package docker

import (
	"os/exec"
	"regexp"
	"testing"

	"github.com/hashicorp/terraform-plugin-sdk/helper/resource"
	"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
	"github.com/hashicorp/terraform-plugin-sdk/terraform"
)

var (
	testAccProviders map[string]terraform.ResourceProvider
	testAccProvider  *schema.Provider
)

func init() {
	testAccProvider = Provider().(*schema.Provider)
	testAccProviders = map[string]terraform.ResourceProvider{
		"docker": testAccProvider,
	}
}

func TestProvider(t *testing.T) {
	if err := Provider().(*schema.Provider).InternalValidate(); err != nil {
		t.Fatalf("err: %s", err)
	}
}

func TestAccDockerProvider_WithIncompleteRegistryAuth(t *testing.T) {
	resource.Test(t, resource.TestCase{
		PreCheck:  func() { testAccPreCheck(t) },
		Providers: testAccProviders,
		Steps: []resource.TestStep{
			{
				Config:      testAccDockerProviderWithIncompleteAuthConfig,
				ExpectError: regexp.MustCompile(`401 Unauthorized`),
			},
		},
	})
}

func TestProvider_impl(t *testing.T) {
	var _ terraform.ResourceProvider = Provider()
}

func testAccPreCheck(t *testing.T) {
	cmd := exec.Command("docker", "version")
	if err := cmd.Run(); err != nil {
		t.Fatalf("Docker must be available: %s", err)
	}

	cmd = exec.Command("docker", "node", "ls")
	if err := cmd.Run(); err != nil {
		cmd = exec.Command("docker", "swarm", "init")
		if err := cmd.Run(); err != nil {
			t.Fatalf("Docker swarm could not be initialized: %s", err)
		}
	}

	err := testAccProvider.Configure(terraform.NewResourceConfigRaw(nil))
	if err != nil {
		t.Fatal(err)
	}
}

const testAccDockerProviderWithIncompleteAuthConfig = `
provider "docker" {
	alias = "private"
	registry_auth {
	  address  = ""
	  username = ""
	  password = ""
	}
}
data "docker_registry_image" "foobar" {
	provider = "docker.private"
	name = "localhost:15000/helloworld:1.0"
}
`