Alpha (#4)

* chore: initial push to be able to work together

* chore: add missing wait folder

* chore: add missing folders

* chore: cleanup alpha branch

* feat: mssql alpha instance (#2)

* fix: remove unused attribute types and functions from backup models

* fix: update API client references to use sqlserverflexalpha package

* fix: update package references to use sqlserverflexalpha and modify user data source model

* fix: add sqlserverflexalpha user data source to provider

* fix: add sqlserverflexalpha user resource and update related functionality

* chore: add stackit_sqlserverflexalpha_user resource and instance_id variable

* fix: refactor sqlserverflexalpha user resource and enhance schema with status and default_database

---------

Co-authored-by: Andre Harms <andre.harms@stackit.cloud>
Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>

* feat: add sqlserver instance

* chore: fixing tests

* chore: update docs

---------

Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>
Co-authored-by: Andre Harms <andre.harms@stackit.cloud>

stackit/internal/services/sqlserverflexalpha/instance/datasource.go

@@ -0,0 +1,295 @@
+package sqlserverflex
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/conversion"
+	sqlserverflexUtils "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/sqlserverflexalpha/utils"
+
+	sqlserverflex "github.com/stackitcloud/terraform-provider-stackit/pkg/sqlserverflexalpha"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
+	"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/utils"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/validate"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
+)
+
+// Ensure the implementation satisfies the expected interfaces.
+var (
+	_ datasource.DataSource = &instanceDataSource{}
+)
+
+// NewInstanceDataSource is a helper function to simplify the provider implementation.
+func NewInstanceDataSource() datasource.DataSource {
+	return &instanceDataSource{}
+}
+
+// instanceDataSource is the data source implementation.
+type instanceDataSource struct {
+	client       *sqlserverflex.APIClient
+	providerData core.ProviderData
+}
+
+// Metadata returns the data source type name.
+func (r *instanceDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexalpha_instance"
+}
+
+// Configure adds the provider configured client to the data source.
+func (r *instanceDataSource) Configure(ctx context.Context, req datasource.ConfigureRequest, resp *datasource.ConfigureResponse) {
+	var ok bool
+	r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClient := sqlserverflexUtils.ConfigureClient(ctx, &r.providerData, &resp.Diagnostics)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	r.client = apiClient
+	tflog.Info(ctx, "SQLServer Flex instance client configured")
+}
+
+// Schema defines the schema for the data source.
+func (r *instanceDataSource) Schema(_ context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
+	descriptions := map[string]string{
+		"main":            "SQLServer Flex instance data source schema. Must have a `region` specified in the provider configuration.",
+		"id":              "Terraform's internal data source. ID. It is structured as \"`project_id`,`region`,`instance_id`\".",
+		"instance_id":     "ID of the SQLServer Flex instance.",
+		"project_id":      "STACKIT project ID to which the instance is associated.",
+		"name":            "Instance name.",
+		"acl":             "The Access Control List (ACL) for the SQLServer Flex instance.",
+		"backup_schedule": `The backup schedule. Should follow the cron scheduling system format (e.g. "0 0 * * *").`,
+		"options":         "Custom parameters for the SQLServer Flex instance.",
+		"region":          "The resource region. If not defined, the provider region is used.",
+		// TODO
+	}
+
+	resp.Schema = schema.Schema{
+		Description: descriptions["main"],
+		Attributes: map[string]schema.Attribute{
+			"id": schema.StringAttribute{
+				Description: descriptions["id"],
+				Computed:    true,
+			},
+			"instance_id": schema.StringAttribute{
+				Description: descriptions["instance_id"],
+				Required:    true,
+				Validators: []validator.String{
+					validate.UUID(),
+					validate.NoSeparator(),
+				},
+			},
+			"project_id": schema.StringAttribute{
+				Description: descriptions["project_id"],
+				Required:    true,
+				Validators: []validator.String{
+					validate.UUID(),
+					validate.NoSeparator(),
+				},
+			},
+			"name": schema.StringAttribute{
+				Description: descriptions["name"],
+				Computed:    true,
+			},
+			"backup_schedule": schema.StringAttribute{
+				Description: descriptions["backup_schedule"],
+				Computed:    true,
+			},
+			"flavor": schema.SingleNestedAttribute{
+				Computed: true,
+				Attributes: map[string]schema.Attribute{
+					"id": schema.StringAttribute{
+						Computed: true,
+					},
+					"description": schema.StringAttribute{
+						Computed: true,
+					},
+					"cpu": schema.Int64Attribute{
+						Computed: true,
+					},
+					"ram": schema.Int64Attribute{
+						Computed: true,
+					},
+				},
+			},
+			"replicas": schema.Int64Attribute{
+				Computed: true,
+			},
+			"storage": schema.SingleNestedAttribute{
+				Computed: true,
+				Attributes: map[string]schema.Attribute{
+					"class": schema.StringAttribute{
+						Computed: true,
+					},
+					"size": schema.Int64Attribute{
+						Computed: true,
+					},
+				},
+			},
+			"version": schema.StringAttribute{
+				Computed: true,
+			},
+			"status": schema.StringAttribute{
+				Computed: true,
+			},
+			"edition": schema.StringAttribute{
+				Computed: true,
+			},
+			"retention_days": schema.Int64Attribute{
+				Computed: true,
+			},
+			"region": schema.StringAttribute{
+				// the region cannot be found, so it has to be passed
+				Optional:    true,
+				Description: descriptions["region"],
+			},
+			"encryption": schema.SingleNestedAttribute{
+				Computed: true,
+				Attributes: map[string]schema.Attribute{
+					"key_id": schema.StringAttribute{
+						Description: descriptions["key_id"],
+						Computed:    true,
+					},
+					"key_version": schema.StringAttribute{
+						Description: descriptions["key_version"],
+						Computed:    true,
+					},
+					"keyring_id": schema.StringAttribute{
+						Description: descriptions["keyring_id"],
+						Computed:    true,
+					},
+					"service_account": schema.StringAttribute{
+						Description: descriptions["service_account"],
+						Computed:    true,
+					},
+				},
+				Description: descriptions["encryption"],
+			},
+			"network": schema.SingleNestedAttribute{
+				Computed: true,
+				Attributes: map[string]schema.Attribute{
+					"access_scope": schema.StringAttribute{
+						Description: descriptions["access_scope"],
+						Computed:    true,
+					},
+					"instance_address": schema.StringAttribute{
+						Description: descriptions["instance_address"],
+						Computed:    true,
+					},
+					"router_address": schema.StringAttribute{
+						Description: descriptions["router_address"],
+						Computed:    true,
+					},
+					"acl": schema.ListAttribute{
+						Description: descriptions["acl"],
+						ElementType: types.StringType,
+						Computed:    true,
+					},
+				},
+				Description: descriptions["network"],
+			},
+		},
+	}
+}
+
+// Read refreshes the Terraform state with the latest data.
+func (r *instanceDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) { // nolint:gocritic // function signature required by Terraform
+	var model Model
+	diags := req.Config.Get(ctx, &model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := model.ProjectId.ValueString()
+	instanceId := model.InstanceId.ValueString()
+	region := r.providerData.GetRegionWithOverride(model.Region)
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+	ctx = tflog.SetField(ctx, "region", region)
+	instanceResp, err := r.client.GetInstanceRequest(ctx, projectId, region, instanceId).Execute()
+	if err != nil {
+		utils.LogError(
+			ctx,
+			&resp.Diagnostics,
+			err,
+			"Reading instance",
+			fmt.Sprintf("Instance with ID %q does not exist in project %q.", instanceId, projectId),
+			map[int]string{
+				http.StatusForbidden: fmt.Sprintf("Project with ID %q not found or forbidden access", projectId),
+			},
+		)
+		resp.State.RemoveResource(ctx)
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	var flavor = &flavorModel{}
+	if model.Flavor.IsNull() || model.Flavor.IsUnknown() {
+		flavor.Id = types.StringValue(*instanceResp.FlavorId)
+		if flavor.Id.IsNull() || flavor.Id.IsUnknown() || flavor.Id.String() == "" {
+			panic("WTF FlavorId can not be null or empty string")
+		}
+		err = getFlavorModelById(ctx, r.client, &model, flavor)
+		if err != nil {
+			resp.Diagnostics.AddError(err.Error(), err.Error())
+			return
+		}
+		if flavor.CPU.IsNull() || flavor.CPU.IsUnknown() || flavor.CPU.String() == "" {
+			panic("WTF FlavorId can not be null or empty string")
+		}
+	}
+
+	var storage = &storageModel{}
+	if !(model.Storage.IsNull() || model.Storage.IsUnknown()) {
+		diags = model.Storage.As(ctx, storage, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	var encryption = &encryptionModel{}
+	if !(model.Encryption.IsNull() || model.Encryption.IsUnknown()) {
+		diags = model.Encryption.As(ctx, encryption, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	var network = &networkModel{}
+	if !(model.Network.IsNull() || model.Network.IsUnknown()) {
+		diags = model.Network.As(ctx, network, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	err = mapFields(ctx, instanceResp, &model, flavor, storage, encryption, network, region)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading instance", fmt.Sprintf("Processing API payload: %v", err))
+		return
+	}
+	// Set refreshed state
+	diags = resp.State.Set(ctx, model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	tflog.Info(ctx, "SQLServer Flex instance read")
+}

