add provider usage check before estimation preview (#1293)

Author: jordanstephens

src/cmd/cli/command/estimate.go

@@ -5,9 +5,6 @@ import (
 
 	"github.com/DefangLabs/defang/src/pkg"
 	"github.com/DefangLabs/defang/src/pkg/cli"
-	cliClient "github.com/DefangLabs/defang/src/pkg/cli/client"
-	"github.com/DefangLabs/defang/src/pkg/cli/client/byoc/aws"
-	"github.com/DefangLabs/defang/src/pkg/cli/client/byoc/gcp"
 	"github.com/DefangLabs/defang/src/pkg/term"
 	defangv1 "github.com/DefangLabs/defang/src/protos/io/defang/v1"
 	"github.com/spf13/cobra"
@@ -29,24 +26,14 @@ func makeEstimateCmd() *cobra.Command {
 				return err
 			}
 
-			var previewProvider cliClient.Provider = &cliClient.PlaygroundProvider{FabricClient: client}
-			switch providerID {
-			case cliClient.ProviderAWS:
-				if awsInEnv() {
-					previewProvider = aws.NewByocProvider(ctx, client.GetTenantName())
-				}
-			case cliClient.ProviderGCP:
-				if gcpInEnv() {
-					previewProvider = gcp.NewByocProvider(ctx, client.GetTenantName())
-				}
-			case cliClient.ProviderAuto:
-				fallthrough
-			case cliClient.ProviderDefang:
-				if _, err := interactiveSelectProvider([]cliClient.ProviderID{cliClient.ProviderAWS, cliClient.ProviderGCP}); err != nil {
-					return err
-				}
-			default:
-				return fmt.Errorf("unsupported provider %s; must be one of %v", providerID, []cliClient.ProviderID{cliClient.ProviderAWS})
+			previewProvider, err := newProvider(cmd.Context(), loader)
+			if err != nil {
+				return err
+			}
+
+			err = canIUseProvider(cmd.Context(), previewProvider, project.Name)
+			if err != nil {
+				return err
 			}
 
 			// default to development mode if not specified; TODO: when mode is not specified, show an interactive prompt