from __future__ import unicode_literals

import pytest

import boto3

from botocore.exceptions import ParamValidationError, ClientError
from botocore.parsers import ResponseParserError
import json
import sure  # noqa
import random
import sys

from moto import (
    settings,
    mock_cloudformation,
    mock_ec2,
    mock_s3,
    mock_logs,
)
from moto.core import ACCOUNT_ID
from moto.ec2.exceptions import FilterNotImplementedError


@mock_s3
@mock_ec2
def test_create_flow_logs_s3():
    s3 = boto3.resource("s3", region_name="us-west-1")
    client = boto3.client("ec2", region_name="us-west-1")

    vpc = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]

    bucket = s3.create_bucket(
        Bucket="test-flow-logs",
        CreateBucketConfiguration={"LocationConstraint": "us-west-1"},
    )

    with pytest.raises(ClientError) as ex:
        client.create_flow_logs(
            ResourceType="VPC",
            ResourceIds=[vpc["VpcId"]],
            TrafficType="ALL",
            LogDestinationType="s3",
            LogDestination="arn:aws:s3:::" + bucket.name,
            DryRun=True,
        )
    ex.value.response["Error"]["Code"].should.equal("DryRunOperation")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "An error occurred (DryRunOperation) when calling the CreateFlowLogs operation: Request would have succeeded, but DryRun flag is set"
    )

    response = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc["VpcId"]],
        TrafficType="ALL",
        LogDestinationType="s3",
        LogDestination="arn:aws:s3:::" + bucket.name,
    )["FlowLogIds"]
    response.should.have.length_of(1)

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(1)

    flow_log = flow_logs[0]

    flow_log["FlowLogId"].should.equal(response[0])
    flow_log["DeliverLogsStatus"].should.equal("SUCCESS")
    flow_log["FlowLogStatus"].should.equal("ACTIVE")
    flow_log["ResourceId"].should.equal(vpc["VpcId"])
    flow_log["TrafficType"].should.equal("ALL")
    flow_log["LogDestinationType"].should.equal("s3")
    flow_log["LogDestination"].should.equal("arn:aws:s3:::" + bucket.name)
    flow_log["LogFormat"].should.equal(
        "${version} ${account-id} ${interface-id} ${srcaddr} ${dstaddr} ${srcport} ${dstport} ${protocol} ${packets} ${bytes} ${start} ${end} ${action} ${log-status}"
    )
    flow_log["MaxAggregationInterval"].should.equal(600)


@mock_logs
@mock_ec2
def test_create_flow_logs_cloud_watch():
    client = boto3.client("ec2", region_name="us-west-1")
    logs_client = boto3.client("logs", region_name="us-west-1")

    vpc = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]
    logs_client.create_log_group(logGroupName="test-group")

    with pytest.raises(ClientError) as ex:
        client.create_flow_logs(
            ResourceType="VPC",
            ResourceIds=[vpc["VpcId"]],
            TrafficType="ALL",
            LogDestinationType="cloud-watch-logs",
            LogGroupName="test-group",
            DeliverLogsPermissionArn="arn:aws:iam::" + ACCOUNT_ID + ":role/test-role",
            DryRun=True,
        )
    ex.value.response["Error"]["Code"].should.equal("DryRunOperation")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "An error occurred (DryRunOperation) when calling the CreateFlowLogs operation: Request would have succeeded, but DryRun flag is set"
    )

    response = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc["VpcId"]],
        TrafficType="ALL",
        LogDestinationType="cloud-watch-logs",
        LogGroupName="test-group",
        DeliverLogsPermissionArn="arn:aws:iam::" + ACCOUNT_ID + ":role/test-role",
    )["FlowLogIds"]
    response.should.have.length_of(1)

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(1)

    flow_log = flow_logs[0]

    flow_log["FlowLogId"].should.equal(response[0])
    flow_log["DeliverLogsStatus"].should.equal("SUCCESS")
    flow_log["FlowLogStatus"].should.equal("ACTIVE")
    flow_log["ResourceId"].should.equal(vpc["VpcId"])
    flow_log["TrafficType"].should.equal("ALL")
    flow_log["LogDestinationType"].should.equal("cloud-watch-logs")
    flow_log["LogGroupName"].should.equal("test-group")
    flow_log["DeliverLogsPermissionArn"].should.equal(
        "arn:aws:iam::" + ACCOUNT_ID + ":role/test-role"
    )
    flow_log["LogFormat"].should.equal(
        "${version} ${account-id} ${interface-id} ${srcaddr} ${dstaddr} ${srcport} ${dstport} ${protocol} ${packets} ${bytes} ${start} ${end} ${action} ${log-status}"
    )
    flow_log["MaxAggregationInterval"].should.equal(600)