stackit/internal/services/sqlserverflexalpha/instance/functions.go

@@ -0,0 +1,430 @@
+package sqlserverflex
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/hashicorp/terraform-plugin-framework/attr"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
+	sqlserverflex "github.com/stackitcloud/terraform-provider-stackit/pkg/sqlserverflexalpha"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/conversion"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/utils"
+)
+
+type sqlserverflexClient interface {
+	GetFlavorsRequestExecute(ctx context.Context, projectId, region string, page, size *int64, sort sqlserverflex.FlavorSort) (*sqlserverflex.GetFlavorsResponse, error)
+}
+
+func mapFields(ctx context.Context, resp *sqlserverflex.GetInstanceResponse, model *Model, flavor *flavorModel, storage *storageModel, encryption *encryptionModel, network *networkModel, region string) error {
+	if resp == nil {
+		return fmt.Errorf("response input is nil")
+	}
+	if model == nil {
+		return fmt.Errorf("model input is nil")
+	}
+	instance := resp
+
+	var instanceId string
+	if model.InstanceId.ValueString() != "" {
+		instanceId = model.InstanceId.ValueString()
+	} else if instance.Id != nil {
+		instanceId = *instance.Id
+	} else {
+		return fmt.Errorf("instance id not present")
+	}
+
+	var flavorValues map[string]attr.Value
+	if instance.FlavorId == nil {
+		return fmt.Errorf("instance has no flavor id")
+	}
+	if *instance.FlavorId != flavor.Id.ValueString() {
+		return fmt.Errorf("instance has different flavor id %s - %s", *instance.FlavorId, flavor.Id.ValueString())
+	}
+
+	flavorValues = map[string]attr.Value{
+		"id":          flavor.Id,
+		"description": flavor.Description,
+		"cpu":         flavor.CPU,
+		"ram":         flavor.RAM,
+		"node_type":   flavor.NodeType,
+	}
+	flavorObject, diags := types.ObjectValue(flavorTypes, flavorValues)
+	if diags.HasError() {
+		return fmt.Errorf("creating flavor: %w", core.DiagsToError(diags))
+	}
+
+	var storageValues map[string]attr.Value
+	if instance.Storage == nil {
+		storageValues = map[string]attr.Value{
+			"class": storage.Class,
+			"size":  storage.Size,
+		}
+	} else {
+		storageValues = map[string]attr.Value{
+			"class": types.StringValue(*instance.Storage.Class),
+			"size":  types.Int64PointerValue(instance.Storage.Size),
+		}
+	}
+	storageObject, diags := types.ObjectValue(storageTypes, storageValues)
+	if diags.HasError() {
+		return fmt.Errorf("creating storage: %w", core.DiagsToError(diags))
+	}
+
+	var encryptionValues map[string]attr.Value
+	if instance.Encryption == nil {
+		encryptionValues = map[string]attr.Value{
+			"keyring_id":      encryption.KeyRingId,
+			"key_id":          encryption.KeyId,
+			"key_version":     encryption.KeyVersion,
+			"service_account": encryption.ServiceAccount,
+		}
+	} else {
+		encryptionValues = map[string]attr.Value{
+			"keyring_id":      types.StringValue(*instance.Encryption.KekKeyRingId),
+			"key_id":          types.StringValue(*instance.Encryption.KekKeyId),
+			"key_version":     types.StringValue(*instance.Encryption.KekKeyVersion),
+			"service_account": types.StringValue(*instance.Encryption.ServiceAccount),
+		}
+	}
+	encryptionObject, diags := types.ObjectValue(encryptionTypes, encryptionValues)
+	if diags.HasError() {
+		return fmt.Errorf("creating encryption: %w", core.DiagsToError(diags))
+	}
+
+	var networkValues map[string]attr.Value
+	if instance.Network == nil {
+		networkValues = map[string]attr.Value{
+			"acl":              network.ACL,
+			"access_scope":     network.AccessScope,
+			"instance_address": network.InstanceAddress,
+			"router_address":   network.RouterAddress,
+		}
+	} else {
+		aclList, diags := types.ListValueFrom(ctx, types.StringType, *instance.Network.Acl)
+		if diags.HasError() {
+			return fmt.Errorf("creating network (acl list): %w", core.DiagsToError(diags))
+		}
+
+		var routerAddress string
+		if instance.Network.RouterAddress != nil {
+			routerAddress = *instance.Network.RouterAddress
+			diags.AddWarning("field missing while mapping fields", "router_address was empty in API response")
+		}
+		if instance.Network.InstanceAddress == nil {
+			return fmt.Errorf("creating network: no instance address returned")
+		}
+		networkValues = map[string]attr.Value{
+			"acl":              aclList,
+			"access_scope":     types.StringValue(string(*instance.Network.AccessScope)),
+			"instance_address": types.StringValue(*instance.Network.InstanceAddress),
+			"router_address":   types.StringValue(routerAddress),
+		}
+	}
+	networkObject, diags := types.ObjectValue(networkTypes, networkValues)
+	if diags.HasError() {
+		return fmt.Errorf("creating network: %w", core.DiagsToError(diags))
+	}
+
+	simplifiedModelBackupSchedule := utils.SimplifyBackupSchedule(model.BackupSchedule.ValueString())
+	// If the value returned by the API is different from the one in the model after simplification,
+	// we update the model so that it causes an error in Terraform
+	if simplifiedModelBackupSchedule != types.StringPointerValue(instance.BackupSchedule).ValueString() {
+		model.BackupSchedule = types.StringPointerValue(instance.BackupSchedule)
+	}
+
+	if instance.Replicas == nil {
+		return fmt.Errorf("instance has no replicas set")
+	}
+
+	if instance.RetentionDays == nil {
+		return fmt.Errorf("instance has no retention days set")
+	}
+
+	if instance.Version == nil {
+		return fmt.Errorf("instance has no version set")
+	}
+
+	if instance.Edition == nil {
+		return fmt.Errorf("instance has no edition set")
+	}
+
+	if instance.Status == nil {
+		return fmt.Errorf("instance has no status set")
+	}
+
+	if instance.IsDeletable == nil {
+		return fmt.Errorf("instance has no IsDeletable set")
+	}
+
+	model.Id = utils.BuildInternalTerraformId(model.ProjectId.ValueString(), region, instanceId)
+	model.InstanceId = types.StringValue(instanceId)
+	model.Name = types.StringPointerValue(instance.Name)
+	model.Flavor = flavorObject
+	model.Replicas = types.Int64Value(int64(*instance.Replicas))
+	model.Storage = storageObject
+	model.Version = types.StringValue(string(*instance.Version))
+	model.Edition = types.StringValue(string(*instance.Edition))
+	model.Region = types.StringValue(region)
+	model.Encryption = encryptionObject
+	model.Network = networkObject
+	model.RetentionDays = types.Int64Value(*instance.RetentionDays)
+	model.Status = types.StringValue(string(*instance.Status))
+	model.IsDeletable = types.BoolValue(*instance.IsDeletable)
+	return nil
+}
+
+func toCreatePayload(model *Model, storage *storageModel, encryption *encryptionModel, network *networkModel) (*sqlserverflex.CreateInstanceRequestPayload, error) {
+	if model == nil {
+		return nil, fmt.Errorf("nil model")
+	}
+
+	if model.Flavor.IsNull() || model.Flavor.IsUnknown() {
+		return nil, fmt.Errorf("nil flavor")
+	}
+
+	storagePayload := &sqlserverflex.CreateInstanceRequestPayloadGetStorageArgType{}
+	if storage != nil {
+		storagePayload.Class = conversion.StringValueToPointer(storage.Class)
+		storagePayload.Size = conversion.Int64ValueToPointer(storage.Size)
+	}
+
+	encryptionPayload := &sqlserverflex.CreateInstanceRequestPayloadGetEncryptionArgType{}
+	if encryption != nil {
+		encryptionPayload.KekKeyId = conversion.StringValueToPointer(encryption.KeyId)
+		encryptionPayload.KekKeyVersion = conversion.StringValueToPointer(encryption.KeyVersion)
+		encryptionPayload.KekKeyRingId = conversion.StringValueToPointer(encryption.KeyRingId)
+		encryptionPayload.ServiceAccount = conversion.StringValueToPointer(encryption.ServiceAccount)
+	}
+
+	networkPayload := &sqlserverflex.CreateInstanceRequestPayloadGetNetworkArgType{}
+	if network != nil {
+		networkPayload.AccessScope = sqlserverflex.CreateInstanceRequestPayloadNetworkGetAccessScopeAttributeType(conversion.StringValueToPointer(network.AccessScope))
+	}
+
+	flavorId := ""
+	if !(model.Flavor.IsNull() || model.Flavor.IsUnknown()) {
+		modelValues := model.Flavor.Attributes()
+		if _, ok := modelValues["id"]; !ok {
+			return nil, fmt.Errorf("flavor has not yet been created")
+		}
+		flavorId = strings.Trim(modelValues["id"].String(), "\"")
+	}
+
+	var aclElements []string
+	if network != nil && !(network.ACL.IsNull() || network.ACL.IsUnknown()) {
+		aclElements = make([]string, 0, len(network.ACL.Elements()))
+		diags := network.ACL.ElementsAs(nil, &aclElements, false)
+		if diags.HasError() {
+			return nil, fmt.Errorf("creating network: %w", core.DiagsToError(diags))
+		}
+	}
+
+	return &sqlserverflex.CreateInstanceRequestPayload{
+		Acl:            &aclElements,
+		BackupSchedule: conversion.StringValueToPointer(model.BackupSchedule),
+		FlavorId:       &flavorId,
+		Name:           conversion.StringValueToPointer(model.Name),
+		Storage:        storagePayload,
+		Version:        sqlserverflex.CreateInstanceRequestPayloadGetVersionAttributeType(conversion.StringValueToPointer(model.Version)),
+		Encryption:     encryptionPayload,
+		RetentionDays:  conversion.Int64ValueToPointer(model.RetentionDays),
+		Network:        networkPayload,
+	}, nil
+}
+
+func toUpdatePayload(model *Model, storage *storageModel, network *networkModel) (*sqlserverflex.UpdateInstancePartiallyRequestPayload, error) {
+	if model == nil {
+		return nil, fmt.Errorf("nil model")
+	}
+	if model.Flavor.IsNull() || model.Flavor.IsUnknown() {
+		return nil, fmt.Errorf("nil flavor")
+	}
+	var flavorMdl flavorModel
+	diag := model.Flavor.As(context.Background(), &flavorMdl, basetypes.ObjectAsOptions{
+		UnhandledNullAsEmpty:    true,
+		UnhandledUnknownAsEmpty: false,
+	})
+	if diag.HasError() {
+		return nil, fmt.Errorf("flavor conversion error: %v", diag.Errors())
+	}
+
+	storagePayload := &sqlserverflex.UpdateInstanceRequestPayloadGetStorageArgType{}
+	if storage != nil {
+		storagePayload.Size = conversion.Int64ValueToPointer(storage.Size)
+	}
+
+	var aclElements []string
+	if network != nil && !(network.ACL.IsNull() || network.ACL.IsUnknown()) {
+		aclElements = make([]string, 0, len(network.ACL.Elements()))
+		diags := network.ACL.ElementsAs(nil, &aclElements, false)
+		if diags.HasError() {
+			return nil, fmt.Errorf("creating network: %w", core.DiagsToError(diags))
+		}
+	}
+
+	// TODO - implement network.ACL as soon as it becomes available
+	replCount := int32(model.Replicas.ValueInt64())
+	flavorId := flavorMdl.Id.ValueString()
+	return &sqlserverflex.UpdateInstancePartiallyRequestPayload{
+		Acl:            &aclElements,
+		BackupSchedule: conversion.StringValueToPointer(model.BackupSchedule),
+		FlavorId:       &flavorId,
+		Name:           conversion.StringValueToPointer(model.Name),
+		Replicas:       sqlserverflex.UpdateInstancePartiallyRequestPayloadGetReplicasAttributeType(&replCount),
+		RetentionDays:  conversion.Int64ValueToPointer(model.RetentionDays),
+		Storage:        storagePayload,
+		Version:        sqlserverflex.UpdateInstancePartiallyRequestPayloadGetVersionAttributeType(conversion.StringValueToPointer(model.Version)),
+	}, nil
+}
+
+func getAllFlavors(ctx context.Context, client sqlserverflexClient, projectId, region string) ([]sqlserverflex.ListFlavors, error) {
+	if projectId == "" || region == "" {
+		return nil, fmt.Errorf("listing sqlserverflex flavors: projectId and region are required")
+	}
+	var flavorList []sqlserverflex.ListFlavors
+
+	page := int64(1)
+	size := int64(10)
+	for {
+		res, err := client.GetFlavorsRequestExecute(ctx, projectId, region, &page, &size, sqlserverflex.FLAVORSORT_INDEX_ASC)
+		if err != nil {
+			return nil, fmt.Errorf("listing sqlserverflex flavors: %w", err)
+		}
+		if res.Flavors == nil {
+			return nil, fmt.Errorf("finding flavors for project %s", projectId)
+		}
+		pagination := res.GetPagination()
+		flavorList = append(flavorList, *res.Flavors...)
+
+		if *pagination.TotalRows == int64(len(flavorList)) {
+			break
+		}
+		page++
+	}
+	return flavorList, nil
+}
+
+func loadFlavorId(ctx context.Context, client sqlserverflexClient, model *Model, flavor *flavorModel, storage *storageModel) error {
+	if model == nil {
+		return fmt.Errorf("nil model")
+	}
+	if flavor == nil {
+		return fmt.Errorf("nil flavor")
+	}
+	cpu := conversion.Int64ValueToPointer(flavor.CPU)
+	if cpu == nil {
+		return fmt.Errorf("nil CPU")
+	}
+	ram := conversion.Int64ValueToPointer(flavor.RAM)
+	if ram == nil {
+		return fmt.Errorf("nil RAM")
+	}
+	nodeType := conversion.StringValueToPointer(flavor.NodeType)
+	if nodeType == nil {
+		return fmt.Errorf("nil NodeType")
+	}
+	storageClass := conversion.StringValueToPointer(storage.Class)
+	if storageClass == nil {
+		return fmt.Errorf("nil StorageClass")
+	}
+	storageSize := conversion.Int64ValueToPointer(storage.Size)
+	if storageSize == nil {
+		return fmt.Errorf("nil StorageSize")
+	}
+
+	projectId := model.ProjectId.ValueString()
+	region := model.Region.ValueString()
+
+	flavorList, err := getAllFlavors(ctx, client, projectId, region)
+	if err != nil {
+		return err
+	}
+
+	avl := ""
+	foundFlavorCount := 0
+	for _, f := range flavorList {
+		if f.Id == nil || f.Cpu == nil || f.Memory == nil {
+			continue
+		}
+		if strings.ToLower(*f.NodeType) != strings.ToLower(*nodeType) {
+			continue
+		}
+		if *f.Cpu == *cpu && *f.Memory == *ram {
+			var useSc *sqlserverflex.FlavorStorageClassesStorageClass
+			for _, sc := range *f.StorageClasses {
+				if *sc.Class != *storageClass {
+					continue
+				}
+				if *storageSize < *f.MinGB || *storageSize > *f.MaxGB {
+					return fmt.Errorf("storage size %d out of bounds (min: %d - max: %d)", *storageSize, *f.MinGB, *f.MaxGB)
+				}
+				useSc = &sc
+			}
+			if useSc == nil {
+				return fmt.Errorf("no storage class found for %s", *storageClass)
+			}
+
+			flavor.Id = types.StringValue(*f.Id)
+			flavor.Description = types.StringValue(*f.Description)
+			foundFlavorCount++
+		}
+		for _, cls := range *f.StorageClasses {
+			avl = fmt.Sprintf("%s\n- %d CPU, %d GB RAM, storage %s (min: %d - max: %d)", avl, *f.Cpu, *f.Memory, *cls.Class, *f.MinGB, *f.MaxGB)
+		}
+	}
+	if foundFlavorCount > 1 {
+		return fmt.Errorf("multiple flavors found: %d flavors", foundFlavorCount)
+	}
+	if flavor.Id.ValueString() == "" {
+		return fmt.Errorf("couldn't find flavor, available specs are:%s", avl)
+	}
+
+	return nil
+}
+
+func getFlavorModelById(ctx context.Context, client sqlserverflexClient, model *Model, flavor *flavorModel) error {
+	if model == nil {
+		return fmt.Errorf("nil model")
+	}
+	if flavor == nil {
+		return fmt.Errorf("nil flavor")
+	}
+	id := conversion.StringValueToPointer(flavor.Id)
+	if id == nil {
+		return fmt.Errorf("nil flavor ID")
+	}
+
+	flavor.Id = types.StringValue("")
+
+	projectId := model.ProjectId.ValueString()
+	region := model.Region.ValueString()
+
+	flavorList, err := getAllFlavors(ctx, client, projectId, region)
+	if err != nil {
+		return err
+	}
+
+	avl := ""
+	for _, f := range flavorList {
+		if f.Id == nil || f.Cpu == nil || f.Memory == nil {
+			continue
+		}
+		if *f.Id == *id {
+			flavor.Id = types.StringValue(*f.Id)
+			flavor.Description = types.StringValue(*f.Description)
+			flavor.CPU = types.Int64Value(*f.Cpu)
+			flavor.RAM = types.Int64Value(*f.Memory)
+			flavor.NodeType = types.StringValue(*f.NodeType)
+			break
+		}
+		avl = fmt.Sprintf("%s\n- %d CPU, %d GB RAM", avl, *f.Cpu, *f.Memory)
+	}
+	if flavor.Id.ValueString() == "" {
+		return fmt.Errorf("couldn't find flavor, available specs are: %s", avl)
+	}
+
+	return nil
+}

