import re
import uuid
from io import BytesIO
from unittest.mock import ANY, Mock

import pytest
from flask import make_response, url_for
from freezegun import freeze_time
from requests import RequestException

from app.s3_client.s3_letter_upload_client import LetterMetadata
from app.utils import normalize_spaces
from tests.conftest import (
    SERVICE_ONE_ID,
    create_active_caseworking_user,
    create_active_user_with_permissions,
    create_platform_admin_user,
)


@pytest.mark.parametrize('extra_permissions', (
    pytest.param(
        [],
        marks=pytest.mark.xfail(raises=AssertionError),
    ),
    pytest.param(
        ['upload_letters'],
        marks=pytest.mark.xfail(raises=AssertionError),
    ),
    ['letter'],
    ['letter', 'upload_letters'],
))
def test_upload_letters_button_only_with_letters_permission(
    client_request,
    service_one,
    mock_get_uploads,
    mock_get_jobs,
    mock_get_no_contact_lists,
    extra_permissions,
):
    service_one['permissions'] += extra_permissions
    page = client_request.get('main.uploads', service_id=SERVICE_ONE_ID)
    assert page.find('a', text=re.compile('Upload a letter'))


@pytest.mark.parametrize('user', (
    create_platform_admin_user(),
    create_active_user_with_permissions(),
))
def test_all_users_have_upload_contact_list(
    client_request,
    mock_get_uploads,
    mock_get_jobs,
    mock_get_no_contact_lists,
    user,
):
    client_request.login(user)
    page = client_request.get('main.uploads', service_id=SERVICE_ONE_ID)
    button = page.find('a', text=re.compile('Upload an emergency contact list'))
    assert button
    assert button['href'] == url_for(
        'main.upload_contact_list', service_id=SERVICE_ONE_ID,
    )


@pytest.mark.parametrize('extra_permissions, expected_empty_message', (
    ([], (
        'You have not uploaded any files recently.'
    )),
    (['letter'], (
        'You have not uploaded any files recently. '
        'Upload a letter and Notify will print, pack and post it for you.'
    )),
))
def test_get_upload_hub_with_no_uploads(
    mocker,
    client_request,
    service_one,
    mock_get_no_uploads,
    mock_get_no_contact_lists,
    extra_permissions,
    expected_empty_message,
):
    mocker.patch('app.job_api_client.get_jobs', return_value={'data': []})
    service_one['permissions'] += extra_permissions
    page = client_request.get('main.uploads', service_id=SERVICE_ONE_ID)
    assert normalize_spaces(' '.join(
        paragraph.text for paragraph in page.select('main p')
    )) == expected_empty_message
    assert not page.select('.file-list-filename')


@freeze_time('2017-10-10 10:10:10')
def test_get_upload_hub_page(
    mocker,
    client_request,
    service_one,
    mock_get_uploads,
    mock_get_no_contact_lists,
):
    mocker.patch('app.job_api_client.get_jobs', return_value={'data': []})
    service_one['permissions'] += ['letter', 'upload_letters']
    page = client_request.get('main.uploads', service_id=SERVICE_ONE_ID)
    assert page.find('h1').text == 'Uploads'
    assert page.find('a', text=re.compile('Upload a letter')).attrs['href'] == url_for(
        'main.upload_letter', service_id=SERVICE_ONE_ID
    )

    uploads = page.select('tbody tr')

    assert len(uploads) == 3

    assert normalize_spaces(uploads[0].text.strip()) == (
        'Uploaded letters '
        'Printing today at 5:30pm '
        '33 letters'
    )
    assert uploads[0].select_one('a.file-list-filename-large')['href'] == url_for(
        'main.uploaded_letters',
        service_id=SERVICE_ONE_ID,
        letter_print_day='2017-10-10',
    )

    assert normalize_spaces(uploads[1].text.strip()) == (
        'some.csv '
        'Sent 1 January 2016 at 11:09am '
        '0 sending 8 delivered 2 failed'
    )
    assert uploads[1].select_one('a.file-list-filename-large')['href'] == (
        '/services/{}/jobs/job_id_1'.format(SERVICE_ONE_ID)
    )

    assert normalize_spaces(uploads[2].text.strip()) == (
        'some.pdf '
        'Sent 1 January 2016 at 11:09am '
        'Firstname Lastname '
        '123 Example Street'
    )
    assert normalize_spaces(str(uploads[2].select_one('.govuk-body'))) == (
        '<p class="govuk-body letter-recipient-summary"> '
        'Firstname Lastname<br/> '
        '123 Example Street<br/> '
        '</p>'
    )
    assert uploads[2].select_one('a.file-list-filename-large')['href'] == (
        '/services/{}/notification/letter_id_1'.format(SERVICE_ONE_ID)
    )


@freeze_time('2020-02-02 14:00')
def test_get_uploaded_letters(
    mocker,
    client_request,
    service_one,
    mock_get_uploaded_letters,
):
    page = client_request.get(
        'main.uploaded_letters',
        service_id=SERVICE_ONE_ID,
        letter_print_day='2020-02-02'
    )
    assert page.select_one('.govuk-back-link')['href'] == url_for(
        'main.uploads',
        service_id=SERVICE_ONE_ID,
    )
    assert normalize_spaces(
        page.select_one('h1').text
    ) == (
        'Uploaded letters'
    )
    assert normalize_spaces(
        page.select('main p')[0].text
    ) == (
        '1,234 letters'
    )
    assert normalize_spaces(
        page.select('main p')[1].text
    ) == (
        'Printing starts today at 5:30pm'
    )

    assert [
        normalize_spaces(row.text)
        for row in page.select('tbody tr')
    ] == [
        (
            'Homer-Simpson.pdf '
            '742 Evergreen Terrace '
            '2 February at 1:59pm'
        ),
        (
            'Kevin-McCallister.pdf '
            '671 Lincoln Avenue, Winnetka '
            '2 February at 12:59pm'
        ),
    ]

    assert [
        link['href'] for link in page.select('tbody tr a')
    ] == [
        url_for(
            'main.view_notification',
            service_id=SERVICE_ONE_ID,
            notification_id='03e34025-be54-4d43-8e6a-fb1ea0fd1f29',
            from_uploaded_letters='2020-02-02',
        ),
        url_for(
            'main.view_notification',
            service_id=SERVICE_ONE_ID,
            notification_id='fc090d91-e761-4464-9041-9c4594c96a35',
            from_uploaded_letters='2020-02-02',
        ),
    ]

