package azurerm

import (
	"fmt"
	"net/http"
	"testing"

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

func TestAccAzureRMContainerService_orchestrationPlatformValidation(t *testing.T) {
	cases := []struct {
		Value    string
		ErrCount int
	}{
		{Value: "DCOS", ErrCount: 0},
		{Value: "Kubernetes", ErrCount: 0},
		{Value: "Swarm", ErrCount: 0},
		{Value: "Mesos", ErrCount: 1},
	}

	for _, tc := range cases {
		_, errors := validateArmContainerServiceOrchestrationPlatform(tc.Value, "azurerm_container_service")

		if len(errors) != tc.ErrCount {
			t.Fatalf("Expected the Azure RM Container Service Orchestration Platform to trigger a validation error")
		}
	}
}

func TestAccAzureRMContainerService_masterProfileCountValidation(t *testing.T) {
	cases := []struct {
		Value    int
		ErrCount int
	}{
		{Value: 0, ErrCount: 1},
		{Value: 1, ErrCount: 0},
		{Value: 2, ErrCount: 1},
		{Value: 3, ErrCount: 0},
		{Value: 4, ErrCount: 1},
		{Value: 5, ErrCount: 0},
		{Value: 6, ErrCount: 1},
	}

	for _, tc := range cases {
		_, errors := validateArmContainerServiceMasterProfileCount(tc.Value, "azurerm_container_service")

		if len(errors) != tc.ErrCount {
			t.Fatalf("Expected the Azure RM Container Service Master Profile Count to trigger a validation error")
		}
	}
}

func TestAccAzureRMContainerService_agentProfilePoolCountValidation(t *testing.T) {
	cases := []struct {
		Value    int
		ErrCount int
	}{
		{Value: 0, ErrCount: 1},
		{Value: 1, ErrCount: 0},
		{Value: 2, ErrCount: 0},
		{Value: 99, ErrCount: 0},
		{Value: 100, ErrCount: 0},
		{Value: 101, ErrCount: 1},
	}

	for _, tc := range cases {
		_, errors := validateArmContainerServiceAgentPoolProfileCount(tc.Value, "azurerm_container_service")

		if len(errors) != tc.ErrCount {
			t.Fatalf("Expected the Azure RM Container Service Agent Pool Profile Count to trigger a validation error")
		}
	}
}

func TestAccAzureRMContainerService_dcosBasic(t *testing.T) {
	ri := acctest.RandInt()
	config := fmt.Sprintf(testAccAzureRMContainerService_dcosBasic, ri, ri, ri, ri, ri)

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testCheckAzureRMContainerServiceDestroy,
		Steps: []resource.TestStep{
			{
				Config: config,
				Check: resource.ComposeTestCheckFunc(
					testCheckAzureRMContainerServiceExists("azurerm_container_service.test"),
				),
			},
		},
	})
}

func TestAccAzureRMContainerService_kubernetesBasic(t *testing.T) {
	ri := acctest.RandInt()
	config := fmt.Sprintf(testAccAzureRMContainerService_kubernetesBasic, ri, ri, ri, ri, ri)

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testCheckAzureRMContainerServiceDestroy,
		Steps: []resource.TestStep{
			{
				Config: config,
				Check: resource.ComposeTestCheckFunc(
					testCheckAzureRMContainerServiceExists("azurerm_container_service.test"),
				),
			},
		},
	})
}

func TestAccAzureRMContainerService_kubernetesComplete(t *testing.T) {
	ri := acctest.RandInt()
	config := fmt.Sprintf(testAccAzureRMContainerService_kubernetesComplete, ri, ri, ri, ri, ri)

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testCheckAzureRMContainerServiceDestroy,
		Steps: []resource.TestStep{
			{
				Config: config,
				Check: resource.ComposeTestCheckFunc(
					testCheckAzureRMContainerServiceExists("azurerm_container_service.test"),
				),
			},
		},
	})
}

func TestAccAzureRMContainerService_swarmBasic(t *testing.T) {
	ri := acctest.RandInt()
	config := fmt.Sprintf(testAccAzureRMContainerService_swarmBasic, ri, ri, ri, ri, ri)