@mock_s3
@mock_ec2
def test_create_flow_log_create():
    s3 = boto3.resource("s3", region_name="us-west-1")
    client = boto3.client("ec2", region_name="us-west-1")

    vpc1 = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]
    vpc2 = client.create_vpc(CidrBlock="10.1.0.0/16")["Vpc"]

    bucket = s3.create_bucket(
        Bucket="test-flow-logs",
        CreateBucketConfiguration={
            "LocationConstraint": "us-west-1",
        },
    )

    response = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc1["VpcId"], vpc2["VpcId"]],
        TrafficType="ALL",
        LogDestinationType="s3",
        LogDestination="arn:aws:s3:::" + bucket.name,
        LogFormat="${version} ${vpc-id} ${subnet-id} ${instance-id} ${interface-id} ${account-id} ${type} ${srcaddr} ${dstaddr} ${srcport} ${dstport} ${pkt-srcaddr} ${pkt-dstaddr} ${protocol} ${bytes} ${packets} ${start} ${end} ${action} ${tcp-flags} ${log-status}",
    )["FlowLogIds"]
    response.should.have.length_of(2)

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(2)

    flow_logs[0]["LogFormat"].should.equal(
        "${version} ${vpc-id} ${subnet-id} ${instance-id} ${interface-id} ${account-id} ${type} ${srcaddr} ${dstaddr} ${srcport} ${dstport} ${pkt-srcaddr} ${pkt-dstaddr} ${protocol} ${bytes} ${packets} ${start} ${end} ${action} ${tcp-flags} ${log-status}"
    )
    flow_logs[1]["LogFormat"].should.equal(
        "${version} ${vpc-id} ${subnet-id} ${instance-id} ${interface-id} ${account-id} ${type} ${srcaddr} ${dstaddr} ${srcport} ${dstport} ${pkt-srcaddr} ${pkt-dstaddr} ${protocol} ${bytes} ${packets} ${start} ${end} ${action} ${tcp-flags} ${log-status}"
    )


@mock_s3
@mock_ec2
def test_delete_flow_logs():
    s3 = boto3.resource("s3", region_name="us-west-1")
    client = boto3.client("ec2", region_name="us-west-1")

    vpc1 = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]
    vpc2 = client.create_vpc(CidrBlock="10.1.0.0/16")["Vpc"]

    bucket = s3.create_bucket(
        Bucket="test-flow-logs",
        CreateBucketConfiguration={"LocationConstraint": "us-west-1"},
    )

    response = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc1["VpcId"], vpc2["VpcId"]],
        TrafficType="ALL",
        LogDestinationType="s3",
        LogDestination="arn:aws:s3:::" + bucket.name,
    )["FlowLogIds"]
    response.should.have.length_of(2)

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(2)

    client.delete_flow_logs(FlowLogIds=[response[0]])

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(1)
    flow_logs[0]["FlowLogId"].should.equal(response[1])

    client.delete_flow_logs(FlowLogIds=[response[1]])

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(0)


@mock_s3
@mock_ec2
def test_delete_flow_logs_delete_many():
    s3 = boto3.resource("s3", region_name="us-west-1")
    client = boto3.client("ec2", region_name="us-west-1")

    vpc1 = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]
    vpc2 = client.create_vpc(CidrBlock="10.1.0.0/16")["Vpc"]

    bucket = s3.create_bucket(
        Bucket="test-flow-logs",
        CreateBucketConfiguration={"LocationConstraint": "us-west-1"},
    )

    response = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc1["VpcId"], vpc2["VpcId"]],
        TrafficType="ALL",
        LogDestinationType="s3",
        LogDestination="arn:aws:s3:::" + bucket.name,
    )["FlowLogIds"]
    response.should.have.length_of(2)

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(2)

    client.delete_flow_logs(FlowLogIds=response)

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(0)