    next_page_link = page.select_one('a[rel=next]')
    prev_page_link = page.select_one('a[rel=previous]')
    assert next_page_link['href'] == url_for(
        'main.uploaded_letters', service_id=SERVICE_ONE_ID, letter_print_day='2020-02-02', page=2
    )
    assert normalize_spaces(next_page_link.text) == (
        'Next page '
        'page 2'
    )
    assert prev_page_link['href'] == url_for(
        'main.uploaded_letters', service_id=SERVICE_ONE_ID, letter_print_day='2020-02-02', page=0
    )
    assert normalize_spaces(prev_page_link.text) == (
        'Previous page '
        'page 0'
    )

    mock_get_uploaded_letters.assert_called_once_with(
        SERVICE_ONE_ID,
        letter_print_day='2020-02-02',
        page=1,
    )


@freeze_time('2020-02-02 14:00')
def test_get_empty_uploaded_letters_page(
    mocker,
    client_request,
    service_one,
    mock_get_no_uploaded_letters,
):
    page = client_request.get(
        'main.uploaded_letters',
        service_id=SERVICE_ONE_ID,
        letter_print_day='2020-02-02'
    )
    page.select_one('main table')

    assert not page.select('tbody tr')
    assert not page.select_one('a[rel=next]')
    assert not page.select_one('a[rel=previous]')


@freeze_time('2020-02-02')
def test_get_uploaded_letters_passes_through_page_argument(
    mocker,
    client_request,
    service_one,
    mock_get_uploaded_letters,
):
    client_request.get(
        'main.uploaded_letters',
        service_id=SERVICE_ONE_ID,
        letter_print_day='2020-02-02',
        page=99,
    )
    mock_get_uploaded_letters.assert_called_once_with(
        SERVICE_ONE_ID,
        letter_print_day='2020-02-02',
        page=99,
    )


def test_get_uploaded_letters_404s_for_bad_page_arguments(
    mocker,
    client_request,
):
    client_request.get(
        'main.uploaded_letters',
        service_id=SERVICE_ONE_ID,
        letter_print_day='2020-02-02',
        page='one',
        _expected_status=404,
    )


def test_get_uploaded_letters_404s_for_invalid_date(
    mocker,
    client_request,
):
    client_request.get(
        'main.uploaded_letters',
        service_id=SERVICE_ONE_ID,
        letter_print_day='1234-56-78',
        _expected_status=404,
    )


def test_get_upload_letter(client_request):
    page = client_request.get('main.upload_letter', service_id=SERVICE_ONE_ID)

    assert page.find('h1').text == 'Upload a letter'
    assert page.find('input', class_='file-upload-field')
    assert page.select('main button[type=submit]')
    assert normalize_spaces(page.find('label', class_='file-upload-button').text) == 'Choose file'


@pytest.mark.parametrize('extra_permissions, expected_allow_international', (
    ([], False),
    (['international_letters'], True),
))
def test_post_upload_letter_redirects_for_valid_file(
    mocker,
    active_user_with_permissions,
    service_one,
    client_request,
    fake_uuid,
    extra_permissions,
    expected_allow_international,
):
    mocker.patch('uuid.uuid4', return_value=fake_uuid)
    antivirus_mock = mocker.patch('app.main.views.uploads.antivirus_client.scan', return_value=True)
    mock_sanitise = mocker.patch(
        'app.main.views.uploads.sanitise_letter',
        return_value=Mock(
            content='The sanitised content',
            json=lambda: {'file': 'VGhlIHNhbml0aXNlZCBjb250ZW50', 'recipient_address': 'The Queen'}
        )
    )
    mock_s3 = mocker.patch('app.main.views.uploads.upload_letter_to_s3')
    mocker.patch('app.main.views.uploads.get_letter_metadata', return_value=LetterMetadata({
        'filename': 'tests/test_pdf_files/one_page_pdf.pdf',
        'page_count': '1',
        'status': 'valid',
        'recipient': 'The Queen'
    }))
    mocker.patch('app.main.views.uploads.service_api_client.get_precompiled_template')

    service_one['restricted'] = False
    service_one['permissions'] += extra_permissions
    client_request.login(active_user_with_permissions, service=service_one)

    with open('tests/test_pdf_files/one_page_pdf.pdf', 'rb') as file:
        page = client_request.post(
            'main.upload_letter',
            service_id=SERVICE_ONE_ID,
            _data={'file': file},
            _follow_redirects=True,
        )
    assert antivirus_mock.called

    mock_s3.assert_called_once_with(
        b'The sanitised content',
        file_location='service-{}/{}.pdf'.format(SERVICE_ONE_ID, fake_uuid),
        status='valid',
        page_count=1,
        filename='tests/test_pdf_files/one_page_pdf.pdf',
        recipient='The Queen',
    )
    mock_sanitise.assert_called_once_with(
        ANY,
        allow_international_letters=expected_allow_international,
    )

    assert 'The Queen' in page.find('div', class_='js-stick-at-bottom-when-scrolling').text
    assert page.find('h1').text == 'tests/test_pdf_files/one_page_pdf.pdf'
    assert not page.find(id='validation-error-message')

    assert not page.find('input', {'name': 'file_id'})
    assert normalize_spaces(page.select('main button[type=submit]')[0].text) == 'Send 1 letter'


def test_post_upload_letter_shows_letter_preview_for_valid_file(
    mocker,
    active_user_with_permissions,
    service_one,
    client_request,
    fake_uuid,
):
    letter_template = {'template_type': 'letter',
                       'reply_to_text': '',
                       'postage': 'second',
                       'subject': 'hi',
                       'content': 'my letter'}

