Replace setup CLI stub with iced-based wizard

Lets the user paste an installer URL or local .exe path, downloads to
a temp file if needed, and runs the installer via umu-run with the
launcher's prefix, gameid, and proton path wired up. On completion,
checks for the expected exe and reports next steps.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Cargo.toml

@@ -35,3 +35,6 @@ ksni = "0.2"
 
 # HTTP for GE-Proton GitHub releases API
 reqwest = { version = "0.12", features = ["blocking", "json"] }
+
+# GUI for the setup wizard
+iced = "0.13"

README.md

@@ -26,8 +26,9 @@ Launch / Kill entries. Users can add or remove launchers in `config edit`.
   prefix / exe / ownership / running state.
 - `service` — installs a `systemd --user` unit so the tray autostarts with
   the graphical session.
-- `setup` — prints the manual setup steps for a launcher (a graphical
-  wizard via iced is planned).
+- `setup` — graphical wizard (iced) that downloads an installer URL or
+  accepts a local `.exe`, then runs it via `umu-run` in the launcher's
+  Wine prefix.
 
 ## Install
 
@@ -57,7 +58,7 @@ umutray service install
 | `umutray launch <name>`          | Launch a specific launcher (e.g. `umutray launch epic`) |
 | `umutray kill [<name>]`          | Kill one launcher, or all if no name is given           |
 | `umutray diagnose [<name>]`      | Health checks (one launcher or all)                     |
-| `umutray setup <name>`           | Print setup steps for a launcher                        |
+| `umutray setup <name>`           | Open the graphical setup wizard for a launcher          |
 | `umutray update-proton --latest` | Install newest GE-Proton release                        |
 | `umutray update-proton --list`   | Show recent releases without installing                 |
 | `umutray update-proton`          | Interactive version picker                              |

