Merge pull request #11 from cjfranko/daemon

Daemon


merging this branch in, 
we are aware that the time is currently off

Cargo.toml

@@ -16,4 +16,9 @@ get_if_addrs = "0.5"
 actix-web = "4"
 actix-files = "0.6"
 tokio = { version = "1", features = ["full"] }
+clap = { version = "4.4", features = ["derive"] }
+log = "0.4"
+env_logger = "0.11"
+daemonize = "0.5.0"
+
 

setup.sh

@@ -1,125 +1,59 @@
 #!/bin/bash
 set -e
 
-echo ""
+echo "--- TimeTurner Setup ---"
-echo "─────────────────────────────────────────────"
-echo "  Welcome to the NTP TimeTurner Installer"
-echo "─────────────────────────────────────────────"
-echo ""
-echo "\"It's a very complicated piece of magic...\" – Hermione Granger"
-echo "Preparing the Ministry-grade temporal interface..."
-echo ""
 
-# ---------------------------------------------------------
+# 1. Build the release binary
-# Step 1: Update and upgrade packages
+echo "📦 Building release binary with Cargo..."
-# ---------------------------------------------------------
+if ! command -v cargo &> /dev/null
-echo "Step 1: Updating package lists and upgrading..."
+then
-sudo apt update && sudo apt upgrade -y
+    echo "❌ Cargo is not installed. Please install Rust and Cargo first."
-
+    echo "Visit https://rustup.rs/ for instructions."
-# ---------------------------------------------------------
+    exit 1
-# Step 2: Install core tools and Python dependencies
-# ---------------------------------------------------------
-echo "Step 2: Installing required tools..."
-sudo apt install -y git curl python3 python3-pip build-essential cmake \
-  python3-serial libusb-dev
-
-# ---------------------------------------------------------
-# Step 2.5: Install teensy-loader-cli from source
-# ---------------------------------------------------------
-echo "Installing teensy-loader-cli manually from source..."
-cd "$HOME"
-if [ ! -d teensy_loader_cli ]; then
-  git clone https://github.com/PaulStoffregen/teensy_loader_cli.git
 fi
-cd teensy_loader_cli
+cargo build --release
-make
+echo "✅ Build complete."
-sudo install -m 755 teensy_loader_cli /usr/local/bin/teensy-loader-cli
 
-echo "Verifying teensy-loader-cli..."
+# 2. Create installation directories
-teensy-loader-cli --version || echo "⚠️ teensy-loader-cli failed to install properly"
+INSTALL_DIR="/opt/timeturner"
+BIN_DIR="/usr/local/bin"
+echo "🔧 Creating directories..."
+sudo mkdir -p $INSTALL_DIR
+echo "✅ Directory $INSTALL_DIR created."
 
-# ---------------------------------------------------------
+# 3. Install binary
-# Step 2.6: Install udev rules for Teensy
+echo "🚀 Installing timeturner binary..."
-# ---------------------------------------------------------
+sudo cp target/release/ntp_timeturner $INSTALL_DIR/timeturner
-echo "Installing udev rules for Teensy access..."
+sudo ln -sf $INSTALL_DIR/timeturner $BIN_DIR/timeturner
-cd "$HOME"
+echo "✅ Binary installed to $INSTALL_DIR and linked to $BIN_DIR."
-wget -O 49-teensy.rules https://www.pjrc.com/teensy/49-teensy.rules
-sudo cp 49-teensy.rules /etc/udev/rules.d/
-sudo udevadm control --reload-rules
-sudo udevadm trigger
-echo "✅ Teensy udev rules installed. Reboot required to take full effect."
 
