fix: builder and sdk changes (#81)

## Description

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At least please give us some description what you are trying to achieve and why your change is needed. -->

relates to #1234

## Checklist

- [ ] Issue was linked above
- [ ] Code format was applied: `make fmt`
- [ ] Examples were added / adjusted (see `examples/` directory)
- [x] Docs are up-to-date: `make generate-docs` (will be checked by CI)
- [ ] Unit tests got implemented or updated
- [ ] Acceptance tests got implemented or updated (see e.g. [here](f5f99d1709/stackit/internal/services/dns/dns_acc_test.go))
- [x] Unit tests are passing: `make test` (will be checked by CI)
- [x] No linter issues: `make lint` (will be checked by CI)

Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>
Co-authored-by: marcel.henselin <marcel.henselin@stackit.cloud>
Reviewed-on: #81

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

@@ -19,7 +19,7 @@ import (
 	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/conversion"
 	wait "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/wait/sqlserverflexalpha"
 
-	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/pkg_gen/sqlserverflexalpha"
+	sqlserverflexalpha "github.com/stackitcloud/stackit-sdk-go/services/sqlserverflex/v3alpha1api"
 
 	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/core"
 	"tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/utils"
@@ -179,7 +179,7 @@ func (r *instanceResource) ModifyPlan(
 
 func (r *instanceResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
 	var data resourceModel
-	crateErr := "[SQL Server Flex BETA - Create] error"
+	crateErr := "[SQL Server Flex Alpha - Create] error"
 
 	// Read Terraform plan data into the model
 	resp.Diagnostics.Append(req.Plan.Get(ctx, &data)...)
@@ -207,7 +207,7 @@ func (r *instanceResource) Create(ctx context.Context, req resource.CreateReques
 		return
 	}
 	// Create new Instance
-	createResp, err := r.client.CreateInstanceRequest(
+	createResp, err := r.client.DefaultAPI.CreateInstanceRequest(
 		ctx,
 		projectId,
 		region,
@@ -219,7 +219,7 @@ func (r *instanceResource) Create(ctx context.Context, req resource.CreateReques
 
 	ctx = core.LogResponse(ctx)
 
-	InstanceId := *createResp.Id
+	instanceId := createResp.Id
 
 	// Example data value setting
 	data.InstanceId = types.StringValue("id-from-response")
@@ -227,7 +227,7 @@ func (r *instanceResource) Create(ctx context.Context, req resource.CreateReques
 	identity := InstanceResourceIdentityModel{
 		ProjectID:  types.StringValue(projectId),
 		Region:     types.StringValue(region),
-		InstanceID: types.StringValue(InstanceId),
+		InstanceID: types.StringValue(instanceId),
 	}
 	resp.Diagnostics.Append(resp.Identity.Set(ctx, identity)...)
 	if resp.Diagnostics.HasError() {
@@ -236,9 +236,9 @@ func (r *instanceResource) Create(ctx context.Context, req resource.CreateReques
 
 	waitResp, err := wait.CreateInstanceWaitHandler(
 		ctx,
-		r.client,
+		r.client.DefaultAPI,
 		projectId,
-		InstanceId,
+		instanceId,
 		region,
 	).SetSleepBeforeWait(
 		10 * time.Second,
@@ -255,7 +255,7 @@ func (r *instanceResource) Create(ctx context.Context, req resource.CreateReques
 		return
 	}
 
-	if waitResp.Id == nil {
+	if waitResp.Id == "" {
 		core.LogAndAddError(
 			ctx,
 			&resp.Diagnostics,
@@ -309,7 +309,7 @@ func (r *instanceResource) Read(ctx context.Context, req resource.ReadRequest, r
 	instanceId := data.InstanceId.ValueString()
 	ctx = tflog.SetField(ctx, "instance_id", instanceId)
 
-	instanceResp, err := r.client.GetInstanceRequest(ctx, projectId, region, instanceId).Execute()
+	instanceResp, err := r.client.DefaultAPI.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 {
@@ -385,7 +385,7 @@ func (r *instanceResource) Update(ctx context.Context, req resource.UpdateReques
 		return
 	}
 	// Update existing instance
-	err = r.client.UpdateInstanceRequest(
+	err = r.client.DefaultAPI.UpdateInstanceRequest(
 		ctx,
 		projectId,
 		region,
@@ -399,7 +399,7 @@ func (r *instanceResource) Update(ctx context.Context, req resource.UpdateReques
 	ctx = core.LogResponse(ctx)
 
 	waitResp, err := wait.
-		UpdateInstanceWaitHandler(ctx, r.client, projectId, instanceId, region).
+		UpdateInstanceWaitHandler(ctx, r.client.DefaultAPI, projectId, instanceId, region).
 		SetSleepBeforeWait(15 * time.Second).
 		SetTimeout(45 * time.Minute).
 		WaitWithContext(ctx)
@@ -471,7 +471,7 @@ func (r *instanceResource) Delete(ctx context.Context, req resource.DeleteReques
 	ctx = tflog.SetField(ctx, "instance_id", instanceId)
 
 	// Delete existing instance
-	err := r.client.DeleteInstanceRequest(ctx, projectId, region, instanceId).Execute()
+	err := r.client.DefaultAPI.DeleteInstanceRequest(ctx, projectId, region, instanceId).Execute()
 	if err != nil {
 		core.LogAndAddError(ctx, &resp.Diagnostics, "Error deleting instance", fmt.Sprintf("Calling API: %v", err))
 		return
@@ -479,7 +479,7 @@ func (r *instanceResource) Delete(ctx context.Context, req resource.DeleteReques
 
 	ctx = core.LogResponse(ctx)
 
-	delResp, err := wait.DeleteInstanceWaitHandler(ctx, r.client, projectId, instanceId, region).WaitWithContext(ctx)
+	delResp, err := wait.DeleteInstanceWaitHandler(ctx, r.client.DefaultAPI, projectId, instanceId, region).WaitWithContext(ctx)
 	if err != nil {
 		core.LogAndAddError(
 			ctx,