src/setup.rs

@@ -1,60 +1,246 @@
 use crate::config::{Config, Launcher};
 use anyhow::Result;
+use iced::futures::channel::oneshot;
+use iced::widget::{button, column, container, row, text, text_input};
+use iced::{Element, Task, Theme};
+use std::path::{Path, PathBuf};
+use std::process::Command;
+
+#[derive(Debug, Clone)]
+pub enum Message {
+    SourceChanged(String),
+    PreparePressed,
+    PrepareDone(Result<PathBuf, String>),
+    InstallPressed,
+    InstallDone(Result<i32, String>),
+}
+
+#[derive(Debug, Clone)]
+enum Stage {
+    Idle,
+    Busy,
+    Ready,
+    Installing,
+    Finished,
+}
+
+struct State {
+    config: Config,
+    launcher: Launcher,
+    source: String,
+    installer: Option<PathBuf>,
+    stage: Stage,
+    status: String,
+}
+
+impl State {
+    fn new(config: Config, launcher: Launcher) -> Self {
+        let status = format!(
+            "Paste an installer URL or a local .exe path. It will install into {}.",
+            launcher.prefix_dir.display()
+        );
+        Self {
+            config,
+            launcher,
+            source: String::new(),
+            installer: None,
+            stage: Stage::Idle,
+            status,
+        }
+    }
+}
+
+fn update(state: &mut State, message: Message) -> Task<Message> {
+    match message {
+        Message::SourceChanged(s) => {
+            state.source = s;
+            Task::none()
+        }
+        Message::PreparePressed => {
+            let src = state.source.trim().to_string();
+            if src.is_empty() {
+                state.status = "Enter an installer URL or local path first.".into();
+                return Task::none();
+            }
+            // Local file on disk?
+            let path = PathBuf::from(&src);
+            if path.is_file() {
+                state.installer = Some(path.clone());
+                state.stage = Stage::Ready;
+                state.status = format!("Ready: {}", path.display());
+                return Task::none();
+            }
+            if !src.starts_with("http://") && !src.starts_with("https://") {
+                state.status = format!("Not a local file and not an http(s) URL: {src}");
+                return Task::none();
+            }
+            state.stage = Stage::Busy;
+            state.status = format!("Downloading {src} …");
+            let name = state.launcher.name.clone();
+            Task::perform(
+                blocking(move || download_blocking(&src, &name)),
+                Message::PrepareDone,
+            )
+        }
+        Message::PrepareDone(Ok(path)) => {
+            state.installer = Some(path.clone());
+            state.stage = Stage::Ready;
+            state.status = format!("Downloaded to {}", path.display());
+            Task::none()
+        }
+        Message::PrepareDone(Err(e)) => {
+            state.stage = Stage::Idle;
+            state.status = format!("Download failed: {e}");
+            Task::none()
+        }
+        Message::InstallPressed => {
+            let Some(installer) = state.installer.clone() else {
+                return Task::none();
+            };
+            state.stage = Stage::Installing;
+            state.status =
+                "Running installer via umu-run (this may take several minutes)…".into();
+            let config = state.config.clone();
+            let launcher = state.launcher.clone();
+            Task::perform(
+                blocking(move || run_installer(&config, &launcher, &installer)),
+                Message::InstallDone,
+            )
+        }
+        Message::InstallDone(res) => {
+            state.stage = Stage::Finished;
+            let exe = state.launcher.full_exe_path();
+            state.status = match res {
+                Ok(code) if exe.exists() => format!(
+                    "✓ Installer finished (umu exit {code}); {} is present.\n\
+                     You can now run: umutray launch {}",
+                    exe.display(),
+                    state.launcher.name,
+                ),
+                Ok(code) => format!(
+                    "umu-run exited {code} but the expected exe is not at {}.\n\
+                     Check the installer's destination path, or edit exe_path in config.",
+                    exe.display(),
+                ),
+                Err(e) => format!("Install failed: {e}"),
+            };
+            Task::none()
+        }
+    }
+}
+
+fn view(state: &State) -> Element<'_, Message> {
+    let header = text(format!("Setup: {}", state.launcher.display)).size(24);
+    let prefix = text(format!(
+        "Prefix:   {}",
+        state.launcher.prefix_dir.display()
+    ))
+    .size(13);
+    let expected = text(format!(
+        "Expected: {}",
+        state.launcher.full_exe_path().display()
+    ))
+    .size(13);
+
+    let input = text_input("https://… or /path/to/installer.exe", &state.source)
+        .on_input(Message::SourceChanged)
+        .padding(8);
+
+    let prepare_enabled =
+        matches!(state.stage, Stage::Idle | Stage::Ready | Stage::Finished);
+    let install_enabled = matches!(state.stage, Stage::Ready);
+
+    let prepare_btn = button(text("Download / Prepare"))
+        .on_press_maybe(prepare_enabled.then_some(Message::PreparePressed));
+    let install_btn = button(text("Run installer"))
+        .on_press_maybe(install_enabled.then_some(Message::InstallPressed));
+
+    let status = text(state.status.clone());
+
+    let body = column![
+        header,
+        prefix,
+        expected,
+        input,
+        row![prepare_btn, install_btn].spacing(12),
+        status,
+    ]
+    .spacing(12)
+    .padding(20);
+
+    container(body).into()
+}
 
