package alicloud

import (
	"fmt"
	"log"
	"os"
	"reflect"
	"strconv"
	"strings"
	"testing"
	"time"

	"github.com/agiledragon/gomonkey/v2"
	"github.com/alibabacloud-go/tea/tea"
	"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
	"github.com/hashicorp/terraform-plugin-sdk/terraform"
	"github.com/stretchr/testify/assert"

	"github.com/PaesslerAG/jsonpath"
	util "github.com/alibabacloud-go/tea-utils/service"

	"github.com/alibabacloud-go/tea-rpc/client"
	"github.com/aliyun/terraform-provider-alicloud/alicloud/connectivity"
	"github.com/hashicorp/terraform-plugin-sdk/helper/acctest"
	"github.com/hashicorp/terraform-plugin-sdk/helper/resource"
)

func init() {
	resource.AddTestSweepers("alicloud_havip", &resource.Sweeper{
		Name: "alicloud_havip",
		F:    testSweepHaVip,
		// When implemented, these should be removed firstly
		Dependencies: []string{
			"alicloud_havip_attachment",
		},
	})
}

func testSweepHaVip(region string) error {
	rawClient, err := sharedClientForRegion(region)
	if err != nil {
		return fmt.Errorf("error getting Alicloud client: %s", err)
	}
	client := rawClient.(*connectivity.AliyunClient)

	prefixes := []string{
		"tf-testAcc",
		"tf_testAcc",
	}
	action := "DescribeHaVips"
	request := make(map[string]interface{})
	request["RegionId"] = client.RegionId
	request["PageSize"] = PageSizeLarge
	request["PageNumber"] = 1
	var response map[string]interface{}
	haVipIds := make([]string, 0)
	for {
		response, err = client.RpcPost("Vpc", "2016-04-28", action, nil, request, true)
		if err != nil {
			log.Printf("[ERROR] Failed to retrieve HaVips in service list: %s", err)
			return nil
		}
		resp, err := jsonpath.Get("$.HaVips.HaVip", response)
		if err != nil {
			return WrapErrorf(err, FailedGetAttributeMsg, action, "$.HaVips.HaVip", response)
		}
		result, _ := resp.([]interface{})
		for _, v := range result {
			item := v.(map[string]interface{})
			name := fmt.Sprint(item["Name"])
			id := fmt.Sprint(item["HaVipId"])
			skip := true
			if !sweepAll() {
				for _, prefix := range prefixes {
					if strings.HasPrefix(strings.ToLower(name), strings.ToLower(prefix)) {
						skip = false
						break
					}
				}
				if skip {
					log.Printf("[INFO] Skipping HaVip: %s (%s)", name, id)
					continue
				}
			}
			haVipIds = append(haVipIds, id)
		}
		if len(result) < PageSizeLarge {
			break
		}
		request["PageNumber"] = request["PageNumber"].(int) + 1
	}

	for _, id := range haVipIds {
		log.Printf("[INFO] Deleting HaVip: (%s)", id)
		action := "DeleteHaVip"
		request := map[string]interface{}{
			"HaVipId": id,
		}
		request["RegionId"] = client.RegionId
		wait := incrementalWait(3*time.Second, 3*time.Second)
		err = resource.Retry(5*time.Minute, func() *resource.RetryError {
			_, err = client.RpcPost("Vpc", "2016-04-28", action, nil, request, false)
			if err != nil {
				if NeedRetry(err) {
					wait()
					return resource.RetryableError(err)
				}
				return resource.NonRetryableError(err)
			}
			return nil
		})
		if err != nil {
			log.Printf("[ERROR] Failed to delete HaVip  (%s): %v", id, err)
		}
	}
	return nil
}

func TestAccAlicloudVPCHavip_basic(t *testing.T) {
	var v map[string]interface{}
	resourceId := "alicloud_havip.default"
	ra := resourceAttrInit(resourceId, AlicloudHavipMap0)
	rc := resourceCheckInitWithDescribeMethod(resourceId, &v, func() interface{} {
		return &VpcService{testAccProvider.Meta().(*connectivity.AliyunClient)}
	}, "DescribeHavip")
	rac := resourceAttrCheckInit(rc, ra)
	testAccCheck := rac.resourceAttrMapUpdateSet()
	rand := acctest.RandIntRange(10000, 99999)
	name := fmt.Sprintf("tf-testacc%shavip%d", defaultRegionToTest, rand)
	testAccConfig := resourceTestAccConfigFunc(resourceId, name, AlicloudHavipBasicDependence0)
	resource.Test(t, resource.TestCase{
		PreCheck: func() {
			testAccPreCheck(t)
		},

