/*
Copyright 2016 Citrix Systems, Inc

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package citrixadc

import (
	"fmt"
	"strings"
	"testing"

	"github.com/citrix/adc-nitro-go/service"
	"github.com/hashicorp/terraform-plugin-sdk/helper/resource"
	"github.com/hashicorp/terraform-plugin-sdk/terraform"
)

const testAccLbvserver_responderpolicy_binding_basic_step1 = `
resource "citrixadc_lbvserver" "tf_lbvserver" {
  ipv46       = "10.10.10.33"
  name        = "tf_lbvserver"
  port        = 80
  servicetype = "HTTP"
}

resource "citrixadc_lbvserver" "tf_lbvserver2" {
  ipv46       = "10.10.10.34"
  name        = "tf_lbvserver2"
  port        = 80
  servicetype = "HTTP"
}

resource "citrixadc_responderpolicy" "tf_responder_policy" {
  name   = "tf_responder_policy"
  action = "NOOP"
  rule   = "HTTP.REQ.URL.PATH_AND_QUERY.CONTAINS(\"nosuchthing\")"
}

resource "citrixadc_lbvserver_responderpolicy_binding" "tf_bind" {
    name = citrixadc_lbvserver.tf_lbvserver.name
    policyname = citrixadc_responderpolicy.tf_responder_policy.name
    priority = 100
    bindpoint = "REQUEST"
}

resource "citrixadc_lbvserver_responderpolicy_binding" "tf_bind2" {
    name = citrixadc_lbvserver.tf_lbvserver2.name
    policyname = citrixadc_responderpolicy.tf_responder_policy.name
    priority = 100
    bindpoint = "REQUEST"
}
`

const testAccLbvserver_responderpolicy_binding_basic_step2 = `
resource "citrixadc_lbvserver" "tf_lbvserver" {
  ipv46       = "10.10.10.33"
  name        = "tf_lbvserver"
  port        = 80
  servicetype = "HTTP"
}

resource "citrixadc_lbvserver" "tf_lbvserver2" {
  ipv46       = "10.10.10.34"
  name        = "tf_lbvserver2"
  port        = 80
  servicetype = "HTTP"
}

resource "citrixadc_responderpolicy" "tf_responder_policy" {
  name   = "tf_responder_policy"
  action = "NOOP"
  rule   = "HTTP.REQ.URL.PATH_AND_QUERY.CONTAINS(\"nosuchthing\")"
}

resource "citrixadc_lbvserver_responderpolicy_binding" "tf_bind" {
    name = citrixadc_lbvserver.tf_lbvserver.name
    policyname = citrixadc_responderpolicy.tf_responder_policy.name
    priority = 120
    bindpoint = "REQUEST"
}

resource "citrixadc_lbvserver_responderpolicy_binding" "tf_bind2" {
    name = citrixadc_lbvserver.tf_lbvserver2.name
    policyname = citrixadc_responderpolicy.tf_responder_policy.name
    priority = 110
    bindpoint = "REQUEST"
}
`

func TestAccLbvserver_responderpolicy_binding_basic(t *testing.T) {
	resource.Test(t, resource.TestCase{
		PreCheck:     func() { testAccPreCheck(t) },
		Providers:    testAccProviders,
		CheckDestroy: testAccCheckLbvserver_responderpolicy_bindingDestroy,
		Steps: []resource.TestStep{
			{
				Config: testAccLbvserver_responderpolicy_binding_basic_step1,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckLbvserver_responderpolicy_bindingExist("citrixadc_lbvserver_responderpolicy_binding.tf_bind", nil),
					testAccCheckLbvserver_responderpolicy_bindingExist("citrixadc_lbvserver_responderpolicy_binding.tf_bind2", nil),
				),
			},
			{
				Config: testAccLbvserver_responderpolicy_binding_basic_step2,
				Check: resource.ComposeTestCheckFunc(
					testAccCheckLbvserver_responderpolicy_bindingExist("citrixadc_lbvserver_responderpolicy_binding.tf_bind", nil),
					testAccCheckLbvserver_responderpolicy_bindingExist("citrixadc_lbvserver_responderpolicy_binding.tf_bind2", nil),
				),
			},
		},
	})
}

func testAccCheckLbvserver_responderpolicy_bindingExist(n string, id *string) resource.TestCheckFunc {
	return func(s *terraform.State) error {
		rs, ok := s.RootModule().Resources[n]
		if !ok {
			return fmt.Errorf("Not found: %s", n)
		}

		if rs.Primary.ID == "" {
			return fmt.Errorf("No lbvserver_responderpolicy_binding name is set")
		}

		if id != nil {
			if *id != "" && *id != rs.Primary.ID {
				return fmt.Errorf("Resource ID has changed!")
			}

			*id = rs.Primary.ID
		}

		client := testAccProvider.Meta().(*NetScalerNitroClient).client
		bindingId := rs.Primary.ID
		idSlice := strings.SplitN(bindingId, ",", 2)
		name := idSlice[0]
		policyname := idSlice[1]

		findParams := service.FindParams{
			ResourceType:             "lbvserver_responderpolicy_binding",
			ResourceName:             name,
			ResourceMissingErrorCode: 258,
		}
		dataArr, err := client.FindResourceArrayWithParams(findParams)

		// Unexpected error
		if err != nil {
			return err
		}

		// Iterate through results to find the one with the right policy name
		foundIndex := -1
		for i, v := range dataArr {
			if v["policyname"].(string) == policyname {
				foundIndex = i
				break
			}
		}

		// Resource is missing
		if foundIndex == -1 {
			return fmt.Errorf("Cannot find lbvserver_responderpolicy_binding %s", bindingId)
		}

		return nil
	}
}

func testAccCheckLbvserver_responderpolicy_bindingDestroy(s *terraform.State) error {
	nsClient := testAccProvider.Meta().(*NetScalerNitroClient).client

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

		if rs.Primary.ID == "" {
			return fmt.Errorf("No name is set")
		}

		_, err := nsClient.FindResource(service.Lbvserver_responderpolicy_binding.Type(), rs.Primary.ID)
		if err == nil {
			return fmt.Errorf("lbvserver_responderpolicy_binding %s still exists", rs.Primary.ID)
		}

	}

	return nil
}
