// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0

package datafactory

import (
	"fmt"
	"time"

	"github.com/hashicorp/go-azure-sdk/resource-manager/datafactory/2018-06-01/factories"
	"github.com/hashicorp/terraform-provider-azurerm/helpers/tf"
	"github.com/hashicorp/terraform-provider-azurerm/internal/clients"
	"github.com/hashicorp/terraform-provider-azurerm/internal/services/datafactory/parse"
	"github.com/hashicorp/terraform-provider-azurerm/internal/services/datafactory/validate"
	"github.com/hashicorp/terraform-provider-azurerm/internal/tf/pluginsdk"
	"github.com/hashicorp/terraform-provider-azurerm/internal/tf/validation"
	"github.com/hashicorp/terraform-provider-azurerm/internal/timeouts"
	"github.com/hashicorp/terraform-provider-azurerm/utils"
	"github.com/tombuildsstuff/kermit/sdk/datafactory/2018-06-01/datafactory" // nolint: staticcheck
)

func resourceDataFactoryLinkedServicePostgreSQL() *pluginsdk.Resource {
	return &pluginsdk.Resource{
		Create: resourceDataFactoryLinkedServicePostgreSQLCreateUpdate,
		Read:   resourceDataFactoryLinkedServicePostgreSQLRead,
		Update: resourceDataFactoryLinkedServicePostgreSQLCreateUpdate,
		Delete: resourceDataFactoryLinkedServicePostgreSQLDelete,

		Importer: pluginsdk.ImporterValidatingResourceIdThen(func(id string) error {
			_, err := parse.LinkedServiceID(id)
			return err
		}, importDataFactoryLinkedService(datafactory.TypeBasicLinkedServiceTypePostgreSQL)),

		Timeouts: &pluginsdk.ResourceTimeout{
			Create: pluginsdk.DefaultTimeout(30 * time.Minute),
			Read:   pluginsdk.DefaultTimeout(5 * time.Minute),
			Update: pluginsdk.DefaultTimeout(30 * time.Minute),
			Delete: pluginsdk.DefaultTimeout(30 * time.Minute),
		},

		Schema: map[string]*pluginsdk.Schema{
			"name": {
				Type:         pluginsdk.TypeString,
				Required:     true,
				ForceNew:     true,
				ValidateFunc: validate.LinkedServiceDatasetName,
			},

			"data_factory_id": {
				Type:         pluginsdk.TypeString,
				Required:     true,
				ForceNew:     true,
				ValidateFunc: factories.ValidateFactoryID,
			},

			"connection_string": {
				Type:             pluginsdk.TypeString,
				Required:         true,
				DiffSuppressFunc: azureRmDataFactoryLinkedServiceConnectionStringDiff,
				ValidateFunc:     validation.StringIsNotEmpty,
			},

			"description": {
				Type:         pluginsdk.TypeString,
				Optional:     true,
				ValidateFunc: validation.StringIsNotEmpty,
			},

			"integration_runtime_name": {
				Type:         pluginsdk.TypeString,
				Optional:     true,
				ValidateFunc: validation.StringIsNotEmpty,
			},

			"parameters": {
				Type:     pluginsdk.TypeMap,
				Optional: true,
				Elem: &pluginsdk.Schema{
					Type: pluginsdk.TypeString,
				},
			},

			"annotations": {
				Type:     pluginsdk.TypeList,
				Optional: true,
				Elem: &pluginsdk.Schema{
					Type: pluginsdk.TypeString,
				},
			},

			"additional_properties": {
				Type:     pluginsdk.TypeMap,
				Optional: true,
				Elem: &pluginsdk.Schema{
					Type: pluginsdk.TypeString,
				},
			},
		},
	}
}

func resourceDataFactoryLinkedServicePostgreSQLCreateUpdate(d *pluginsdk.ResourceData, meta interface{}) error {
	client := meta.(*clients.Client).DataFactory.LinkedServiceClient
	subscriptionId := meta.(*clients.Client).DataFactory.LinkedServiceClient.SubscriptionID
	ctx, cancel := timeouts.ForCreateUpdate(meta.(*clients.Client).StopContext, d)
	defer cancel()

	dataFactoryId, err := factories.ParseFactoryID(d.Get("data_factory_id").(string))
	if err != nil {
		return err
	}

	id := parse.NewLinkedServiceID(subscriptionId, dataFactoryId.ResourceGroupName, dataFactoryId.FactoryName, d.Get("name").(string))

	if d.IsNewResource() {
		existing, err := client.Get(ctx, id.ResourceGroup, id.FactoryName, id.Name, "")
		if err != nil {
			if !utils.ResponseWasNotFound(existing.Response) {
				return fmt.Errorf("checking for presence of existing Data Factory PostgreSQL %s: %+v", id, err)
			}
		}