    mocker.patch('uuid.uuid4', return_value=fake_uuid)
    mocker.patch('app.main.views.uploads.antivirus_client.scan', return_value=True)
    mocker.patch(
        'app.main.views.uploads.sanitise_letter',
        return_value=Mock(
            content='The sanitised content',
            json=lambda: {'file': 'VGhlIHNhbml0aXNlZCBjb250ZW50', 'recipient_address': 'The Queen'}
        )
    )
    mocker.patch('app.main.views.uploads.upload_letter_to_s3')
    mocker.patch('app.main.views.uploads.pdf_page_count', return_value=3)
    mocker.patch('app.main.views.uploads.get_letter_metadata', return_value=LetterMetadata({
        'filename': 'tests/test_pdf_files/one_page_pdf.pdf',
        'page_count': '3',
        'status': 'valid',
        'recipient': 'The Queen'
    }))
    mocker.patch('app.main.views.uploads.service_api_client.get_precompiled_template', return_value=letter_template)

    service_one['restricted'] = False
    client_request.login(active_user_with_permissions, service=service_one)

    with open('tests/test_pdf_files/one_page_pdf.pdf', 'rb') as file:
        page = client_request.post(
            'main.upload_letter',
            service_id=SERVICE_ONE_ID,
            _data={'file': file},
            _follow_redirects=True,
        )

    assert page.find('h1').text == 'tests/test_pdf_files/one_page_pdf.pdf'
    assert len(page.select('.letter-postage')) == 0
    # Check postage radios exists and second class is checked by default
    assert page.find('input', id="postage-0", value="first")
    assert page.find('input', id="postage-1", value="second").has_attr('checked')

    letter_images = page.select('main img')
    assert len(letter_images) == 3

    for page_no, img in enumerate(letter_images, start=1):
        assert img['src'] == url_for(
            '.view_letter_upload_as_preview',
            service_id=SERVICE_ONE_ID,
            file_id=fake_uuid,
            page=page_no)


def test_upload_international_letter_shows_preview_with_no_choice_of_postage(
    mocker,
    active_user_with_permissions,
    service_one,
    client_request,
    fake_uuid,
):
    letter_template = {
        'template_type': 'letter',
        'reply_to_text': '',
        'postage': 'second',
        'subject': 'hi',
        'content': 'my letter',
    }

    mocker.patch('uuid.uuid4', return_value=fake_uuid)
    mocker.patch('app.main.views.uploads.antivirus_client.scan', return_value=True)
    mocker.patch('app.main.views.uploads.sanitise_letter', return_value=Mock(
        content='The sanitised content',
        json=lambda: {'file': 'VGhlIHNhbml0aXNlZCBjb250ZW50', 'recipient_address': 'The Queen'}
    ))
    mocker.patch('app.main.views.uploads.upload_letter_to_s3')
    mocker.patch('app.main.views.uploads.pdf_page_count', return_value=3)
    mocker.patch('app.main.views.uploads.get_letter_metadata', return_value=LetterMetadata({
        'filename': 'tests/test_pdf_files/one_page_pdf.pdf',
        'page_count': '3',
        'status': 'valid',
        'recipient': (
            '123 Example Street\n'
            'Andorra la Vella\n'
            'Andorra'
        ),
    }))
    mocker.patch('app.main.views.uploads.service_api_client.get_precompiled_template', return_value=letter_template)

    service_one['restricted'] = False
    client_request.login(active_user_with_permissions, service=service_one)

    with open('tests/test_pdf_files/one_page_pdf.pdf', 'rb') as file:
        page = client_request.post(
            'main.upload_letter',
            service_id=SERVICE_ONE_ID,
            _data={'file': file},
            _follow_redirects=True,
        )

    assert page.find('h1').text == 'tests/test_pdf_files/one_page_pdf.pdf'
    assert not page.select('.letter-postage')
    assert not page.select('input[type=radio]')
    assert normalize_spaces(
        page.select_one('.js-stick-at-bottom-when-scrolling').text
    ) == (
        'Recipient: 123 Example Street, Andorra la Vella, Andorra '
        'Postage: international '
        'Send 1 letter'
    )


def test_post_upload_letter_shows_error_when_file_is_not_a_pdf(client_request):
    with open('tests/non_spreadsheet_files/actually_a_png.csv', 'rb') as file:
        page = client_request.post(
            'main.upload_letter',
            service_id=SERVICE_ONE_ID,
            _data={'file': file},
            _expected_status=200
        )
    assert page.find('h1').text == 'Wrong file type'
    assert page.find('div', class_='banner-dangerous').find('p').text == 'Save your letter as a PDF and try again.'
    assert normalize_spaces(page.find('label', class_='file-upload-button').text) == 'Upload your file again'


def test_post_upload_letter_shows_error_when_no_file_uploaded(client_request):
    page = client_request.post(
        'main.upload_letter',
        service_id=SERVICE_ONE_ID,
        _data={'file': ''},
        _expected_status=200
    )
    assert page.find('div', class_='banner-dangerous').find('h1').text == 'You need to choose a file to upload'
    assert normalize_spaces(page.find('label', class_='file-upload-button').text) == 'Upload your file again'


def test_post_upload_letter_shows_error_when_file_contains_virus(mocker, client_request):
    mocker.patch('app.main.views.uploads.antivirus_client.scan', return_value=False)

    with open('tests/test_pdf_files/one_page_pdf.pdf', 'rb') as file:
        page = client_request.post(
            'main.upload_letter',
            service_id=SERVICE_ONE_ID,
            _data={'file': file},
            _expected_status=400
        )
    assert page.find('div', class_='banner-dangerous').find('h1').text == 'Your file contains a virus'
    assert normalize_spaces(page.find('label', class_='file-upload-button').text) == 'Upload your file again'


def test_post_choose_upload_file_when_file_is_too_big(mocker, client_request):
    mocker.patch('app.main.views.uploads.antivirus_client.scan', return_value=True)

    with open('tests/test_pdf_files/big.pdf', 'rb') as file:
        page = client_request.post(
            'main.upload_letter',
            service_id=SERVICE_ONE_ID,
            _data={'file': file},
            _expected_status=400
        )
    assert page.find('div', class_='banner-dangerous').find('h1').text == 'Your file is too big'
    assert page.find('div', class_='banner-dangerous').find('p').text == 'Files must be smaller than 2MB.'
    assert normalize_spaces(page.find('label', class_='file-upload-button').text) == 'Upload your file again'


def test_post_choose_upload_file_when_file_is_malformed(mocker, client_request):
    mocker.patch('app.main.views.uploads.antivirus_client.scan', return_value=True)

