package connect_test

import (
	"fmt"
	"testing"

	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/service/connect"
	"github.com/hashicorp/aws-sdk-go-base/v2/awsv1shim/v2/tfawserr"
	sdkacctest "github.com/hashicorp/terraform-plugin-sdk/v2/helper/acctest"
	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
	"github.com/hashicorp/terraform-plugin-sdk/v2/terraform"
	"github.com/hashicorp/terraform-provider-aws/internal/acctest"
	"github.com/hashicorp/terraform-provider-aws/internal/conns"
	tfconnect "github.com/hashicorp/terraform-provider-aws/internal/service/connect"
)

//Serialized acceptance tests due to Connect account limits (max 2 parallel tests)
func TestAccConnectUserHierarchyGroup_serial(t *testing.T) {
	testCases := map[string]func(t *testing.T){
		"basic":               testAccUserHierarchyGroup_basic,
		"disappears":          testAccUserHierarchyGroup_disappears,
		"set_parent_group_id": testAccUserHierarchyGroup_parentGroupId,
	}

	for name, tc := range testCases {
		tc := tc
		t.Run(name, func(t *testing.T) {
			tc(t)
		})
	}
}

func testAccUserHierarchyGroup_basic(t *testing.T) {
	var v connect.DescribeUserHierarchyGroupOutput
	rName := sdkacctest.RandomWithPrefix("resource-test-terraform")
	rName2 := sdkacctest.RandomWithPrefix("resource-test-terraform")
	rName3 := sdkacctest.RandomWithPrefix("resource-test-terraform")
	resourceName := "aws_connect_user_hierarchy_group.test"

	resource.Test(t, resource.TestCase{
		PreCheck:          func() { acctest.PreCheck(t) },
		ErrorCheck:        acctest.ErrorCheck(t, connect.EndpointsID),
		ProviderFactories: acctest.ProviderFactories,
		CheckDestroy:      testAccCheckUserHierarchyGroupDestroy,
		Steps: []resource.TestStep{
			{
				Config: testAccUserHierarchyGroupConfig_basic(rName, rName2),
				Check: resource.ComposeTestCheckFunc(
					testAccCheckUserHierarchyGroupExists(resourceName, &v),
					resource.TestCheckResourceAttrSet(resourceName, "arn"),
					resource.TestCheckResourceAttrSet(resourceName, "hierarchy_group_id"),
					resource.TestCheckResourceAttr(resourceName, "hierarchy_path.#", "1"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_one.0.arn", resourceName, "arn"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_one.0.id", resourceName, "hierarchy_group_id"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_one.0.name", resourceName, "name"),
					resource.TestCheckResourceAttrPair(resourceName, "instance_id", "aws_connect_instance.test", "id"),
					resource.TestCheckResourceAttr(resourceName, "level_id", "1"),
					resource.TestCheckResourceAttr(resourceName, "name", rName2),
					resource.TestCheckResourceAttr(resourceName, "tags.%", "1"),
					resource.TestCheckResourceAttr(resourceName, "tags.Name", "Test User Hierarchy Group"),
				),
			},
			{
				ResourceName:      resourceName,
				ImportState:       true,
				ImportStateVerify: true,
			},
			{
				// Update name
				Config: testAccUserHierarchyGroupConfig_basic(rName, rName3),
				Check: resource.ComposeAggregateTestCheckFunc(
					testAccCheckUserHierarchyGroupExists(resourceName, &v),
					resource.TestCheckResourceAttrSet(resourceName, "arn"),
					resource.TestCheckResourceAttrSet(resourceName, "hierarchy_group_id"),
					resource.TestCheckResourceAttr(resourceName, "hierarchy_path.#", "1"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_one.0.arn", resourceName, "arn"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_one.0.id", resourceName, "hierarchy_group_id"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_one.0.name", resourceName, "name"),
					resource.TestCheckResourceAttrPair(resourceName, "instance_id", "aws_connect_instance.test", "id"),
					resource.TestCheckResourceAttr(resourceName, "level_id", "1"),
					resource.TestCheckResourceAttr(resourceName, "name", rName3),
					resource.TestCheckResourceAttr(resourceName, "tags.%", "1"),
					resource.TestCheckResourceAttr(resourceName, "tags.Name", "Test User Hierarchy Group"),
				),
			},
		},
	})
}