		IDRefreshName: resourceId,
		Providers:     testAccProviders,
		CheckDestroy:  rac.checkResourceDestroy(),
		Steps: []resource.TestStep{
			{
				Config: testAccConfig(map[string]interface{}{
					"vswitch_id": "${alicloud_vswitch.default.id}",
				}),
				Check: resource.ComposeTestCheckFunc(
					testAccCheck(map[string]string{
						"vswitch_id": CHECKSET,
					}),
				),
			},
			{
				Config: testAccConfig(map[string]interface{}{
					"description": name + "1",
				}),
				Check: resource.ComposeTestCheckFunc(
					testAccCheck(map[string]string{
						"description": name + "1",
					}),
				),
			},
			{
				Config: testAccConfig(map[string]interface{}{
					"havip_name": name + "1",
				}),
				Check: resource.ComposeTestCheckFunc(
					testAccCheck(map[string]string{
						"havip_name": name + "1",
					}),
				),
			},
			{
				Config: testAccConfig(map[string]interface{}{
					"description": name,
					"havip_name":  name,
				}),
				Check: resource.ComposeTestCheckFunc(
					testAccCheck(map[string]string{
						"description": name,
						"havip_name":  name,
					}),
				),
			},
			{
				ResourceName:      resourceId,
				ImportState:       true,
				ImportStateVerify: true,
			},
		},
	})
}

func TestAccAlicloudVPCHavip_basic1(t *testing.T) {
	var v map[string]interface{}
	resourceId := "alicloud_havip.default"
	ra := resourceAttrInit(resourceId, AlicloudHavipMap0)
	rc := resourceCheckInitWithDescribeMethod(resourceId, &v, func() interface{} {
		return &VpcService{testAccProvider.Meta().(*connectivity.AliyunClient)}
	}, "DescribeHavip")
	rac := resourceAttrCheckInit(rc, ra)
	testAccCheck := rac.resourceAttrMapUpdateSet()
	rand := acctest.RandIntRange(10000, 99999)
	name := fmt.Sprintf("tf-testacc%shavip%d", defaultRegionToTest, rand)
	testAccConfig := resourceTestAccConfigFunc(resourceId, name, AlicloudHavipBasicDependence0)
	resource.Test(t, resource.TestCase{
		PreCheck: func() {
			testAccPreCheck(t)
		},

		IDRefreshName: resourceId,
		Providers:     testAccProviders,
		CheckDestroy:  rac.checkResourceDestroy(),
		Steps: []resource.TestStep{
			{
				Config: testAccConfig(map[string]interface{}{
					"vswitch_id":  "${alicloud_vswitch.default.id}",
					"description": name,
					"havip_name":  name,
					"ip_address":  "${cidrhost(alicloud_vswitch.default.cidr_block, 3)}",
				}),
				Check: resource.ComposeTestCheckFunc(
					testAccCheck(map[string]string{
						"vswitch_id":  CHECKSET,
						"description": name,
						"havip_name":  name,
						"ip_address":  CHECKSET,
					}),
				),
			},
			{
				ResourceName:      resourceId,
				ImportState:       true,
				ImportStateVerify: true,
			},
		},
	})
}

var AlicloudHavipMap0 = map[string]string{}

func AlicloudHavipBasicDependence0(name string) string {
	return fmt.Sprintf(`
variable "name" {
  default = "%s"
}

data "alicloud_zones" "default" {
  available_resource_creation = "VSwitch"
}

resource "alicloud_vpc" "default" {
  cidr_block = "192.168.0.0/16"
  vpc_name = var.name
}

resource "alicloud_vswitch" "default" {
  vswitch_name = var.name
  zone_id = data.alicloud_zones.default.zones.0.id
  cidr_block = "192.168.0.0/21"
  vpc_id = alicloud_vpc.default.id
}
`, name)
}

