import boto3
import pytest
import sure  # noqa # pylint: disable=unused-import
from botocore.exceptions import ClientError
from moto import mock_forecast
from moto.core import ACCOUNT_ID

region = "us-east-1"
account_id = None
valid_domains = [
    "RETAIL",
    "CUSTOM",
    "INVENTORY_PLANNING",
    "EC2_CAPACITY",
    "WORK_FORCE",
    "WEB_TRAFFIC",
    "METRICS",
]


@pytest.mark.parametrize("domain", valid_domains)
@mock_forecast
def test_forecast_dataset_group_create(domain):
    name = "example_dataset_group"
    client = boto3.client("forecast", region_name=region)
    response = client.create_dataset_group(DatasetGroupName=name, Domain=domain)
    response["ResponseMetadata"]["HTTPStatusCode"].should.equal(200)
    response["DatasetGroupArn"].should.equal(
        "arn:aws:forecast:" + region + ":" + ACCOUNT_ID + ":dataset-group/" + name
    )


@mock_forecast
def test_forecast_dataset_group_create_invalid_domain():
    name = "example_dataset_group"
    client = boto3.client("forecast", region_name=region)
    invalid_domain = "INVALID"

    with pytest.raises(ClientError) as exc:
        client.create_dataset_group(DatasetGroupName=name, Domain=invalid_domain)
    exc.value.response["Error"]["Code"].should.equal("ValidationException")
    exc.value.response["Error"]["Message"].should.equal(
        "1 validation error detected: Value '"
        + invalid_domain
        + "' at 'domain' failed to satisfy constraint: Member must satisfy enum value set ['INVENTORY_PLANNING', 'METRICS', 'RETAIL', 'EC2_CAPACITY', 'CUSTOM', 'WEB_TRAFFIC', 'WORK_FORCE']"
    )


@pytest.mark.parametrize("name", [" ", "a" * 64])
@mock_forecast
def test_forecast_dataset_group_create_invalid_name(name):
    client = boto3.client("forecast", region_name=region)

    with pytest.raises(ClientError) as exc:
        client.create_dataset_group(DatasetGroupName=name, Domain="CUSTOM")
    exc.value.response["Error"]["Code"].should.equal("ValidationException")
    exc.value.response["Error"]["Message"].should.contain(
        "1 validation error detected: Value '"
        + name
        + "' at 'datasetGroupName' failed to satisfy constraint: Member must"
    )


@mock_forecast
def test_forecast_dataset_group_create_duplicate_fails():
    client = boto3.client("forecast", region_name=region)
    client.create_dataset_group(DatasetGroupName="name", Domain="RETAIL")

    with pytest.raises(ClientError) as exc:
        client.create_dataset_group(DatasetGroupName="name", Domain="RETAIL")

    exc.value.response["Error"]["Code"].should.equal("ResourceAlreadyExistsException")


@mock_forecast
def test_forecast_dataset_group_list_default_empty():
    client = boto3.client("forecast", region_name=region)

    resp = client.list_dataset_groups()
    resp["DatasetGroups"].should.be.empty


@mock_forecast
def test_forecast_dataset_group_list_some():
    client = boto3.client("forecast", region_name=region)

    client.create_dataset_group(DatasetGroupName="hello", Domain="CUSTOM")
    result = client.list_dataset_groups()

    assert len(result["DatasetGroups"]) == 1
    result["DatasetGroups"][0]["DatasetGroupArn"].should.equal(
        "arn:aws:forecast:" + region + ":" + ACCOUNT_ID + ":dataset-group/hello"
    )


@mock_forecast
def test_forecast_delete_dataset_group():
    dataset_group_name = "name"
    dataset_group_arn = (
        "arn:aws:forecast:"
        + region
        + ":"
        + ACCOUNT_ID
        + ":dataset-group/"
        + dataset_group_name
    )
    client = boto3.client("forecast", region_name=region)
    client.create_dataset_group(DatasetGroupName=dataset_group_name, Domain="CUSTOM")
    client.delete_dataset_group(DatasetGroupArn=dataset_group_arn)


