Server list

src-tauri/src/commands.rs

@@ -0,0 +1,51 @@
+use serde::{Deserialize, Serialize};
+use std::fs;
+use tauri::{AppHandle, Manager};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct KnownServer {
+    pub name: String,
+    pub description: String,
+    pub public_key: String,
+    pub hostname: String,
+    pub is_wss: bool,
+}
+
+fn servers_file_path(app: &AppHandle) -> Result<std::path::PathBuf, String> {
+    let dir = app
+        .path()
+        .app_data_dir()
+        .map_err(|e| format!("Failed to resolve app data dir: {e}"))?;
+
+    // ensure the directory exists before we ever try to read/write into it
+    fs::create_dir_all(&dir).map_err(|e| format!("Failed to create app data dir: {e}"))?;
+
+    Ok(dir.join("servers.json"))
+}
+
+#[tauri::command]
+pub fn save_server_list(app: AppHandle, servers: Vec<KnownServer>) -> Result<(), String> {
+    let path = servers_file_path(&app)?;
+
+    let json = serde_json::to_string_pretty(&servers)
+        .map_err(|e| format!("Failed to serialize server list: {e}"))?;
+
+    fs::write(&path, json).map_err(|e| format!("Failed to write server list: {e}"))?;
+
+    Ok(())
+}
+
+#[tauri::command]
+pub fn get_server_list(app: AppHandle) -> Result<Vec<KnownServer>, String> {
+    let path = servers_file_path(&app)?;
+
+    if !path.exists() {
+        fs::write(&path, "[]").map_err(|e| format!("Failed to write first server list: {e}"))?;
+
+        return Ok(Vec::new());
+    }
+
+    let json = fs::read_to_string(&path).map_err(|e| format!("Failed to read server list: {e}"))?;
+
+    serde_json::from_str(&json).map_err(|e| format!("Failed to parse server list: {e}"))
+}

src-tauri/src/lib.rs

@@ -1,14 +1,13 @@
-// Learn more about Tauri commands at https://tauri.app/develop/calling-rust/
-#[tauri::command]
-fn greet(name: &str) -> String {
-    format!("Hello, {}! You've been greeted from Rust!", name)
-}
+pub mod commands;
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_opener::init())
-        .invoke_handler(tauri::generate_handler![greet])
+        .invoke_handler(tauri::generate_handler![
+            commands::save_server_list,
+            commands::get_server_list
+        ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");
 }