cli: more command logic to a dedicated module; add debug cmd

src/cli/debug.rs

@@ -0,0 +1,166 @@
+use crate::config::AppConfig;
+use crate::conflict;
+use crate::cpu;
+use crate::monitor;
+use std::error::Error;
+use std::fs;
+
+/// Prints comprehensive debug information about the system
+pub fn run_debug(config: &AppConfig) -> Result<(), Box<dyn Error>> {
+    println!("=== SUPERFREQ DEBUG INFORMATION ===");
+    println!("Version: {}", env!("CARGO_PKG_VERSION"));
+
+    // Current date and time
+    let now = std::time::SystemTime::now();
+    println!("Timestamp: {now:?}");
+
+    // Get system information and conflicts
+    match monitor::collect_system_report(config) {
+        Ok(report) => {
+            println!("\n--- SYSTEM INFORMATION ---");
+            println!("CPU Model: {}", report.system_info.cpu_model);
+            println!("Architecture: {}", report.system_info.architecture);
+            println!(
+                "Linux Distribution: {}",
+                report.system_info.linux_distribution
+            );
+
+            println!("\n--- CONFIGURATION ---");
+            println!("Current Configuration: {config:#?}");
+
+            println!("\n--- CPU INFORMATION ---");
+            println!("Current Governor: {:?}", report.cpu_global.current_governor);
+            println!(
+                "Available Governors: {}",
+                report.cpu_global.available_governors.join(", ")
+            );
+            println!("Turbo Status: {:?}", report.cpu_global.turbo_status);
+            println!(
+                "Energy Performance Preference (EPP): {:?}",
+                report.cpu_global.epp
+            );
+            println!("Energy Performance Bias (EPB): {:?}", report.cpu_global.epb);
+
+            // Add governor override information
+            if let Some(override_governor) = cpu::get_governor_override() {
+                println!("Governor Override: {}", override_governor.trim());
+            } else {
+                println!("Governor Override: None");
+            }
+
+            println!("\n--- PLATFORM PROFILE ---");
+            println!(
+                "Current Platform Profile: {:?}",
+                report.cpu_global.platform_profile
+            );
+            match cpu::get_platform_profiles() {
+                Ok(profiles) => println!("Available Platform Profiles: {}", profiles.join(", ")),
+                Err(_) => println!("Available Platform Profiles: Not supported on this system"),
+            }
+
+            println!("\n--- CPU CORES DETAIL ---");
+            println!("Total CPU Cores: {}", report.cpu_cores.len());
+            for core in &report.cpu_cores {
+                println!("Core {}:", core.core_id);
+                println!(
+                    "  Current Frequency: {} MHz",
+                    core.current_frequency_mhz
+                        .map_or_else(|| "N/A".to_string(), |f| f.to_string())
+                );
+                println!(
+                    "  Min Frequency: {} MHz",
+                    core.min_frequency_mhz
+                        .map_or_else(|| "N/A".to_string(), |f| f.to_string())
+                );
+                println!(
+                    "  Max Frequency: {} MHz",
+                    core.max_frequency_mhz
+                        .map_or_else(|| "N/A".to_string(), |f| f.to_string())
+                );
+                println!(
+                    "  Usage: {}%",
+                    core.usage_percent
+                        .map_or_else(|| "N/A".to_string(), |u| format!("{u:.1}"))
+                );
+                println!(
+                    "  Temperature: {}°C",
+                    core.temperature_celsius
+                        .map_or_else(|| "N/A".to_string(), |t| format!("{t:.1}"))
+                );
+            }
+
+            println!("\n--- TEMPERATURE INFORMATION ---");
+            println!(
+                "Average CPU Temperature: {}",
+                report.cpu_global.average_temperature_celsius.map_or_else(
+                    || "N/A (CPU temperature sensor not detected)".to_string(),
+                    |t| format!("{t:.1}°C")
+                )
+            );
+
+            println!("\n--- BATTERY INFORMATION ---");
+            if report.batteries.is_empty() {
+                println!("No batteries found or all are ignored.");
+            } else {
+                for battery in &report.batteries {
+                    println!("Battery: {}", battery.name);
+                    println!("  AC Connected: {}", battery.ac_connected);
+                    println!(
+                        "  Charging State: {}",
+                        battery.charging_state.as_deref().unwrap_or("N/A")
+                    );
+                    println!(
+                        "  Capacity: {}%",
+                        battery
+                            .capacity_percent
+                            .map_or_else(|| "N/A".to_string(), |c| c.to_string())
+                    );
+                    println!(
+                        "  Power Rate: {} W",
+                        battery
+                            .power_rate_watts
+                            .map_or_else(|| "N/A".to_string(), |p| format!("{p:.2}"))
+                    );
+                    println!(
+                        "  Charge Start Threshold: {}",
+                        battery
+                            .charge_start_threshold
+                            .map_or_else(|| "N/A".to_string(), |t| t.to_string())
+                    );
+                    println!(
+                        "  Charge Stop Threshold: {}",
+                        battery
+                            .charge_stop_threshold
+                            .map_or_else(|| "N/A".to_string(), |t| t.to_string())
+                    );
+                }
+            }
+
+            println!("\n--- SYSTEM LOAD ---");
+            println!(
+                "Load Average (1 min): {:.2}",
+                report.system_load.load_avg_1min
+            );
+            println!(
+                "Load Average (5 min): {:.2}",
+                report.system_load.load_avg_5min
+            );
+            println!(
+                "Load Average (15 min): {:.2}",
+                report.system_load.load_avg_15min
+            );
+
+            println!("\n--- CONFLICT DETECTION ---");
+            let conflicts = conflict::detect_conflicts();
+            println!("{}", conflicts.get_conflict_message());
+
+            println!("\n--- DAEMON STATUS ---");
+            // Simple check for daemon status - can be expanded later
+            let daemon_status = fs::metadata("/var/run/superfreq.pid").is_ok();
+            println!("Daemon Running: {daemon_status}");
+
+            Ok(())
+        }
+        Err(e) => Err(Box::new(e) as Box<dyn Error>),
+    }
+}

