kratactl: rework to separate commands

crates/kratactl/src/cli/list.rs

@@ -0,0 +1,70 @@
+use anyhow::Result;
+use clap::Parser;
+use krata::{
+    common::guest_image_spec::Image,
+    control::{control_service_client::ControlServiceClient, ListGuestsRequest},
+};
+
+use tonic::{transport::Channel, Request};
+
+use crate::events::EventStream;
+
+use super::pretty::guest_state_text;
+
+#[derive(Parser)]
+pub struct ListCommand {}
+
+impl ListCommand {
+    pub async fn run(
+        self,
+        mut client: ControlServiceClient<Channel>,
+        _events: EventStream,
+    ) -> Result<()> {
+        let response = client
+            .list_guests(Request::new(ListGuestsRequest {}))
+            .await?
+            .into_inner();
+        let mut table = cli_tables::Table::new();
+        let header = vec!["name", "uuid", "state", "ipv4", "ipv6", "image"];
+        table.push_row(&header)?;
+        for guest in response.guests {
+            let ipv4 = guest
+                .network
+                .as_ref()
+                .map(|x| x.ipv4.as_str())
+                .unwrap_or("unknown");
+            let ipv6 = guest
+                .network
+                .as_ref()
+                .map(|x| x.ipv6.as_str())
+                .unwrap_or("unknown");
+            let Some(spec) = guest.spec else {
+                continue;
+            };
+            let image = spec
+                .image
+                .map(|x| {
+                    x.image
+                        .map(|y| match y {
+                            Image::Oci(oci) => oci.image,
+                        })
+                        .unwrap_or("unknown".to_string())
+                })
+                .unwrap_or("unknown".to_string());
+            table.push_row_string(&vec![
+                spec.name,
+                guest.id,
+                format!("{}", guest_state_text(guest.state.unwrap_or_default())),
+                ipv4.to_string(),
+                ipv6.to_string(),
+                image,
+            ])?;
+        }
+        if table.num_records() == 1 {
+            println!("no guests have been launched");
+        } else {
+            println!("{}", table.to_string());
+        }
+        Ok(())
+    }
+}