feat(inference): add waiter (#2086)

Author: Laure-di

api/inference/v1beta1/inference_utils.go

@@ -0,0 +1,58 @@
+package inference
+
+import (
+	"github.com/scaleway/scaleway-sdk-go/internal/async"
+	"github.com/scaleway/scaleway-sdk-go/internal/errors"
+	"github.com/scaleway/scaleway-sdk-go/scw"
+	"time"
+)
+
+const (
+	defaultRetryInterval = 15 * time.Second
+	defaultTimeout       = 30 * time.Minute
+)
+
+type WaitForDeploymentRequest struct {
+	DeploymentId  string
+	Region        scw.Region
+	Status        DeploymentStatus
+	Timeout       *time.Duration
+	RetryInterval *time.Duration
+}
+
+func (s *API) WaitForDeployment(req *WaitForDeploymentRequest, opts ...scw.RequestOption) (*Deployment, error) {
+	timeout := defaultTimeout
+	if req.Timeout != nil {
+		timeout = *req.Timeout
+	}
+	retryInterval := defaultRetryInterval
+	if req.RetryInterval != nil {
+		retryInterval = *req.RetryInterval
+	}
+
+	terminalStatus := map[DeploymentStatus]struct{}{
+		DeploymentStatusReady:  {},
+		DeploymentStatusError:  {},
+		DeploymentStatusLocked: {},
+	}
+
+	deployment, err := async.WaitSync(&async.WaitSyncConfig{
+		Get: func() (interface{}, bool, error) {
+			deployment, err := s.GetDeployment(&GetDeploymentRequest{
+				Region:       req.Region,
+				DeploymentID: req.DeploymentId,
+			}, opts...)
+			if err != nil {
+				return nil, false, err
+			}
+			_, isTerminal := terminalStatus[deployment.Status]
+			return deployment, isTerminal, nil
+		},
+		IntervalStrategy: async.LinearIntervalStrategy(retryInterval),
+		Timeout:          timeout,
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "waiting for deployment failed")
+	}
+	return deployment.(*Deployment), nil
+}