	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testCheckAzureRMContainerServiceDestroy,
		Steps: []resource.TestStep{
			{
				Config: config,
				Check: resource.ComposeTestCheckFunc(
					testCheckAzureRMContainerServiceExists("azurerm_container_service.test"),
				),
			},
		},
	})
}

var testAccAzureRMContainerService_dcosBasic = `
resource "azurerm_resource_group" "test" {
  name     = "acctestRG-%d"
  location = "East US"
}

resource "azurerm_container_service" "test" {
  name                   = "acctestcontservice%d"
  location               = "${azurerm_resource_group.test.location}"
  resource_group_name    = "${azurerm_resource_group.test.name}"
  orchestration_platform = "DCOS"

  master_profile {
    count      = 1
    dns_prefix = "acctestmaster%d"
  }

  linux_profile {
    admin_username = "acctestuser%d"

    ssh_key {
      key_data = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCqaZoyiz1qbdOQ8xEf6uEu1cCwYowo5FHtsBhqLoDnnp7KUTEBN+L2NxRIfQ781rxV6Iq5jSav6b2Q8z5KiseOlvKA/RF2wqU0UPYqQviQhLmW6THTpmrv/YkUCuzxDpsH7DUDhZcwySLKVVe0Qm3+5N2Ta6UYH3lsDf9R9wTP2K/+vAnflKebuypNlmocIvakFWoZda18FOmsOoIVXQ8HWFNCuw9ZCunMSN62QGamCe3dL5cXlkgHYv7ekJE15IA9aOJcM7e90oeTqo+7HTcWfdu0qQqPWY5ujyMw/llas8tsXY85LFqRnr3gJ02bAscjc477+X+j/gkpFoN1QEmt terraform@demo.tld"
    }
  }

  agent_pool_profile {
    name       = "default"
    count      = 1
    dns_prefix = "acctestagent%d"
    vm_size    = "Standard_A0"
  }

  diagnostics_profile {
    enabled = false
  }
}
`

var testAccAzureRMContainerService_kubernetesBasic = `
resource "azurerm_resource_group" "test" {
  name     = "acctestRG-%d"
  location = "East US"
}

resource "azurerm_container_service" "test" {
  name                   = "acctestcontservice%d"
  location               = "${azurerm_resource_group.test.location}"
  resource_group_name    = "${azurerm_resource_group.test.name}"
  orchestration_platform = "Kubernetes"

  master_profile {
    count      = 1
    dns_prefix = "acctestmaster%d"
  }

  linux_profile {
    admin_username = "acctestuser%d"

    ssh_key {
      key_data = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCqaZoyiz1qbdOQ8xEf6uEu1cCwYowo5FHtsBhqLoDnnp7KUTEBN+L2NxRIfQ781rxV6Iq5jSav6b2Q8z5KiseOlvKA/RF2wqU0UPYqQviQhLmW6THTpmrv/YkUCuzxDpsH7DUDhZcwySLKVVe0Qm3+5N2Ta6UYH3lsDf9R9wTP2K/+vAnflKebuypNlmocIvakFWoZda18FOmsOoIVXQ8HWFNCuw9ZCunMSN62QGamCe3dL5cXlkgHYv7ekJE15IA9aOJcM7e90oeTqo+7HTcWfdu0qQqPWY5ujyMw/llas8tsXY85LFqRnr3gJ02bAscjc477+X+j/gkpFoN1QEmt terraform@demo.tld"
    }
  }

  agent_pool_profile {
    name       = "default"
    count      = 1
    dns_prefix = "acctestagent%d"
    vm_size    = "Standard_A0"
  }

  service_principal {
    client_id     = "00000000-0000-0000-0000-000000000000"
    client_secret = "00000000000000000000000000000000"
  }

  diagnostics_profile {
    enabled = false
  }
}
`

var testAccAzureRMContainerService_kubernetesComplete = `
resource "azurerm_resource_group" "test" {
  name     = "acctestRG-%d"
  location = "East US"
}

resource "azurerm_container_service" "test" {
  name                   = "acctestcontservice%d"
  location               = "${azurerm_resource_group.test.location}"
  resource_group_name    = "${azurerm_resource_group.test.name}"
  orchestration_platform = "Kubernetes"

  master_profile {
    count      = 1
    dns_prefix = "acctestmaster%d"
  }

  linux_profile {
    admin_username = "acctestuser%d"

