- 修复循环播放

src-tauri/src/server.rs

@@ -18,7 +18,7 @@ use std::fs;
 use tokio_stream::wrappers::BroadcastStream;
 use tokio_stream::StreamExt;
 use tower_http::cors::CorsLayer;
-use tower_http::services::{ServeDir, ServeFile};
+use tower_http::services::ServeDir;
 
 // ===================== 媒体目录 =====================
 fn media_dir() -> PathBuf {
@@ -46,8 +46,50 @@ impl AppState {
     }
 }
 
+/// 智能查找 dist 目录（前端静态文件）
+/// 支持多种运行场景：
+///   - tauri dev 时 CWD = src-tauri/ → ../dist
+///   - 二进制在 target/release/dpm → ../../dist
+///   - 从项目根目录运行时 → dist
+fn dist_dir() -> PathBuf {
+    let candidates: Vec<PathBuf> = {
+        let mut c = Vec::new();
+        // 1. 相对于当前工作目录
+        c.push(PathBuf::from("dist"));
+        c.push(PathBuf::from("../dist"));
+        // 2. 相对于可执行文件路径
+        if let Ok(exe) = std::env::current_exe() {
+            if let Some(dir) = exe.parent() {
+                // 二进制在 src-tauri/target/release/dpm → dist 在 dpm/dist/
+                c.push(dir.join("../../../dist"));
+                // macOS .app bundle: dpm.app/Contents/MacOS/dpm
+                c.push(dir.join("../Resources/dist"));
+            }
+        }
+        c
+    };
+
+    for p in &candidates {
+        let canonical = p.canonicalize();
+        if let Ok(path) = canonical {
+            if path.join("index.html").exists() {
+                return path;
+            }
+        }
+    }
+
+    // Fallback：直接尝试最常见的路径
+    let fallback = PathBuf::from("../dist");
+    eprintln!("[dpm] 警告: 找不到 dist 目录 (已尝试 {:?})，使用: {:?}", candidates, fallback);
+    fallback
+}
+
 // ===================== 路由构建 =====================
 pub fn create_router(state: AppState) -> Router {
+    let dist = dist_dir();
+    println!("[dpm] 静态文件目录: {:?}", dist);
+    let dist_str = dist.to_string_lossy().to_string();
+
     Router::new()
         .route("/api/login", post(login_handler))
         .route("/api/settings", get(get_settings).post(update_settings))
@@ -61,11 +103,15 @@ pub fn create_router(state: AppState) -> Router {
         .route("/api/control", post(control_handler))
         .route("/api/state", get(get_state).post(update_state))
         .route("/api/events", get(sse_handler))
+        // 媒体文件：用户目录 ~/Downloads/Media/
         .nest_service("/file", ServeDir::new(media_dir_str()))
+        // SPA 静待文件回退
         .fallback_service(
-            ServeDir::new("../dist")
+            ServeDir::new(&dist_str)
                 .append_index_html_on_directories(true)
-                .fallback(ServeFile::new("../dist/index.html")),
+                .fallback(tower_http::services::ServeFile::new(
+                    format!("{}/index.html", dist_str),
+                )),
         )
         .layer(CorsLayer::permissive())
         .with_state(state)