stackit/internal/services/sqlserverflexalpha/instance/resource.go

@@ -0,0 +1,916 @@
+package sqlserverflex
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/hashicorp/terraform-plugin-framework-validators/int64validator"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/boolplanmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/listplanmodifier"
+	sqlserverflexUtils "github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/sqlserverflexalpha/utils"
+
+	"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
+	"github.com/hashicorp/terraform-plugin-framework/attr"
+	"github.com/hashicorp/terraform-plugin-framework/path"
+	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
+	"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
+	"github.com/hashicorp/terraform-plugin-log/tflog"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/conversion"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/utils"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/validate"
+
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/int64planmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/objectplanmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/stackitcloud/stackit-sdk-go/core/oapierror"
+	sqlserverflex "github.com/stackitcloud/terraform-provider-stackit/pkg/sqlserverflexalpha"
+	"github.com/stackitcloud/terraform-provider-stackit/pkg/sqlserverflexalpha/wait"
+)
+
+// Ensure the implementation satisfies the expected interfaces.
+var (
+	_ resource.Resource                = &instanceResource{}
+	_ resource.ResourceWithConfigure   = &instanceResource{}
+	_ resource.ResourceWithImportState = &instanceResource{}
+	_ resource.ResourceWithModifyPlan  = &instanceResource{}
+)
+
+var validNodeTypes []string = []string{
+	"Single",
+	"Replica",
+}
+
+type Model struct {
+	Id             types.String `tfsdk:"id"` // needed by TF
+	InstanceId     types.String `tfsdk:"instance_id"`
+	ProjectId      types.String `tfsdk:"project_id"`
+	Name           types.String `tfsdk:"name"`
+	BackupSchedule types.String `tfsdk:"backup_schedule"`
+	Flavor         types.Object `tfsdk:"flavor"`
+	Encryption     types.Object `tfsdk:"encryption"`
+	IsDeletable    types.Bool   `tfsdk:"is_deletable"`
+	Storage        types.Object `tfsdk:"storage"`
+	Status         types.String `tfsdk:"status"`
+	Version        types.String `tfsdk:"version"`
+	Replicas       types.Int64  `tfsdk:"replicas"`
+	Region         types.String `tfsdk:"region"`
+	Network        types.Object `tfsdk:"network"`
+	Edition        types.String `tfsdk:"edition"`
+	RetentionDays  types.Int64  `tfsdk:"retention_days"`
+}
+
+type encryptionModel struct {
+	KeyRingId      types.String `tfsdk:"keyring_id"`
+	KeyId          types.String `tfsdk:"key_id"`
+	KeyVersion     types.String `tfsdk:"key_version"`
+	ServiceAccount types.String `tfsdk:"service_account"`
+}
+
+var encryptionTypes = map[string]attr.Type{
+	"keyring_id":      basetypes.StringType{},
+	"key_id":          basetypes.StringType{},
+	"key_version":     basetypes.StringType{},
+	"service_account": basetypes.StringType{},
+}
+
+type networkModel struct {
+	ACL             types.List   `tfsdk:"acl"`
+	AccessScope     types.String `tfsdk:"access_scope"`
+	InstanceAddress types.String `tfsdk:"instance_address"`
+	RouterAddress   types.String `tfsdk:"router_address"`
+}
+
+var networkTypes = map[string]attr.Type{
+	"acl":              basetypes.ListType{ElemType: types.StringType},
+	"access_scope":     basetypes.StringType{},
+	"instance_address": basetypes.StringType{},
+	"router_address":   basetypes.StringType{},
+}
+
+// Struct corresponding to Model.FlavorId
+type flavorModel struct {
+	Id          types.String `tfsdk:"id"`
+	Description types.String `tfsdk:"description"`
+	CPU         types.Int64  `tfsdk:"cpu"`
+	RAM         types.Int64  `tfsdk:"ram"`
+	NodeType    types.String `tfsdk:"node_type"`
+}
+
+// Types corresponding to flavorModel
+var flavorTypes = map[string]attr.Type{
+	"id":          basetypes.StringType{},
+	"description": basetypes.StringType{},
+	"cpu":         basetypes.Int64Type{},
+	"ram":         basetypes.Int64Type{},
+	"node_type":   basetypes.StringType{},
+}
+
+// Struct corresponding to Model.Storage
+type storageModel struct {
+	Class types.String `tfsdk:"class"`
+	Size  types.Int64  `tfsdk:"size"`
+}
+
+// Types corresponding to storageModel
+var storageTypes = map[string]attr.Type{
+	"class": basetypes.StringType{},
+	"size":  basetypes.Int64Type{},
+}
+
+// NewInstanceResource is a helper function to simplify the provider implementation.
+func NewInstanceResource() resource.Resource {
+	return &instanceResource{}
+}
+
+// instanceResource is the resource implementation.
+type instanceResource struct {
+	client       *sqlserverflex.APIClient
+	providerData core.ProviderData
+}
+
+// Metadata returns the resource type name.
+func (r *instanceResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_sqlserverflexalpha_instance"
+}
+
+// Configure adds the provider configured client to the resource.
+func (r *instanceResource) Configure(ctx context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
+	var ok bool
+	r.providerData, ok = conversion.ParseProviderData(ctx, req.ProviderData, &resp.Diagnostics)
+	if !ok {
+		return
+	}
+
+	apiClient := sqlserverflexUtils.ConfigureClient(ctx, &r.providerData, &resp.Diagnostics)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	r.client = apiClient
+	tflog.Info(ctx, "SQLServer Flex instance client configured")
+}
+
+// ModifyPlan implements resource.ResourceWithModifyPlan.
+// Use the modifier to set the effective region in the current plan.
+func (r *instanceResource) ModifyPlan(ctx context.Context, req resource.ModifyPlanRequest, resp *resource.ModifyPlanResponse) { // nolint:gocritic // function signature required by Terraform
+	var configModel Model
+	// skip initial empty configuration to avoid follow-up errors
+	if req.Config.Raw.IsNull() {
+		return
+	}
+	resp.Diagnostics.Append(req.Config.Get(ctx, &configModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	var planModel Model
+	resp.Diagnostics.Append(req.Plan.Get(ctx, &planModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	utils.AdaptRegion(ctx, configModel.Region, &planModel.Region, r.providerData.GetRegion(), resp)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	resp.Diagnostics.Append(resp.Plan.Set(ctx, planModel)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+}
+
+// Schema defines the schema for the resource.
+func (r *instanceResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
+	descriptions := map[string]string{
+		"main":             "SQLServer Flex ALPHA instance resource schema. Must have a `region` specified in the provider configuration.",
+		"id":               "Terraform's internal resource ID. It is structured as \"`project_id`,`region`,`instance_id`\".",
+		"instance_id":      "ID of the SQLServer Flex instance.",
+		"project_id":       "STACKIT project ID to which the instance is associated.",
+		"name":             "Instance name.",
+		"access_scope":     "The access scope of the instance. (e.g. SNA)",
+		"acl":              "The Access Control List (ACL) for the SQLServer Flex instance.",
+		"backup_schedule":  `The backup schedule. Should follow the cron scheduling system format (e.g. "0 0 * * *")`,
+		"region":           "The resource region. If not defined, the provider region is used.",
+		"encryption":       "The encryption block.",
+		"network":          "The network block.",
+		"keyring_id":       "STACKIT KMS - KeyRing ID of the encryption key to use.",
+		"key_id":           "STACKIT KMS - Key ID of the encryption key to use.",
+		"key_version":      "STACKIT KMS - Key version to use in the encryption key.",
+		"service:account":  "STACKIT KMS - service account to use in the encryption key.",
+		"instance_address": "The returned instance IP address of the SQLServer Flex instance.",
+		"router_address":   "The returned router IP address of the SQLServer Flex instance.",
+	}
+
+	resp.Schema = schema.Schema{
+		Description: descriptions["main"],
+		Attributes: map[string]schema.Attribute{
+			"id": schema.StringAttribute{
+				Description: descriptions["id"],
+				Computed:    true,
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.UseStateForUnknown(),
+				},
+			},
+			"instance_id": schema.StringAttribute{
+				Description: descriptions["instance_id"],
+				Computed:    true,
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.UseStateForUnknown(),
+				},
+				Validators: []validator.String{
+					validate.UUID(),
+					validate.NoSeparator(),
+				},
+			},
+			"project_id": schema.StringAttribute{
+				Description: descriptions["project_id"],
+				Required:    true,
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.RequiresReplace(),
+				},
+				Validators: []validator.String{
+					validate.UUID(),
+					validate.NoSeparator(),
+				},
+			},
+			"name": schema.StringAttribute{
+				Description: descriptions["name"],
+				Required:    true,
+				Validators: []validator.String{
+					stringvalidator.LengthAtLeast(1),
+					stringvalidator.RegexMatches(
+						regexp.MustCompile("^[a-z]([-a-z0-9]*[a-z0-9])?$"),
+						"must start with a letter, must have lower case letters, numbers or hyphens, and no hyphen at the end",
+					),
+				},
+			},
+			"backup_schedule": schema.StringAttribute{
+				Description: descriptions["backup_schedule"],
+				Optional:    true,
+				Computed:    true,
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.UseStateForUnknown(),
+				},
+			},
+			"is_deletable": schema.BoolAttribute{
+				Description: descriptions["is_deletable"],
+				Optional:    true,
+				Computed:    true,
+				PlanModifiers: []planmodifier.Bool{
+					boolplanmodifier.UseStateForUnknown(),
+				},
+			},
+			// TODO - make it either flavor_id or ram, cpu and node_type
+			"flavor": schema.SingleNestedAttribute{
+				PlanModifiers: []planmodifier.Object{
+					objectplanmodifier.RequiresReplace(),
+					objectplanmodifier.UseStateForUnknown(),
+				},
+				Required: true,
+				Attributes: map[string]schema.Attribute{
+					"id": schema.StringAttribute{
+						Optional: true,
+						Computed: true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.RequiresReplace(),
+							stringplanmodifier.UseStateForUnknown(),
+						},
+					},
+					"description": schema.StringAttribute{
+						Computed: true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.UseStateForUnknown(),
+						},
+					},
+					"node_type": schema.StringAttribute{
+						Required: true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.RequiresReplace(),
+							stringplanmodifier.UseStateForUnknown(),
+						},
+						Validators: []validator.String{
+							stringvalidator.ConflictsWith([]path.Expression{
+								path.MatchRelative().AtParent().AtName("id"),
+							}...),
+							stringvalidator.OneOfCaseInsensitive(validNodeTypes...),
+							stringvalidator.AlsoRequires([]path.Expression{
+								path.MatchRelative().AtParent().AtName("cpu"),
+								path.MatchRelative().AtParent().AtName("ram"),
+							}...),
+						},
+					},
+					"cpu": schema.Int64Attribute{
+						Required: true,
+						PlanModifiers: []planmodifier.Int64{
+							int64planmodifier.RequiresReplace(),
+							int64planmodifier.UseStateForUnknown(),
+						},
+						Validators: []validator.Int64{
+							int64validator.ConflictsWith([]path.Expression{
+								path.MatchRelative().AtParent().AtName("id"),
+							}...),
+							int64validator.AlsoRequires([]path.Expression{
+								path.MatchRelative().AtParent().AtName("node_type"),
+								path.MatchRelative().AtParent().AtName("ram"),
+							}...),
+						},
+					},
+					"ram": schema.Int64Attribute{
+						Required: true,
+						PlanModifiers: []planmodifier.Int64{
+							int64planmodifier.RequiresReplace(),
+							int64planmodifier.UseStateForUnknown(),
+						},
+						Validators: []validator.Int64{
+							int64validator.ConflictsWith([]path.Expression{
+								path.MatchRelative().AtParent().AtName("id"),
+							}...),
+							int64validator.AlsoRequires([]path.Expression{
+								path.MatchRelative().AtParent().AtName("node_type"),
+								path.MatchRelative().AtParent().AtName("cpu"),
+							}...),
+						},
+					},
+				},
+			},
+			"replicas": schema.Int64Attribute{
+				Computed: true,
+				PlanModifiers: []planmodifier.Int64{
+					int64planmodifier.UseStateForUnknown(),
+				},
+			},
+			"storage": schema.SingleNestedAttribute{
+				Optional: true,
+				Computed: true,
+				PlanModifiers: []planmodifier.Object{
+					objectplanmodifier.UseStateForUnknown(),
+				},
+				Attributes: map[string]schema.Attribute{
+					"class": schema.StringAttribute{
+						Optional: true,
+						Computed: true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.RequiresReplace(),
+							stringplanmodifier.UseStateForUnknown(),
+						},
+					},
+					"size": schema.Int64Attribute{
+						Optional: true,
+						Computed: true,
+						PlanModifiers: []planmodifier.Int64{
+							int64planmodifier.UseStateForUnknown(),
+						},
+					},
+				},
+			},
+			"version": schema.StringAttribute{
+				Optional: true,
+				Computed: true,
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.RequiresReplace(),
+					stringplanmodifier.UseStateForUnknown(),
+				},
+			},
+			"edition": schema.StringAttribute{
+				Computed: true,
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.RequiresReplace(),
+					stringplanmodifier.UseStateForUnknown(),
+				},
+			},
+			"retention_days": schema.Int64Attribute{
+				Optional: true,
+				Computed: true,
+				PlanModifiers: []planmodifier.Int64{
+					int64planmodifier.UseStateForUnknown(),
+				},
+			},
+			"region": schema.StringAttribute{
+				Optional: true,
+				// must be computed to allow for storing the override value from the provider
+				Computed:    true,
+				Description: descriptions["region"],
+				PlanModifiers: []planmodifier.String{
+					stringplanmodifier.RequiresReplace(),
+				},
+			},
+			"status": schema.StringAttribute{
+				Optional: true,
+				// must be computed to allow for storing the override value from the provider
+				Computed:    true,
+				Description: descriptions["status"],
+			},
+			"encryption": schema.SingleNestedAttribute{
+				Required: true,
+				PlanModifiers: []planmodifier.Object{
+					objectplanmodifier.RequiresReplace(),
+					objectplanmodifier.UseStateForUnknown(),
+				},
+				Attributes: map[string]schema.Attribute{
+					"key_id": schema.StringAttribute{
+						Description: descriptions["key_id"],
+						Required:    true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.RequiresReplace(),
+						},
+						Validators: []validator.String{
+							validate.NoSeparator(),