    with open('tests/test_pdf_files/no_eof_marker.pdf', 'rb') as file:
        page = client_request.post(
            'main.upload_letter',
            service_id=SERVICE_ONE_ID,
            _data={'file': file},
            _expected_status=400
        )
    assert page.find('div', class_='banner-dangerous').find('h1').text == "There’s a problem with your file"
    assert page.find(
        'div', class_='banner-dangerous'
    ).find('p').text == 'Notify cannot read this PDF.Save a new copy of your file and try again.'
    assert normalize_spaces(page.find('label', class_='file-upload-button').text) == 'Upload your file again'


def test_post_upload_letter_with_invalid_file(mocker, client_request, fake_uuid):
    mocker.patch('uuid.uuid4', return_value=fake_uuid)
    mocker.patch('app.main.views.uploads.antivirus_client.scan', return_value=True)
    mock_s3 = mocker.patch('app.main.views.uploads.upload_letter_to_s3')

    mock_sanitise_response = Mock()
    mock_sanitise_response.raise_for_status.side_effect = RequestException(response=Mock(status_code=400))
    mock_sanitise_response.json = lambda: {
        "message": "content-outside-printable-area",
        "invalid_pages": [1]
    }
    mocker.patch('app.main.views.uploads.sanitise_letter', return_value=mock_sanitise_response)
    mocker.patch('app.main.views.uploads.service_api_client.get_precompiled_template')
    mocker.patch('app.main.views.uploads.get_letter_metadata', return_value=LetterMetadata({
        'filename': 'tests/test_pdf_files/one_page_pdf.pdf', 'page_count': '1', 'status': 'invalid',
        'message': 'content-outside-printable-area', 'invalid_pages': '[1]'}))

    with open('tests/test_pdf_files/one_page_pdf.pdf', 'rb') as file:
        file_contents = file.read()
        file.seek(0)

        page = client_request.post(
            'main.upload_letter',
            service_id=SERVICE_ONE_ID,
            _data={'file': file},
            _follow_redirects=True
        )

        mock_s3.assert_called_once_with(
            file_contents,
            file_location='service-{}/{}.pdf'.format(SERVICE_ONE_ID, fake_uuid),
            status='invalid',
            page_count=1,
            filename='tests/test_pdf_files/one_page_pdf.pdf',
            invalid_pages=[1],
            message='content-outside-printable-area'
        )

    assert page.find('div', class_='banner-dangerous').find('h1', {"data-error-type": 'content-outside-printable-area'})
    assert not page.find('button', {'class': 'page-footer__button', 'type': 'submit'})


def test_post_upload_letter_shows_letter_preview_for_invalid_file(mocker, client_request, fake_uuid):
    letter_template = {'template_type': 'letter',
                       'reply_to_text': '',
                       'postage': 'first',
                       'subject': 'hi',
                       'content': 'my letter'}

    mocker.patch('uuid.uuid4', return_value=fake_uuid)
    mocker.patch('app.main.views.uploads.antivirus_client.scan', return_value=True)
    mocker.patch('app.main.views.uploads.upload_letter_to_s3')
    mock_sanitise_response = Mock()
    mock_sanitise_response.raise_for_status.side_effect = RequestException(response=Mock(status_code=400))
    mock_sanitise_response.json = lambda: {"message": "template preview error", "recipient_address": "The Queen"}
    mocker.patch('app.main.views.uploads.sanitise_letter', return_value=mock_sanitise_response)
    mocker.patch('app.main.views.uploads.service_api_client.get_precompiled_template', return_value=letter_template)
    mocker.patch('app.main.views.uploads.get_letter_metadata', return_value=LetterMetadata({
        'filename': 'tests/test_pdf_files/one_page_pdf.pdf', 'page_count': '1', 'status': 'invalid',
        'message': 'template-preview-error'}))

    with open('tests/test_pdf_files/one_page_pdf.pdf', 'rb') as file:
        page = client_request.post(
            'main.upload_letter',
            service_id=SERVICE_ONE_ID,
            _data={'file': file},
            _follow_redirects=True,
        )

    assert 'The Queen' not in page.text
    assert len(page.select('.letter-postage')) == 0

    assert page.find("a", {"class": "govuk-back-link"})["href"] == "/services/{}/upload-letter".format(SERVICE_ONE_ID)
    assert page.find("label", {"class": "file-upload-button"})

    letter_images = page.select('main img')
    assert len(letter_images) == 1
    assert letter_images[0]['src'] == url_for(
        '.view_letter_upload_as_preview',
        service_id=SERVICE_ONE_ID,
        file_id=fake_uuid,
        page=1
    )


def test_post_upload_letter_does_not_upload_to_s3_if_template_preview_raises_unknown_error(
    mocker,
    client_request,
    fake_uuid,
):
    mocker.patch('uuid.uuid4', return_value=fake_uuid)
    mocker.patch('app.main.views.uploads.antivirus_client.scan', return_value=True)
    mock_s3 = mocker.patch('app.main.views.uploads.upload_letter_to_s3')

    mocker.patch('app.main.views.uploads.sanitise_letter', side_effect=RequestException())

    with pytest.raises(RequestException):
        with open('tests/test_pdf_files/one_page_pdf.pdf', 'rb') as file:
            client_request.post(
                'main.upload_letter',
                service_id=SERVICE_ONE_ID,
                _data={'file': file},
                _follow_redirects=True
            )

    assert not mock_s3.called


def test_uploaded_letter_preview(
    mocker,
    active_user_with_permissions,
    service_one,
    client_request,
    fake_uuid,
):
    mocker.patch('app.main.views.uploads.service_api_client')
    mocker.patch('app.main.views.uploads.get_letter_metadata', return_value=LetterMetadata({
        'filename': 'my_encoded_filename%C2%A3.pdf',
        'page_count': '1',
        'status': 'valid',
        'recipient': 'Bugs Bunny%0A123 Big Hole%0DLooney Town'  # 'Bugs Bunny%0A123 Big Hole\rLooney Town' url encoded
    }))

    service_one['restricted'] = False
    client_request.login(active_user_with_permissions, service=service_one)

    page = client_request.get(
        'main.uploaded_letter_preview',
        service_id=SERVICE_ONE_ID,
        file_id=fake_uuid,
    )

    assert page.find('h1').text == 'my_encoded_filename£.pdf'
    assert page.find('div', class_='letter-sent')
    assert not page.find("label", {"class": "file-upload-button"})
    assert page.find('button', {'class': 'page-footer__button', 'type': 'submit'})


def test_uploaded_letter_preview_does_not_show_send_button_if_service_in_trial_mode(
    mocker,
    client_request,
    fake_uuid,
):
    mocker.patch('app.main.views.uploads.service_api_client')
    mocker.patch('app.main.views.uploads.get_letter_metadata', return_value=LetterMetadata({
        'filename': 'my_letter.pdf', 'page_count': '1', 'status': 'valid', 'recipient': 'The Queen'}))