func TestUnitAlicloudHavip(t *testing.T) {
	p := Provider().(*schema.Provider).ResourcesMap
	d, _ := schema.InternalMap(p["alicloud_havip"].Schema).Data(nil, nil)
	dCreate, _ := schema.InternalMap(p["alicloud_havip"].Schema).Data(nil, nil)
	dCreate.MarkNewResource()
	for key, value := range map[string]interface{}{
		"description": "description",
		"ip_address":  "192.168.0.10",
		"vswitch_id":  "vswitch_id",
		"havip_name":  "name",
	} {
		err := dCreate.Set(key, value)
		assert.Nil(t, err)
		err = d.Set(key, value)
		assert.Nil(t, err)
	}
	region := os.Getenv("ALICLOUD_REGION")
	rawClient, err := sharedClientForRegion(region)
	if err != nil {
		t.Skipf("Skipping the test case with err: %s", err)
		t.Skipped()
	}
	rawClient = rawClient.(*connectivity.AliyunClient)
	ReadMockResponse := map[string]interface{}{
		"HaVips": map[string]interface{}{
			"HaVip": []interface{}{
				map[string]interface{}{
					"Name":        "havip_name",
					"IpAddress":   "192.168.0.10",
					"Description": "description",
					"Status":      "Available",
					"VSwitchId":   "vswitch_id",
					"HaVipId":     "MockHaVipId",
				},
			},
		},
	}

	responseMock := map[string]func(errorCode string) (map[string]interface{}, error){
		"RetryError": func(errorCode string) (map[string]interface{}, error) {
			return nil, &tea.SDKError{
				Code:       String(errorCode),
				Data:       String(errorCode),
				Message:    String(errorCode),
				StatusCode: tea.Int(400),
			}
		},
		"NotFoundError": func(errorCode string) (map[string]interface{}, error) {
			result := ReadMockResponse
			return result, nil
		},
		"NoRetryError": func(errorCode string) (map[string]interface{}, error) {
			return nil, &tea.SDKError{
				Code:       String(errorCode),
				Data:       String(errorCode),
				Message:    String(errorCode),
				StatusCode: tea.Int(400),
			}
		},
		"CreateNormal": func(errorCode string) (map[string]interface{}, error) {
			result := ReadMockResponse
			result["HaVipId"] = "MockHaVipId"
			return result, nil
		},
		"UpdateNormal": func(errorCode string) (map[string]interface{}, error) {
			result := ReadMockResponse
			return result, nil
		},
		"DeleteNormal": func(errorCode string) (map[string]interface{}, error) {
			result := ReadMockResponse
			return result, nil
		},
		"ReadNormal": func(errorCode string) (map[string]interface{}, error) {
			result := ReadMockResponse
			return result, nil
		},
		"ReadDescribeHaVipsNotFound": func(errorCode string) (map[string]interface{}, error) {
			result := map[string]interface{}{
				"HaVips": map[string]interface{}{
					"HaVip": []interface{}{},
				},
			}
			return result, nil
		},
	}
	// Create
	t.Run("CreateClientAbnormal", func(t *testing.T) {
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&connectivity.AliyunClient{}), "NewVpcClient", func(_ *connectivity.AliyunClient) (*client.Client, error) {
			return nil, &tea.SDKError{
				Code:       String("loadEndpoint error"),
				Data:       String("loadEndpoint error"),
				Message:    String("loadEndpoint error"),
				StatusCode: tea.Int(400),
			}
		})
		err := resourceAlicloudHavipCreate(d, rawClient)
		patches.Reset()
		assert.NotNil(t, err)
	})
	t.Run("CreateAbnormal", func(t *testing.T) {
		retryFlag := true
		noRetryFlag := true
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&client.Client{}), "DoRequest", func(_ *client.Client, _ *string, _ *string, _ *string, _ *string, _ *string, _ map[string]interface{}, _ map[string]interface{}, _ *util.RuntimeOptions) (map[string]interface{}, error) {
			if retryFlag {
				retryFlag = false
				return responseMock["RetryError"]("Throttling")
			} else if noRetryFlag {
				noRetryFlag = false
				return responseMock["NoRetryError"]("NonRetryableError")
			}
			return responseMock["CreateNormal"]("")
		})
		err := resourceAlicloudHavipCreate(d, rawClient)
		patches.Reset()
		assert.NotNil(t, err)
	})
	t.Run("CreateNormal", func(t *testing.T) {
		retryFlag := false
		noRetryFlag := false
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&client.Client{}), "DoRequest", func(_ *client.Client, _ *string, _ *string, _ *string, _ *string, _ *string, _ map[string]interface{}, _ map[string]interface{}, _ *util.RuntimeOptions) (map[string]interface{}, error) {
			if retryFlag {
				retryFlag = false
				return responseMock["RetryError"]("Throttling")
			} else if noRetryFlag {
				noRetryFlag = false
				return responseMock["NoRetryError"]("NonRetryableError")
			}
			return responseMock["CreateNormal"]("")
		})
		err := resourceAlicloudHavipCreate(dCreate, rawClient)
		patches.Reset()
		assert.Nil(t, err)
	})

