''' Test package for ordr2.models.account '''

import pytest

from datetime import datetime, timedelta
from pyramid.testing import DummyRequest

from .. import get_user, app_config


# tests for account.Role

def test_role_principals():
    ''' test Role.principal, a caluclated property '''
    from ordr2.models.account import Role

    assert Role.UNVALIDATED.principal == 'role:unvalidated'
    assert Role.NEW.principal == 'role:new'
    assert Role.USER.principal == 'role:user'
    assert Role.PURCHASER.principal == 'role:purchaser'
    assert Role.ADMIN.principal == 'role:admin'
    assert Role.INACTIVE.principal == 'role:inactive'


def test_role_str():
    ''' test the string representation of roles '''
    from ordr2.models.account import Role

    assert str(Role.UNVALIDATED) == 'Unvalidated'
    assert str(Role.NEW) == 'New'
    assert str(Role.USER) == 'User'
    assert str(Role.PURCHASER) == 'Purchaser'
    assert str(Role.ADMIN) == 'Admin'
    assert str(Role.INACTIVE) == 'Inactive'


# tests for account.User

def test_user_principal():
    ''' test the user principal calculated property '''
    from ordr2.models.account import User

    user = User(id=3)

    assert user.principal == 'user:3'


@pytest.mark.parametrize(
    'role_name, principals', [
        ('UNVALIDATED', ['role:unvalidated']),
        ('NEW', ['role:new']),
        ('USER', ['role:user']),
        ('PURCHASER', ['role:purchaser', 'role:user']),
        ('ADMIN', ['role:admin', 'role:purchaser', 'role:user']),
        ('INACTIVE', ['role:inactive'])
        ]
    )
def test_user_role_principals(role_name, principals):
    ''' test the user's role principals calculated property '''
    from ordr2.models.account import User, Role

    role = Role[role_name]
    user = User(role=role)

    assert user.role_principals == principals


@pytest.mark.parametrize(
    'role_name, is_active', [
        ('UNVALIDATED', False),
        ('NEW', False),
        ('USER', True),
        ('PURCHASER', True),
        ('ADMIN', True),
        ('INACTIVE', False)
        ]
    )
def test_user_is_active(role_name, is_active):
    ''' test if is_active returns correct value based on the user's role '''
    from ordr2.models.account import User, Role

    role = Role[role_name]
    user = User(role=role)

    assert user.is_active == is_active


def test_user_set_password():
    ''' test password hash generation '''
    from ordr2.models.account import User, passlib_context

    passlib_context.update(schemes=['argon2', 'bcrypt'])
    user = User(password_hash=None)
    password = 'Fish Slapping Dance'
    user.set_password(password)

    assert user.password_hash.startswith('$argon2')
    assert password not in user.password_hash


def test_user_check_password_ok():
    ''' test password check succeeds'''
    from ordr2.models.account import User, passlib_context

    passlib_context.update(schemes=['argon2', 'bcrypt'], deprecated='auto')
    user = User(password_hash=None)
    user.set_password('Fish Slapping Dance')

    assert user.check_password('Fish Slapping Dance') is True


def test_user_check_password_fails():
    ''' test password check fails '''
    from ordr2.models.account import User, passlib_context

    passlib_context.update(schemes=['argon2', 'bcrypt'], deprecated='auto')
    user = User(password_hash=None)
    user.set_password('Fish Slapping Dance')

    assert user.check_password('Argument Clininc') is False


def test_user_check_password_deprecated_hash():
    ''' test password check updates deprecated hash with new algorithm '''
    from ordr2.models.account import User
    from ordr2.security import passlib_context

    passlib_context.update(schemes=['argon2', 'bcrypt'], deprecated='auto')
    password = 'Fish Slapping Dance'
    bcrypt_hash = passlib_context.hash(password, scheme='bcrypt')
    user = User(password_hash=bcrypt_hash)

    assert user.check_password(password)
    assert user.password_hash != bcrypt_hash
    assert user.password_hash.startswith('$argon2')


def test_user_string_representation():
    ''' test the string representation of the user '''
    from ordr2.models.account import User, Role

    user = User(username='FooBar')

    assert str(user) == 'FooBar'


def test_user_issue_token(app_config):
    from ordr2.models.account import Token, TokenSubject

    request = DummyRequest()
    request.registry.settings['token_expiry.change_email'] = 10
    user = get_user('user')
    payload = {'test-key': 'test-data'}
    token = user.issue_token(request, TokenSubject.CHANGE_EMAIL, payload)

    expected_expires = datetime.utcnow() + timedelta(minutes=10)
    # one second drift is still considered ok
    assert token.expires.timestamp() == pytest.approx(
        expected_expires.timestamp(),
        abs=1
        )
    assert token.owner == user
    assert token.payload == payload
    assert token.subject == TokenSubject.CHANGE_EMAIL


def test_token_issue(app_config):
    from ordr2.models.account import Token, TokenSubject

    request = DummyRequest()
    request.registry.settings['token_expiry.change_email'] = 10
    user = get_user('user')
    payload = {'test-key': 'test-data'}
    result = Token.issue(request, user, TokenSubject.CHANGE_EMAIL, payload)

    expected_expires = datetime.utcnow() + timedelta(minutes=10)
    # one second drift is still considered ok
    assert result.expires.timestamp() == pytest.approx(
        expected_expires.timestamp(),
        abs=1
        )
    assert len(result.hash) == 32
    assert result.owner == user
    assert result.payload == payload
    assert result.subject == TokenSubject.CHANGE_EMAIL
    assert user.tokens[0] == result