Restructure printer code

showbits-thermal-printer/src/main.rs

@@ -1,4 +1,4 @@
-mod command;
+mod drawer;
 mod printer;
 mod server;
 mod util;
@@ -6,26 +6,39 @@ mod util;
 use std::path::PathBuf;
 
 use clap::Parser;
+use drawer::Drawer;
 use printer::Printer;
 use tokio::{runtime::Runtime, sync::mpsc};
 
 #[derive(Parser)]
 struct Args {
-    path: PathBuf,
+    /// Address the web server will listen at.
     addr: String,
+
+    /// Path to the printer's USB device file.
+    ///
+    /// Usually, this is located at `/dev/usb/lp0` or a similar location.
+    #[arg(long, short)]
+    printer: Option<PathBuf>,
+
+    /// Export an image of whatever is printed here.
+    #[arg(long, short)]
+    export: Option<PathBuf>,
 }
 
 fn main() -> anyhow::Result<()> {
     let args = Args::parse();
 
     let (tx, rx) = mpsc::channel(3);
-    let mut printer = Printer::new(rx, &args.path)?;
+
+    let printer = Printer::new(args.printer, args.export)?;
+    let mut drawer = Drawer::new(rx, printer);
 
     let runtime = Runtime::new()?;
     runtime.spawn(server::run(tx, args.addr));
 
     println!("Running");
-    printer.run()?;
+    drawer.run()?;
 
     Ok(())
 }