	t.Run("CreateNonRetryableError", func(t *testing.T) {
		retryFlag := false
		noRetryFlag := true
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&client.Client{}), "DoRequest", func(_ *client.Client, _ *string, _ *string, _ *string, _ *string, _ *string, _ map[string]interface{}, _ map[string]interface{}, _ *util.RuntimeOptions) (map[string]interface{}, error) {
			if retryFlag {
				retryFlag = false
				return responseMock["RetryError"]("Throttling")
			} else if noRetryFlag {
				noRetryFlag = false
				return responseMock["NoRetryError"]("NonRetryableError")
			}
			return responseMock["CreateNormal"]("")
		})
		err := resourceAlicloudHavipCreate(dCreate, rawClient)
		patches.Reset()
		assert.NotNil(t, err)
	})

	// Set ID for Update and Delete Method
	d.SetId("MockHaVipId")
	// Update
	t.Run("UpdateClientAbnormal", func(t *testing.T) {
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&connectivity.AliyunClient{}), "NewVpcClient", func(_ *connectivity.AliyunClient) (*client.Client, error) {
			return nil, &tea.SDKError{
				Code:       String("loadEndpoint error"),
				Data:       String("loadEndpoint error"),
				Message:    String("loadEndpoint error"),
				StatusCode: tea.Int(400),
			}
		})

		err := resourceAlicloudHavipUpdate(d, rawClient)
		patches.Reset()
		assert.NotNil(t, err)
	})
	t.Run("UpdateVpcHavIpAbnormal", func(t *testing.T) {
		diff := terraform.NewInstanceDiff()
		for _, key := range []string{"description", "havip_name"} {
			switch p["alicloud_havip"].Schema[key].Type {
			case schema.TypeString:
				diff.SetAttribute(key, &terraform.ResourceAttrDiff{Old: d.Get(key).(string), New: d.Get(key).(string) + "_update"})
			case schema.TypeBool:
				diff.SetAttribute(key, &terraform.ResourceAttrDiff{Old: strconv.FormatBool(d.Get(key).(bool)), New: strconv.FormatBool(true)})
			case schema.TypeMap:
				diff.SetAttribute("tags.%", &terraform.ResourceAttrDiff{Old: "0", New: "2"})
				diff.SetAttribute("tags.For", &terraform.ResourceAttrDiff{Old: "", New: "Test"})
				diff.SetAttribute("tags.Created", &terraform.ResourceAttrDiff{Old: "", New: "TF"})
			}
		}
		resourceData1, _ := schema.InternalMap(p["alicloud_havip"].Schema).Data(nil, diff)
		resourceData1.SetId(d.Id())
		retryFlag := true
		noRetryFlag := true
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&client.Client{}), "DoRequest", func(_ *client.Client, _ *string, _ *string, _ *string, _ *string, _ *string, _ map[string]interface{}, _ map[string]interface{}, _ *util.RuntimeOptions) (map[string]interface{}, error) {
			if retryFlag {
				retryFlag = false
				return responseMock["RetryError"]("Throttling")
			} else if noRetryFlag {
				noRetryFlag = false
				return responseMock["NoRetryError"]("NonRetryableError")
			}
			return responseMock["UpdateNormal"]("")
		})
		err := resourceAlicloudHavipUpdate(resourceData1, rawClient)
		patches.Reset()
		assert.NotNil(t, err)
	})
	t.Run("UpdateVpcHavIpNormal", func(t *testing.T) {
		diff := terraform.NewInstanceDiff()
		for _, key := range []string{"description", "havip_name"} {
			switch p["alicloud_havip"].Schema[key].Type {
			case schema.TypeString:
				diff.SetAttribute(key, &terraform.ResourceAttrDiff{Old: d.Get(key).(string), New: d.Get(key).(string) + "_update"})
			case schema.TypeBool:
				diff.SetAttribute(key, &terraform.ResourceAttrDiff{Old: strconv.FormatBool(d.Get(key).(bool)), New: strconv.FormatBool(true)})
			case schema.TypeMap:
				diff.SetAttribute("tags.%", &terraform.ResourceAttrDiff{Old: "0", New: "2"})
				diff.SetAttribute("tags.For", &terraform.ResourceAttrDiff{Old: "", New: "Test"})
				diff.SetAttribute("tags.Created", &terraform.ResourceAttrDiff{Old: "", New: "TF"})
			}
		}
		resourceData1, _ := schema.InternalMap(p["alicloud_havip"].Schema).Data(nil, diff)
		resourceData1.SetId(d.Id())
		retryFlag := false
		noRetryFlag := false
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&client.Client{}), "DoRequest", func(_ *client.Client, _ *string, _ *string, _ *string, _ *string, _ *string, _ map[string]interface{}, _ map[string]interface{}, _ *util.RuntimeOptions) (map[string]interface{}, error) {
			if retryFlag {
				retryFlag = false
				return responseMock["RetryError"]("Throttling")
			} else if noRetryFlag {
				noRetryFlag = false
				return responseMock["NoRetryError"]("NonRetryableError")
			}
			return responseMock["UpdateNormal"]("")
		})
		err := resourceAlicloudHavipUpdate(resourceData1, rawClient)
		patches.Reset()
		assert.Nil(t, err)
	})