src/cli/mod.rs

@@ -0,0 +1 @@
+pub mod debug;

src/config/watcher.rs

@@ -0,0 +1,73 @@
+use notify::{Config, Event, EventKind, RecommendedWatcher, RecursiveMode, Watcher};
+use std::path::Path;
+use std::sync::mpsc::{channel, Receiver};
+use std::time::Duration;
+use std::thread;
+use std::error::Error;
+
+use crate::config::{load_config, AppConfig};
+
+/// Watches a configuration file for changes and reloads it when modified
+pub struct ConfigWatcher {
+    rx: Receiver<Result<Event, notify::Error>>,
+    _watcher: RecommendedWatcher, // keep watcher alive while watching
+    config_path: String,
+}
+
+impl ConfigWatcher {
+    /// Initialize a new config watcher for the given path
+    pub fn new(config_path: &str) -> Result<Self, notify::Error> {
+        let (tx, rx) = channel();
+
+        // Create a watcher with default config
+        let mut watcher = RecommendedWatcher::new(tx, Config::default())?;
+
+        // Start watching the config file
+        watcher.watch(Path::new(config_path), RecursiveMode::NonRecursive)?;
+
+        Ok(Self {
+            rx,
+            _watcher: watcher,
+            config_path: config_path.to_string(),
+        })
+    }
+
+    /// Check for config file changes and reload if necessary
+    ///
+    /// # Returns
+    ///
+    /// `Some(AppConfig)` if the config was reloaded, `None`` otherwise
+    pub fn check_for_changes(&self) -> Option<Result<AppConfig, Box<dyn Error>>> {
+        // Non-blocking check for file events
+        match self.rx.try_recv() {
+            Ok(Ok(event)) => {
+                // Only process write/modify events
+                if matches!(event.kind, EventKind::Modify(_)) {
+                    // Add a small delay to ensure the file write is complete
+                    thread::sleep(Duration::from_millis(100));
+
+                    // Attempt to reload the config
+                    match load_config() {
+                        Ok(config) => {
+                            println!("Configuration file changed. Reloaded configuration.");
+                            Some(Ok(config))
+                        }
+                        Err(e) => {
+                            eprintln!("Error reloading configuration: {e}");
+                            Some(Err(Box::new(e)))
+                        }
+                    }
+                } else {
+                    None
+                }
+            }
+            // No events or channel errors
+            _ => None,
+        }
+    }
+
+    /// Get the path of the config file being watched
+    pub const fn config_path(&self) -> &String {
+        &self.config_path
+    }
+}

src/engine.rs

@@ -67,8 +67,8 @@ pub fn determine_and_apply_settings(
         // If no batteries, assume AC power (desktop).
         // Otherwise, check the ac_connected status from the (first) battery.
         // XXX: This relies on the setting ac_connected in BatteryInfo being set correctly.
-        let on_ac_power = report.batteries.is_empty()
-            || report.batteries.first().map_or(false, |b| b.ac_connected);
+        let on_ac_power =
+            report.batteries.is_empty() || report.batteries.first().is_some_and(|b| b.ac_connected);
 
         if on_ac_power {
             println!("Engine: On AC power, selecting Charger profile.");

src/main.rs

@@ -1,3 +1,4 @@
+mod cli;
 mod config;
 mod conflict;
 mod core;
@@ -45,6 +46,8 @@ enum Commands {
         #[clap(value_enum)]
         setting: TurboSetting,
     },
+    /// Display comprehensive debug information
+    Debug,
     /// Set Energy Performance Preference (EPP)
     SetEpp {
         epp: String,
@@ -202,6 +205,7 @@ fn main() {
         Some(Commands::SetPlatformProfile { profile }) => cpu::set_platform_profile(&profile)
             .map_err(|e| Box::new(e) as Box<dyn std::error::Error>),
         Some(Commands::Daemon { verbose }) => daemon::run_daemon(config, verbose),
+        Some(Commands::Debug) => cli::debug::run_debug(&config),
         None => {
             println!("Welcome to superfreq! Use --help for commands.");
             println!("Current effective configuration: {config:?}");

src/monitor.rs

@@ -417,7 +417,14 @@ pub fn get_cpu_global_info(cpu_cores: &[CpuCoreInfo]) -> CpuGlobalInfo {
         None
     };
 
-    let available_governors = get_platform_profiles().unwrap_or_else(|_| vec![]);
+    let available_governors = if cpufreq_base.join("scaling_available_governors").exists() {
+        read_sysfs_file_trimmed(cpufreq_base.join("scaling_available_governors")).map_or_else(
+            |_| vec![],
+            |s| s.split_whitespace().map(String::from).collect(),
+        )
+    } else {
+        vec![]
+    };
 
     let turbo_status = if turbo_status_path.exists() {
         // 0 means turbo enabled, 1 means disabled for intel_pstate