import re

with open("src/app/mod.rs", "r") as f:
    text = f.read()

# 1. Add to AppMessage
text = text.replace(
    "    OutputDeviceSelected(AudioDevice),\n    EventOccurred(Event),",
    "    OutputDeviceSelected(AudioDevice),\n    NoiseGateChanged(f32),\n    EventOccurred(Event),"
)

# 2. Add to AppState (already has config, so we can just read from config.noise_gate_threshold, but state needs it too if we don't want to use state.config everywhere)
# Let's just use state.config.noise_gate_threshold

# 3. Add to update() match
update_old = """        AppMessage::OutputDeviceSelected(dev) => {
            state.config.output_device = dev.name.clone();
            state.config.save();
            state.selected_output = Some(dev);
        }"""
update_new = """        AppMessage::OutputDeviceSelected(dev) => {
            state.config.output_device = dev.name.clone();
            state.config.save();
            state.selected_output = Some(dev);
        }
        AppMessage::NoiseGateChanged(val) => {
            state.config.noise_gate_threshold = val;
            state.config.save();
            let _ = state.controller.send(CoreCommand::SetNoiseGateThreshold(val));
        }"""
text = text.replace(update_old, update_new)

# 4. We also need to send the initial noise gate value to the controller on Join/Create, 
# but wait! CoreController receives it async. Maybe we send it right after controller is created?
# Or just in AppState::default() we can't send because it's async? No, controller.send() is async? Actually it's non-blocking channel send.
# Let's just add it to Join message or send it when RoomJoined occurs.
# Wait, let's just send it when creating the controller? No, `state.controller.send()` returns Result, it's non-blocking.
default_old = """        let controller = Arc::new(CoreController::new(ui_tx));
        let _ = UI_RX.set(Mutex::new(Some(ui_rx)));

        let config = AppConfig::load();"""
default_new = """        let controller = Arc::new(CoreController::new(ui_tx));
        let _ = UI_RX.set(Mutex::new(Some(ui_rx)));

        let config = AppConfig::load();
        let _ = controller.send(CoreCommand::SetNoiseGateThreshold(config.noise_gate_threshold));"""
text = text.replace(default_old, default_new)

# 5. Add slider to view_settings
settings_old = """                ].spacing(10),
                vertical_space(30.0),
                button("""

settings_new = """                ].spacing(10),
                vertical_space(20.0),
                column![
                    text(&format!("Mic Sensitivity (Noise Gate): {:.1}%", state.config.noise_gate_threshold * 100.0)).size(14).color(color_subtext),
                    slider(0.0..=0.1, state.config.noise_gate_threshold, AppMessage::NoiseGateChanged)
                ].spacing(10).width(iced::Length::Fixed(320.0)),
                vertical_space(30.0),
                button("""
text = text.replace(settings_old, settings_new)

with open("src/app/mod.rs", "w") as f:
    f.write(text)