	// Delete
	t.Run("DeleteClientAbnormal", func(t *testing.T) {
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&connectivity.AliyunClient{}), "NewVpcClient", func(_ *connectivity.AliyunClient) (*client.Client, error) {
			return nil, &tea.SDKError{
				Code:       String("loadEndpoint error"),
				Data:       String("loadEndpoint error"),
				Message:    String("loadEndpoint error"),
				StatusCode: tea.Int(400),
			}
		})
		err := resourceAlicloudHavipDelete(d, rawClient)
		patches.Reset()
		assert.NotNil(t, err)
	})
	t.Run("DeleteMockAbnormal", func(t *testing.T) {
		retryFlag := true
		noRetryFlag := true
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&client.Client{}), "DoRequest", func(_ *client.Client, _ *string, _ *string, _ *string, _ *string, _ *string, _ map[string]interface{}, _ map[string]interface{}, _ *util.RuntimeOptions) (map[string]interface{}, error) {
			if retryFlag {
				retryFlag = false
				return responseMock["RetryError"]("Throttling")
			} else if noRetryFlag {
				noRetryFlag = false
				return responseMock["NoRetryError"]("NonRetryableError")
			}
			return responseMock["DeleteNormal"]("")
		})
		err := resourceAlicloudHavipDelete(d, rawClient)
		patches.Reset()
		assert.NotNil(t, err)
	})
	t.Run("DeleteMockNormal", func(t *testing.T) {
		retryFlag := false
		noRetryFlag := false
		patches := gomonkey.ApplyMethod(reflect.TypeOf(&client.Client{}), "DoRequest", func(_ *client.Client, _ *string, _ *string, _ *string, _ *string, _ *string, _ map[string]interface{}, _ map[string]interface{}, _ *util.RuntimeOptions) (map[string]interface{}, error) {
			if retryFlag {
				retryFlag = false
				return responseMock["RetryError"]("Throttling")
			} else if noRetryFlag {
				noRetryFlag = false
				return responseMock["NoRetryError"]("NonRetryableError")
			}
			return responseMock["DeleteNormal"]("")
		})
		err := resourceAlicloudHavipDelete(d, rawClient)
		patches.Reset()
		assert.Nil(t, err)
	})

	//Read
	t.Run("ReadDescribeHaVipsNotFound", func(t *testing.T) {
		patcheDorequest := gomonkey.ApplyMethod(reflect.TypeOf(&client.Client{}), "DoRequest", func(_ *client.Client, _ *string, _ *string, _ *string, _ *string, _ *string, _ map[string]interface{}, _ map[string]interface{}, _ *util.RuntimeOptions) (map[string]interface{}, error) {
			NotFoundFlag := true
			noRetryFlag := false
			if NotFoundFlag {
				return responseMock["ReadDescribeHaVipsNotFound"]("")
			} else if noRetryFlag {
				return responseMock["NoRetryError"]("NoRetryError")
			}
			return responseMock["ReadNormal"]("")
		})
		err := resourceAlicloudHavipRead(d, rawClient)
		patcheDorequest.Reset()
		assert.Nil(t, err)
	})

	t.Run("ReadDescribeHaVipsAbnormal", func(t *testing.T) {
		patcheDorequest := gomonkey.ApplyMethod(reflect.TypeOf(&client.Client{}), "DoRequest", func(_ *client.Client, _ *string, _ *string, _ *string, _ *string, _ *string, _ map[string]interface{}, _ map[string]interface{}, _ *util.RuntimeOptions) (map[string]interface{}, error) {
			retryFlag := false
			noRetryFlag := true
			if retryFlag {
				return responseMock["RetryError"]("Throttling")
			} else if noRetryFlag {
				return responseMock["NoRetryError"]("NonRetryableError")
			}
			return responseMock["ReadNormal"]("")
		})
		err := resourceAlicloudHavipRead(d, rawClient)
		patcheDorequest.Reset()
		assert.NotNil(t, err)
	})
}