@mock_ec2
def test_delete_flow_logs_non_existing():
    client = boto3.client("ec2", region_name="us-west-1")

    with pytest.raises(ClientError) as ex:
        client.delete_flow_logs(FlowLogIds=["fl-1a2b3c4d"])
    ex.value.response["Error"]["Code"].should.equal("InvalidFlowLogId.NotFound")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "These flow log ids in the input list are not found: [TotalCount: 1] fl-1a2b3c4d"
    )

    with pytest.raises(ClientError) as ex:
        client.delete_flow_logs(FlowLogIds=["fl-1a2b3c4d", "fl-2b3c4d5e"])
    ex.value.response["Error"]["Code"].should.equal("InvalidFlowLogId.NotFound")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "These flow log ids in the input list are not found: [TotalCount: 2] fl-1a2b3c4d fl-2b3c4d5e"
    )


@mock_ec2
def test_create_flow_logs_unsuccessful():
    s3 = boto3.resource("s3", region_name="us-west-1")
    client = boto3.client("ec2", region_name="us-west-1")

    vpc1 = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]
    vpc2 = client.create_vpc(CidrBlock="10.1.0.0/16")["Vpc"]

    response = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc1["VpcId"], vpc2["VpcId"]],
        TrafficType="ALL",
        LogDestinationType="s3",
        LogDestination="arn:aws:s3:::non-existing-bucket",
    )
    response["FlowLogIds"].should.have.length_of(0)
    response["Unsuccessful"].should.have.length_of(2)

    error1 = response["Unsuccessful"][0]["Error"]
    error2 = response["Unsuccessful"][1]["Error"]

    error1["Code"].should.equal("400")
    error1["Message"].should.equal(
        "LogDestination: non-existing-bucket does not exist."
    )
    error2["Code"].should.equal("400")
    error2["Message"].should.equal(
        "LogDestination: non-existing-bucket does not exist."
    )


@mock_s3
@mock_ec2
def test_create_flow_logs_invalid_parameters():
    s3 = boto3.resource("s3", region_name="us-west-1")
    client = boto3.client("ec2", region_name="us-west-1")

    vpc = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]

    bucket = s3.create_bucket(
        Bucket="test-flow-logs",
        CreateBucketConfiguration={"LocationConstraint": "us-west-1"},
    )

    with pytest.raises(ClientError) as ex:
        client.create_flow_logs(
            ResourceType="VPC",
            ResourceIds=[vpc["VpcId"]],
            TrafficType="ALL",
            LogDestinationType="s3",
            LogDestination="arn:aws:s3:::" + bucket.name,
            MaxAggregationInterval=10,
        )
    ex.value.response["Error"]["Code"].should.equal("InvalidParameter")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "Invalid Flow Log Max Aggregation Interval"
    )

    with pytest.raises(ClientError) as ex:
        client.create_flow_logs(
            ResourceType="VPC",
            ResourceIds=[vpc["VpcId"]],
            TrafficType="ALL",
            LogDestinationType="s3",
        )
    ex.value.response["Error"]["Code"].should.equal("InvalidParameter")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "LogDestination can't be empty if LogGroupName is not provided."
    )

    with pytest.raises(ClientError) as ex:
        client.create_flow_logs(
            ResourceType="VPC",
            ResourceIds=[vpc["VpcId"]],
            TrafficType="ALL",
            LogDestinationType="s3",
            LogGroupName="test",
        )
    ex.value.response["Error"]["Code"].should.equal("InvalidParameter")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "LogDestination type must be cloud-watch-logs if LogGroupName is provided."
    )

    with pytest.raises(ClientError) as ex:
        client.create_flow_logs(
            ResourceType="VPC",
            ResourceIds=[vpc["VpcId"]],
            TrafficType="ALL",
            LogGroupName="test",
        )
    ex.value.response["Error"]["Code"].should.equal("InvalidParameter")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "DeliverLogsPermissionArn can't be empty if LogDestinationType is cloud-watch-logs."
    )

    response = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc["VpcId"]],
        TrafficType="ALL",
        LogDestinationType="s3",
        LogDestination="arn:aws:s3:::" + bucket.name,
    )["FlowLogIds"]
    response.should.have.length_of(1)

    with pytest.raises(ClientError) as ex:
        client.create_flow_logs(
            ResourceType="VPC",
            ResourceIds=[vpc["VpcId"]],
            TrafficType="ALL",
            LogDestinationType="s3",
            LogDestination="arn:aws:s3:::" + bucket.name,
        )
    ex.value.response["Error"]["Code"].should.equal("FlowLogAlreadyExists")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "Error. There is an existing Flow Log with the same configuration and log destination."
    )

