feat: add hotspot settings persistence with GSettings

.gitignore

@@ -1 +1,2 @@
 /target
+/data/gschemas.compiled

data/io.github.AghastyGD.Wiretray.gschema.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<schemalist>
+  <schema 
+    id="io.github.AghastyGD.Wiretray"
+    path="/io/github/AghastyGD/Wiretray/">    
+
+    <key name="ssid" type="s">
+      <default>''</default>
+      <summary>Hotspot SSID</summary>
+    </key>
+
+    <key name="password" type="s">
+      <default>''</default>
+      <summary>Hotspot password</summary>
+    </key>
+  </schema>
+</schemalist>

src/lib.rs

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+pub mod dbus;
+pub mod models;
+pub mod services;
+pub mod settings;
+pub mod tray;

src/main.rs

@@ -1,10 +1,7 @@
-mod dbus;
-mod models;
-mod services;
-mod tray;
-
 use anyhow::Result;
 
+use wiretray::tray;
+
 fn main() -> Result<()> {
     setup_logging();
 

src/settings/hotspot_settings.rs

@@ -0,0 +1,5 @@
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct HotspotSettings {
+    pub ssid: String,
+    pub password: String,
+}

src/settings/mod.rs

@@ -0,0 +1,2 @@
+pub mod hotspot_settings;
+pub mod service;

src/settings/service.rs

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+use anyhow::Result;
+use gtk::gio::Settings;
+use gtk::prelude::SettingsExt;
+
+use super::hotspot_settings::HotspotSettings;
+
+const SCHEMA_ID: &str = "io.github.AghastyGD.Wiretray";
+
+const KEY_SSID: &str = "ssid";
+const KEY_PASSWORD: &str = "password";
+
+pub struct SettingsService {
+    settings: Settings,
+}
+
+impl Default for SettingsService {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl SettingsService {
+    pub fn new() -> Self {
+        Self {
+            settings: Settings::new(SCHEMA_ID),
+        }
+    }
+
+    pub fn load(&self) -> Result<HotspotSettings> {
+        Ok(HotspotSettings {
+            ssid: self.settings.string(KEY_SSID).to_string(),
+            password: self.settings.string(KEY_PASSWORD).to_string(),
+        })
+    }
+    pub fn save(&self, settings: &HotspotSettings) -> Result<()> {
+        self.settings.set_string(KEY_SSID, &settings.ssid)?;
+
+        self.settings.set_string(KEY_PASSWORD, &settings.password)?;
+
+        Ok(())
+    }
+}