-# ---------------------------------------------------------
+# 4. Install systemd service file
-# Step 3: Install Arduino CLI manually (latest version)
+if [[ "$(uname)" == "Linux" ]]; then
-# ---------------------------------------------------------
+    echo "⚙️  Installing systemd service for Linux..."
-echo "Step 3: Downloading and installing arduino-cli..."
+    sudo cp timeturner.service /etc/systemd/system/
-cd "$HOME"
+    sudo systemctl daemon-reload
-curl -fsSL https://downloads.arduino.cc/arduino-cli/arduino-cli_latest_Linux_ARM64.tar.gz -o arduino-cli.tar.gz
+    sudo systemctl enable timeturner.service
-tar -xzf arduino-cli.tar.gz
+    echo "✅ Systemd service installed and enabled."
-sudo mv arduino-cli /usr/local/bin/
-rm arduino-cli.tar.gz
-
-echo "Verifying arduino-cli install..."
-arduino-cli version || echo "⚠️ arduino-cli install failed or not found in PATH"
-
-# ---------------------------------------------------------
-# Step 4: Download and apply splash screen
-# ---------------------------------------------------------
-echo "Step 4: Downloading and applying splash screen..."
-cd "$HOME"
-wget -O splash.png https://raw.githubusercontent.com/cjfranko/NTP-Timeturner/master/splash.png
-
-if [ -f splash.png ]; then
-  sudo cp splash.png /usr/share/plymouth/themes/pix/splash.png
-  sudo chmod 644 /usr/share/plymouth/themes/pix/splash.png
-  echo "✅ Splash screen applied."
 else
-  echo "⚠️ splash.png not found — skipping."
+    echo "⚠️  Skipping systemd service installation on non-Linux OS."
 fi
 
-# ---------------------------------------------------------
-# Step 4.5: Configure Plymouth to stay on screen longer
-# ---------------------------------------------------------
-echo "Step 4.5: Configuring splash screen timing..."
-
-# Ensure 'quiet splash' is in /boot/cmdline.txt
-sudo sed -i 's/\(\s*\)console=tty1/\1quiet splash console=tty1/' /boot/cmdline.txt
-echo "✅ Set 'quiet splash' in /boot/cmdline.txt"
-
-# Update Plymouth config
-sudo sed -i 's/^Theme=.*/Theme=pix/' /etc/plymouth/plymouthd.conf
-sudo sed -i 's/^ShowDelay=.*/ShowDelay=0/' /etc/plymouth/plymouthd.conf || echo "ShowDelay=0" | sudo tee -a /etc/plymouth/plymouthd.conf
-sudo sed -i 's/^DeviceTimeout=.*/DeviceTimeout=10/' /etc/plymouth/plymouthd.conf || echo "DeviceTimeout=10" | sudo tee -a /etc/plymouth/plymouthd.conf
-sudo sed -i 's/^DisableFadeIn=.*/DisableFadeIn=true/' /etc/plymouth/plymouthd.conf || echo "DisableFadeIn=true" | sudo tee -a /etc/plymouth/plymouthd.conf
-echo "✅ Updated /etc/plymouth/plymouthd.conf"
-
-# Create autostart delay to keep splash visible until desktop is ready
-mkdir -p "$HOME/.config/autostart"
-cat << EOF > "$HOME/.config/autostart/delayed-plymouth-exit.desktop"
-[Desktop Entry]
-Type=Application
-Name=Delayed Plymouth Exit
-Exec=/bin/sh -c "sleep 3 && /usr/bin/plymouth quit"
-X-GNOME-Autostart-enabled=true
-EOF
-echo "✅ Splash screen will exit 3 seconds after desktop starts"
-
-# ---------------------------------------------------------
-# Step 5: Download Teensy firmware
-# ---------------------------------------------------------
-echo "Step 5: Downloading Teensy firmware..."
-cd "$HOME"
-wget -O ltc_audiohat_lock.ino.hex https://raw.githubusercontent.com/cjfranko/NTP-Timeturner/master/firmware/ltc_audiohat_lock.ino.hex
-
-# ---------------------------------------------------------
-# Final Message & Reboot
-# ---------------------------------------------------------
 echo ""
-echo "─────────────────────────────────────────────"
+echo "--- Setup Complete ---"
-echo "  Setup Complete — Rebooting in 15 seconds..."
+echo "The TimeTurner daemon is now installed."
-echo "─────────────────────────────────────────────"
+echo "The working directory is $INSTALL_DIR."
-echo "NOTE: Teensy firmware ready in $HOME, but not auto-flashed."
+echo "A default 'config.yml' will be created there on first run."
-echo "Boot splash will remain until desktop loads. "
+echo ""
+if [[ "$(uname)" == "Linux" ]]; then
+    echo "To start the service, run:"
+    echo "  sudo systemctl start timeturner.service"
+    echo ""
+    echo "To view live logs, run:"
+    echo "  journalctl -u timeturner.service -f"
+    echo ""
+fi
+echo "To run the interactive TUI instead, simply run from the project directory:"
+echo "  cargo run"
+echo "Or from anywhere after installation:"
+echo "  timeturner"
 echo ""
-sleep 15
-sudo reboot