    response = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc["VpcId"]],
        TrafficType="ALL",
        LogGroupName="test-group",
        DeliverLogsPermissionArn="arn:aws:iam::" + ACCOUNT_ID + ":role/test-role",
    )["FlowLogIds"]
    response.should.have.length_of(1)

    with pytest.raises(ClientError) as ex:
        client.create_flow_logs(
            ResourceType="VPC",
            ResourceIds=[vpc["VpcId"]],
            TrafficType="ALL",
            LogGroupName="test-group",
            DeliverLogsPermissionArn="arn:aws:iam::" + ACCOUNT_ID + ":role/test-role",
        )
    ex.value.response["Error"]["Code"].should.equal("FlowLogAlreadyExists")
    ex.value.response["ResponseMetadata"]["HTTPStatusCode"].should.equal(400)
    ex.value.response["Error"]["Message"].should.equal(
        "Error. There is an existing Flow Log with the same configuration and log destination."
    )

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(2)


@mock_s3
@mock_ec2
@mock_logs
def test_describe_flow_logs_filtering():
    s3 = boto3.resource("s3", region_name="us-west-1")
    client = boto3.client("ec2", region_name="us-west-1")
    logs_client = boto3.client("logs", region_name="us-west-1")

    vpc1 = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]
    vpc2 = client.create_vpc(CidrBlock="10.1.0.0/16")["Vpc"]
    vpc3 = client.create_vpc(CidrBlock="10.2.0.0/16")["Vpc"]

    subnet1 = client.create_subnet(VpcId=vpc1["VpcId"], CidrBlock="10.0.0.0/18")[
        "Subnet"
    ]

    bucket1 = s3.create_bucket(
        Bucket="test-flow-logs-1",
        CreateBucketConfiguration={"LocationConstraint": "us-west-1"},
    )

    logs_client.create_log_group(logGroupName="test-group")

    fl1 = client.create_flow_logs(
        ResourceType="Subnet",
        ResourceIds=[subnet1["SubnetId"]],
        TrafficType="ALL",
        LogGroupName="test-group",
        DeliverLogsPermissionArn="arn:aws:iam::" + ACCOUNT_ID + ":role/test-role",
    )["FlowLogIds"][0]

    fl2 = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc2["VpcId"]],
        TrafficType="Accept",
        LogDestinationType="s3",
        LogDestination="arn:aws:s3:::" + bucket1.name,
        TagSpecifications=[
            {"ResourceType": "vpc-flow-log", "Tags": [{"Key": "foo", "Value": "bar"}]}
        ],
    )["FlowLogIds"][0]

    fl3 = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc3["VpcId"]],
        TrafficType="Reject",
        LogGroupName="non-existing-group",
        DeliverLogsPermissionArn="arn:aws:iam::" + ACCOUNT_ID + ":role/test-role",
    )["FlowLogIds"][0]

    all_flow_logs = client.describe_flow_logs()["FlowLogs"]
    all_flow_logs.should.have.length_of(3)

    fl_by_deliver_status = client.describe_flow_logs(
        Filters=[{"Name": "deliver-log-status", "Values": ["SUCCESS"]}],
    )["FlowLogs"]
    fl_by_deliver_status.should.have.length_of(3)

    fl_by_s3_bucket = client.describe_flow_logs(
        Filters=[{"Name": "log-destination-type", "Values": ["s3"]}],
    )["FlowLogs"]
    fl_by_s3_bucket.should.have.length_of(1)
    fl_by_s3_bucket[0]["FlowLogId"].should.equal(fl2)
    fl_by_s3_bucket[0]["ResourceId"].should.equal(vpc2["VpcId"])

    fl_by_cloud_watch = client.describe_flow_logs(
        Filters=[{"Name": "log-destination-type", "Values": ["cloud-watch-logs"]}],
    )["FlowLogs"]
    fl_by_cloud_watch.should.have.length_of(2)

    flow_logs_ids = tuple(map(lambda fl: fl["FlowLogId"], fl_by_cloud_watch))
    fl1.should.be.within(flow_logs_ids)
    fl3.should.be.within(flow_logs_ids)

    flow_logs_resource_ids = tuple(map(lambda fl: fl["ResourceId"], fl_by_cloud_watch))
    subnet1["SubnetId"].should.be.within(flow_logs_resource_ids)
    vpc3["VpcId"].should.be.within(flow_logs_resource_ids)

