Add conversion method from TomlConfigLoader to NetworkConfig to enhance configuration experience (#990)

* add method to create NetworkConfig from TomlConfigLoader
* allow web export/import toml config file and gui edit toml config
* Extract the configuration file dialog into a separate component and allow direct editing of the configuration file on the web

easytier-gui/src-tauri/src/lib.rs

@@ -4,11 +4,9 @@
 use std::collections::BTreeMap;
 
 use easytier::{
-    common::config::{
-        ConfigLoader, FileLoggerConfig, LoggingConfigBuilder,
-    },
-    launcher::{ConfigSource, NetworkConfig, NetworkInstanceRunningInfo},
+    common::config::{ConfigLoader, FileLoggerConfig, LoggingConfigBuilder, TomlConfigLoader},
     instance_manager::NetworkInstanceManager,
+    launcher::{ConfigSource, NetworkConfig, NetworkInstanceRunningInfo},
     utils::{self, NewFilterSender},
 };
 
@@ -44,6 +42,13 @@ fn parse_network_config(cfg: NetworkConfig) -> Result<String, String> {
     Ok(toml.dump())
 }
 
+#[tauri::command]
+fn generate_network_config(toml_config: String) -> Result<NetworkConfig, String> {
+    let config = TomlConfigLoader::new_from_str(&toml_config).map_err(|e| e.to_string())?;
+    let cfg = NetworkConfig::new_from_config(&config).map_err(|e| e.to_string())?;
+    Ok(cfg)
+}
+
 #[tauri::command]
 fn run_network_instance(cfg: NetworkConfig) -> Result<(), String> {
     let instance_id = cfg.instance_id().to_string();
@@ -226,6 +231,7 @@ pub fn run() {
         })
         .invoke_handler(tauri::generate_handler![
             parse_network_config,
+            generate_network_config,
             run_network_instance,
             retain_network_instance,
             collect_network_infos,