+						},
+					},
+					"key_version": schema.StringAttribute{
+						Description: descriptions["key_version"],
+						Required:    true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.RequiresReplace(),
+						},
+						Validators: []validator.String{
+							validate.NoSeparator(),
+						},
+					},
+					"keyring_id": schema.StringAttribute{
+						Description: descriptions["key_ring_id"],
+						Required:    true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.RequiresReplace(),
+						},
+						Validators: []validator.String{
+							validate.NoSeparator(),
+						},
+					},
+					"service_account": schema.StringAttribute{
+						Description: descriptions["service_account"],
+						Required:    true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.RequiresReplace(),
+						},
+						Validators: []validator.String{
+							validate.NoSeparator(),
+						},
+					},
+				},
+				Description: descriptions["encryption"],
+			},
+			"network": schema.SingleNestedAttribute{
+				Required: true,
+				Attributes: map[string]schema.Attribute{
+					"access_scope": schema.StringAttribute{
+						Description: descriptions["access_scope"],
+						Required:    true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.RequiresReplace(),
+							stringplanmodifier.UseStateForUnknown(),
+						},
+						Validators: []validator.String{
+							validate.NoSeparator(),
+						},
+					},
+					"acl": schema.ListAttribute{
+						Description: descriptions["acl"],
+						ElementType: types.StringType,
+						Required:    true,
+						PlanModifiers: []planmodifier.List{
+							listplanmodifier.UseStateForUnknown(),
+						},
+					},
+					"instance_address": schema.StringAttribute{
+						Description: descriptions["instance_address"],
+						Computed:    true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.UseStateForUnknown(),
+						},
+					},
+					"router_address": schema.StringAttribute{
+						Description: descriptions["router_address"],
+						Computed:    true,
+						PlanModifiers: []planmodifier.String{
+							stringplanmodifier.UseStateForUnknown(),
+						},
+					},
+				},
+				Description: descriptions["network"],
+			},
+		},
+	}
+}
+
+// Create creates the resource and sets the initial Terraform state.
+func (r *instanceResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) { // nolint:gocritic // function signature required by Terraform
+	// Retrieve values from plan
+	var model Model
+	diags := req.Plan.Get(ctx, &model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := model.ProjectId.ValueString()
+	region := model.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	var storage = &storageModel{}
+	if !(model.Storage.IsNull() || model.Storage.IsUnknown()) {
+		diags = model.Storage.As(ctx, storage, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	var encryption = &encryptionModel{}
+	if !(model.Encryption.IsNull() || model.Encryption.IsUnknown()) {
+		diags = model.Encryption.As(ctx, encryption, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	var network = &networkModel{}
+	if !(model.Network.IsNull() || model.Network.IsUnknown()) {
+		diags = model.Network.As(ctx, network, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	flavor := &flavorModel{}
+	if !(model.Flavor.IsNull() || model.Flavor.IsUnknown()) {
+		diags = model.Flavor.As(ctx, flavor, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	if flavor.Id.IsNull() || flavor.Id.IsUnknown() {
+		err := loadFlavorId(ctx, r.client, &model, flavor, storage)
+		if err != nil {
+			resp.Diagnostics.AddError(err.Error(), err.Error())
+			return
+		}
+		flavorValues := map[string]attr.Value{
+			"id":          flavor.Id,
+			"description": flavor.Description,
+			"cpu":         flavor.CPU,
+			"ram":         flavor.RAM,
+			"node_type":   flavor.NodeType,
+		}
+		var flavorObject basetypes.ObjectValue
+		flavorObject, diags = types.ObjectValue(flavorTypes, flavorValues)
+		resp.Diagnostics.Append(diags...)
+		if diags.HasError() {
+			return
+		}
+		model.Flavor = flavorObject
+	}
+
+	// Generate API request body from model
+	payload, err := toCreatePayload(&model, storage, encryption, network)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating instance", fmt.Sprintf("Creating API payload: %v", err))
+		return
+	}
+	// Create new instance
+	createResp, err := r.client.CreateInstanceRequest(ctx, projectId, region).CreateInstanceRequestPayload(*payload).Execute()
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating instance", fmt.Sprintf("Calling API: %v", err))
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	instanceId := *createResp.Id
+	utils.SetAndLogStateFields(ctx, &resp.Diagnostics, &resp.State, map[string]any{
+		"instance_id": instanceId,
+	})
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// The creation waiter sometimes returns an error from the API: "instance with id xxx has unexpected status Failure"
+	// which can be avoided by sleeping before wait
+	waitResp, err := wait.CreateInstanceWaitHandler(ctx, r.client, projectId, instanceId, region).SetSleepBeforeWait(30 * time.Second).WaitWithContext(ctx)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating instance", fmt.Sprintf("Instance creation waiting: %v", err))
+		return
+	}
+
+	if waitResp.FlavorId == nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating instance", "Instance creation waiting: returned flavor id is nil")
+		return
+	}
+
+	if *waitResp.FlavorId != flavor.Id.ValueString() {
+		core.LogAndAddError(
+			ctx,
+			&resp.Diagnostics,
+			"Error creating instance",
+			fmt.Sprintf("Instance creation waiting: returned flavor id differs (expected: %s, current: %s)", flavor.Id.ValueString(), *waitResp.FlavorId),
+		)
+		return
+	}
+
+	if flavor.CPU.IsNull() || flavor.CPU.IsUnknown() {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating instance", "Instance creation waiting: flavor cpu is null or unknown")
+	}
+	if flavor.RAM.IsNull() || flavor.RAM.IsUnknown() {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating instance", "Instance creation waiting: flavor ram is null or unknown")
+	}
+	// flavorData := getFlavorModelById(ctx, r.client, &model, flavor)
+
+	// Map response body to schema
+	err = mapFields(ctx, waitResp, &model, flavor, storage, encryption, network, region)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error creating instance", fmt.Sprintf("Processing API payload: %v", err))
+		return
+	}
+	// Set state to fully populated data
+	diags = resp.State.Set(ctx, model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	// After the instance creation, database might not be ready to accept connections immediately.
+	// That is why we add a sleep
+	// TODO - can get removed?
+	time.Sleep(120 * time.Second)
+
+	tflog.Info(ctx, "SQLServer Flex instance created")
+}
+
+// Read refreshes the Terraform state with the latest data.
+func (r *instanceResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) { // nolint:gocritic // function signature required by Terraform
+	var model Model
+	diags := req.State.Get(ctx, &model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := model.ProjectId.ValueString()
+	instanceId := model.InstanceId.ValueString()
+	region := r.providerData.GetRegionWithOverride(model.Region)
+
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	var flavor = &flavorModel{}
+	if !(model.Flavor.IsNull() || model.Flavor.IsUnknown()) {
+		diags = model.Flavor.As(ctx, flavor, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+
+		err := getFlavorModelById(ctx, r.client, &model, flavor)
+		if err != nil {
+			resp.Diagnostics.AddError(err.Error(), err.Error())
+			return
+		}
+
+		diags = model.Flavor.As(ctx, flavor, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	var storage = &storageModel{}
+	if !(model.Storage.IsNull() || model.Storage.IsUnknown()) {
+		diags = model.Storage.As(ctx, storage, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	var encryption = &encryptionModel{}
+	if !(model.Encryption.IsNull() || model.Encryption.IsUnknown()) {
+		diags = model.Encryption.As(ctx, encryption, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	var network = &networkModel{}
+	if !(model.Network.IsNull() || model.Network.IsUnknown()) {
+		diags = model.Network.As(ctx, network, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	instanceResp, err := r.client.GetInstanceRequest(ctx, projectId, region, instanceId).Execute()
+	if err != nil {
+		oapiErr, ok := err.(*oapierror.GenericOpenAPIError) //nolint:errorlint //complaining that error.As should be used to catch wrapped errors, but this error should not be wrapped
+		if ok && oapiErr.StatusCode == http.StatusNotFound {
+			resp.State.RemoveResource(ctx)
+			return
+		}
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading instance", err.Error())
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	// Map response body to schema
+	err = mapFields(ctx, instanceResp, &model, flavor, storage, encryption, network, region)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error reading instance", fmt.Sprintf("Processing API payload: %v", err))
+		return
+	}
+	// Set refreshed state
+	diags = resp.State.Set(ctx, model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	tflog.Info(ctx, "SQLServer Flex instance read")
+}
+
+// Update updates the resource and sets the updated Terraform state on success.
+func (r *instanceResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) { // nolint:gocritic // function signature required by Terraform
+	// Retrieve values from plan
+	var model Model
+	diags := req.Plan.Get(ctx, &model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := model.ProjectId.ValueString()
+	instanceId := model.InstanceId.ValueString()
+	region := model.Region.ValueString()
+
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	var storage = &storageModel{}
+	if !(model.Storage.IsNull() || model.Storage.IsUnknown()) {
+		diags = model.Storage.As(ctx, storage, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	var encryption = &encryptionModel{}
+	if !(model.Encryption.IsNull() || model.Encryption.IsUnknown()) {
+		diags = model.Encryption.As(ctx, encryption, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	var network = &networkModel{}
+	if !(model.Network.IsNull() || model.Network.IsUnknown()) {
+		diags = model.Network.As(ctx, network, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	flavor := &flavorModel{}
+	if !(model.Flavor.IsNull() || model.Flavor.IsUnknown()) {
+		diags = model.Flavor.As(ctx, flavor, basetypes.ObjectAsOptions{})
+		resp.Diagnostics.Append(diags...)
+		if resp.Diagnostics.HasError() {
+			return
+		}
+	}
+
+	if flavor.Id.IsNull() || flavor.Id.IsUnknown() {
+		err := loadFlavorId(ctx, r.client, &model, flavor, storage)
+		if err != nil {
+			resp.Diagnostics.AddError(err.Error(), err.Error())
+			return
+		}
+		flavorValues := map[string]attr.Value{
+			"id":          flavor.Id,
+			"description": flavor.Description,
+			"cpu":         flavor.CPU,
+			"ram":         flavor.RAM,
+			"node_type":   flavor.NodeType,
+		}
+		var flavorObject basetypes.ObjectValue
+		flavorObject, diags = types.ObjectValue(flavorTypes, flavorValues)
+		resp.Diagnostics.Append(diags...)
+		if diags.HasError() {
+			return
+		}
+		model.Flavor = flavorObject
+	}
+
+	// Generate API request body from model
+	payload, err := toUpdatePayload(&model, storage, network)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating instance", fmt.Sprintf("Creating API payload: %v", err))
+		return
+	}
+	// Update existing instance
+	err = r.client.UpdateInstancePartiallyRequest(ctx, projectId, region, instanceId).UpdateInstancePartiallyRequestPayload(*payload).Execute()
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating instance", err.Error())
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	waitResp, err := wait.UpdateInstanceWaitHandler(ctx, r.client, projectId, instanceId, region).WaitWithContext(ctx)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating instance", fmt.Sprintf("Instance update waiting: %v", err))
+		return
+	}
+
+	// Map response body to schema
+	err = mapFields(ctx, waitResp, &model, flavor, storage, encryption, network, region)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error updating instance", fmt.Sprintf("Processing API payload: %v", err))
+		return
+	}
+	diags = resp.State.Set(ctx, model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+	tflog.Info(ctx, "SQLServer Flex instance updated")
+}
+
+// Delete deletes the resource and removes the Terraform state on success.
+func (r *instanceResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) { // nolint:gocritic // function signature required by Terraform
+	// Retrieve values from state
+	var model Model
+	diags := req.State.Get(ctx, &model)
+	resp.Diagnostics.Append(diags...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	ctx = core.InitProviderContext(ctx)
+
+	projectId := model.ProjectId.ValueString()
+	instanceId := model.InstanceId.ValueString()
+	region := model.Region.ValueString()
+	ctx = tflog.SetField(ctx, "project_id", projectId)
+	ctx = tflog.SetField(ctx, "instance_id", instanceId)
+	ctx = tflog.SetField(ctx, "region", region)
+
+	// Delete existing instance
+	err := r.client.DeleteInstanceRequest(ctx, projectId, region, instanceId).Execute()
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting instance", fmt.Sprintf("Calling API: %v", err))
+		return
+	}
+
+	ctx = core.LogResponse(ctx)
+
+	_, err = wait.DeleteInstanceWaitHandler(ctx, r.client, projectId, instanceId, region).WaitWithContext(ctx)
+	if err != nil {
+		core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting instance", fmt.Sprintf("Instance deletion waiting: %v", err))
+		return
+	}
+	tflog.Info(ctx, "SQLServer Flex instance deleted")
+}
+
+// ImportState imports a resource into the Terraform state on success.
+// The expected format of the resource import identifier is: project_id,instance_id
+func (r *instanceResource) ImportState(ctx context.Context, req resource.ImportStateRequest, resp *resource.ImportStateResponse) {
+	idParts := strings.Split(req.ID, core.Separator)
+
+	if len(idParts) != 3 || idParts[0] == "" || idParts[1] == "" || idParts[2] == "" {
+		core.LogAndAddError(ctx, &resp.Diagnostics,
+			"Error importing instance",
+			fmt.Sprintf("Expected import identifier with format: [project_id],[region],[instance_id]  Got: %q", req.ID),
+		)
+		return
+	}
+
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("project_id"), idParts[0])...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("region"), idParts[1])...)
+	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("instance_id"), idParts[2])...)
+	tflog.Info(ctx, "SQLServer Flex instance state imported")
+}