    # client_request uses service_one, which is in trial mode
    page = client_request.get(
        'main.uploaded_letter_preview',
        service_id=SERVICE_ONE_ID,
        file_id=fake_uuid,
        original_filename='my_letter.pdf',
        page_count=1,
        status='valid',
        error={},
        _test_page_title=False,
    )

    assert normalize_spaces(page.find('h1').text) == 'You cannot send this letter'
    assert page.find('div', class_='letter-sent')
    assert normalize_spaces(
        page.select_one('.js-stick-at-bottom-when-scrolling p').text
    ) == (
        'Recipient: The Queen'
    )
    assert not page.find('form')
    assert len(page.select('main button[type=submit]')) == 0


@pytest.mark.parametrize('invalid_pages, page_requested, overlay_expected', (
    ('[1, 2]', 1, True),
    ('[1, 2]', 2, True),
    ('[1, 2]', 3, False),
    ('[]', 1, False),
))
def test_uploaded_letter_preview_image_shows_overlay_when_content_outside_printable_area_on_a_page(
    mocker,
    logged_in_client,
    mock_get_service,
    fake_uuid,
    invalid_pages,
    page_requested,
    overlay_expected,
):
    mocker.patch(
        'app.main.views.uploads.get_letter_pdf_and_metadata',
        return_value=('pdf_file', {
            'message': 'content-outside-printable-area',
            'invalid_pages': invalid_pages,
        })
    )
    template_preview_mock_valid = mocker.patch(
        'app.main.views.uploads.TemplatePreview.from_valid_pdf_file',
        return_value=make_response('page.html', 200)
    )
    template_preview_mock_invalid = mocker.patch(
        'app.main.views.uploads.TemplatePreview.from_invalid_pdf_file',
        return_value=make_response('page.html', 200)
    )

    logged_in_client.get(
        url_for(
            'main.view_letter_upload_as_preview',
            file_id=fake_uuid,
            service_id=SERVICE_ONE_ID,
            page=page_requested,
        )
    )

    if overlay_expected:
        template_preview_mock_invalid.assert_called_once_with('pdf_file', page_requested)
        assert template_preview_mock_valid.called is False
    else:
        template_preview_mock_valid.assert_called_once_with('pdf_file', page_requested)
        assert template_preview_mock_invalid.called is False


@pytest.mark.parametrize(
    'metadata', [
        {'message': 'letter-not-a4-portrait-oriented'},
        {'message': 'letter-too-long'},
        {},
    ]
)
def test_uploaded_letter_preview_image_does_not_show_overlay_if_no_content_outside_printable_area(
    mocker,
    logged_in_client,
    mock_get_service,
    metadata,
    fake_uuid,
):
    mocker.patch(
        'app.main.views.uploads.get_letter_pdf_and_metadata',
        return_value=('pdf_file', metadata)
    )
    template_preview_mock = mocker.patch(
        'app.main.views.uploads.TemplatePreview.from_valid_pdf_file',
        return_value=make_response('page.html', 200))

    logged_in_client.get(
        url_for('main.view_letter_upload_as_preview', file_id=fake_uuid, service_id=SERVICE_ONE_ID, page=1)
    )

    template_preview_mock.assert_called_once_with('pdf_file', 1)


def test_uploaded_letter_preview_image_400s_for_bad_page_type(
    client_request,
    fake_uuid,
):
    client_request.get(
        'main.view_letter_upload_as_preview',
        file_id=fake_uuid,
        service_id=SERVICE_ONE_ID,
        page='foo',
        _test_page_title=False,
        _expected_status=400,
    )


@pytest.mark.parametrize('address, post_data, expected_postage', (
    (
        'address',
        {'filename': 'my_file.pdf', 'postage': 'first'},
        'first',
    ),
    (
        'address',
        {'filename': 'my_file.pdf'},
        'second',
    ),
    (
        '123 Example Street\nLiechtenstein',
        {'filename': 'my_file.pdf', 'postage': 'first'},
        'europe',
    ),
    (
        '123 Example Street\nLiechtenstein',
        {'filename': 'my_file.pdf'},
        'europe',
    ),
    (
        '123 Example Street\nLesotho',
        {'filename': 'my_file.pdf'},
        'rest-of-world',
    ),
))
def test_send_uploaded_letter_sends_letter_and_redirects_to_notification_page(
    mocker,
    service_one,
    client_request,
    fake_uuid,
    address,
    post_data,
    expected_postage,
):
    metadata = LetterMetadata({
        'filename': 'my_file.pdf',
        'page_count': '1',
        'status': 'valid',
        'recipient': address,
    })

    mocker.patch('app.main.views.uploads.get_letter_pdf_and_metadata', return_value=('file', metadata))
    mock_send = mocker.patch('app.main.views.uploads.notification_api_client.send_precompiled_letter')
    mocker.patch('app.main.views.uploads.get_letter_metadata', return_value=metadata)

    service_one['permissions'] = ['letter', 'upload_letters']

    client_request.post(
        'main.send_uploaded_letter',
        service_id=SERVICE_ONE_ID,
        file_id=fake_uuid,
        _data=post_data,
        _expected_redirect=url_for(
            'main.view_notification',
            service_id=SERVICE_ONE_ID,
            notification_id=fake_uuid,
            _external=True
        )
    )
    mock_send.assert_called_once_with(
        SERVICE_ONE_ID,
        'my_file.pdf',
        fake_uuid,
        expected_postage,
        address,
    )


