from __future__ import unicode_literals

import boto3
from botocore.exceptions import ClientError
from nose.tools import assert_raises

from moto import mock_cognitoidentity
from moto.cognitoidentity.utils import get_random_identity_id


@mock_cognitoidentity
def test_create_identity_pool():
    conn = boto3.client('cognito-identity', 'us-west-2')

    result = conn.create_identity_pool(IdentityPoolName='TestPool',
        AllowUnauthenticatedIdentities=False,
        SupportedLoginProviders={'graph.facebook.com': '123456789012345'},
        DeveloperProviderName='devname',
        OpenIdConnectProviderARNs=['arn:aws:rds:eu-west-2:123456789012:db:mysql-db'],
        CognitoIdentityProviders=[
            {
                'ProviderName': 'testprovider',
                'ClientId': 'CLIENT12345',
                'ServerSideTokenCheck': True
            },
        ],
        SamlProviderARNs=['arn:aws:rds:eu-west-2:123456789012:db:mysql-db'])
    assert result['IdentityPoolId'] != ''


@mock_cognitoidentity
def test_describe_identity_pool():
    conn = boto3.client('cognito-identity', 'us-west-2')

    res = conn.create_identity_pool(IdentityPoolName='TestPool',
        AllowUnauthenticatedIdentities=False,
        SupportedLoginProviders={'graph.facebook.com': '123456789012345'},
        DeveloperProviderName='devname',
        OpenIdConnectProviderARNs=['arn:aws:rds:eu-west-2:123456789012:db:mysql-db'],
        CognitoIdentityProviders=[
            {
                'ProviderName': 'testprovider',
                'ClientId': 'CLIENT12345',
                'ServerSideTokenCheck': True
            },
        ],
        SamlProviderARNs=['arn:aws:rds:eu-west-2:123456789012:db:mysql-db'])

    result = conn.describe_identity_pool(IdentityPoolId=res['IdentityPoolId'])

    assert result['IdentityPoolId'] == res['IdentityPoolId']
    assert result['AllowUnauthenticatedIdentities'] == res['AllowUnauthenticatedIdentities']
    assert result['SupportedLoginProviders'] == res['SupportedLoginProviders']
    assert result['DeveloperProviderName'] == res['DeveloperProviderName']
    assert result['OpenIdConnectProviderARNs'] == res['OpenIdConnectProviderARNs']
    assert result['CognitoIdentityProviders'] == res['CognitoIdentityProviders']
    assert result['SamlProviderARNs'] == res['SamlProviderARNs']


@mock_cognitoidentity
def test_describe_identity_pool_with_invalid_id_raises_error():
    conn = boto3.client('cognito-identity', 'us-west-2')

    with assert_raises(ClientError) as cm:
        conn.describe_identity_pool(IdentityPoolId='us-west-2_non-existent')

        cm.exception.operation_name.should.equal('DescribeIdentityPool')
        cm.exception.response['Error']['Code'].should.equal('ResourceNotFoundException')
        cm.exception.response['ResponseMetadata']['HTTPStatusCode'].should.equal(400)


# testing a helper function
def test_get_random_identity_id():
    assert len(get_random_identity_id('us-west-2')) > 0
    assert len(get_random_identity_id('us-west-2').split(':')[1]) == 19


@mock_cognitoidentity
def test_get_id():
    # These two do NOT work in server mode. They just don't return the data from the model.
    conn = boto3.client('cognito-identity', 'us-west-2')
    result = conn.get_id(AccountId='someaccount',
        IdentityPoolId='us-west-2:12345',
        Logins={
            'someurl': '12345'
        })
    print(result)
    assert result.get('IdentityId', "").startswith('us-west-2') or result.get('ResponseMetadata').get(
        'HTTPStatusCode') == 200


@mock_cognitoidentity
def test_get_credentials_for_identity():
    # These two do NOT work in server mode. They just don't return the data from the model.
    conn = boto3.client('cognito-identity', 'us-west-2')
    result = conn.get_credentials_for_identity(IdentityId='12345')

    assert result.get('Expiration', 0) > 0 or result.get('ResponseMetadata').get('HTTPStatusCode') == 200
    assert result.get('IdentityId') == '12345' or result.get('ResponseMetadata').get('HTTPStatusCode') == 200


@mock_cognitoidentity
def test_get_open_id_token_for_developer_identity():
    conn = boto3.client('cognito-identity', 'us-west-2')
    result = conn.get_open_id_token_for_developer_identity(
        IdentityPoolId='us-west-2:12345',
        IdentityId='12345',
        Logins={
            'someurl': '12345'
        },
        TokenDuration=123
    )
    assert len(result['Token']) > 0
    assert result['IdentityId'] == '12345'


@mock_cognitoidentity
def test_get_open_id_token_for_developer_identity_when_no_explicit_identity_id():
    conn = boto3.client('cognito-identity', 'us-west-2')
    result = conn.get_open_id_token_for_developer_identity(
        IdentityPoolId='us-west-2:12345',
        Logins={
            'someurl': '12345'
        },
        TokenDuration=123
    )
    assert len(result['Token']) > 0
    assert len(result['IdentityId']) > 0


@mock_cognitoidentity
def test_get_open_id_token():
    conn = boto3.client('cognito-identity', 'us-west-2')
    result = conn.get_open_id_token(
        IdentityId='12345',
        Logins={
            'someurl': '12345'
        }
    )
    assert len(result['Token']) > 0
    assert result['IdentityId'] == '12345'