// Copyright 2016-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"). You may
// not use this file except in compliance with the License. A copy of the
// License is located at
//
//     http://aws.amazon.com/apache2.0/
//
// or in the "license" file accompanying this file. This file is distributed
// on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
// express or implied. See the License for the specific language governing
// permissions and limitations under the License.

package e2einstancesteps

import (
	"github.com/aws/amazon-ecs-cluster-state-service/internal/features/wrappers"
	. "github.com/gucumber/gucumber"
)

const (
	nonExistentInstanceARN = "arn:aws:ecs:us-east-1:123456789012:container-instance/950bc492-81a5-4fed-9419-8edeab4769e5"
)

func init() {
	ecsWrapper := wrappers.NewECSWrapper()
	cssWrapper := wrappers.NewCSSWrapper()

	Given(`^I have an instance registered with the ECS cluster$`, func() {
		ecsContainerInstanceList = nil
		cssContainerInstanceList = nil

		clusterName := wrappers.GetClusterName()

		instanceARNs, err := ecsWrapper.ListContainerInstances(clusterName)
		if err != nil {
			T.Errorf(err.Error())
			return
		}
		if len(instanceARNs) < 1 {
			T.Errorf("No container instances registered to the cluster '%s'. ", clusterName)
			return
		}
		ecsInstance, err := ecsWrapper.DescribeContainerInstance(clusterName, *instanceARNs[0])
		if err != nil {
			T.Errorf(err.Error())
			return
		}
		ecsContainerInstanceList = append(ecsContainerInstanceList, ecsInstance)
	})

	When(`^I get instance with the cluster name and instance ARN$`, func() {
		clusterName := wrappers.GetClusterName()

		if len(ecsContainerInstanceList) != 1 {
			T.Errorf("Error memorizing container instance registered to ECS. ")
			return
		}
		instanceARN := *ecsContainerInstanceList[0].ContainerInstanceArn
		cssInstance, err := cssWrapper.GetInstance(clusterName, instanceARN)
		if err != nil {
			T.Errorf(err.Error())
			return
		}
		cssContainerInstanceList = append(cssContainerInstanceList, *cssInstance)
	})

	Then(`^I get an instance that matches the registered instance$`, func() {
		if len(ecsContainerInstanceList) != 1 || len(cssContainerInstanceList) != 1 {
			T.Errorf("Error memorizing results to validate them. ")
			return
		}
		ecsInstance := ecsContainerInstanceList[0]
		cssInstance := cssContainerInstanceList[0]
		err := ValidateInstancesMatch(ecsInstance, cssInstance)
		if err != nil {
			T.Errorf(err.Error())
		}
	})

	When(`^I try to get instance with a non-existent ARN$`, func() {
		exceptionList = nil
		exceptionMsg, exceptionType, err := cssWrapper.TryGetInstance(nonExistentInstanceARN)
		if err != nil {
			T.Errorf(err.Error())
			return
		}
		exceptionList = append(exceptionList, Exception{exceptionType: exceptionType, exceptionMsg: exceptionMsg})
	})
}