@mock_forecast
def test_forecast_delete_dataset_group_missing():
    client = boto3.client("forecast", region_name=region)
    missing_dsg_arn = (
        "arn:aws:forecast:" + region + ":" + ACCOUNT_ID + ":dataset-group/missing"
    )

    with pytest.raises(ClientError) as exc:
        client.delete_dataset_group(DatasetGroupArn=missing_dsg_arn)
    exc.value.response["Error"]["Code"].should.equal("ResourceNotFoundException")
    exc.value.response["Error"]["Message"].should.equal(
        "No resource found " + missing_dsg_arn
    )


@mock_forecast
def test_forecast_update_dataset_arns_empty():
    dataset_group_name = "name"
    dataset_group_arn = (
        "arn:aws:forecast:"
        + region
        + ":"
        + ACCOUNT_ID
        + ":dataset-group/"
        + dataset_group_name
    )
    client = boto3.client("forecast", region_name=region)
    client.create_dataset_group(DatasetGroupName=dataset_group_name, Domain="CUSTOM")
    client.update_dataset_group(DatasetGroupArn=dataset_group_arn, DatasetArns=[])


@mock_forecast
def test_forecast_update_dataset_group_not_found():
    client = boto3.client("forecast", region_name=region)
    dataset_group_arn = (
        "arn:aws:forecast:" + region + ":" + ACCOUNT_ID + ":dataset-group/" + "test"
    )
    with pytest.raises(ClientError) as exc:
        client.update_dataset_group(DatasetGroupArn=dataset_group_arn, DatasetArns=[])
    exc.value.response["Error"]["Code"].should.equal("ResourceNotFoundException")
    exc.value.response["Error"]["Message"].should.equal(
        "No resource found " + dataset_group_arn
    )


@mock_forecast
def test_describe_dataset_group():
    name = "test"
    client = boto3.client("forecast", region_name=region)
    dataset_group_arn = (
        "arn:aws:forecast:" + region + ":" + ACCOUNT_ID + ":dataset-group/" + name
    )
    client.create_dataset_group(DatasetGroupName=name, Domain="CUSTOM")
    result = client.describe_dataset_group(DatasetGroupArn=dataset_group_arn)
    assert result.get("DatasetGroupArn") == dataset_group_arn
    assert result.get("Domain") == "CUSTOM"
    assert result.get("DatasetArns") == []


@mock_forecast
def test_describe_dataset_group_missing():
    client = boto3.client("forecast", region_name=region)
    dataset_group_arn = (
        "arn:aws:forecast:" + region + ":" + ACCOUNT_ID + ":dataset-group/name"
    )
    with pytest.raises(ClientError) as exc:
        client.describe_dataset_group(DatasetGroupArn=dataset_group_arn)
    exc.value.response["Error"]["Code"].should.equal("ResourceNotFoundException")
    exc.value.response["Error"]["Message"].should.equal(
        "No resource found " + dataset_group_arn
    )


@mock_forecast
def test_create_dataset_group_missing_datasets():
    client = boto3.client("forecast", region_name=region)
    dataset_arn = "arn:aws:forecast:" + region + ":" + ACCOUNT_ID + ":dataset/name"
    with pytest.raises(ClientError) as exc:
        client.create_dataset_group(
            DatasetGroupName="name", Domain="CUSTOM", DatasetArns=[dataset_arn]
        )
    exc.value.response["Error"]["Code"].should.equal("InvalidInputException")
    exc.value.response["Error"]["Message"].should.equal(
        "Dataset arns: [" + dataset_arn + "] are not found"
    )


@mock_forecast
def test_update_dataset_group_missing_datasets():
    name = "test"
    client = boto3.client("forecast", region_name=region)
    dataset_group_arn = (
        "arn:aws:forecast:" + region + ":" + ACCOUNT_ID + ":dataset-group/" + name
    )
    client.create_dataset_group(DatasetGroupName=name, Domain="CUSTOM")
    dataset_arn = "arn:aws:forecast:" + region + ":" + ACCOUNT_ID + ":dataset/name"

    with pytest.raises(ClientError) as exc:
        client.update_dataset_group(
            DatasetGroupArn=dataset_group_arn, DatasetArns=[dataset_arn]
        )
    exc.value.response["Error"]["Code"].should.equal("InvalidInputException")
    exc.value.response["Error"]["Message"].should.equal(
        "Dataset arns: [" + dataset_arn + "] are not found"
    )