@pytest.mark.parametrize('permissions', [
    ['email'],
    ['letter'],
    ['upload_letters'],
])
def test_send_uploaded_letter_when_service_does_not_have_correct_permissions(
    mocker,
    service_one,
    client_request,
    permissions,
    fake_uuid,
):
    mocker.patch('app.main.views.uploads.get_letter_pdf_and_metadata', return_value=('file', {'status': 'valid'}))
    mock_send = mocker.patch('app.main.views.uploads.notification_api_client.send_precompiled_letter')

    service_one['permissions'] = permissions

    client_request.post(
        'main.send_uploaded_letter',
        service_id=SERVICE_ONE_ID,
        file_id=fake_uuid,
        _data={'filename': 'my_file.pdf', 'postage': 'first'},
        _expected_status=403
    )
    assert not mock_send.called


def test_send_uploaded_letter_when_metadata_states_pdf_is_invalid(
    mocker, service_one, client_request, fake_uuid,
):
    mock_send = mocker.patch('app.main.views.uploads.notification_api_client.send_precompiled_letter')
    mocker.patch(
        'app.main.views.uploads.get_letter_metadata',
        return_value=LetterMetadata(
            {
                'filename': 'my_file.pdf', 'page_count': '3', 'status': 'invalid',
                'message': 'error', 'invalid_pages': '[1]'
            }
        )
    )

    service_one['permissions'] = ['letter', 'upload_letters']

    client_request.post(
        'main.send_uploaded_letter',
        service_id=SERVICE_ONE_ID,
        file_id=fake_uuid,
        _data={'filename': 'my_file.pdf'},
        _expected_status=403
    )
    assert not mock_send.called


@pytest.mark.parametrize('user', (
    create_active_caseworking_user(),
    create_active_user_with_permissions(),
))
@freeze_time("2012-12-12 12:12")
def test_uploads_page_shows_scheduled_jobs(
    mocker,
    client_request,
    mock_get_no_uploads,
    mock_get_jobs,
    mock_get_no_contact_lists,
    user,
):
    client_request.login(user)
    page = client_request.get('main.uploads', service_id=SERVICE_ONE_ID)

    assert [
        normalize_spaces(row.text) for row in page.select('tr')
    ] == [
        (
            'File Status'
        ),
        (
            'even_later.csv '
            'Sending 1 January 2016 at 11:09pm '
            '1 text message waiting to send'
        ),
        (
            'send_me_later.csv '
            'Sending 1 January 2016 at 11:09am '
            '1 text message waiting to send'
        ),
    ]
    assert not page.select('.table-empty-message')


@freeze_time('2020-03-15')
def test_uploads_page_shows_contact_lists_first(
    mocker,
    client_request,
    mock_get_no_uploads,
    mock_get_jobs,
    mock_get_contact_lists,
):
    page = client_request.get('main.uploads', service_id=SERVICE_ONE_ID)

    assert [
        normalize_spaces(row.text) for row in page.select('tr')
    ] == [
        (
            'File Status'
        ),
        (
            'phone number list.csv '
            'Uploaded 13 March at 1:00pm '
            '123 saved phone numbers'
        ),
        (
            'EmergencyContactList.xls '
            'Uploaded 13 March at 10:59am '
            '100 saved email addresses'
        ),
        (
            'even_later.csv '
            'Sending 1 January 2016 at 11:09pm '
            '1 text message waiting to send'
        ),
        (
            'send_me_later.csv '
            'Sending 1 January 2016 at 11:09am '
            '1 text message waiting to send'
        ),
    ]
    assert page.select_one('.file-list-filename-large')['href'] == url_for(
        'main.contact_list',
        service_id=SERVICE_ONE_ID,
        contact_list_id='d7b0bd1a-d1c7-4621-be5c-3c1b4278a2ad',
    )


def test_get_uploads_shows_pagination(
    client_request,
    active_user_with_permissions,
    mock_get_jobs,
    mock_get_uploads,
    mock_get_no_contact_lists,
):
    page = client_request.get('main.uploads', service_id=SERVICE_ONE_ID)

    assert normalize_spaces(page.select_one('.next-page').text) == (
        'Next page '
        'page 2'
    )
    assert normalize_spaces(page.select_one('.previous-page').text) == (
        'Previous page '
        'page 0'
    )


def test_upload_contact_list_page(client_request):
    page = client_request.get(
        'main.upload_contact_list',
        service_id=SERVICE_ONE_ID,
    )
    assert 'action' not in page.select_one('form')
    assert page.select_one('form input')['name'] == 'file'
    assert page.select_one('form input')['type'] == 'file'

    assert normalize_spaces(page.select('.spreadsheet')[0].text) == (
        'Example A '
        '1 email address '
        '2 test@example.gov.uk'
    )
    assert normalize_spaces(page.select('.spreadsheet')[1].text) == (
        'Example A '
        '1 phone number '
        '2 07700 900123'
    )


@pytest.mark.parametrize('file_contents, expected_error, expected_thead, expected_tbody,', [
    (
        """
            telephone,name
            +447700900986
        """,
        (
            'Your file has too many columns '
            'It needs to have 1 column, called ‘email address’ or ‘phone number’. '
            'Right now it has 2 columns called ‘telephone’ and ‘name’. '
            'Skip to file contents'
        ),
        'Row in file 1 telephone name',
        '2 +447700900986',
    ),
    (
        """
            phone number, email address
            +447700900986, test@example.com
        """,
        (
            'Your file has too many columns '
            'It needs to have 1 column, called ‘email address’ or ‘phone number’. '
            'Right now it has 2 columns called ‘phone number’ and ‘email address’. '
            'Skip to file contents'
        ),
        'Row in file 1 phone number email address',
        '2 +447700900986 test@example.com',
    ),
    (
        """
            email address
            +447700900986
        """,
        (
            'There’s a problem with invalid.csv '
            'You need to fix 1 email address. '
            'Skip to file contents'
        ),
        'Row in file 1 email address',
        '2 Not a valid email address +447700900986',
    ),
    (
        """
            phone number
            test@example.com
        """,
        (
            'There’s a problem with invalid.csv '
            'You need to fix 1 phone number. '
            'Skip to file contents'
        ),
        'Row in file 1 phone number',
        '2 Must not contain letters or symbols test@example.com',
    ),
    (
        """
            phone number, phone number, PHONE_NUMBER
            +447700900111,+447700900222,+447700900333,
        """,
        (
            'Your file has too many columns '
            'It needs to have 1 column, called ‘email address’ or ‘phone number’. '
            'Right now it has 3 columns called ‘phone number’, ‘phone number’ and ‘PHONE_NUMBER’. '
            'Skip to file contents'
        ),
        'Row in file 1 phone number phone number PHONE_NUMBER',
        '2 +447700900333 +447700900333 +447700900333',
    ),
    (
        """
            phone number
        """,
        (
            'Your file is missing some rows '
            'It needs at least one row of data. '
            'Skip to file contents'
        ),
        'Row in file 1 phone number',
        '',
    ),
    (
        "+447700900986",
        (
            'Your file is missing some rows '
            'It needs at least one row of data, in a column called '
            '‘email address’ or ‘phone number’. '
            'Skip to file contents'
        ),
        'Row in file 1 +447700900986',
        '',
    ),
    (
        "",
        (
            'Your file is missing some rows '
            'It needs at least one row of data, in a column called '
            '‘email address’ or ‘phone number’. '
            'Skip to file contents'
        ),
        'Row in file 1',
        '',
    ),
    (
        """
            phone number
            +447700900986