src/api.rs

@@ -8,8 +8,8 @@ use serde_json;
 use std::sync::{Arc, Mutex};
 
 use crate::config::{self, Config};
-use crate::sync_logic::LtcState;
+use crate::sync_logic::{self, LtcState};
-use crate::ui;
+use crate::system;
 
 // Data structure for the main status response
 #[derive(Serialize, Deserialize)]
@@ -64,11 +64,11 @@ async fn get_status(data: web::Data<AppState>) -> impl Responder {
         delta_frames = ((avg_delta as f64 / frame_ms).round()) as i64;
     }
 
-    let sync_status = ui::get_sync_status(avg_delta, &config).to_string();
+    let sync_status = sync_logic::get_sync_status(avg_delta, &config);
-    let jitter_status = ui::get_jitter_status(state.average_jitter()).to_string();
+    let jitter_status = sync_logic::get_jitter_status(state.average_jitter());
     let lock_ratio = state.lock_ratio();
 
-    let ntp_active = ui::ntp_service_active();
+    let ntp_active = system::ntp_service_active();
     let interfaces = get_if_addrs()
         .unwrap_or_default()
         .into_iter()
@@ -83,8 +83,8 @@ async fn get_status(data: web::Data<AppState>) -> impl Responder {
         system_clock,
         timecode_delta_ms: avg_delta,
         timecode_delta_frames: delta_frames,
-        sync_status,
+        sync_status: sync_status.to_string(),
-        jitter_status,
+        jitter_status: jitter_status.to_string(),
         lock_ratio,
         ntp_active,
         interfaces,
@@ -97,7 +97,7 @@ async fn manual_sync(data: web::Data<AppState>) -> impl Responder {
     let state = data.ltc_state.lock().unwrap();
     let config = data.config.lock().unwrap();
     if let Some(frame) = &state.latest {
-        if ui::trigger_sync(frame, &config).is_ok() {
+        if system::trigger_sync(frame, &config).is_ok() {
             HttpResponse::Ok().json(serde_json::json!({ "status": "success", "message": "Sync command issued." }))
         } else {
             HttpResponse::InternalServerError().json(serde_json::json!({ "status": "error", "message": "Sync command failed." }))

src/main.rs

@@ -2,24 +2,41 @@
 
 mod api;
 mod config;
-mod sync_logic;
 mod serial_input;
+mod sync_logic;
+mod system;
 mod ui;
 
 use crate::api::start_api_server;
 use crate::config::watch_config;
-use crate::sync_logic::LtcState;
 use crate::serial_input::start_serial_thread;
+use crate::sync_logic::LtcState;
 use crate::ui::start_ui;
+use clap::Parser;
+use daemonize::Daemonize;
+use env_logger;
 
 use std::{
     fs,
     path::Path,
-    sync::{Arc, Mutex, mpsc},
+    sync::{mpsc, Arc, Mutex},
     thread,
 };
 use tokio::task::{self, LocalSet};
 
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+struct Args {
+    #[command(subcommand)]
+    command: Option<Command>,
+}
+
+#[derive(clap::Subcommand, Debug)]
+enum Command {
+    /// Run as a background daemon providing a web UI.
+    Daemon,
+}
+
 /// Default config content, embedded in the binary.
 const DEFAULT_CONFIG: &str = r#"
 # Hardware offset in milliseconds for correcting capture latency.
@@ -46,27 +63,47 @@ fn ensure_config() {
 
