app.provider_client.update_provider'
    )

    client_request.login(platform_admin_user)
    page = client_request.post(
        '.edit_sms_provider_ratio',
        _data=post_data,
        _follow_redirects=True
    )

    assert expected_error in page.select_one('.govuk-error-message').text
    mock_update_provider.assert_not_called()