code cleanup + add CLI bin

src/bin/cli.rs

@@ -0,0 +1,53 @@
+use clap::{Parser, Subcommand};
+
+#[derive(Parser)]
+pub struct PowerCommand {
+    index: usize,
+    #[command(subcommand)]
+    state: power::types::PowerState,
+}
+
+#[derive(Subcommand)]
+pub enum Commands {
+    Monitor,
+    Set(PowerCommand),
+}
+
+impl Commands {
+    pub async fn execute(self, config_file: &str) {
+        let s = power::system::System::new_from_file(config_file).unwrap();
+
+        let handle = match self {
+            Self::Monitor => tokio::spawn(async move {
+                s.try_get_power().await.unwrap();
+            }),
+            Self::Set(command) => {
+                // let c = Controller::new_from_file(config_file).unwrap();
+                tokio::spawn(async move {
+                    s.try_set_power(command.index, command.state).await.unwrap();
+                })
+            }
+        };
+        handle.await.unwrap();
+    }
+}
+
+#[derive(Parser)]
+pub struct Cli {
+    #[arg(short, long)]
+    config_file: String,
+    #[command(subcommand)]
+    command: Commands,
+}
+
+impl Cli {
+    pub async fn execute(self) {
+        self.command.execute(&self.config_file).await;
+    }
+}
+
+#[tokio::main]
+async fn main() {
+    let cli = Cli::parse();
+    cli.execute().await;
+}