            +447700900986
        """,
        (
            'There’s a problem with invalid.csv '
            'You need to enter missing data in 1 row. '
            'Skip to file contents'
        ),
        'Row in file 1 phone number',
        (
            '3 Missing'
        )
    ),
    (
        """
            phone number
            +447700900
        """,
        (
            'There’s a problem with invalid.csv '
            'You need to fix 1 phone number. '
            'Skip to file contents'
        ),
        'Row in file 1 phone number',
        '2 Not enough digits +447700900',
    ),
    (
        """
            email address
            ok@example.com
            bad@example1
            bad@example2
        """,
        (
            'There’s a problem with invalid.csv '
            'You need to fix 2 email addresses. '
            'Skip to file contents'
        ),
        'Row in file 1 email address',
        (
            '3 Not a valid email address bad@example1 '
            '4 Not a valid email address bad@example2'
        ),
    ),
])
def test_upload_csv_file_shows_error_banner(
    client_request,
    mocker,
    mock_s3_upload,
    mock_get_job_doesnt_exist,
    mock_get_users_by_service,
    fake_uuid,
    file_contents,
    expected_error,
    expected_thead,
    expected_tbody,
):
    mock_upload = mocker.patch(
        'app.models.contact_list.s3upload',
        return_value=fake_uuid,
    )
    mock_download = mocker.patch(
        'app.models.contact_list.s3download',
        return_value=file_contents,
    )

    page = client_request.post(
        'main.upload_contact_list',
        service_id=SERVICE_ONE_ID,
        _data={'file': (BytesIO(''.encode('utf-8')), 'invalid.csv')},
        _follow_redirects=True,
    )
    mock_upload.assert_called_once_with(
        SERVICE_ONE_ID,
        {'data': '', 'file_name': 'invalid.csv'},
        ANY,
        bucket='test-contact-list',
    )
    mock_download.assert_called_once_with(
        SERVICE_ONE_ID,
        fake_uuid,
        bucket='test-contact-list',
    )

    assert normalize_spaces(page.select_one('.banner-dangerous').text) == expected_error

    assert page.select_one('form')['action'] == url_for(
        'main.upload_contact_list',
        service_id=SERVICE_ONE_ID,
    )
    assert page.select_one('form input')['type'] == 'file'

    assert normalize_spaces(page.select_one('thead').text) == expected_thead
    assert normalize_spaces(page.select_one('tbody').text) == expected_tbody


def test_upload_csv_file_shows_error_banner_for_too_many_rows(
    client_request,
    mocker,
    mock_s3_upload,
    mock_get_job_doesnt_exist,
    mock_get_users_by_service,
    fake_uuid,
):
    mocker.patch('app.models.contact_list.s3upload', return_value=fake_uuid)
    mocker.patch('app.models.contact_list.s3download', return_value='\n'.join(
        ['phone number'] + (['07700900986'] * 50001)
    ))

    page = client_request.post(
        'main.upload_contact_list',
        service_id=SERVICE_ONE_ID,
        _data={'file': (BytesIO(''.encode('utf-8')), 'invalid.csv')},
        _follow_redirects=True,
    )

    assert normalize_spaces(page.select_one('.banner-dangerous').text) == (
        'Your file has too many rows '
        'Notify can store files up to 50,000 rows in size. '
        'Your file has 50,001 rows. '
        'Skip to file contents'
    )
    assert len(page.select('tbody tr')) == 50
    assert normalize_spaces(page.select_one('.table-show-more-link').text) == (
        'Only showing the first 50 rows'
    )


def test_upload_csv_shows_trial_mode_error(
    client_request,
    mock_get_users_by_service,
    mock_get_job_doesnt_exist,
    fake_uuid,
    mocker
):
    mocker.patch('app.models.contact_list.s3upload', return_value=fake_uuid)
    mocker.patch('app.models.contact_list.s3download', return_value=(
        'phone number\n'
        '07900900321'  # Not in team
    ))

    page = client_request.get(
        'main.check_contact_list',
        service_id=SERVICE_ONE_ID,
        upload_id=fake_uuid,
        _test_page_title=False,
    )

    assert normalize_spaces(page.select_one('.banner-dangerous').text) == (
        'You cannot save this phone number '
        'In trial mode you can only send to yourself and members of your team '
        'Skip to file contents'
    )
    assert page.select_one('.banner-dangerous a')['href'] == url_for(
        'main.trial_mode_new'
    )


def test_upload_csv_shows_ok_page(
    client_request,
    mock_get_live_service,
    mock_get_users_by_service,
    mock_get_job_doesnt_exist,
    fake_uuid,
    mocker
):
    mocker.patch('app.models.contact_list.s3download', return_value='\n'.join(
        ['email address'] + ['test@example.com'] * 51
    ))
    mock_metadata_set = mocker.patch('app.models.contact_list.set_metadata_on_csv_upload')

    page = client_request.get(
        'main.check_contact_list',
        service_id=SERVICE_ONE_ID,
        upload_id=fake_uuid,
        original_file_name='good times.xlsx',
        _test_page_title=False,
    )

    mock_metadata_set.assert_called_once_with(
        SERVICE_ONE_ID,
        fake_uuid,
        bucket='test-contact-list',
        row_count=51,
        original_file_name='good times.xlsx',
        template_type='email',
        valid=True,
    )