func testAccUserHierarchyGroup_parentGroupId(t *testing.T) {
	var v connect.DescribeUserHierarchyGroupOutput
	rName := sdkacctest.RandomWithPrefix("resource-test-terraform")
	rName2 := sdkacctest.RandomWithPrefix("resource-test-terraform")
	rName3 := sdkacctest.RandomWithPrefix("resource-test-terraform")
	resourceName := "aws_connect_user_hierarchy_group.test"

	resource.Test(t, resource.TestCase{
		PreCheck:          func() { acctest.PreCheck(t) },
		ErrorCheck:        acctest.ErrorCheck(t, connect.EndpointsID),
		ProviderFactories: acctest.ProviderFactories,
		CheckDestroy:      testAccCheckUserHierarchyGroupDestroy,
		Steps: []resource.TestStep{
			{
				Config: testAccUserHierarchyGroupConfig_parentID(rName, rName2, rName3),
				Check: resource.ComposeTestCheckFunc(
					testAccCheckUserHierarchyGroupExists(resourceName, &v),
					resource.TestCheckResourceAttrSet(resourceName, "arn"),
					resource.TestCheckResourceAttrSet(resourceName, "hierarchy_group_id"),
					resource.TestCheckResourceAttr(resourceName, "hierarchy_path.#", "1"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_one.0.arn", "aws_connect_user_hierarchy_group.parent", "arn"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_one.0.id", "aws_connect_user_hierarchy_group.parent", "hierarchy_group_id"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_one.0.name", "aws_connect_user_hierarchy_group.parent", "name"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_two.0.arn", resourceName, "arn"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_two.0.id", resourceName, "hierarchy_group_id"),
					resource.TestCheckResourceAttrPair(resourceName, "hierarchy_path.0.level_two.0.name", resourceName, "name"),
					resource.TestCheckResourceAttrPair(resourceName, "instance_id", "aws_connect_instance.test", "id"),
					resource.TestCheckResourceAttr(resourceName, "level_id", "2"),
					resource.TestCheckResourceAttr(resourceName, "name", rName3),
					resource.TestCheckResourceAttrPair(resourceName, "parent_group_id", "aws_connect_user_hierarchy_group.parent", "hierarchy_group_id"),
					resource.TestCheckResourceAttr(resourceName, "tags.%", "1"),
					resource.TestCheckResourceAttr(resourceName, "tags.Name", "Test User Hierarchy Group Child"),
				),
			},
		},
	})
}

func testAccUserHierarchyGroup_disappears(t *testing.T) {
	var v connect.DescribeUserHierarchyGroupOutput
	rName := sdkacctest.RandomWithPrefix("resource-test-terraform")
	rName2 := sdkacctest.RandomWithPrefix("resource-test-terraform")
	resourceName := "aws_connect_user_hierarchy_group.test"

	resource.Test(t, resource.TestCase{
		PreCheck:          func() { acctest.PreCheck(t) },
		ErrorCheck:        acctest.ErrorCheck(t, connect.EndpointsID),
		ProviderFactories: acctest.ProviderFactories,
		CheckDestroy:      testAccCheckUserHierarchyGroupDestroy,
		Steps: []resource.TestStep{
			{
				Config: testAccUserHierarchyGroupConfig_basic(rName, rName2),
				Check: resource.ComposeTestCheckFunc(
					testAccCheckUserHierarchyGroupExists(resourceName, &v),
					acctest.CheckResourceDisappears(acctest.Provider, tfconnect.ResourceUserHierarchyGroup(), resourceName),
				),
				ExpectNonEmptyPlan: true,
			},
		},
	})
}