    test_fl3 = next(fl for fl in fl_by_cloud_watch if fl["FlowLogId"] == fl3)
    test_fl3["DeliverLogsStatus"].should.equal("FAILED")
    test_fl3["DeliverLogsErrorMessage"].should.equal("Access error")

    fl_by_both = client.describe_flow_logs(
        Filters=[
            {"Name": "log-destination-type", "Values": ["cloud-watch-logs", "s3"]}
        ],
    )["FlowLogs"]
    fl_by_both.should.have.length_of(3)

    fl_by_flow_log_ids = client.describe_flow_logs(
        Filters=[{"Name": "flow-log-id", "Values": [fl1, fl3]}],
    )["FlowLogs"]
    fl_by_flow_log_ids.should.have.length_of(2)
    flow_logs_ids = tuple(map(lambda fl: fl["FlowLogId"], fl_by_flow_log_ids))
    fl1.should.be.within(flow_logs_ids)
    fl3.should.be.within(flow_logs_ids)

    flow_logs_resource_ids = tuple(map(lambda fl: fl["ResourceId"], fl_by_flow_log_ids))
    subnet1["SubnetId"].should.be.within(flow_logs_resource_ids)
    vpc3["VpcId"].should.be.within(flow_logs_resource_ids)

    fl_by_group_name = client.describe_flow_logs(
        Filters=[{"Name": "log-group-name", "Values": ["test-group"]}],
    )["FlowLogs"]
    fl_by_group_name.should.have.length_of(1)
    fl_by_group_name[0]["FlowLogId"].should.equal(fl1)
    fl_by_group_name[0]["ResourceId"].should.equal(subnet1["SubnetId"])

    fl_by_group_name = client.describe_flow_logs(
        Filters=[{"Name": "log-group-name", "Values": ["non-existing-group"]}],
    )["FlowLogs"]
    fl_by_group_name.should.have.length_of(1)
    fl_by_group_name[0]["FlowLogId"].should.equal(fl3)
    fl_by_group_name[0]["ResourceId"].should.equal(vpc3["VpcId"])

    fl_by_resource_id = client.describe_flow_logs(
        Filters=[{"Name": "resource-id", "Values": [vpc2["VpcId"]]}],
    )["FlowLogs"]
    fl_by_resource_id.should.have.length_of(1)
    fl_by_resource_id[0]["FlowLogId"].should.equal(fl2)
    fl_by_resource_id[0]["ResourceId"].should.equal(vpc2["VpcId"])

    fl_by_traffic_type = client.describe_flow_logs(
        Filters=[{"Name": "traffic-type", "Values": ["ALL"]}],
    )["FlowLogs"]
    fl_by_traffic_type.should.have.length_of(1)
    fl_by_traffic_type[0]["FlowLogId"].should.equal(fl1)
    fl_by_traffic_type[0]["ResourceId"].should.equal(subnet1["SubnetId"])

    fl_by_traffic_type = client.describe_flow_logs(
        Filters=[{"Name": "traffic-type", "Values": ["Reject"]}],
    )["FlowLogs"]
    fl_by_traffic_type.should.have.length_of(1)
    fl_by_traffic_type[0]["FlowLogId"].should.equal(fl3)
    fl_by_traffic_type[0]["ResourceId"].should.equal(vpc3["VpcId"])

    fl_by_traffic_type = client.describe_flow_logs(
        Filters=[{"Name": "traffic-type", "Values": ["Accept"]}],
    )["FlowLogs"]
    fl_by_traffic_type.should.have.length_of(1)
    fl_by_traffic_type[0]["FlowLogId"].should.equal(fl2)
    fl_by_traffic_type[0]["ResourceId"].should.equal(vpc2["VpcId"])

    fl_by_tag_key = client.describe_flow_logs(
        Filters=[{"Name": "tag-key", "Values": ["foo"]}],
    )["FlowLogs"]
    fl_by_tag_key.should.have.length_of(1)
    fl_by_tag_key[0]["FlowLogId"].should.equal(fl2)
    fl_by_tag_key[0]["ResourceId"].should.equal(vpc2["VpcId"])

    fl_by_tag_key = client.describe_flow_logs(
        Filters=[{"Name": "tag-key", "Values": ["non-existing"]}],
    )["FlowLogs"]
    fl_by_tag_key.should.have.length_of(0)

    if not settings.TEST_SERVER_MODE:
        client.describe_flow_logs.when.called_with(
            Filters=[{"Name": "not-implemented-filter", "Values": ["foobar"]}],
        ).should.throw(FilterNotImplementedError)
    else:
        client.describe_flow_logs.when.called_with(
            Filters=[{"Name": "not-implemented-filter", "Values": ["foobar"]}],
        ).should.throw(ResponseParserError)