 #[tokio::main(flavor = "current_thread")]
 async fn main() {
-    // 🔄 Ensure there's always a config.json present
+    let args = Args::parse();
+
+    if let Some(Command::Daemon) = &args.command {
+        println!("🚀 Starting daemon...");
+
+        // Create files for stdout and stderr in the current directory
+        let stdout = fs::File::create("daemon.out").expect("Could not create daemon.out");
+        let stderr = fs::File::create("daemon.err").expect("Could not create daemon.err");
+
+        let daemonize = Daemonize::new()
+            .pid_file("ntp_timeturner.pid") // Create a PID file
+            .working_directory(".") // Keep the same working directory
+            .stdout(stdout)
+            .stderr(stderr);
+
+        match daemonize.start() {
+            Ok(_) => { /* Process is now daemonized */ }
+            Err(e) => {
+                eprintln!("Error daemonizing: {}", e);
+                return; // Exit if daemonization fails
+            }
+        }
+    }
+
+    // 🔄 Ensure there's always a config.yml present
     ensure_config();
 
     // 1️⃣ Start watching config.yml for changes
     let config = watch_config("config.yml");
-    println!("🔧 Watching config.yml...");
 
     // 2️⃣ Channel for raw LTC frames
     let (tx, rx) = mpsc::channel();
-    println!("✅ Channel created");
 
     // 3️⃣ Shared state for UI and serial reader
     let ltc_state = Arc::new(Mutex::new(LtcState::new()));
-    println!("✅ State initialised");
 
-    // 4️⃣ Spawn the serial reader thread (no offset here)
+    // 4️⃣ Spawn the serial reader thread
     {
-        let tx_clone    = tx.clone();
+        let tx_clone = tx.clone();
         let state_clone = ltc_state.clone();
         thread::spawn(move || {
-            println!("🚀 Serial thread launched");
             start_serial_thread(
                 "/dev/ttyACM0",
                 115200,
@@ -77,18 +114,26 @@ async fn main() {
         });
     }
 
-    // 5️⃣ Spawn the UI renderer thread, passing the live config Arc
+    // 5️⃣ Spawn UI or setup daemon logging
-    {
+    if args.command.is_none() {
-        let ui_state     = ltc_state.clone();
+        println!("🔧 Watching config.yml...");
+        println!("🚀 Serial thread launched");
+        println!("🖥️ UI thread launched");
+        let ui_state = ltc_state.clone();
         let config_clone = config.clone();
-        let port         = "/dev/ttyACM0".to_string();
+        let port = "/dev/ttyACM0".to_string();
         thread::spawn(move || {
-            println!("🖥️ UI thread launched");
             start_ui(ui_state, port, config_clone);
         });
+    } else {
+        // In daemon mode, we initialize env_logger.
+        // This will log to stdout, and the systemd service will capture it.
+        // The RUST_LOG env var controls the log level (e.g., RUST_LOG=info).
+        env_logger::init();
+        log::info!("🚀 Starting TimeTurner daemon...");
     }
 
-    // 6️⃣ Set up a LocalSet for the API server.
+    // 6️⃣ Set up a LocalSet for the API server and main loop
     let local = LocalSet::new();
     local
         .run_until(async move {
@@ -103,15 +148,20 @@ async fn main() {
                 });
             }
 
-            // 8️⃣ Keep main thread alive by consuming LTC frames in a blocking task
+            // 8️⃣ Keep main thread alive
-            println!("📡 Main thread entering loop...");
+            if args.command.is_some() {
-            let _ = task::spawn_blocking(move || {
+                // In daemon mode, wait forever.
-                // This will block the thread, but it's a blocking-safe thread.
+                std::future::pending::<()>().await;
-                for _frame in rx {
+            } else {
-                    // no-op
+                // In TUI mode, block on the channel.
-                }
+                println!("📡 Main thread entering loop...");
-            })
+                let _ = task::spawn_blocking(move || {
-            .await;
+                    for _frame in rx {
+                        // no-op
+                    }
+                })
+                .await;
+            }
         })
         .await;
 }

src/sync_logic.rs

@@ -1,4 +1,5 @@
-use chrono::{DateTime, Local, Timelike, Utc};
+use crate::config::Config;
+use chrono::{DateTime, Local, Timelike, Utc};
 use regex::Captures;
 use std::collections::VecDeque;
 
