import boto3
import sure  # noqa
from botocore.exceptions import ClientError

from moto import mock_eb


@mock_eb
def test_create_application():
    # Create Elastic Beanstalk Application
    conn = boto3.client('elasticbeanstalk', region_name='us-east-1')
    app = conn.create_application(
        ApplicationName="myapp",
    )
    app['Application']['ApplicationName'].should.equal("myapp")


@mock_eb
def test_create_application_dup():
    conn = boto3.client('elasticbeanstalk', region_name='us-east-1')
    conn.create_application(
        ApplicationName="myapp",
    )
    conn.create_application.when.called_with(
        ApplicationName="myapp",
    ).should.throw(ClientError)


@mock_eb
def test_describe_applications():
    # Create Elastic Beanstalk Application
    conn = boto3.client('elasticbeanstalk', region_name='us-east-1')
    conn.create_application(
        ApplicationName="myapp",
    )

    apps = conn.describe_applications()
    len(apps['Applications']).should.equal(1)
    apps['Applications'][0]['ApplicationName'].should.equal('myapp')


@mock_eb
def test_create_environment():
    # Create Elastic Beanstalk Environment
    conn = boto3.client('elasticbeanstalk', region_name='us-east-1')
    app = conn.create_application(
        ApplicationName="myapp",
    )
    env = conn.create_environment(
        ApplicationName="myapp",
        EnvironmentName="myenv",
    )
    env['EnvironmentName'].should.equal("myenv")


@mock_eb
def test_describe_environments():
    # List Elastic Beanstalk Envs
    conn = boto3.client('elasticbeanstalk', region_name='us-east-1')
    conn.create_application(
        ApplicationName="myapp",
    )
    conn.create_environment(
        ApplicationName="myapp",
        EnvironmentName="myenv",
    )

    envs = conn.describe_environments()
    envs = envs['Environments']
    len(envs).should.equal(1)
    envs[0]['ApplicationName'].should.equal('myapp')
    envs[0]['EnvironmentName'].should.equal('myenv')


def tags_dict_to_list(tag_dict):
    tag_list = []
    for key, value in tag_dict.items():
        tag_list.append({'Key': key, 'Value': value})
    return tag_list


def tags_list_to_dict(tag_list):
    tag_dict = {}
    for tag in tag_list:
        tag_dict[tag['Key']] = tag['Value']
    return tag_dict


@mock_eb
def test_create_environment_tags():
    conn = boto3.client('elasticbeanstalk', region_name='us-east-1')
    conn.create_application(
        ApplicationName="myapp",
    )
    env_tags = {'initial key': 'initial value'}
    env = conn.create_environment(
        ApplicationName="myapp",
        EnvironmentName="myenv",
        Tags=tags_dict_to_list(env_tags),
    )

    tags = conn.list_tags_for_resource(
        ResourceArn=env['EnvironmentArn'],
    )
    tags['ResourceArn'].should.equal(env['EnvironmentArn'])
    tags_list_to_dict(tags['ResourceTags']).should.equal(env_tags)


@mock_eb
def test_update_tags():
    conn = boto3.client('elasticbeanstalk', region_name='us-east-1')
    conn.create_application(
        ApplicationName="myapp",
    )
    env_tags = {
        'initial key': 'initial value',
        'to remove': 'delete me',
        'to update': 'original',
    }
    env = conn.create_environment(
        ApplicationName="myapp",
        EnvironmentName="myenv",
        Tags=tags_dict_to_list(env_tags),
    )

    extra_env_tags = {
        'to update': 'new',
        'extra key': 'extra value',
    }
    conn.update_tags_for_resource(
        ResourceArn=env['EnvironmentArn'],
        TagsToAdd=tags_dict_to_list(extra_env_tags),
        TagsToRemove=['to remove'],
    )

    total_env_tags = env_tags.copy()
    total_env_tags.update(extra_env_tags)
    del total_env_tags['to remove']

    tags = conn.list_tags_for_resource(
        ResourceArn=env['EnvironmentArn'],
    )
    tags['ResourceArn'].should.equal(env['EnvironmentArn'])
    tags_list_to_dict(tags['ResourceTags']).should.equal(total_env_tags)


@mock_eb
def test_list_available_solution_stacks():
    conn = boto3.client('elasticbeanstalk', region_name='us-east-1')
    stacks = conn.list_available_solution_stacks()
    len(stacks['SolutionStacks']).should.be.greater_than(0)
    len(stacks['SolutionStacks']).should.be.equal(len(stacks['SolutionStackDetails']))