    ssh_key {
      key_data = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCqaZoyiz1qbdOQ8xEf6uEu1cCwYowo5FHtsBhqLoDnnp7KUTEBN+L2NxRIfQ781rxV6Iq5jSav6b2Q8z5KiseOlvKA/RF2wqU0UPYqQviQhLmW6THTpmrv/YkUCuzxDpsH7DUDhZcwySLKVVe0Qm3+5N2Ta6UYH3lsDf9R9wTP2K/+vAnflKebuypNlmocIvakFWoZda18FOmsOoIVXQ8HWFNCuw9ZCunMSN62QGamCe3dL5cXlkgHYv7ekJE15IA9aOJcM7e90oeTqo+7HTcWfdu0qQqPWY5ujyMw/llas8tsXY85LFqRnr3gJ02bAscjc477+X+j/gkpFoN1QEmt terraform@demo.tld"
    }
  }

  agent_pool_profile {
    name       = "default"
    count      = 1
    dns_prefix = "acctestagent%d"
    vm_size    = "Standard_A0"
  }

  service_principal {
    client_id     = "00000000-0000-0000-0000-000000000000"
    client_secret = "00000000000000000000000000000000"
  }

  diagnostics_profile {
    enabled = false
  }

  tags {
    you = "me"
  }
}
`

var testAccAzureRMContainerService_swarmBasic = `
resource "azurerm_resource_group" "test" {
  name     = "acctestRG-%d"
  location = "East US"
}

resource "azurerm_container_service" "test" {
  name                   = "acctestcontservice%d"
  location               = "${azurerm_resource_group.test.location}"
  resource_group_name    = "${azurerm_resource_group.test.name}"
  orchestration_platform = "Swarm"

  master_profile {
    count      = 1
    dns_prefix = "acctestmaster%d"
  }

  linux_profile {
    admin_username = "acctestuser%d"

    ssh_key {
      key_data = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCqaZoyiz1qbdOQ8xEf6uEu1cCwYowo5FHtsBhqLoDnnp7KUTEBN+L2NxRIfQ781rxV6Iq5jSav6b2Q8z5KiseOlvKA/RF2wqU0UPYqQviQhLmW6THTpmrv/YkUCuzxDpsH7DUDhZcwySLKVVe0Qm3+5N2Ta6UYH3lsDf9R9wTP2K/+vAnflKebuypNlmocIvakFWoZda18FOmsOoIVXQ8HWFNCuw9ZCunMSN62QGamCe3dL5cXlkgHYv7ekJE15IA9aOJcM7e90oeTqo+7HTcWfdu0qQqPWY5ujyMw/llas8tsXY85LFqRnr3gJ02bAscjc477+X+j/gkpFoN1QEmt terraform@demo.tld"
    }
  }

  agent_pool_profile {
    name       = "default"
    count      = 1
    dns_prefix = "acctestagent%d"
    vm_size    = "Standard_A0"
  }

  diagnostics_profile {
    enabled = false
  }
}
`

func testCheckAzureRMContainerServiceExists(name string) resource.TestCheckFunc {
	return func(s *terraform.State) error {
		// Ensure we have enough information in state to look up in API
		rs, ok := s.RootModule().Resources[name]
		if !ok {
			return fmt.Errorf("Not found: %s", name)
		}

		name := rs.Primary.Attributes["name"]
		resourceGroup, hasResourceGroup := rs.Primary.Attributes["resource_group_name"]
		if !hasResourceGroup {
			return fmt.Errorf("Bad: no resource group found in state for Container Service Instance: %s", name)
		}

		conn := testAccProvider.Meta().(*ArmClient).containerServicesClient

		resp, err := conn.Get(resourceGroup, name)
		if err != nil {
			return fmt.Errorf("Bad: Get on containerServicesClient: %s", err)
		}

		if resp.StatusCode == http.StatusNotFound {
			return fmt.Errorf("Bad: Container Service Instance %q (resource group: %q) does not exist", name, resourceGroup)
		}

		return nil
	}
}

func testCheckAzureRMContainerServiceDestroy(s *terraform.State) error {
	conn := testAccProvider.Meta().(*ArmClient).containerServicesClient

	for _, rs := range s.RootModule().Resources {
		if rs.Type != "azurerm_container_service" {
			continue
		}

		name := rs.Primary.Attributes["name"]
		resourceGroup := rs.Primary.Attributes["resource_group_name"]

		resp, err := conn.Get(resourceGroup, name)

		if err != nil {
			return nil
		}

		if resp.StatusCode != http.StatusNotFound {
			return fmt.Errorf("Container Service Instance still exists:\n%#v", resp)
		}
	}

	return nil
}