package aws

import (
	"fmt"
	"testing"

	"github.com/hashicorp/terraform/helper/resource"
	"github.com/hashicorp/terraform/terraform"
)

func TestAccAWSProxyProtocolPolicy(t *testing.T) {
	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckProxyProtocolPolicyDestroy,
		Steps: []resource.TestStep{
			resource.TestStep{
				Config: testAccProxyProtocolPolicyConfig,
				Check: resource.ComposeTestCheckFunc(
					resource.TestCheckResourceAttr(
						"aws_proxy_protocol_policy.smtp", "load_balancer", "test-lb"),
					resource.TestCheckResourceAttr(
						"aws_proxy_protocol_policy.smtp", "instance_ports.#", "1"),
					resource.TestCheckResourceAttr(
						"aws_proxy_protocol_policy.smtp", "instance_ports.4196041389", "25"),
				),
			},
			resource.TestStep{
				Config: testAccProxyProtocolPolicyConfigUpdate,
				Check: resource.ComposeTestCheckFunc(
					resource.TestCheckResourceAttr(
						"aws_proxy_protocol_policy.smtp", "load_balancer", "test-lb"),
					resource.TestCheckResourceAttr(
						"aws_proxy_protocol_policy.smtp", "instance_ports.#", "2"),
					resource.TestCheckResourceAttr(
						"aws_proxy_protocol_policy.smtp", "instance_ports.4196041389", "25"),
					resource.TestCheckResourceAttr(
						"aws_proxy_protocol_policy.smtp", "instance_ports.1925441437", "587"),
				),
			},
		},
	})
}

func testAccCheckProxyProtocolPolicyDestroy(s *terraform.State) error {
	if len(s.RootModule().Resources) > 0 {
		return fmt.Errorf("Expected all resources to be gone, but found: %#v", s.RootModule().Resources)
	}

	return nil
}

const testAccProxyProtocolPolicyConfig = `
resource "aws_elb" "lb" {
	name = "test-lb"
	availability_zones = ["us-west-2a"]

	listener {
		instance_port = 25
		instance_protocol = "tcp"
		lb_port = 25
		lb_protocol = "tcp"
	}

	listener {
		instance_port = 587
		instance_protocol = "tcp"
		lb_port = 587
		lb_protocol = "tcp"
	}
}

resource "aws_proxy_protocol_policy" "smtp" {
	load_balancer = "${aws_elb.lb.name}"
	instance_ports = ["25"]
}
`

const testAccProxyProtocolPolicyConfigUpdate = `
resource "aws_elb" "lb" {
	name = "test-lb"
	availability_zones = ["us-west-2a"]

	listener {
		instance_port = 25
		instance_protocol = "tcp"
		lb_port = 25
		lb_protocol = "tcp"
	}

	listener {
		instance_port = 587
		instance_protocol = "tcp"
		lb_port = 587
		lb_protocol = "tcp"
	}
}

resource "aws_proxy_protocol_policy" "smtp" {
	load_balancer = "${aws_elb.lb.name}"
	instance_ports = ["25", "587"]
}
`