优化i18n

i18n/src/lib.rs

@@ -60,16 +60,20 @@ pub fn lang(lang_id: &str, message_id: MessageId) -> &'static str {
 
 /// 将模板消息转换为最终消息，支持模板占位符
 pub fn convert_message_with_params(message_template: &'static str, args: Vec<&str>) -> String {
+    if message_template.is_empty() {
+        return String::new();
+    }
+
     if message_template.contains("{}") {
         let message_split_array: Vec<&str> = message_template.split("{}").collect();
-        // tracing::info!("message_template: {:?}, args: {:?}", message_split_array, args);
-        let mut message = String::new();
-        for (index, message_ele) in message_split_array.iter().enumerate() {
-            message += message_ele;
-            if index < args.len() && index != message_split_array.len() - 1 {
-                message += args[index];
-            }
-        }
+        let capacity = message_template.len() + args.iter().map(|s| s.len()).sum::<usize>();
+        let mut message = String::with_capacity(capacity);
+
+        message_split_array.iter().zip(args.iter().chain(std::iter::once(&""))).for_each(|(part, arg)| {
+            message.push_str(part);
+            message.push_str(arg);
+        });
+
         message
     } else {
         String::from(message_template)
@@ -86,10 +90,7 @@ macro_rules! message {
     ($lang_id:expr, $message_id:expr, $($arg:expr),*) => {
         {
             let message_template: &'static str = i18n::lang($lang_id, $message_id);
-            let mut args: Vec<&str> = vec![];
-            $(
-                args.push($arg);
-            )*
+            let args = vec![$($arg),*];
             i18n::convert_message_with_params(message_template, args)
         }
     };

library/src/middleware/req_ctx.rs

@@ -8,6 +8,7 @@ use jsonwebtoken::{decode, DecodingKey, Validation};
 use crate::{cache::inner_cache::LOGIN_ACCOUNT_CACHE, config, context::Context, model::response::ResErr, token::Claims, utils::request_util};
 
 const WHITE_LIST: &[(&str, &str)] = &[
+    ("GET", "/"),
     ("POST", "/account/sys"),
     ("POST", "/account/google"),
     ("GET", "/wechat/access_token"),

server/src/lib.rs

@@ -2,6 +2,9 @@ use axum::{body::Body, extract::Request, http, routing::get, Router};
 use library::{config, task};
 use tower::ServiceBuilder;
 use tower_http::trace::TraceLayer;
+use i18n::message;
+use i18n::message_ids::MessageId;
+use library::context::Context;
 
 mod controller;
 mod service;
@@ -44,7 +47,7 @@ fn init() -> Router {
     // layer之间存在顺序依赖，勿改。layer执行顺序和配置顺序一致
     // fallback路由放到最后，如果无匹配的路由，则不会执行layer，直接返回404
     Router::new()
-        .route("/", get(|| async { "hello" }))
+        .route("/", get(hello))
         .nest(&config!().server.prefix_url, auth)
         .layer(
             ServiceBuilder::new()
@@ -64,3 +67,7 @@ fn init() -> Router {
         )
         .fallback(|| async { (http::status::StatusCode::NOT_FOUND, "Not Found") })
 }
+
+pub async fn hello(context: Context) -> String {
+    message!(context.get_lang_tag(), MessageId::Hello, "川岳").to_string()
+}