@mock_s3
@mock_ec2
def test_flow_logs_by_ids():
    s3 = boto3.resource("s3", region_name="us-west-1")
    client = boto3.client("ec2", region_name="us-west-1")

    vpc1 = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]
    vpc2 = client.create_vpc(CidrBlock="10.1.0.0/16")["Vpc"]
    vpc3 = client.create_vpc(CidrBlock="10.2.0.0/16")["Vpc"]

    fl1 = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc1["VpcId"]],
        TrafficType="Reject",
        LogGroupName="test-group-1",
        DeliverLogsPermissionArn="arn:aws:iam::" + ACCOUNT_ID + ":role/test-role-1",
    )["FlowLogIds"][0]

    fl2 = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc2["VpcId"]],
        TrafficType="Reject",
        LogGroupName="test-group-3",
        DeliverLogsPermissionArn="arn:aws:iam::" + ACCOUNT_ID + ":role/test-role-3",
    )["FlowLogIds"][0]

    fl3 = client.create_flow_logs(
        ResourceType="VPC",
        ResourceIds=[vpc3["VpcId"]],
        TrafficType="Reject",
        LogGroupName="test-group-3",
        DeliverLogsPermissionArn="arn:aws:iam::" + ACCOUNT_ID + ":role/test-role-3",
    )["FlowLogIds"][0]

    flow_logs = client.describe_flow_logs(FlowLogIds=[fl1, fl3])["FlowLogs"]
    flow_logs.should.have.length_of(2)
    flow_logs_ids = tuple(map(lambda fl: fl["FlowLogId"], flow_logs))
    fl1.should.be.within(flow_logs_ids)
    fl3.should.be.within(flow_logs_ids)

    flow_logs_resource_ids = tuple(map(lambda fl: fl["ResourceId"], flow_logs))
    vpc1["VpcId"].should.be.within(flow_logs_resource_ids)
    vpc3["VpcId"].should.be.within(flow_logs_resource_ids)

    client.delete_flow_logs(FlowLogIds=[fl1, fl3])

    flow_logs = client.describe_flow_logs(FlowLogIds=[fl1, fl3])["FlowLogs"]
    flow_logs.should.have.length_of(0)

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(1)
    flow_logs[0]["FlowLogId"].should.equal(fl2)
    flow_logs[0]["ResourceId"].should.equal(vpc2["VpcId"])

    flow_logs = client.delete_flow_logs(FlowLogIds=[fl2])
    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(0)


@mock_cloudformation
@mock_ec2
@mock_s3
def test_flow_logs_by_cloudformation():
    s3 = boto3.resource("s3", region_name="us-west-1")
    client = boto3.client("ec2", region_name="us-west-1")
    cf_client = boto3.client("cloudformation", "us-west-1")

    vpc = client.create_vpc(CidrBlock="10.0.0.0/16")["Vpc"]

    bucket = s3.create_bucket(
        Bucket="test-flow-logs",
        CreateBucketConfiguration={"LocationConstraint": "us-west-1"},
    )

    flow_log_template = {
        "AWSTemplateFormatVersion": "2010-09-09",
        "Description": "Template for VPC Flow Logs creation.",
        "Resources": {
            "TestFlowLogs": {
                "Type": "AWS::EC2::FlowLog",
                "Properties": {
                    "ResourceType": "VPC",
                    "ResourceId": vpc["VpcId"],
                    "TrafficType": "ALL",
                    "LogDestinationType": "s3",
                    "LogDestination": "arn:aws:s3:::" + bucket.name,
                    "MaxAggregationInterval": "60",
                    "Tags": [{"Key": "foo", "Value": "bar"}],
                },
            }
        },
    }
    flow_log_template_json = json.dumps(flow_log_template)
    stack_id = cf_client.create_stack(
        StackName="test_stack", TemplateBody=flow_log_template_json
    )["StackId"]

    flow_logs = client.describe_flow_logs()["FlowLogs"]
    flow_logs.should.have.length_of(1)
    flow_logs[0]["ResourceId"].should.equal(vpc["VpcId"])
    flow_logs[0]["LogDestination"].should.equal("arn:aws:s3:::" + bucket.name)
    flow_logs[0]["MaxAggregationInterval"].should.equal(60)