stackit/internal/services/sqlserverflexalpha/instance/resource_msh_test.go.bak

@@ -0,0 +1,282 @@
+// Copyright (c) STACKIT
+
+package sqlserverflex
+
+import (
+	"context"
+	"reflect"
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
+
+	sqlserverflex "github.com/stackitcloud/terraform-provider-stackit/pkg/sqlserverflexalpha"
+)
+
+func TestNewInstanceResource(t *testing.T) {
+	tests := []struct {
+		name string
+		want resource.Resource
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := NewInstanceResource(); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("NewInstanceResource() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func Test_instanceResource_Configure(t *testing.T) {
+	type fields struct {
+		client       *sqlserverflex.APIClient
+		providerData core.ProviderData
+	}
+	type args struct {
+		ctx  context.Context
+		req  resource.ConfigureRequest
+		resp *resource.ConfigureResponse
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &instanceResource{
+				client:       tt.fields.client,
+				providerData: tt.fields.providerData,
+			}
+			r.Configure(tt.args.ctx, tt.args.req, tt.args.resp)
+		})
+	}
+}
+
+func Test_instanceResource_Create(t *testing.T) {
+	type fields struct {
+		client       *sqlserverflex.APIClient
+		providerData core.ProviderData
+	}
+	type args struct {
+		ctx  context.Context
+		req  resource.CreateRequest
+		resp *resource.CreateResponse
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &instanceResource{
+				client:       tt.fields.client,
+				providerData: tt.fields.providerData,
+			}
+			r.Create(tt.args.ctx, tt.args.req, tt.args.resp)
+		})
+	}
+}
+
+func Test_instanceResource_Delete(t *testing.T) {
+	type fields struct {
+		client       *sqlserverflex.APIClient
+		providerData core.ProviderData
+	}
+	type args struct {
+		ctx  context.Context
+		req  resource.DeleteRequest
+		resp *resource.DeleteResponse
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &instanceResource{
+				client:       tt.fields.client,
+				providerData: tt.fields.providerData,
+			}
+			r.Delete(tt.args.ctx, tt.args.req, tt.args.resp)
+		})
+	}
+}
+
+func Test_instanceResource_ImportState(t *testing.T) {
+	type fields struct {
+		client       *sqlserverflex.APIClient
+		providerData core.ProviderData
+	}
+	type args struct {
+		ctx  context.Context
+		req  resource.ImportStateRequest
+		resp *resource.ImportStateResponse
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &instanceResource{
+				client:       tt.fields.client,
+				providerData: tt.fields.providerData,
+			}
+			r.ImportState(tt.args.ctx, tt.args.req, tt.args.resp)
+		})
+	}
+}
+
+func Test_instanceResource_Metadata(t *testing.T) {
+	type fields struct {
+		client       *sqlserverflex.APIClient
+		providerData core.ProviderData
+	}
+	type args struct {
+		in0  context.Context
+		req  resource.MetadataRequest
+		resp *resource.MetadataResponse
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &instanceResource{
+				client:       tt.fields.client,
+				providerData: tt.fields.providerData,
+			}
+			r.Metadata(tt.args.in0, tt.args.req, tt.args.resp)
+		})
+	}
+}
+
+func Test_instanceResource_ModifyPlan(t *testing.T) {
+	type fields struct {
+		client       *sqlserverflex.APIClient
+		providerData core.ProviderData
+	}
+	type args struct {
+		ctx  context.Context
+		req  resource.ModifyPlanRequest
+		resp *resource.ModifyPlanResponse
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &instanceResource{
+				client:       tt.fields.client,
+				providerData: tt.fields.providerData,
+			}
+			r.ModifyPlan(tt.args.ctx, tt.args.req, tt.args.resp)
+		})
+	}
+}
+
+func Test_instanceResource_Read(t *testing.T) {
+	type fields struct {
+		client       *sqlserverflex.APIClient
+		providerData core.ProviderData
+	}
+	type args struct {
+		ctx  context.Context
+		req  resource.ReadRequest
+		resp *resource.ReadResponse
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &instanceResource{
+				client:       tt.fields.client,
+				providerData: tt.fields.providerData,
+			}
+			r.Read(tt.args.ctx, tt.args.req, tt.args.resp)
+		})
+	}
+}
+
+func Test_instanceResource_Schema(t *testing.T) {
+	type fields struct {
+		client       *sqlserverflex.APIClient
+		providerData core.ProviderData
+	}
+	type args struct {
+		in0  context.Context
+		in1  resource.SchemaRequest
+		resp *resource.SchemaResponse
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &instanceResource{
+				client:       tt.fields.client,
+				providerData: tt.fields.providerData,
+			}
+			r.Schema(tt.args.in0, tt.args.in1, tt.args.resp)
+		})
+	}
+}
+
+func Test_instanceResource_Update(t *testing.T) {
+	type fields struct {
+		client       *sqlserverflex.APIClient
+		providerData core.ProviderData
+	}
+	type args struct {
+		ctx  context.Context
+		req  resource.UpdateRequest
+		resp *resource.UpdateResponse
+	}
+	tests := []struct {
+		name   string
+		fields fields
+		args   args
+	}{
+		// TODO: Add test cases.
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r := &instanceResource{
+				client:       tt.fields.client,
+				providerData: tt.fields.providerData,
+			}
+			r.Update(tt.args.ctx, tt.args.req, tt.args.resp)
+		})
+	}
+}