func testAccCheckUserHierarchyGroupExists(resourceName string, function *connect.DescribeUserHierarchyGroupOutput) resource.TestCheckFunc {
	return func(s *terraform.State) error {
		rs, ok := s.RootModule().Resources[resourceName]
		if !ok {
			return fmt.Errorf("Connect User Hierarchy Group not found: %s", resourceName)
		}

		if rs.Primary.ID == "" {
			return fmt.Errorf("Connect User Hierarchy Group ID not set")
		}
		instanceID, userHierarchyGroupID, err := tfconnect.UserHierarchyGroupParseID(rs.Primary.ID)

		if err != nil {
			return err
		}

		conn := acctest.Provider.Meta().(*conns.AWSClient).ConnectConn

		params := &connect.DescribeUserHierarchyGroupInput{
			HierarchyGroupId: aws.String(userHierarchyGroupID),
			InstanceId:       aws.String(instanceID),
		}

		getFunction, err := conn.DescribeUserHierarchyGroup(params)
		if err != nil {
			return err
		}

		*function = *getFunction

		return nil
	}
}

func testAccCheckUserHierarchyGroupDestroy(s *terraform.State) error {
	for _, rs := range s.RootModule().Resources {
		if rs.Type != "aws_connect_user_hierarchy_group" {
			continue
		}

		conn := acctest.Provider.Meta().(*conns.AWSClient).ConnectConn

		instanceID, userHierarchyGroupID, err := tfconnect.UserHierarchyGroupParseID(rs.Primary.ID)

		if err != nil {
			return err
		}

		params := &connect.DescribeUserHierarchyGroupInput{
			HierarchyGroupId: aws.String(userHierarchyGroupID),
			InstanceId:       aws.String(instanceID),
		}

		_, err = conn.DescribeUserHierarchyGroup(params)

		if tfawserr.ErrCodeEquals(err, connect.ErrCodeResourceNotFoundException) {
			continue
		}

		if err != nil {
			return err
		}
	}
	return nil
}

func testAccUserHierarchyGroupBaseConfig(rName string) string {
	return fmt.Sprintf(`
resource "aws_connect_instance" "test" {
  identity_management_type = "CONNECT_MANAGED"
  inbound_calls_enabled    = true
  instance_alias           = %[1]q
  outbound_calls_enabled   = true
}

resource "aws_connect_user_hierarchy_structure" "test" {
  instance_id = aws_connect_instance.test.id

  hierarchy_structure {
    level_one {
      name = "levelone"
    }

    level_two {
      name = "leveltwo"
    }

    level_three {
      name = "levelthree"
    }

    level_four {
      name = "levelfour"
    }

    level_five {
      name = "levelfive"
    }
  }
}
`, rName)
}

func testAccUserHierarchyGroupConfig_basic(rName, rName2 string) string {
	return acctest.ConfigCompose(
		testAccUserHierarchyGroupBaseConfig(rName),
		fmt.Sprintf(`
resource "aws_connect_user_hierarchy_group" "test" {
  instance_id = aws_connect_instance.test.id
  name        = %[1]q

  tags = {
    "Name" = "Test User Hierarchy Group"
  }

  depends_on = [
    aws_connect_user_hierarchy_structure.test,
  ]
}
`, rName2))
}

func testAccUserHierarchyGroupConfig_parentID(rName, rName2, rName3 string) string {
	return acctest.ConfigCompose(
		testAccUserHierarchyGroupBaseConfig(rName),
		fmt.Sprintf(`
resource "aws_connect_user_hierarchy_group" "parent" {
  instance_id = aws_connect_instance.test.id
  name        = %[1]q

  tags = {
    "Name" = "Test User Hierarchy Group Parent"
  }

  depends_on = [
    aws_connect_user_hierarchy_structure.test,
  ]
}

resource "aws_connect_user_hierarchy_group" "test" {
  instance_id     = aws_connect_instance.test.id
  name            = %[2]q
  parent_group_id = aws_connect_user_hierarchy_group.parent.hierarchy_group_id

  tags = {
    "Name" = "Test User Hierarchy Group Child"
  }
}
`, rName2, rName3))
}
