88 lines
2.4 KiB
Rust
88 lines
2.4 KiB
Rust
|
use std::sync::Arc;
|
||
|
|
use parking_lot::RwLock;
|
||
|
|
|
||
|
|
use super::structs::Settings;
|
||
|
|
use super::save_settings;
|
||
|
|
|
||
|
|
// centralized settings manager.
|
||
|
|
// wraps Arc<RwLock<Settings>> and handles locking + auto-save
|
||
|
|
// can be used anywhere, ex. from GUI, tray, IPC, CLI, etc.
|
||
|
|
#[derive(Clone)]
|
||
|
|
pub struct SettingsManager {
|
||
|
|
inner: Arc<RwLock<Settings>>,
|
||
|
|
}
|
||
|
|
|
||
|
|
impl SettingsManager {
|
||
|
|
pub fn new(settings: Settings) -> Self {
|
||
|
|
Self {
|
||
|
|
inner: Arc::new(RwLock::new(settings)),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// wrap an existing Arc<RwLock<Settings>>
|
||
|
|
pub fn from_arc(arc: Arc<RwLock<Settings>>) -> Self {
|
||
|
|
Self { inner: arc }
|
||
|
|
}
|
||
|
|
|
||
|
|
// read a setting by key
|
||
|
|
pub fn read(&self, key: &str) -> Option<String> {
|
||
|
|
self.inner.read().get(key)
|
||
|
|
}
|
||
|
|
|
||
|
|
// write a setting by key, auto-saves to disk
|
||
|
|
pub fn write(&self, key: &str, val: &str) -> Result<(), String> {
|
||
|
|
let snapshot = {
|
||
|
|
let mut settings = self.inner.write();
|
||
|
|
settings.set(key, val)?;
|
||
|
|
settings.clone()
|
||
|
|
};
|
||
|
|
|
||
|
|
save_settings(&snapshot)
|
||
|
|
.map_err(|e| format!("failed to save settings: {}", e))?;
|
||
|
|
|
||
|
|
Ok(())
|
||
|
|
}
|
||
|
|
|
||
|
|
// write multiple settings at once, single save
|
||
|
|
pub fn write_many(&self, pairs: &[(&str, &str)]) -> Result<(), String> {
|
||
|
|
let snapshot = {
|
||
|
|
let mut settings = self.inner.write();
|
||
|
|
for (key, val) in pairs {
|
||
|
|
settings.set(key, val)?;
|
||
|
|
}
|
||
|
|
settings.clone()
|
||
|
|
};
|
||
|
|
|
||
|
|
save_settings(&snapshot)
|
||
|
|
.map_err(|e| format!("failed to save settings: {}", e))?;
|
||
|
|
|
||
|
|
Ok(())
|
||
|
|
}
|
||
|
|
|
||
|
|
// direct read access to the full Settings struct (for init code that
|
||
|
|
// needs to read multiple fields at once without key-based access)
|
||
|
|
pub fn lock(&self) -> parking_lot::RwLockReadGuard<'_, Settings> {
|
||
|
|
self.inner.read()
|
||
|
|
}
|
||
|
|
|
||
|
|
// direct write access (for bulk operations not covered by set())
|
||
|
|
pub fn lock_mut(&self) -> parking_lot::RwLockWriteGuard<'_, Settings> {
|
||
|
|
self.inner.write()
|
||
|
|
}
|
||
|
|
|
||
|
|
// get the underlying Arc
|
||
|
|
pub fn arc(&self) -> &Arc<RwLock<Settings>> {
|
||
|
|
&self.inner
|
||
|
|
}
|
||
|
|
|
||
|
|
// dump all settings as key-value pairs (for debugging)
|
||
|
|
pub fn dump(&self) -> Vec<(String, String)> {
|
||
|
|
let settings = self.inner.read();
|
||
|
|
Settings::keys().iter()
|
||
|
|
.filter_map(|&key| {
|
||
|
|
settings.get(key).map(|val| (key.to_string(), val))
|
||
|
|
})
|
||
|
|
.collect()
|
||
|
|
}
|
||
|
|
}
|