stackit/internal/services/sqlserverflexalpha/instance/resource_test.go

@@ -0,0 +1,862 @@
+package sqlserverflex
+
+import (
+	"context"
+	"fmt"
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"github.com/hashicorp/terraform-plugin-framework/attr"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
+	"github.com/stackitcloud/stackit-sdk-go/core/utils"
+	sqlserverflex "github.com/stackitcloud/terraform-provider-stackit/pkg/sqlserverflexalpha"
+)
+
+type sqlserverflexClientMocked struct {
+	returnError     bool
+	listFlavorsResp *sqlserverflex.GetFlavorsResponse
+}
+
+func (c *sqlserverflexClientMocked) GetFlavorsExecute(_ context.Context, _, _ string) (*sqlserverflex.GetFlavorsResponse, error) {
+	if c.returnError {
+		return nil, fmt.Errorf("get flavors failed")
+	}
+
+	return c.listFlavorsResp, nil
+}
+
+func TestMapFields(t *testing.T) {
+	const testRegion = "region"
+	tests := []struct {
+		description string
+		state       Model
+		input       *sqlserverflex.GetInstanceResponse
+		flavor      *flavorModel
+		storage     *storageModel
+		encryption  *encryptionModel
+		network     *networkModel
+		region      string
+		expected    Model
+		isValid     bool
+	}{
+		{
+			"default_values",
+			Model{
+				InstanceId:    types.StringValue("iid"),
+				ProjectId:     types.StringValue("pid"),
+				Replicas:      types.Int64Value(1),
+				RetentionDays: types.Int64Value(1),
+				Version:       types.StringValue("v1"),
+				Edition:       types.StringValue("edition 1"),
+				Status:        types.StringValue("status"),
+				IsDeletable:   types.BoolValue(true),
+				Flavor: types.ObjectValueMust(flavorTypes, map[string]attr.Value{
+					"id":          types.StringValue("flavor_id"),
+					"description": types.StringNull(),
+					"cpu":         types.Int64Null(),
+					"ram":         types.Int64Null(),
+					"node_type":   types.StringNull(),
+				}),
+			},
+			&sqlserverflex.GetInstanceResponse{
+				FlavorId:      utils.Ptr("flavor_id"),
+				Replicas:      sqlserverflex.GetInstanceResponseGetReplicasAttributeType(utils.Ptr(int32(1))),
+				RetentionDays: utils.Ptr(int64(1)),
+				Version:       sqlserverflex.GetInstanceResponseGetVersionAttributeType(utils.Ptr("v1")),
+				Edition:       sqlserverflex.GetInstanceResponseGetEditionAttributeType(utils.Ptr("edition 1")),
+				Status:        sqlserverflex.GetInstanceResponseGetStatusAttributeType(utils.Ptr("status")),
+				IsDeletable:   utils.Ptr(true),
+			},
+			&flavorModel{
+				Id: types.StringValue("flavor_id"),
+			},
+			&storageModel{},
+			&encryptionModel{},
+			&networkModel{
+				ACL: types.ListNull(basetypes.StringType{}),
+			},
+			testRegion,
+			Model{
+				Id:             types.StringValue("pid,region,iid"),
+				InstanceId:     types.StringValue("iid"),
+				ProjectId:      types.StringValue("pid"),
+				Name:           types.StringNull(),
+				BackupSchedule: types.StringNull(),
+				Flavor: types.ObjectValueMust(flavorTypes, map[string]attr.Value{
+					"id":          types.StringValue("flavor_id"),
+					"description": types.StringNull(),
+					"cpu":         types.Int64Null(),
+					"ram":         types.Int64Null(),
+					"node_type":   types.StringNull(),
+				}),
+				Replicas: types.Int64Value(1),
+				Storage: types.ObjectValueMust(storageTypes, map[string]attr.Value{
+					"class": types.StringNull(),
+					"size":  types.Int64Null(),
+				}),
+				Encryption: types.ObjectValueMust(encryptionTypes, map[string]attr.Value{
+					"keyring_id":      types.StringNull(),
+					"key_id":          types.StringNull(),
+					"key_version":     types.StringNull(),
+					"service_account": types.StringNull(),
+				}),
+				Network: types.ObjectValueMust(networkTypes, map[string]attr.Value{
+					"acl":              types.ListNull(types.StringType),
+					"access_scope":     types.StringNull(),
+					"instance_address": types.StringNull(),
+					"router_address":   types.StringNull(),
+				}),
+				IsDeletable:   types.BoolValue(true),
+				Edition:       types.StringValue("edition 1"),
+				Status:        types.StringValue("status"),
+				RetentionDays: types.Int64Value(1),
+				Version:       types.StringValue("v1"),
+				Region:        types.StringValue(testRegion),
+			},
+			true,
+		},
+		{
+			"simple_values",
+			Model{
+				InstanceId: types.StringValue("iid"),
+				ProjectId:  types.StringValue("pid"),
+			},
+			&sqlserverflex.GetInstanceResponse{
+				Acl: &[]string{
+					"ip1",
+					"ip2",
+					"",
+				},
+				BackupSchedule: utils.Ptr("schedule"),
+				FlavorId:       utils.Ptr("flavor_id"),
+				Id:             utils.Ptr("iid"),
+				Name:           utils.Ptr("name"),
+				Replicas:       sqlserverflex.GetInstanceResponseGetReplicasAttributeType(utils.Ptr(int32(56))),
+				Status:         sqlserverflex.GetInstanceResponseGetStatusAttributeType(utils.Ptr("status")),
+				Storage: &sqlserverflex.Storage{
+					Class: utils.Ptr("class"),
+					Size:  utils.Ptr(int64(78)),
+				},
+				Edition:       sqlserverflex.GetInstanceResponseGetEditionAttributeType(utils.Ptr("edition")),
+				RetentionDays: utils.Ptr(int64(1)),
+				Version:       sqlserverflex.GetInstanceResponseGetVersionAttributeType(utils.Ptr("version")),
+				IsDeletable:   utils.Ptr(true),
+				Encryption:    nil,
+			},
+			&flavorModel{
+				Id:          basetypes.NewStringValue("flavor_id"),
+				Description: basetypes.NewStringValue("description"),
+				CPU:         basetypes.NewInt64Value(12),
+				RAM:         basetypes.NewInt64Value(34),
+				NodeType:    basetypes.NewStringValue("node_type"),
+			},
+			&storageModel{},
+			&encryptionModel{},
+			&networkModel{
+				ACL: types.ListValueMust(basetypes.StringType{}, []attr.Value{
+					types.StringValue("ip1"),
+					types.StringValue("ip2"),
+					types.StringValue(""),
+				}),
+			},
+			testRegion,
+			Model{
+				Id:             types.StringValue("pid,region,iid"),
+				InstanceId:     types.StringValue("iid"),
+				ProjectId:      types.StringValue("pid"),
+				Name:           types.StringValue("name"),
+				BackupSchedule: types.StringValue("schedule"),
+				Flavor: types.ObjectValueMust(flavorTypes, map[string]attr.Value{
+					"id":          types.StringValue("flavor_id"),
+					"description": types.StringValue("description"),
+					"cpu":         types.Int64Value(12),
+					"ram":         types.Int64Value(34),
+					"node_type":   types.StringValue("node_type"),
+				}),
+				Replicas: types.Int64Value(56),
+				Storage: types.ObjectValueMust(storageTypes, map[string]attr.Value{
+					"class": types.StringValue("class"),
+					"size":  types.Int64Value(78),
+				}),
+				Network: types.ObjectValueMust(networkTypes, map[string]attr.Value{
+					"acl": types.ListValueMust(types.StringType, []attr.Value{
+						types.StringValue("ip1"),
+						types.StringValue("ip2"),
+						types.StringValue(""),
+					}),
+					"access_scope":     types.StringNull(),
+					"instance_address": types.StringNull(),
+					"router_address":   types.StringNull(),
+				}),
+				Edition:       types.StringValue("edition"),
+				RetentionDays: types.Int64Value(1),
+				Version:       types.StringValue("version"),
+				Region:        types.StringValue(testRegion),
+				IsDeletable:   types.BoolValue(true),
+				Encryption: types.ObjectValueMust(encryptionTypes, map[string]attr.Value{
+					"keyring_id":      types.StringNull(),
+					"key_id":          types.StringNull(),
+					"key_version":     types.StringNull(),
+					"service_account": types.StringNull(),
+				}),
+				Status: types.StringValue("status"),
+			},
+			true,
+		},
+		//{
+		//	"simple_values_no_flavor_and_storage",
+		//	Model{
+		//		InstanceId: types.StringValue("iid"),
+		//		ProjectId:  types.StringValue("pid"),
+		//	},
+		//	&sqlserverflex.GetInstanceResponse{
+		//		Acl: &[]string{
+		//			"ip1",
+		//			"ip2",
+		//			"",
+		//		},
+		//		BackupSchedule: utils.Ptr("schedule"),
+		//		FlavorId:       nil,
+		//		Id:             utils.Ptr("iid"),
+		//		Name:           utils.Ptr("name"),
+		//		Replicas:       sqlserverflex.GetInstanceResponseGetReplicasAttributeType(utils.Ptr(int32(56))),
+		//		Status:         sqlserverflex.GetInstanceResponseGetStatusAttributeType(utils.Ptr("status")),
+		//		Storage:        nil,
+		//		Edition:        sqlserverflex.GetInstanceResponseGetEditionAttributeType(utils.Ptr("edition")),
+		//		RetentionDays:  utils.Ptr(int64(1)),
+		//		Version:        sqlserverflex.GetInstanceResponseGetVersionAttributeType(utils.Ptr("version")),
+		//	},
+		//	&flavorModel{
+		//		CPU: types.Int64Value(12),
