from datetime import datetime, timedelta

from freezegun import freeze_time
from sqlalchemy.exc import DataError
from sqlalchemy.orm.exc import NoResultFound
import pytest

from app import db
from app.dao.users_dao import (
    save_model_user,
    save_user_attribute,
    get_user_by_id,
    delete_model_user,
    increment_failed_login_count,
    reset_failed_login_count,
    get_user_by_email,
    delete_codes_older_created_more_than_a_day_ago,
    update_user_password,
    count_user_verify_codes,
    create_secret_code)

from app.models import User, VerifyCode

from tests.app.db import create_user


@pytest.mark.parametrize('phone_number', [
    '+447700900986',
    '+1-800-555-5555',
])
def test_create_user(notify_db_session, phone_number):
    email = 'notify@digital.cabinet-office.gov.uk'
    data = {
        'name': 'Test User',
        'email_address': email,
        'password': 'password',
        'mobile_number': phone_number
    }
    user = User(**data)
    save_model_user(user)
    assert User.query.count() == 1
    assert User.query.first().email_address == email
    assert User.query.first().id == user.id
    assert User.query.first().mobile_number == phone_number
    assert not user.platform_admin


def test_get_all_users(notify_db_session):
    create_user(email='1@test.com')
    create_user(email='2@test.com')

    assert User.query.count() == 2
    assert len(get_user_by_id()) == 2


def test_get_user(notify_db_session):
    email = '1@test.com'
    user = create_user(email=email)
    assert get_user_by_id(user_id=user.id).email_address == email


def test_get_user_not_exists(notify_db_session, fake_uuid):
    with pytest.raises(NoResultFound):
        get_user_by_id(user_id=fake_uuid)


def test_get_user_invalid_id(notify_db_session):
    with pytest.raises(DataError):
        get_user_by_id(user_id="blah")


def test_delete_users(sample_user):
    assert User.query.count() == 1
    delete_model_user(sample_user)
    assert User.query.count() == 0


def test_increment_failed_login_should_increment_failed_logins(sample_user):
    assert sample_user.failed_login_count == 0
    increment_failed_login_count(sample_user)
    assert sample_user.failed_login_count == 1


def test_reset_failed_login_should_set_failed_logins_to_0(sample_user):
    increment_failed_login_count(sample_user)
    assert sample_user.failed_login_count == 1
    reset_failed_login_count(sample_user)
    assert sample_user.failed_login_count == 0


def test_get_user_by_email(sample_user):
    user_from_db = get_user_by_email(sample_user.email_address)
    assert sample_user == user_from_db


def test_get_user_by_email_is_case_insensitive(sample_user):
    email = sample_user.email_address
    user_from_db = get_user_by_email(email.upper())
    assert sample_user == user_from_db


def test_should_delete_all_verification_codes_more_than_one_day_old(sample_user):
    make_verify_code(sample_user, age=timedelta(hours=24), code="54321")
    make_verify_code(sample_user, age=timedelta(hours=24), code="54321")
    assert VerifyCode.query.count() == 2
    delete_codes_older_created_more_than_a_day_ago()
    assert VerifyCode.query.count() == 0


def test_should_not_delete_verification_codes_less_than_one_day_old(sample_user):
    make_verify_code(sample_user, age=timedelta(hours=23, minutes=59, seconds=59), code="12345")
    make_verify_code(sample_user, age=timedelta(hours=24), code="54321")

    assert VerifyCode.query.count() == 2
    delete_codes_older_created_more_than_a_day_ago()
    assert VerifyCode.query.one()._code == "12345"


def make_verify_code(user, age=timedelta(hours=0), expiry_age=timedelta(0), code="12335", code_used=False):
    verify_code = VerifyCode(
        code_type='sms',
        _code=code,
        created_at=datetime.utcnow() - age,
        expiry_datetime=datetime.utcnow() - expiry_age,
        user=user,
        code_used=code_used
    )
    db.session.add(verify_code)
    db.session.commit()


@pytest.mark.parametrize('user_attribute, user_value', [
    ('name', 'New User'),
    ('email_address', 'newuser@mail.com'),
    ('mobile_number', '+4407700900460')
])
def test_update_user_attribute(client, sample_user, user_attribute, user_value):
    assert getattr(sample_user, user_attribute) != user_value
    update_dict = {
        user_attribute: user_value
    }
    save_user_attribute(sample_user, update_dict)
    assert getattr(sample_user, user_attribute) == user_value


def test_update_user_password(notify_api, notify_db, notify_db_session, sample_user):
    password = 'newpassword'
    assert not sample_user.check_password(password)
    update_user_password(sample_user, password)
    assert sample_user.check_password(password)


def test_count_user_verify_codes(sample_user):
    with freeze_time(datetime.utcnow() + timedelta(hours=1)):
        make_verify_code(sample_user, code_used=True)
        make_verify_code(sample_user, expiry_age=timedelta(hours=2))
        [make_verify_code(sample_user) for i in range(5)]

    assert count_user_verify_codes(sample_user) == 5


def test_create_secret_code_different_subsequent_codes():
    code1 = create_secret_code()
    code2 = create_secret_code()
    assert code1 != code2


def test_create_secret_code_returns_5_digits():
    code = create_secret_code()
    assert len(str(code)) == 5