@@ -170,10 +171,33 @@ impl LtcState {
         &self.last_match_status
     }
 }
+
+pub fn get_sync_status(delta_ms: i64, config: &Config) -> &'static str {
+    if config.timeturner_offset.is_active() {
+        "TIMETURNING"
+    } else if delta_ms.abs() <= 8 {
+        "IN SYNC"
+    } else if delta_ms > 10 {
+        "CLOCK AHEAD"
+    } else {
+        "CLOCK BEHIND"
+    }
+}
+
+pub fn get_jitter_status(jitter_ms: i64) -> &'static str {
+    if jitter_ms.abs() < 10 {
+        "GOOD"
+    } else if jitter_ms.abs() < 40 {
+        "AVERAGE"
+    } else {
+        "BAD"
+    }
+}
 // This module provides the logic for handling LTC (Linear Timecode) frames and maintaining state.
 #[cfg(test)]
 mod tests {
     use super::*;
+    use crate::config::{Config, TimeturnerOffset};
     use chrono::{Local, Utc};
 
     fn get_test_frame(status: &str, h: u32, m: u32, s: u32) -> LtcFrame {
@@ -332,4 +356,34 @@ mod tests {
             "Median of even numbers should be correct"
         );
     }
+
+    #[test]
+    fn test_get_sync_status() {
+        let mut config = Config::default();
+        assert_eq!(get_sync_status(0, &config), "IN SYNC");
+        assert_eq!(get_sync_status(8, &config), "IN SYNC");
+        assert_eq!(get_sync_status(-8, &config), "IN SYNC");
+        assert_eq!(get_sync_status(9, &config), "CLOCK BEHIND");
+        assert_eq!(get_sync_status(10, &config), "CLOCK BEHIND");
+        assert_eq!(get_sync_status(11, &config), "CLOCK AHEAD");
+        assert_eq!(get_sync_status(-9, &config), "CLOCK BEHIND");
+        assert_eq!(get_sync_status(-100, &config), "CLOCK BEHIND");
+
+        // Test TIMETURNING status
+        config.timeturner_offset = TimeturnerOffset { hours: 1, minutes: 0, seconds: 0, frames: 0 };
+        assert_eq!(get_sync_status(0, &config), "TIMETURNING");
+        assert_eq!(get_sync_status(100, &config), "TIMETURNING");
+    }
+
+    #[test]
+    fn test_get_jitter_status() {
+        assert_eq!(get_jitter_status(5), "GOOD");
+        assert_eq!(get_jitter_status(-5), "GOOD");
+        assert_eq!(get_jitter_status(9), "GOOD");
+        assert_eq!(get_jitter_status(10), "AVERAGE");
+        assert_eq!(get_jitter_status(39), "AVERAGE");
+        assert_eq!(get_jitter_status(-39), "AVERAGE");
+        assert_eq!(get_jitter_status(40), "BAD");
+        assert_eq!(get_jitter_status(-40), "BAD");
+    }
 }