+		//		RAM: types.Int64Value(34),
+		//	},
+		//	&storageModel{
+		//		Class: types.StringValue("class"),
+		//		Size:  types.Int64Value(78),
+		//	},
+		//	&optionsModel{
+		//		Edition:       types.StringValue("edition"),
+		//		RetentionDays: types.Int64Value(1),
+		//	},
+		//	testRegion,
+		//	Model{
+		//		Id:         types.StringValue("pid,region,iid"),
+		//		InstanceId: types.StringValue("iid"),
+		//		ProjectId:  types.StringValue("pid"),
+		//		Name:       types.StringValue("name"),
+		//		ACL: types.ListValueMust(types.StringType, []attr.Value{
+		//			types.StringValue("ip1"),
+		//			types.StringValue("ip2"),
+		//			types.StringValue(""),
+		//		}),
+		//		BackupSchedule: types.StringValue("schedule"),
+		//		Flavor: types.ObjectValueMust(flavorTypes, map[string]attr.Value{
+		//			"id":          types.StringNull(),
+		//			"description": types.StringNull(),
+		//			"cpu":         types.Int64Value(12),
+		//			"ram":         types.Int64Value(34),
+		//		}),
+		//		Replicas: types.Int64Value(56),
+		//		Storage: types.ObjectValueMust(storageTypes, map[string]attr.Value{
+		//			"class": types.StringValue("class"),
+		//			"size":  types.Int64Value(78),
+		//		}),
+		//		Options: types.ObjectValueMust(optionsTypes, map[string]attr.Value{
+		//			"edition":        types.StringValue("edition"),
+		//			"retention_days": types.Int64Value(1),
+		//		}),
+		//		Version: types.StringValue("version"),
+		//		Region:  types.StringValue(testRegion),
+		//	},
+		//	true,
+		//},
+		//{
+		//	"acls_unordered",
+		//	Model{
+		//		InstanceId: types.StringValue("iid"),
+		//		ProjectId:  types.StringValue("pid"),
+		//		ACL: types.ListValueMust(types.StringType, []attr.Value{
+		//			types.StringValue("ip2"),
+		//			types.StringValue(""),
+		//			types.StringValue("ip1"),
+		//		}),
+		//	},
+		//	&sqlserverflex.GetInstanceResponse{
+		//		Acl: &[]string{
+		//			"",
+		//			"ip1",
+		//			"ip2",
+		//		},
+		//		BackupSchedule: utils.Ptr("schedule"),
+		//		FlavorId:       nil,
+		//		Id:             utils.Ptr("iid"),
+		//		Name:           utils.Ptr("name"),
+		//		Replicas:       sqlserverflex.GetInstanceResponseGetReplicasAttributeType(utils.Ptr(int32(56))),
+		//		Status:         sqlserverflex.GetInstanceResponseGetStatusAttributeType(utils.Ptr("status")),
+		//		Storage:        nil,
+		//		//Options: &map[string]string{
+		//		//	"edition":       "edition",
+		//		//	"retentionDays": "1",
+		//		//},
+		//		Version: sqlserverflex.GetInstanceResponseGetVersionAttributeType(utils.Ptr("version")),
+		//	},
+		//	&flavorModel{
+		//		CPU: types.Int64Value(12),
+		//		RAM: types.Int64Value(34),
+		//	},
+		//	&storageModel{
+		//		Class: types.StringValue("class"),
+		//		Size:  types.Int64Value(78),
+		//	},
+		//	&optionsModel{},
+		//	testRegion,
+		//	Model{
+		//		Id:         types.StringValue("pid,region,iid"),
+		//		InstanceId: types.StringValue("iid"),
+		//		ProjectId:  types.StringValue("pid"),
+		//		Name:       types.StringValue("name"),
+		//		ACL: types.ListValueMust(types.StringType, []attr.Value{
+		//			types.StringValue("ip2"),
+		//			types.StringValue(""),
+		//			types.StringValue("ip1"),
+		//		}),
+		//		BackupSchedule: types.StringValue("schedule"),
+		//		Flavor: types.ObjectValueMust(flavorTypes, map[string]attr.Value{
+		//			"id":          types.StringNull(),
+		//			"description": types.StringNull(),
+		//			"cpu":         types.Int64Value(12),
+		//			"ram":         types.Int64Value(34),
+		//		}),
+		//		Replicas: types.Int64Value(56),
+		//		Storage: types.ObjectValueMust(storageTypes, map[string]attr.Value{
+		//			"class": types.StringValue("class"),
+		//			"size":  types.Int64Value(78),
+		//		}),
+		//		Options: types.ObjectValueMust(optionsTypes, map[string]attr.Value{
+		//			"edition":        types.StringValue("edition"),
+		//			"retention_days": types.Int64Value(1),
+		//		}),
+		//		Version: types.StringValue("version"),
+		//		Region:  types.StringValue(testRegion),
+		//	},
+		//	true,
+		//},
+		//{
+		//	"nil_response",
+		//	Model{
+		//		InstanceId: types.StringValue("iid"),
+		//		ProjectId:  types.StringValue("pid"),
+		//	},
+		//	nil,
+		//	&flavorModel{},
+		//	&storageModel{},
+		//	&optionsModel{},
+		//	testRegion,
+		//	Model{},
+		//	false,
+		//},
+		//{
+		//	"no_resource_id",
+		//	Model{
+		//		InstanceId: types.StringValue("iid"),
+		//		ProjectId:  types.StringValue("pid"),
+		//	},
+		//	&sqlserverflex.GetInstanceResponse{},
+		//	&flavorModel{},
+		//	&storageModel{},
+		//	&optionsModel{},
+		//	testRegion,
+		//	Model{},
+		//	false,
+		//},
+	}
+	for _, tt := range tests {
+		t.Run(tt.description, func(t *testing.T) {
+			err := mapFields(context.Background(), tt.input, &tt.state, tt.flavor, tt.storage, tt.encryption, tt.network, tt.region)
+			if !tt.isValid && err == nil {
+				t.Fatalf("Should have failed")
+			}
+			if tt.isValid && err != nil {
+				t.Fatalf("Should not have failed: %v", err)
+			}
+			if tt.isValid {
+				diff := cmp.Diff(tt.state, tt.expected)
+				if diff != "" {
+					t.Fatalf("Data does not match: %s", diff)
+				}
+			}
+		})
+	}
+}
+
+//func TestToCreatePayload(t *testing.T) {
+//	tests := []struct {
+//		description  string
+//		input        *Model
+//		inputAcl     []string
+//		inputFlavor  *flavorModel
+//		inputStorage *storageModel
+//		inputOptions *optionsModel
+//		expected     *sqlserverflex.CreateInstanceRequestPayload
+//		isValid      bool
+//	}{
+//		{
+//			"default_values",
+//			&Model{},
+//			[]string{},
+//			&flavorModel{},
+//			&storageModel{},
+//			&optionsModel{},
+//			&sqlserverflex.CreateInstanceRequestPayload{
+//				Acl:     &sqlserverflex.CreateInstanceRequestPayloadGetAclArgType{},
+//				Storage: &sqlserverflex.CreateInstanceRequestPayloadGetStorageArgType{},
+//			},
+//			true,
+//		},
+//		{
+//			"simple_values",
+//			&Model{
+//				BackupSchedule: types.StringValue("schedule"),
+//				Name:           types.StringValue("name"),
+//				Replicas:       types.Int64Value(12),
+//				Version:        types.StringValue("version"),
+//			},
+//			[]string{
+//				"ip_1",
+//				"ip_2",
+//			},
+//			&flavorModel{
+//				Id: types.StringValue("flavor_id"),
+//			},
+//			&storageModel{
+//				Class: types.StringValue("class"),
+//				Size:  types.Int64Value(34),
+//			},
+//			&optionsModel{
+//				Edition:       types.StringValue("edition"),
+//				RetentionDays: types.Int64Value(1),
+//			},
+//			&sqlserverflex.CreateInstancePayload{
+//				Acl: &sqlserverflex.CreateInstancePayloadAcl{
+//					Items: &[]string{
+//						"ip_1",
+//						"ip_2",
+//					},
+//				},
+//				BackupSchedule: utils.Ptr("schedule"),
+//				FlavorId:       utils.Ptr("flavor_id"),
+//				Name:           utils.Ptr("name"),
+//				Storage: &sqlserverflex.CreateInstancePayloadStorage{
+//					Class: utils.Ptr("class"),
+//					Size:  utils.Ptr(int64(34)),
+//				},
+//				Options: &sqlserverflex.CreateInstancePayloadOptions{
+//					Edition:       utils.Ptr("edition"),
+//					RetentionDays: utils.Ptr("1"),
+//				},
+//				Version: utils.Ptr("version"),
+//			},
+//			true,
+//		},
+//		{
+//			"null_fields_and_int_conversions",
+//			&Model{
+//				BackupSchedule: types.StringNull(),
+//				Name:           types.StringNull(),
+//				Replicas:       types.Int64Value(2123456789),
+//				Version:        types.StringNull(),
+//			},
+//			[]string{
+//				"",
+//			},
+//			&flavorModel{
+//				Id: types.StringNull(),
+//			},
+//			&storageModel{
+//				Class: types.StringNull(),
+//				Size:  types.Int64Null(),
+//			},
+//			&optionsModel{
+//				Edition:       types.StringNull(),
+//				RetentionDays: types.Int64Null(),
+//			},
+//			&sqlserverflex.CreateInstancePayload{
+//				Acl: &sqlserverflex.CreateInstancePayloadAcl{
+//					Items: &[]string{
+//						"",
+//					},
+//				},
+//				BackupSchedule: nil,
+//				FlavorId:       nil,
+//				Name:           nil,
+//				Storage: &sqlserverflex.CreateInstancePayloadStorage{
+//					Class: nil,
+//					Size:  nil,
+//				},
+//				Options: &sqlserverflex.CreateInstancePayloadOptions{},
+//				Version: nil,
+//			},
+//			true,
+//		},
+//		{
+//			"nil_model",
+//			nil,
+//			[]string{},
+//			&flavorModel{},
+//			&storageModel{},
+//			&optionsModel{},
+//			nil,
+//			false,
+//		},
+//		{
+//			"nil_acl",
+//			&Model{},
+//			nil,
+//			&flavorModel{},
+//			&storageModel{},
+//			&optionsModel{},
+//			&sqlserverflex.CreateInstancePayload{
+//				Acl:     &sqlserverflex.CreateInstancePayloadAcl{},
+//				Storage: &sqlserverflex.CreateInstancePayloadStorage{},
