package aws

import (
	"fmt"
	"testing"

	"github.com/aws/aws-sdk-go/service/ec2"
	"github.com/hashicorp/terraform/helper/acctest"
	"github.com/hashicorp/terraform/helper/resource"
)

func TestAccAWSNetworkInterfaceAttachment_basic(t *testing.T) {
	var conf ec2.NetworkInterface
	rInt := acctest.RandInt()

	resource.Test(t, resource.TestCase{
		PreCheck:      func() { testAccPreCheck(t) },
		IDRefreshName: "aws_network_interface.bar",
		Providers:     testAccProviders,
		CheckDestroy:  testAccCheckAWSENIDestroy,
		Steps: []resource.TestStep{
			{
				Config: testAccAWSNetworkInterfaceAttachmentConfig_basic(rInt),
				Check: resource.ComposeTestCheckFunc(
					testAccCheckAWSENIExists("aws_network_interface.bar", &conf),
					resource.TestCheckResourceAttr(
						"aws_network_interface_attachment.test", "device_index", "1"),
					resource.TestCheckResourceAttrSet(
						"aws_network_interface_attachment.test", "instance_id"),
					resource.TestCheckResourceAttrSet(
						"aws_network_interface_attachment.test", "network_interface_id"),
					resource.TestCheckResourceAttrSet(
						"aws_network_interface_attachment.test", "attachment_id"),
					resource.TestCheckResourceAttrSet(
						"aws_network_interface_attachment.test", "status"),
				),
			},
		},
	})
}

func testAccAWSNetworkInterfaceAttachmentConfig_basic(rInt int) string {
	return fmt.Sprintf(`
resource "aws_vpc" "foo" {
    cidr_block = "172.16.0.0/16"
}

resource "aws_subnet" "foo" {
    vpc_id = "${aws_vpc.foo.id}"
    cidr_block = "172.16.10.0/24"
    availability_zone = "us-west-2a"
}

resource "aws_security_group" "foo" {
  vpc_id = "${aws_vpc.foo.id}"
  description = "foo"
  name = "foo-%d"

        egress {
                from_port = 0
                to_port = 0
                protocol = "tcp"
                cidr_blocks = ["10.0.0.0/16"]
        }
}

resource "aws_network_interface" "bar" {
    subnet_id = "${aws_subnet.foo.id}"
    private_ips = ["172.16.10.100"]
    security_groups = ["${aws_security_group.foo.id}"]
    description = "Managed by Terraform"
    tags {
        Name = "bar_interface"
    }
}

resource "aws_instance" "foo" {
    ami = "ami-c5eabbf5"
    instance_type = "t2.micro"
    subnet_id = "${aws_subnet.foo.id}"
    tags {
        Name = "foo-%d"
    }
}

resource "aws_network_interface_attachment" "test" {
  device_index = 1
  instance_id = "${aws_instance.foo.id}"
  network_interface_id = "${aws_network_interface.bar.id}"
}
`, rInt, rInt)
}