feat: config methods

applets/cosmic-app-list/src/config.rs

@@ -1,31 +1,35 @@
 use anyhow::anyhow;
-use serde::Deserialize;
+use serde::{Serialize, Deserialize};
 use std::fmt::Debug;
 use std::fs::File;
+use std::path::PathBuf;
 use xdg::BaseDirectories;
 
 pub const APP_ID: &str = "com.system76.CosmicAppList";
 pub const VERSION: &str = "0.1.0";
 
-#[derive(Debug, Clone, Deserialize, Default)]
+#[derive(Debug, Clone, Deserialize, Serialize, Default)]
 pub enum TopLevelFilter {
     #[default]
     ActiveWorkspace,
     ConfiguredOutput,
 }
 
-#[derive(Debug, Clone, Default, Deserialize)]
+#[derive(Debug, Clone, Default, Deserialize, Serialize)]
 pub struct AppListConfig {
     pub filter_top_levels: Option<TopLevelFilter>,
     pub favorites: Vec<String>,
 }
 
 impl AppListConfig {
+    // TODO async?
     /// load config with the provided name
     pub fn load() -> anyhow::Result<AppListConfig> {
+        let mut relative_path = PathBuf::from(APP_ID);
+        relative_path.push("config.ron");
         let file = match BaseDirectories::new()
             .ok()
-            .and_then(|dirs| dirs.find_config_file(format!("{APP_ID}/config.ron")))
+            .and_then(|dirs| dirs.find_config_file(relative_path))
             .and_then(|p| File::open(p).ok())
         {
             Some(path) => path,
@@ -42,15 +46,22 @@ impl AppListConfig {
         if !self.favorites.contains(&id) {
             self.favorites.push(id);
         }
-        todo!()
+        self.save()
     }
 
     pub fn remove_favorite(&mut self, id: String) -> anyhow::Result<()> {
         self.favorites.retain(|e| e != &id);
-        todo!()
+        self.save()
     }
 
-    pub fn save() -> anyhow::Result<()> {
-        todo!()
+    // TODO async?
+    pub fn save(&self) -> anyhow::Result<()> {
+        let bd = BaseDirectories::new()?;
+        let mut relative_path = PathBuf::from(APP_ID);
+        relative_path.push("config.ron");
+        let config_path = bd.place_config_file(relative_path)?;
+        let f = File::create(config_path)?;
+        ron::ser::to_writer_pretty(f, self, Default::default())?;
+        Ok(())
     }
 }