add missing maps routes

planetwars-server/src/routes/maps.rs

@@ -0,0 +1,19 @@
+use crate::{db, DatabaseConnection};
+use axum::Json;
+use hyper::StatusCode;
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize)]
+pub struct ApiMap {
+    pub name: String,
+}
+
+pub async fn list_maps(conn: DatabaseConnection) -> Result<Json<Vec<ApiMap>>, StatusCode> {
+    let maps = db::maps::list_maps(&conn).map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
+
+    let api_maps = maps
+        .into_iter()
+        .map(|map| ApiMap { name: map.name })
+        .collect();
+    Ok(Json(api_maps))
+}