src/system.rs

@@ -0,0 +1,182 @@
+use crate::config::Config;
+use crate::sync_logic::LtcFrame;
+use chrono::{DateTime, Duration as ChronoDuration, Local, NaiveTime, TimeZone};
+use std::process::Command;
+
+/// Check if Chrony is active
+pub fn ntp_service_active() -> bool {
+    #[cfg(target_os = "linux")]
+    {
+        if let Ok(output) = Command::new("systemctl").args(&["is-active", "chrony"]).output() {
+            output.status.success()
+                && String::from_utf8_lossy(&output.stdout).trim() == "active"
+        } else {
+            false
+        }
+    }
+    #[cfg(not(target_os = "linux"))]
+    {
+        // systemctl is not available on non-Linux platforms.
+        false
+    }
+}
+
+/// Toggle Chrony (not used yet)
+#[allow(dead_code)]
+pub fn ntp_service_toggle(start: bool) {
+    #[cfg(target_os = "linux")]
+    {
+        let action = if start { "start" } else { "stop" };
+        let _ = Command::new("systemctl").args(&[action, "chrony"]).status();
+    }
+    #[cfg(not(target_os = "linux"))]
+    {
+        // No-op on non-Linux.
+        // The parameter is unused, but the function is dead code anyway.
+        let _ = start;
+    }
+}
+
+pub fn calculate_target_time(frame: &LtcFrame, config: &Config) -> DateTime<Local> {
+    let today_local = Local::now().date_naive();
+    let ms = ((frame.frames as f64 / frame.frame_rate) * 1000.0).round() as u32;
+    let timecode = NaiveTime::from_hms_milli_opt(frame.hours, frame.minutes, frame.seconds, ms)
+        .expect("Invalid LTC timecode");
+
+    let naive_dt = today_local.and_time(timecode);
+    let mut dt_local = Local
+        .from_local_datetime(&naive_dt)
+        .single()
+        .expect("Ambiguous or invalid local time");
+
+    // Apply timeturner offset
+    let offset = &config.timeturner_offset;
+    dt_local = dt_local
+        + ChronoDuration::hours(offset.hours)
+        + ChronoDuration::minutes(offset.minutes)
+        + ChronoDuration::seconds(offset.seconds);
+    // Frame offset needs to be converted to milliseconds
+    let frame_offset_ms = (offset.frames as f64 / frame.frame_rate * 1000.0).round() as i64;
+    dt_local + ChronoDuration::milliseconds(frame_offset_ms)
+}
+
+pub fn trigger_sync(frame: &LtcFrame, config: &Config) -> Result<String, ()> {
+    let dt_local = calculate_target_time(frame, config);
+
+    #[cfg(target_os = "linux")]
+    let (ts, success) = {
+        let ts = dt_local.format("%H:%M:%S.%3f").to_string();
+        let success = Command::new("sudo")
+            .arg("date")
+            .arg("-s")
+            .arg(&ts)
+            .status()
+            .map(|s| s.success())
+            .unwrap_or(false);
+        (ts, success)
+    };
+
+    #[cfg(target_os = "macos")]
+    let (ts, success) = {
+        // macOS `date` command format is `mmddHHMMccyy.SS`
+        let ts = dt_local.format("%m%d%H%M%y.%S").to_string();
+        let success = Command::new("sudo")
+            .arg("date")
+            .arg(&ts)
+            .status()
+            .map(|s| s.success())
+            .unwrap_or(false);
+        (ts, success)
+    };
+
+    #[cfg(not(any(target_os = "linux", target_os = "macos")))]
+    let (ts, success) = {
+        // Unsupported OS, always fail
+        let ts = dt_local.format("%H:%M:%S.%3f").to_string();
+        eprintln!("Unsupported OS for time synchronization");
+        (ts, false)
+    };
+
+    if success {
+        Ok(ts)
+    } else {
+        Err(())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::config::TimeturnerOffset;
+    use chrono::{Timelike, Utc};
+
+    // Helper to create a test frame
+    fn get_test_frame(h: u32, m: u32, s: u32, f: u32) -> LtcFrame {
+        LtcFrame {
+            status: "LOCK".to_string(),
+            hours: h,
+            minutes: m,
+            seconds: s,
+            frames: f,
+            frame_rate: 25.0,
+            timestamp: Utc::now(),
+        }
+    }
+
+    #[test]
+    fn test_ntp_service_active_on_non_linux() {
+        // On non-Linux platforms, this should always be false.
+        #[cfg(not(target_os = "linux"))]
+        assert!(!ntp_service_active());
+    }
+
+    #[test]
+    fn test_calculate_target_time_no_offset() {
+        let frame = get_test_frame(10, 20, 30, 0);
+        let config = Config::default();
+        let target_time = calculate_target_time(&frame, &config);
+
+        assert_eq!(target_time.hour(), 10);
+        assert_eq!(target_time.minute(), 20);
+        assert_eq!(target_time.second(), 30);
+    }
+
+    #[test]
+    fn test_calculate_target_time_with_positive_offset() {
+        let frame = get_test_frame(10, 20, 30, 0);
+        let mut config = Config::default();
+        config.timeturner_offset = TimeturnerOffset {
+            hours: 1,
+            minutes: 5,
+            seconds: 10,
+            frames: 12, // 12 frames at 25fps is 480ms
+        };
+
+        let target_time = calculate_target_time(&frame, &config);
+
+        assert_eq!(target_time.hour(), 11);
+        assert_eq!(target_time.minute(), 25);
+        assert_eq!(target_time.second(), 40);
+        // 480ms
+        assert_eq!(target_time.nanosecond(), 480_000_000);
+    }
+
+    #[test]
+    fn test_calculate_target_time_with_negative_offset() {
+        let frame = get_test_frame(10, 20, 30, 12); // 12 frames = 480ms
+        let mut config = Config::default();
+        config.timeturner_offset = TimeturnerOffset {
+            hours: -1,
+            minutes: -5,
+            seconds: -10,
+            frames: -12, // -480ms
+        };
+
+        let target_time = calculate_target_time(&frame, &config);
+
+        assert_eq!(target_time.hour(), 9);
+        assert_eq!(target_time.minute(), 15);
+        assert_eq!(target_time.second(), 20);
+        assert_eq!(target_time.nanosecond(), 0);
+    }
+}

