fix: Pass launch options to Steam (#392)

Relying on a file to be parsed in time is unreliably, and if the file is open while we delete it we may run into locking problems.
Downside is that this gives a fugly prompt

src-tauri/src/main.rs

@@ -453,10 +453,6 @@ async fn get_available_northstar_versions() -> Result<Vec<NorthstarThunderstoreR
     Ok(releases)
 }
 
-// The remaining below was originally in `lib.rs`.
-// As this was causing issues it was moved into `main.rs` until being later moved into dedicated modules
-use std::{fs, path::Path};
-
 use anyhow::Result;
 
 pub mod constants;
@@ -579,43 +575,8 @@ fn launch_northstar_steam(
         return Err("Couldn't access Titanfall2 directory".to_string());
     }
 
-    let run_northstar = "run_northstar.txt";
-    let run_northstar_bak = "run_northstar.txt.bak";
-
-    if Path::new(run_northstar).exists() {
-        // rename should ovewrite existing files
-        fs::rename(run_northstar, run_northstar_bak).unwrap();
-    }
-
-    // Passing arguments gives users a prompt, so we use run_northstar.txt
-    fs::write(run_northstar, b"1").unwrap();
-
-    let retval = match open::that(format!("steam://run/{}/", TITANFALL2_STEAM_ID)) {
+    match open::that(format!("steam://run/{}//--northstar/", TITANFALL2_STEAM_ID)) {
         Ok(()) => Ok("Started game".to_string()),
         Err(_err) => Err("Failed to launch Titanfall 2 via Steam".to_string()),
-    };
-
-    let is_err = retval.is_err();
-
-    // Handle the rest in the backround
-    tauri::async_runtime::spawn(async move {
-        // Starting the EA app and Titanfall might take a good minute or three
-        let mut wait_countdown = 60 * 3;
-        while wait_countdown > 0 && !util::check_northstar_running() && !is_err {
-            sleep(Duration::from_millis(1000)).await;
-            wait_countdown -= 1;
-        }
-
-        // Northstar may be running, but it may not have loaded the file yet
-        sleep(Duration::from_millis(2000)).await;
-
-        // intentionally ignore Result
-        let _ = fs::remove_file(run_northstar);
-
-        if Path::new(run_northstar_bak).exists() {
-            fs::rename(run_northstar_bak, run_northstar).unwrap();
-        }
-    });
-
-    retval
+    }
 }