package aws

import (
	"context"
	"testing"

	"github.com/cloudskiff/driftctl/pkg/remote/aws/repository"
	"github.com/cloudskiff/driftctl/pkg/remote/cache"
	remoteerror "github.com/cloudskiff/driftctl/pkg/remote/error"
	testresource "github.com/cloudskiff/driftctl/test/resource"

	resourceaws "github.com/cloudskiff/driftctl/pkg/resource/aws"

	"github.com/aws/aws-sdk-go/aws/awserr"

	"github.com/cloudskiff/driftctl/pkg/parallel"

	"github.com/aws/aws-sdk-go/service/ec2"

	"github.com/aws/aws-sdk-go/aws"

	"github.com/cloudskiff/driftctl/test/goldenfile"
	mocks2 "github.com/cloudskiff/driftctl/test/mocks"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/mock"

	"github.com/cloudskiff/driftctl/pkg/resource"
	"github.com/cloudskiff/driftctl/pkg/terraform"
	"github.com/cloudskiff/driftctl/test"
)

func TestSubnetSupplier_Resources(t *testing.T) {
	cases := []struct {
		test    string
		dirName string
		mocks   func(repo *repository.MockEC2Repository)
		err     error
	}{
		{
			test:    "no Subnet",
			dirName: "subnet_empty",
			mocks: func(repo *repository.MockEC2Repository) {
				repo.On("ListAllSubnets").Once().Return([]*ec2.Subnet{}, []*ec2.Subnet{}, nil)
			},
			err: nil,
		},
		{
			test:    "mixed default Subnet and Subnet",
			dirName: "subnet",
			mocks: func(repo *repository.MockEC2Repository) {
				repo.On("ListAllSubnets").Once().Return([]*ec2.Subnet{
					{
						SubnetId:     aws.String("subnet-05810d3f933925f6d"), // subnet1
						DefaultForAz: aws.Bool(false),
					},
					{
						SubnetId:     aws.String("subnet-0b13f1e0eacf67424"), // subnet2
						DefaultForAz: aws.Bool(false),
					},
					{
						SubnetId:     aws.String("subnet-0c9b78001fe186e22"), // subnet3
						DefaultForAz: aws.Bool(false),
					},
				}, []*ec2.Subnet{
					{
						SubnetId:     aws.String("subnet-44fe0c65"), // us-east-1a
						DefaultForAz: aws.Bool(true),
					},
					{
						SubnetId:     aws.String("subnet-65e16628"), // us-east-1b
						DefaultForAz: aws.Bool(true),
					},
					{
						SubnetId:     aws.String("subnet-afa656f0"), // us-east-1c
						DefaultForAz: aws.Bool(true),
					},
				}, nil)
			},
			err: nil,
		},
		{
			test:    "cannot list Subnet",
			dirName: "subnet_empty",
			mocks: func(repo *repository.MockEC2Repository) {
				repo.On("ListAllSubnets").Once().Return(nil, nil, awserr.NewRequestFailure(nil, 403, ""))
			},
			err: remoteerror.NewResourceEnumerationError(awserr.NewRequestFailure(nil, 403, ""), resourceaws.AwsSubnetResourceType),
		},
	}
	for _, c := range cases {
		shouldUpdate := c.dirName == *goldenfile.Update

		providerLibrary := terraform.NewProviderLibrary()
		supplierLibrary := resource.NewSupplierLibrary()

		repo := testresource.InitFakeSchemaRepository("aws", "3.19.0")
		resourceaws.InitResourcesMetadata(repo)
		factory := terraform.NewTerraformResourceFactory(repo)

		deserializer := resource.NewDeserializer(factory)
		if shouldUpdate {
			provider, err := InitTestAwsProvider(providerLibrary)
			if err != nil {
				t.Fatal(err)
			}
			supplierLibrary.AddSupplier(NewSubnetSupplier(provider, deserializer, repository.NewEC2Repository(provider.session, cache.New(0))))
		}

		t.Run(c.test, func(tt *testing.T) {
			fakeEC2 := repository.MockEC2Repository{}
			c.mocks(&fakeEC2)
			provider := mocks2.NewMockedGoldenTFProvider(c.dirName, providerLibrary.Provider(terraform.AWS), shouldUpdate)
			s := &SubnetSupplier{
				provider,
				deserializer,
				&fakeEC2,
				terraform.NewParallelResourceReader(parallel.NewParallelRunner(context.TODO(), 10)),
				terraform.NewParallelResourceReader(parallel.NewParallelRunner(context.TODO(), 10)),
			}
			got, err := s.Resources()
			assert.Equal(tt, c.err, err)

			mock.AssertExpectationsForObjects(tt)
			test.CtyTestDiff(got, c.dirName, provider, deserializer, shouldUpdate, tt)
		})
	}
}