package google

import (
	"fmt"
	"testing"

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

func TestAccComputeForwardingRule_update(t *testing.T) {
	t.Parallel()

	poolName := fmt.Sprintf("tf-%s", acctest.RandString(10))
	ruleName := fmt.Sprintf("tf-%s", acctest.RandString(10))

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckComputeForwardingRuleDestroy,
		Steps: []resource.TestStep{
			{
				Config: testAccComputeForwardingRule_basic(poolName, ruleName),
			},
			{
				ResourceName:      "google_compute_forwarding_rule.foobar",
				ImportState:       true,
				ImportStateVerify: true,
			},
			{
				Config: testAccComputeForwardingRule_update(poolName, ruleName),
			},
			{
				ResourceName:      "google_compute_forwarding_rule.foobar",
				ImportState:       true,
				ImportStateVerify: true,
			},
		},
	})
}

func TestAccComputeForwardingRule_ip(t *testing.T) {
	t.Parallel()

	addrName := fmt.Sprintf("tf-%s", acctest.RandString(10))
	poolName := fmt.Sprintf("tf-%s", acctest.RandString(10))
	ruleName := fmt.Sprintf("tf-%s", acctest.RandString(10))

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckComputeForwardingRuleDestroy,
		Steps: []resource.TestStep{
			{
				Config: testAccComputeForwardingRule_ip(addrName, poolName, ruleName),
			},
			{
				ResourceName:      "google_compute_forwarding_rule.foobar",
				ImportState:       true,
				ImportStateVerify: true,
			},
		},
	})
}

func TestAccComputeForwardingRule_networkTier(t *testing.T) {
	t.Parallel()

	poolName := fmt.Sprintf("tf-%s", acctest.RandString(10))
	ruleName := fmt.Sprintf("tf-%s", acctest.RandString(10))

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckComputeForwardingRuleDestroy,
		Steps: []resource.TestStep{
			{
				Config: testAccComputeForwardingRule_networkTier(poolName, ruleName),
			},

			{
				ResourceName:      "google_compute_forwarding_rule.foobar",
				ImportState:       true,
				ImportStateVerify: true,
			},
		},
	})
}

func testAccComputeForwardingRule_basic(poolName, ruleName string) string {
	return fmt.Sprintf(`
resource "google_compute_target_pool" "foo-tp" {
  description = "Resource created for Terraform acceptance testing"
  instances   = ["us-central1-a/foo", "us-central1-b/bar"]
  name        = "foo-%s"
}
resource "google_compute_forwarding_rule" "foobar" {
  description = "Resource created for Terraform acceptance testing"
  ip_protocol = "UDP"
  name        = "%s"
  port_range  = "80-81"
  target      = "${google_compute_target_pool.foo-tp.self_link}"
}
`, poolName, ruleName)
}

func testAccComputeForwardingRule_update(poolName, ruleName string) string {
	return fmt.Sprintf(`
resource "google_compute_target_pool" "foo-tp" {
  description = "Resource created for Terraform acceptance testing"
  instances   = ["us-central1-a/foo", "us-central1-b/bar"]
  name        = "foo-%s"
}
resource "google_compute_target_pool" "bar-tp" {
  description = "Resource created for Terraform acceptance testing"
  instances   = ["us-central1-a/foo", "us-central1-b/bar"]
  name        = "bar-%s"
}
resource "google_compute_forwarding_rule" "foobar" {
  description = "Resource created for Terraform acceptance testing"
  ip_protocol = "UDP"
  name        = "%s"
  port_range  = "80-81"
  target      = "${google_compute_target_pool.bar-tp.self_link}"
}
`, poolName, poolName, ruleName)
}

func testAccComputeForwardingRule_ip(addrName, poolName, ruleName string) string {
	return fmt.Sprintf(`
resource "google_compute_address" "foo" {
  name = "%s"
}
resource "google_compute_target_pool" "foobar-tp" {
  description = "Resource created for Terraform acceptance testing"
  instances   = ["us-central1-a/foo", "us-central1-b/bar"]
  name        = "%s"
}
resource "google_compute_forwarding_rule" "foobar" {
  description = "Resource created for Terraform acceptance testing"
  ip_address  = "${google_compute_address.foo.address}"
  ip_protocol = "TCP"
  name        = "%s"
  port_range  = "80-81"
  target      = "${google_compute_target_pool.foobar-tp.self_link}"
}
`, addrName, poolName, ruleName)
}

func testAccComputeForwardingRule_networkTier(poolName, ruleName string) string {
	return fmt.Sprintf(`
resource "google_compute_target_pool" "foobar-tp" {
  description = "Resource created for Terraform acceptance testing"
  instances   = ["us-central1-a/foo", "us-central1-b/bar"]
  name        = "%s"
}
resource "google_compute_forwarding_rule" "foobar" {
  description = "Resource created for Terraform acceptance testing"
  ip_protocol = "UDP"
  name        = "%s"
  port_range  = "80-81"
  target      = "${google_compute_target_pool.foobar-tp.self_link}"

  network_tier = "STANDARD"
}
`, poolName, ruleName)
}