+//				Options: &sqlserverflex.CreateInstancePayloadOptions{},
+//			},
+//			true,
+//		},
+//		{
+//			"nil_flavor",
+//			&Model{},
+//			[]string{},
+//			nil,
+//			&storageModel{},
+//			&optionsModel{},
+//			nil,
+//			false,
+//		},
+//		{
+//			"nil_storage",
+//			&Model{},
+//			[]string{},
+//			&flavorModel{},
+//			nil,
+//			&optionsModel{},
+//			&sqlserverflex.CreateInstancePayload{
+//				Acl: &sqlserverflex.CreateInstancePayloadAcl{
+//					Items: &[]string{},
+//				},
+//				Storage: &sqlserverflex.CreateInstancePayloadStorage{},
+//				Options: &sqlserverflex.CreateInstancePayloadOptions{},
+//			},
+//			true,
+//		},
+//		{
+//			"nil_options",
+//			&Model{},
+//			[]string{},
+//			&flavorModel{},
+//			&storageModel{},
+//			nil,
+//			&sqlserverflex.CreateInstancePayload{
+//				Acl: &sqlserverflex.CreateInstancePayloadAcl{
+//					Items: &[]string{},
+//				},
+//				Storage: &sqlserverflex.CreateInstancePayloadStorage{},
+//				Options: &sqlserverflex.CreateInstancePayloadOptions{},
+//			},
+//			true,
+//		},
+//	}
+//	for _, tt := range tests {
+//		t.Run(tt.description, func(t *testing.T) {
+//			output, err := toCreatePayload(tt.input, tt.inputAcl, tt.inputFlavor, tt.inputStorage, tt.inputOptions)
+//			if !tt.isValid && err == nil {
+//				t.Fatalf("Should have failed")
+//			}
+//			if tt.isValid && err != nil {
+//				t.Fatalf("Should not have failed: %v", err)
+//			}
+//			if tt.isValid {
+//				diff := cmp.Diff(output, tt.expected)
+//				if diff != "" {
+//					t.Fatalf("Data does not match: %s", diff)
+//				}
+//			}
+//		})
+//	}
+//}
+//
+//func TestToUpdatePayload(t *testing.T) {
+//	tests := []struct {
+//		description string
+//		input       *Model
+//		inputAcl    []string
+//		inputFlavor *flavorModel
+//		expected    *sqlserverflex.PartialUpdateInstancePayload
+//		isValid     bool
+//	}{
+//		{
+//			"default_values",
+//			&Model{},
+//			[]string{},
+//			&flavorModel{},
+//			&sqlserverflex.PartialUpdateInstancePayload{
+//				Acl: &sqlserverflex.CreateInstancePayloadAcl{
+//					Items: &[]string{},
+//				},
+//			},
+//			true,
+//		},
+//		{
+//			"simple_values",
+//			&Model{
+//				BackupSchedule: types.StringValue("schedule"),
+//				Name:           types.StringValue("name"),
+//				Replicas:       types.Int64Value(12),
+//				Version:        types.StringValue("version"),
+//			},
+//			[]string{
+//				"ip_1",
+//				"ip_2",
+//			},
+//			&flavorModel{
+//				Id: types.StringValue("flavor_id"),
+//			},
+//			&sqlserverflex.PartialUpdateInstancePayload{
+//				Acl: &sqlserverflex.CreateInstancePayloadAcl{
+//					Items: &[]string{
+//						"ip_1",
+//						"ip_2",
+//					},
+//				},
+//				BackupSchedule: utils.Ptr("schedule"),
+//				FlavorId:       utils.Ptr("flavor_id"),
+//				Name:           utils.Ptr("name"),
+//				Version:        utils.Ptr("version"),
+//			},
+//			true,
+//		},
+//		{
+//			"null_fields_and_int_conversions",
+//			&Model{
+//				BackupSchedule: types.StringNull(),
+//				Name:           types.StringNull(),
+//				Replicas:       types.Int64Value(2123456789),
+//				Version:        types.StringNull(),
+//			},
+//			[]string{
+//				"",
+//			},
+//			&flavorModel{
+//				Id: types.StringNull(),
+//			},
+//			&sqlserverflex.PartialUpdateInstancePayload{
+//				Acl: &sqlserverflex.CreateInstancePayloadAcl{
+//					Items: &[]string{
+//						"",
+//					},
+//				},
+//				BackupSchedule: nil,
+//				FlavorId:       nil,
+//				Name:           nil,
+//				Version:        nil,
+//			},
+//			true,
+//		},
+//		{
+//			"nil_model",
+//			nil,
+//			[]string{},
+//			&flavorModel{},
+//			nil,
+//			false,
+//		},
+//		{
+//			"nil_acl",
+//			&Model{},
+//			nil,
+//			&flavorModel{},
+//			&sqlserverflex.PartialUpdateInstancePayload{
+//				Acl: &sqlserverflex.CreateInstancePayloadAcl{},
+//			},
+//			true,
+//		},
+//		{
+//			"nil_flavor",
+//			&Model{},
+//			[]string{},
+//			nil,
+//			nil,
+//			false,
+//		},
+//	}
+//	for _, tt := range tests {
+//		t.Run(tt.description, func(t *testing.T) {
+//			output, err := toUpdatePayload(tt.input, tt.inputAcl, tt.inputFlavor)
+//			if !tt.isValid && err == nil {
+//				t.Fatalf("Should have failed")
+//			}
+//			if tt.isValid && err != nil {
+//				t.Fatalf("Should not have failed: %v", err)
+//			}
+//			if tt.isValid {
+//				diff := cmp.Diff(output, tt.expected)
+//				if diff != "" {
+//					t.Fatalf("Data does not match: %s", diff)
+//				}
+//			}
+//		})
+//	}
+//}
+//
+//func TestLoadFlavorId(t *testing.T) {
+//	tests := []struct {
+//		description     string
+//		inputFlavor     *flavorModel
+//		mockedResp      *sqlserverflex.ListFlavorsResponse
+//		expected        *flavorModel
+//		getFlavorsFails bool
+//		isValid         bool
+//	}{
+//		{
+//			"ok_flavor",
+//			&flavorModel{
+//				CPU: types.Int64Value(2),
+//				RAM: types.Int64Value(8),
+//			},
+//			&sqlserverflex.ListFlavorsResponse{
+//				Flavors: &[]sqlserverflex.InstanceFlavorEntry{
+//					{
+//						Id:          utils.Ptr("fid-1"),
+//						Cpu:         utils.Ptr(int64(2)),
+//						Description: utils.Ptr("description"),
+//						Memory:      utils.Ptr(int64(8)),
+//					},
+//				},
+//			},
+//			&flavorModel{
+//				Id:          types.StringValue("fid-1"),
+//				Description: types.StringValue("description"),
+//				CPU:         types.Int64Value(2),
+//				RAM:         types.Int64Value(8),
+//			},
+//			false,
+//			true,
+//		},
+//		{
+//			"ok_flavor_2",
+//			&flavorModel{
+//				CPU: types.Int64Value(2),
+//				RAM: types.Int64Value(8),
+//			},
+//			&sqlserverflex.ListFlavorsResponse{
+//				Flavors: &[]sqlserverflex.InstanceFlavorEntry{
+//					{
+//						Id:          utils.Ptr("fid-1"),
+//						Cpu:         utils.Ptr(int64(2)),
+//						Description: utils.Ptr("description"),
+//						Memory:      utils.Ptr(int64(8)),
+//					},
+//					{
+//						Id:          utils.Ptr("fid-2"),
+//						Cpu:         utils.Ptr(int64(1)),
+//						Description: utils.Ptr("description"),
+//						Memory:      utils.Ptr(int64(4)),
+//					},
+//				},
+//			},
+//			&flavorModel{
+//				Id:          types.StringValue("fid-1"),
+//				Description: types.StringValue("description"),
+//				CPU:         types.Int64Value(2),
+//				RAM:         types.Int64Value(8),
+//			},
+//			false,
+//			true,
+//		},
+//		{
+//			"no_matching_flavor",
+//			&flavorModel{
+//				CPU: types.Int64Value(2),
+//				RAM: types.Int64Value(8),
+//			},
+//			&sqlserverflex.ListFlavorsResponse{
+//				Flavors: &[]sqlserverflex.InstanceFlavorEntry{
+//					{
+//						Id:          utils.Ptr("fid-1"),
+//						Cpu:         utils.Ptr(int64(1)),
+//						Description: utils.Ptr("description"),
+//						Memory:      utils.Ptr(int64(8)),
+//					},
+//					{
+//						Id:          utils.Ptr("fid-2"),
+//						Cpu:         utils.Ptr(int64(1)),
+//						Description: utils.Ptr("description"),
+//						Memory:      utils.Ptr(int64(4)),
+//					},
+//				},
+//			},
+//			&flavorModel{
+//				CPU: types.Int64Value(2),
+//				RAM: types.Int64Value(8),
+//			},
+//			false,
+//			false,
+//		},
+//		{
+//			"nil_response",
+//			&flavorModel{
+//				CPU: types.Int64Value(2),
+//				RAM: types.Int64Value(8),
+//			},
+//			&sqlserverflex.ListFlavorsResponse{},
+//			&flavorModel{
+//				CPU: types.Int64Value(2),
+//				RAM: types.Int64Value(8),
+//			},
+//			false,
+//			false,
+//		},
+//		{
+//			"error_response",
+//			&flavorModel{
+//				CPU: types.Int64Value(2),
+//				RAM: types.Int64Value(8),
+//			},
+//			&sqlserverflex.ListFlavorsResponse{},
+//			&flavorModel{
+//				CPU: types.Int64Value(2),
+//				RAM: types.Int64Value(8),
+//			},
+//			true,
+//			false,
+//		},
+//	}
+//	for _, tt := range tests {
+//		t.Run(tt.description, func(t *testing.T) {
+//			client := &sqlserverflexClientMocked{
+//				returnError:     tt.getFlavorsFails,
+//				listFlavorsResp: tt.mockedResp,
+//			}
+//			model := &Model{
+//				ProjectId: types.StringValue("pid"),
+//			}
+//			flavorModel := &flavorModel{
+//				CPU: tt.inputFlavor.CPU,
+//				RAM: tt.inputFlavor.RAM,
+//			}
+//			err := loadFlavorId(context.Background(), client, model, flavorModel)
+//			if !tt.isValid && err == nil {
+//				t.Fatalf("Should have failed")
+//			}
+//			if tt.isValid && err != nil {
+//				t.Fatalf("Should not have failed: %v", err)
+//			}
+//			if tt.isValid {
+//				diff := cmp.Diff(flavorModel, tt.expected)
+//				if diff != "" {
+//					t.Fatalf("Data does not match: %s", diff)
+//				}
+//			}
+//		})
+//	}
+//}