Add proboctl webhook commands

Add CRUD commands for webhook subscriptions and a command
to list webhook events.

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/cmd/webhook/update/update.go

@@ -0,0 +1,134 @@
+// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package update
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"go.probo.inc/probo/pkg/cli/api"
+	"go.probo.inc/probo/pkg/cmd/cmdutil"
+	"go.probo.inc/probo/pkg/cmd/webhook/shared"
+)
+
+const updateMutation = `
+mutation($input: UpdateWebhookSubscriptionInput!) {
+  updateWebhookSubscription(input: $input) {
+    webhookSubscription {
+      id
+      endpointUrl
+      selectedEvents
+    }
+  }
+}
+`
+
+type updateResponse struct {
+	UpdateWebhookSubscription struct {
+		WebhookSubscription struct {
+			ID             string   `json:"id"`
+			EndpointURL    string   `json:"endpointUrl"`
+			SelectedEvents []string `json:"selectedEvents"`
+		} `json:"webhookSubscription"`
+	} `json:"updateWebhookSubscription"`
+}
+
+func NewCmdUpdate(f *cmdutil.Factory) *cobra.Command {
+	var (
+		flagURL    string
+		flagEvents []string
+	)
+
+	cmd := &cobra.Command{
+		Use:   "update <id>",
+		Short: "Update a webhook subscription",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			input := map[string]any{
+				"id": args[0],
+			}
+
+			if cmd.Flags().Changed("url") {
+				input["endpointUrl"] = flagURL
+			}
+
+			if cmd.Flags().Changed("event") {
+				for _, e := range flagEvents {
+					valid := false
+					for _, v := range shared.ValidEvents {
+						if e == v {
+							valid = true
+							break
+						}
+					}
+					if !valid {
+						return fmt.Errorf("invalid --event value %q: valid values are %s", e, strings.Join(shared.ValidEvents, ", "))
+					}
+				}
+				input["selectedEvents"] = flagEvents
+			}
+
+			if len(input) == 1 {
+				return fmt.Errorf("at least one of --url or --event must be specified")
+			}
+
+			cfg, err := f.Config()
+			if err != nil {
+				return err
+			}
+
+			host, hc, err := cfg.DefaultHost()
+			if err != nil {
+				return err
+			}
+
+			client := api.NewClient(
+				host,
+				hc.Token,
+				"/api/console/v1/graphql",
+				cfg.HTTPTimeoutDuration(),
+			)
+
+			data, err := client.Do(
+				updateMutation,
+				map[string]any{"input": input},
+			)
+			if err != nil {
+				return err
+			}
+
+			var resp updateResponse
+			if err := json.Unmarshal(data, &resp); err != nil {
+				return fmt.Errorf("cannot parse response: %w", err)
+			}
+
+			w := resp.UpdateWebhookSubscription.WebhookSubscription
+			_, _ = fmt.Fprintf(
+				f.IOStreams.Out,
+				"Updated webhook subscription %s\n",
+				w.ID,
+			)
+
+			return nil
+		},
+	}
+
+	cmd.Flags().StringVar(&flagURL, "url", "", "Webhook endpoint URL")
+	cmd.Flags().StringSliceVar(&flagEvents, "event", nil, "Event types to subscribe to (replaces existing)")
+
+	return cmd
+}