		if !utils.ResponseWasNotFound(existing.Response) {
			return tf.ImportAsExistsError("azurerm_data_factory_linked_service_postgresql", id.ID())
		}
	}

	connectionString := d.Get("connection_string").(string)
	secureString := datafactory.SecureString{
		Value: &connectionString,
		Type:  datafactory.TypeSecureString,
	}

	postgresqlProperties := &datafactory.PostgreSQLLinkedServiceTypeProperties{
		ConnectionString: &secureString,
	}

	description := d.Get("description").(string)

	postgresqlLinkedService := &datafactory.PostgreSQLLinkedService{
		Description:                           &description,
		PostgreSQLLinkedServiceTypeProperties: postgresqlProperties,
		Type:                                  datafactory.TypeBasicLinkedServiceTypePostgreSQL,
	}

	if v, ok := d.GetOk("parameters"); ok {
		postgresqlLinkedService.Parameters = expandLinkedServiceParameters(v.(map[string]interface{}))
	}

	if v, ok := d.GetOk("integration_runtime_name"); ok {
		postgresqlLinkedService.ConnectVia = expandDataFactoryLinkedServiceIntegrationRuntime(v.(string))
	}

	if v, ok := d.GetOk("additional_properties"); ok {
		postgresqlLinkedService.AdditionalProperties = v.(map[string]interface{})
	}

	if v, ok := d.GetOk("annotations"); ok {
		annotations := v.([]interface{})
		postgresqlLinkedService.Annotations = &annotations
	}

	linkedService := datafactory.LinkedServiceResource{
		Properties: postgresqlLinkedService,
	}

	if _, err := client.CreateOrUpdate(ctx, id.ResourceGroup, id.FactoryName, id.Name, linkedService, ""); err != nil {
		return fmt.Errorf("creating/updating Data Factory PostgreSQL %s: %+v", id, err)
	}

	d.SetId(id.ID())

	return resourceDataFactoryLinkedServicePostgreSQLRead(d, meta)
}

func resourceDataFactoryLinkedServicePostgreSQLRead(d *pluginsdk.ResourceData, meta interface{}) error {
	client := meta.(*clients.Client).DataFactory.LinkedServiceClient
	ctx, cancel := timeouts.ForRead(meta.(*clients.Client).StopContext, d)
	defer cancel()

	id, err := parse.LinkedServiceID(d.Id())
	if err != nil {
		return err
	}

	dataFactoryId := factories.NewFactoryID(id.SubscriptionId, id.ResourceGroup, id.FactoryName)

	resp, err := client.Get(ctx, id.ResourceGroup, id.FactoryName, id.Name, "")
	if err != nil {
		if utils.ResponseWasNotFound(resp.Response) {
			d.SetId("")
			return nil
		}

		return fmt.Errorf("retrieving Data Factory PostgreSQL %s: %+v", *id, err)
	}

	d.Set("name", resp.Name)
	d.Set("data_factory_id", dataFactoryId.ID())

	postgresql, ok := resp.Properties.AsPostgreSQLLinkedService()
	if !ok {
		return fmt.Errorf("classifying Data Factory Linked Service PostgreSQL %q (Data Factory %q / Resource Group %q): Expected: %q Received: %q", id.Name, id.FactoryName, id.ResourceGroup, datafactory.TypeBasicLinkedServiceTypePostgreSQL, *resp.Type)
	}

	d.Set("additional_properties", postgresql.AdditionalProperties)
	d.Set("description", postgresql.Description)

	annotations := flattenDataFactoryAnnotations(postgresql.Annotations)
	if err := d.Set("annotations", annotations); err != nil {
		return fmt.Errorf("setting `annotations`: %+v", err)
	}

	parameters := flattenLinkedServiceParameters(postgresql.Parameters)
	if err := d.Set("parameters", parameters); err != nil {
		return fmt.Errorf("setting `parameters`: %+v", err)
	}

	if connectVia := postgresql.ConnectVia; connectVia != nil {
		if connectVia.ReferenceName != nil {
			d.Set("integration_runtime_name", connectVia.ReferenceName)
		}
	}

	return nil
}

func resourceDataFactoryLinkedServicePostgreSQLDelete(d *pluginsdk.ResourceData, meta interface{}) error {
	client := meta.(*clients.Client).DataFactory.LinkedServiceClient
	ctx, cancel := timeouts.ForDelete(meta.(*clients.Client).StopContext, d)
	defer cancel()

	id, err := parse.LinkedServiceID(d.Id())
	if err != nil {
		return err
	}

	response, err := client.Delete(ctx, id.ResourceGroup, id.FactoryName, id.Name)
	if err != nil {
		if !utils.ResponseWasNotFound(response) {
			return fmt.Errorf("deleting Data Factory PostgreSQL %s: %+v", *id, err)
		}
	}

	return nil
}