    assert normalize_spaces(page.select_one('h1').text) == (
        'good times.xlsx'
    )
    assert normalize_spaces(page.select_one('main p').text) == (
        '51 email addresses found'
    )
    assert page.select_one('form')['action'] == url_for(
        'main.save_contact_list',
        service_id=SERVICE_ONE_ID,
        upload_id=fake_uuid,
    )

    assert normalize_spaces(page.select_one('form [type=submit]').text) == (
        'Save contact list'
    )
    assert normalize_spaces(page.select_one('thead').text) == (
        'Row in file 1 email address'
    )
    assert len(page.select('tbody tr')) == 50
    assert normalize_spaces(page.select_one('tbody tr').text) == (
        '2 test@example.com'
    )
    assert normalize_spaces(page.select_one('.table-show-more-link').text) == (
        'Only showing the first 50 rows'
    )


def test_save_contact_list(
    mocker,
    client_request,
    fake_uuid,
    mock_create_contact_list,
):
    mock_get_metadata = mocker.patch('app.models.contact_list.get_csv_metadata', return_value={
        'row_count': 999,
        'valid': True,
        'original_file_name': 'example.csv',
        'template_type': 'email'
    })
    client_request.post(
        'main.save_contact_list',
        service_id=SERVICE_ONE_ID,
        upload_id=fake_uuid,
        _expected_status=302,
        _expected_redirect=url_for(
            'main.uploads',
            service_id=SERVICE_ONE_ID,
            _external=True,
        )
    )
    mock_get_metadata.assert_called_once_with(
        SERVICE_ONE_ID,
        fake_uuid,
        bucket='test-contact-list',
    )
    mock_create_contact_list.assert_called_once_with(
        service_id=SERVICE_ONE_ID,
        upload_id=fake_uuid,
        original_file_name='example.csv',
        row_count=999,
        template_type='email',
    )


def test_cant_save_bad_contact_list(
    mocker,
    client_request,
    fake_uuid,
    mock_create_contact_list,
):
    mocker.patch('app.models.contact_list.get_csv_metadata', return_value={
        'row_count': 999,
        'valid': False,
        'original_file_name': 'example.csv',
        'template_type': 'email'
    })
    client_request.post(
        'main.save_contact_list',
        service_id=SERVICE_ONE_ID,
        upload_id=fake_uuid,
        _expected_status=403,
    )
    assert mock_create_contact_list.called is False


@freeze_time('2020-03-13 16:51:56')
def test_view_contact_list(
    mocker,
    client_request,
    mock_get_contact_list,
    fake_uuid,
):
    mocker.patch('app.models.contact_list.s3download', return_value='\n'.join(
        ['email address'] + ['test@example.com'] * 51
    ))
    page = client_request.get(
        'main.contact_list',
        service_id=SERVICE_ONE_ID,
        contact_list_id=fake_uuid,
    )
    assert normalize_spaces(page.select_one('h1').text) == (
        'EmergencyContactList.xls'
    )
    assert normalize_spaces(page.select('main p')[0].text) == (
        'Uploaded by Test User today at 10:59am'
    )
    assert normalize_spaces(page.select('main p')[1].text) == (
        'Download this list 51 email addresses'
    )
    assert page.select_one('a[download]')['href'] == url_for(
        'main.download_contact_list',
        service_id=SERVICE_ONE_ID,
        contact_list_id=fake_uuid,
    )
    assert normalize_spaces(page.select_one('table').text).startswith(
        'Email addresses '
        '1 email address '
        '2 test@example.com '
        '3 test@example.com '
    )
    assert normalize_spaces(page.select_one('table').text).endswith(
        '50 test@example.com '
        '51 test@example.com'
    )
    assert normalize_spaces(page.select_one('.table-show-more-link').text) == (
        'Only showing the first 50 rows'
    )


def test_view_contact_list_404s_for_non_existing_list(
    client_request,
    mock_get_no_contact_list,
    fake_uuid,
):
    client_request.get(
        'main.contact_list',
        service_id=SERVICE_ONE_ID,
        contact_list_id=uuid.uuid4(),
        _expected_status=404,
    )


def test_download_contact_list(
    mocker,
    logged_in_client,
    fake_uuid,
    mock_get_contact_list,
):
    mocker.patch(
        'app.models.contact_list.s3download',
        return_value='phone number\n07900900321'
    )
    response = logged_in_client.get(url_for(
        'main.download_contact_list',
        service_id=SERVICE_ONE_ID,
        contact_list_id=fake_uuid,
    ))
    assert response.status_code == 200
    assert response.headers['Content-Type'] == (
        'text/csv; '
        'charset=utf-8'
    )
    assert response.headers['Content-Disposition'] == (
        'attachment; '
        'filename=EmergencyContactList.csv'
    )
    assert response.get_data(as_text=True) == (
        'phone number\n'
        '07900900321'
    )


def test_confirm_delete_contact_list(
    mocker,
    client_request,
    fake_uuid,
    mock_get_contact_list,
):
    mocker.patch(
        'app.models.contact_list.s3download',
        return_value='phone number\n07900900321'
    )
    page = client_request.get(
        'main.delete_contact_list',
        service_id=SERVICE_ONE_ID,
        contact_list_id=fake_uuid,
    )
    assert normalize_spaces(page.select_one('.banner-dangerous').text) == (
        'Are you sure you want to delete ‘EmergencyContactList.xls’? '
        'Yes, delete'
    )
    assert 'action' not in page.select_one('form')
    assert page.select_one('form')['method'] == 'post'
    assert page.select_one('form button')['type'] == 'submit'


def test_delete_contact_list(
    mocker,
    client_request,
    fake_uuid,
    mock_get_contact_list,
):
    mock_delete = mocker.patch(
        'app.models.contact_list.contact_list_api_client.delete_contact_list'
    )
    client_request.post(
        'main.delete_contact_list',
        service_id=SERVICE_ONE_ID,
        contact_list_id=fake_uuid,
        _expected_redirect=url_for(
            'main.uploads',
            service_id=SERVICE_ONE_ID,
            _external=True,
        )
    )
    mock_delete.assert_called_once_with(
        service_id=SERVICE_ONE_ID,
        contact_list_id=fake_uuid,
    )