src/ui.rs

@@ -1,6 +1,6 @@
 use std::{
     io::{stdout, Write},
-    process::{self, Command},
+    process::{self},
     sync::{Arc, Mutex},
     thread,
     time::{Duration, Instant},
@@ -21,108 +21,9 @@ use crossterm::{
 
 use crate::config::Config;
 use get_if_addrs::get_if_addrs;
-use crate::sync_logic::{LtcFrame, LtcState};
+use crate::sync_logic::{get_jitter_status, get_sync_status, LtcState};
+use crate::system;
 
-/// Check if Chrony is active
-pub fn ntp_service_active() -> bool {
-    if let Ok(output) = Command::new("systemctl").args(&["is-active", "chrony"]).output() {
-        output.status.success()
-            && String::from_utf8_lossy(&output.stdout).trim() == "active"
-    } else {
-        false
-    }
-}
-
-/// Toggle Chrony (not used yet)
-#[allow(dead_code)]
-fn ntp_service_toggle(start: bool) {
-    let action = if start { "start" } else { "stop" };
-    let _ = Command::new("systemctl").args(&[action, "chrony"]).status();
-}
-
-pub fn get_sync_status(delta_ms: i64, config: &Config) -> &'static str {
-    if config.timeturner_offset.is_active() {
-        "TIMETURNING"
-    } else if delta_ms.abs() <= 8 {
-        "IN SYNC"
-    } else if delta_ms > 10 {
-        "CLOCK AHEAD"
-    } else {
-        "CLOCK BEHIND"
-    }
-}
-
-pub fn get_jitter_status(jitter_ms: i64) -> &'static str {
-    if jitter_ms.abs() < 10 {
-        "GOOD"
-    } else if jitter_ms.abs() < 40 {
-        "AVERAGE"
-    } else {
-        "BAD"
-    }
-}
-
-pub fn trigger_sync(frame: &LtcFrame, config: &Config) -> Result<String, ()> {
-    let today_local = Local::now().date_naive();
-    let ms = ((frame.frames as f64 / frame.frame_rate) * 1000.0).round() as u32;
-    let timecode = NaiveTime::from_hms_milli_opt(frame.hours, frame.minutes, frame.seconds, ms)
-        .expect("Invalid LTC timecode");
-
-    let naive_dt = today_local.and_time(timecode);
-    let mut dt_local = Local
-        .from_local_datetime(&naive_dt)
-        .single()
-        .expect("Ambiguous or invalid local time");
-
-    // Apply timeturner offset
-    let offset = &config.timeturner_offset;
-    dt_local = dt_local
-        + ChronoDuration::hours(offset.hours)
-        + ChronoDuration::minutes(offset.minutes)
-        + ChronoDuration::seconds(offset.seconds);
-    // Frame offset needs to be converted to milliseconds
-    let frame_offset_ms = (offset.frames as f64 / frame.frame_rate * 1000.0).round() as i64;
-    dt_local = dt_local + ChronoDuration::milliseconds(frame_offset_ms);
-    #[cfg(target_os = "linux")]
-    let (ts, success) = {
-        let ts = dt_local.format("%H:%M:%S.%3f").to_string();
-        let success = Command::new("sudo")
-            .arg("date")
-            .arg("-s")
-            .arg(&ts)
-            .status()
-            .map(|s| s.success())
-            .unwrap_or(false);
-        (ts, success)
-    };
-
-    #[cfg(target_os = "macos")]
-    let (ts, success) = {
-        // macOS `date` command format is `mmddHHMMccyy.SS`
-        let ts = dt_local.format("%m%d%H%M%y.%S").to_string();
-        let success = Command::new("sudo")
-            .arg("date")
-            .arg(&ts)
-            .status()
-            .map(|s| s.success())
-            .unwrap_or(false);
-        (ts, success)
-    };
-
-    #[cfg(not(any(target_os = "linux", target_os = "macos")))]
-    let (ts, success) = {
-        // Unsupported OS, always fail
-        let ts = dt_local.format("%H:%M:%S.%3f").to_string();
-        eprintln!("Unsupported OS for time synchronization");
-        (ts, false)
-    };
-
-    if success {
-        Ok(ts)
-    } else {
-        Err(())
-    }
-}
 