-/// Print manual setup steps for a launcher.
-///
-/// This is a stub until the iced-based setup wizard lands. It walks the
-/// user through creating the prefix directory, obtaining the installer,
-/// and running it through umu.
 pub fn run(config: &Config, launcher: &Launcher) -> Result<()> {
+    let config = config.clone();
+    let launcher = launcher.clone();
+    let title = format!("umutray setup — {}", launcher.display);
+
+    iced::application(move |_: &State| title.clone(), update, view)
+        .theme(|_| Theme::Dark)
+        .run_with(move || (State::new(config.clone(), launcher.clone()), Task::none()))
+        .map_err(|e| anyhow::anyhow!("iced: {e}"))
+}
+
+/// Run a blocking closure on a helper thread and await the result
+/// via a oneshot channel. Avoids pulling tokio in as a direct dep.
+async fn blocking<T, F>(f: F) -> T
+where
+    T: Send + 'static,
+    F: FnOnce() -> T + Send + 'static,
+{
+    let (tx, rx) = oneshot::channel();
+    std::thread::spawn(move || {
+        let _ = tx.send(f());
+    });
+    rx.await.expect("setup helper thread panicked")
+}
+
+fn download_blocking(url: &str, name: &str) -> Result<PathBuf, String> {
+    let client = reqwest::blocking::Client::builder()
+        .user_agent("umutray/0.1")
+        .build()
+        .map_err(|e| e.to_string())?;
+    let mut resp = client
+        .get(url)
+        .send()
+        .map_err(|e| e.to_string())?
+        .error_for_status()
+        .map_err(|e| e.to_string())?;
+    let base = url.split('?').next().unwrap_or(url);
+    let candidate = base.rsplit('/').next().filter(|s| s.contains('.')).unwrap_or("");
+    let filename = if candidate.is_empty() {
+        format!("{name}-installer.exe")
+    } else {
+        candidate.to_string()
+    };
+    let tmp = std::env::temp_dir().join(filename);
+    let mut f = std::fs::File::create(&tmp).map_err(|e| e.to_string())?;
+    std::io::copy(&mut resp, &mut f).map_err(|e| e.to_string())?;
+    Ok(tmp)
+}
+
+fn run_installer(
+    config: &Config,
+    launcher: &Launcher,
+    installer: &Path,
+) -> Result<i32, String> {
+    std::fs::create_dir_all(&launcher.prefix_dir).map_err(|e| e.to_string())?;
     let version = launcher
         .proton_version
         .as_deref()
         .unwrap_or(&config.proton_version);
-    let proton_path: String = if version == "GE-Proton" {
-        version.to_string()
+    let proton_path: std::ffi::OsString = if version == "GE-Proton" {
+        version.to_string().into()
     } else {
-        config
-            .proton_compat_dir
-            .join(version)
-            .display()
-            .to_string()
+        config.proton_compat_dir.join(version).into_os_string()
     };
-
-    println!("Setup steps for \x1b[1m{}\x1b[0m ({})", launcher.display, launcher.name);
-    println!();
-    println!("1. Create the prefix directory:");
-    println!("     mkdir -p {}", launcher.prefix_dir.display());
-    println!();
-    println!("2. Obtain the Windows installer for {}.", launcher.display);
-    if let Some(url) = &launcher.installer_url {
-        println!("     (configured source: {url})");
-    } else {
-        println!(
-            "     No installer URL is configured for '{}'.",
-            launcher.name
-        );
-        println!("     Download the installer from the vendor and save it locally.");
-    }
-    println!();
-    println!("3. Run the installer under umu (replace INSTALLER.EXE with the path):");
-    println!(
-        "     WINEPREFIX={} \\",
-        launcher.prefix_dir.display()
-    );
-    println!("       GAMEID={} \\", launcher.gameid);
-    println!("       PROTONPATH={proton_path} \\");
-    println!("       umu-run INSTALLER.EXE");
-    println!();
-    println!("4. After the installer finishes, verify it placed:");
-    println!("     {}", launcher.full_exe_path().display());
-    println!();
-    println!("5. Then: umutray launch {}", launcher.name);
-    println!();
-    println!(
-        "(A graphical setup wizard via iced is planned — this stub prints the manual\n \
-         steps in the meantime.)"
-    );
-
-    Ok(())
+    let status = Command::new("umu-run")
+        .env("WINEPREFIX", &launcher.prefix_dir)
+        .env("GAMEID", &launcher.gameid)
+        .env("PROTONPATH", &proton_path)
+        .arg(installer)
+        .status()
+        .map_err(|e| e.to_string())?;
+    Ok(status.code().unwrap_or(-1))
 }