 pub fn start_ui(
     state: Arc<Mutex<LtcState>>,
@@ -145,7 +46,7 @@ pub fn start_ui(
         let hw_offset_ms = cfg.hardware_offset_ms;
 
         // 2️⃣ Chrony + interfaces
-        let ntp_active = ntp_service_active();
+        let ntp_active = system::ntp_service_active();
         let interfaces: Vec<String> = get_if_addrs()
             .unwrap_or_default()
             .into_iter()
@@ -226,7 +127,7 @@ pub fn start_ui(
             if let Some(start) = out_of_sync_since {
                 if start.elapsed() >= Duration::from_secs(5) {
                     if let Some(frame) = &state.lock().unwrap().latest {
-                        let entry = match trigger_sync(frame, &cfg) {
+                        let entry = match system::trigger_sync(frame, &cfg) {
                             Ok(ts) => format!("🔄 Auto‑synced to LTC: {}", ts),
                             Err(_) => "❌ Auto‑sync failed".into(),
                         };
@@ -361,7 +262,7 @@ pub fn start_ui(
                     }
                     KeyCode::Char(c) if c.eq_ignore_ascii_case(&'s') => {
                         if let Some(frame) = &state.lock().unwrap().latest {
-                            let entry = match trigger_sync(frame, &cfg) {
+                            let entry = match system::trigger_sync(frame, &cfg) {
                                 Ok(ts) => format!("✔ Synced exactly to LTC: {}", ts),
                                 Err(_) => "❌ date cmd failed".into(),
                             };
@@ -380,37 +281,8 @@ pub fn start_ui(
 
 #[cfg(test)]
 mod tests {
+    #[allow(unused_imports)]
     use super::*;
-
+    #[allow(unused_imports)]
     use crate::config::TimeturnerOffset;
-
-    #[test]
-    fn test_get_sync_status() {
-        let mut config = Config::default();
-        assert_eq!(get_sync_status(0, &config), "IN SYNC");
-        assert_eq!(get_sync_status(8, &config), "IN SYNC");
-        assert_eq!(get_sync_status(-8, &config), "IN SYNC");
-        assert_eq!(get_sync_status(9, &config), "CLOCK BEHIND");
-        assert_eq!(get_sync_status(10, &config), "CLOCK BEHIND");
-        assert_eq!(get_sync_status(11, &config), "CLOCK AHEAD");
-        assert_eq!(get_sync_status(-9, &config), "CLOCK BEHIND");
-        assert_eq!(get_sync_status(-100, &config), "CLOCK BEHIND");
-
-        // Test TIMETURNING status
-        config.timeturner_offset = TimeturnerOffset { hours: 1, minutes: 0, seconds: 0, frames: 0 };
-        assert_eq!(get_sync_status(0, &config), "TIMETURNING");
-        assert_eq!(get_sync_status(100, &config), "TIMETURNING");
-    }
-
-    #[test]
-    fn test_get_jitter_status() {
-        assert_eq!(get_jitter_status(5), "GOOD");
-        assert_eq!(get_jitter_status(-5), "GOOD");
-        assert_eq!(get_jitter_status(9), "GOOD");
-        assert_eq!(get_jitter_status(10), "AVERAGE");
-        assert_eq!(get_jitter_status(39), "AVERAGE");
-        assert_eq!(get_jitter_status(-39), "AVERAGE");
-        assert_eq!(get_jitter_status(40), "BAD");
-        assert_eq!(get_jitter_status(-40), "BAD");
-    }
 }