Feat: Support Web frontend

internal/web/handler.go

@@ -0,0 +1,87 @@
+package web
+
+import (
+	"io"
+	"io/fs"
+	"net/http"
+	"path"
+	"strings"
+)
+
+// Handler Web管理界面处理器
+type Handler struct {
+	fileSystem http.FileSystem
+}
+
+// NewHandler 创建Web处理器
+// distFS 应该是通过 embed.FS 嵌入的 dist 目录
+func NewHandler(distFS fs.FS) *Handler {
+	return &Handler{
+		fileSystem: http.FS(distFS),
+	}
+}
+
+// ServeHTTP 实现 http.Handler 接口
+// 处理单页应用的路由，将所有未找到的路径重定向到 index.html
+func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	// 清理路径
+	p := r.URL.Path
+	if !strings.HasPrefix(p, "/") {
+		p = "/" + p
+	}
+
+	// 尝试打开文件
+	f, err := h.fileSystem.Open(path.Clean(p))
+	if err != nil {
+		// 文件不存在，返回 index.html (用于支持前端路由)
+		indexFile, err := h.fileSystem.Open("index.html")
+		if err != nil {
+			http.Error(w, "File not found", http.StatusNotFound)
+			return
+		}
+		defer indexFile.Close()
+
+		// 读取 index.html 内容
+		stat, err := indexFile.Stat()
+		if err != nil {
+			http.Error(w, "Internal server error", http.StatusInternalServerError)
+			return
+		}
+
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		http.ServeContent(w, r, "index.html", stat.ModTime(), indexFile.(io.ReadSeeker))
+		return
+	}
+	defer f.Close()
+
+	// 文件存在，检查是否为目录
+	stat, err := f.Stat()
+	if err != nil {
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+		return
+	}
+
+	if stat.IsDir() {
+		// 如果是目录，尝试返回 index.html
+		indexPath := path.Join(p, "index.html")
+		indexFile, err := h.fileSystem.Open(indexPath)
+		if err != nil {
+			http.Error(w, "Forbidden", http.StatusForbidden)
+			return
+		}
+		defer indexFile.Close()
+
+		indexStat, err := indexFile.Stat()
+		if err != nil {
+			http.Error(w, "Internal server error", http.StatusInternalServerError)
+			return
+		}
+
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		http.ServeContent(w, r, "index.html", indexStat.ModTime(), indexFile.(io.ReadSeeker))
+		return
+	}
+
+	// 返回文件内容
+	http.ServeContent(w, r, stat.Name(), stat.ModTime(), f.(io.ReadSeeker))
+}

internal/webui/embed.go

@@ -0,0 +1,14 @@
+package webui
+
+import (
+	"embed"
+	"io/fs"
+)
+
+//go:embed dist
+var distFS embed.FS
+
+// GetDistFS 获取嵌入的前端静态文件系统
+func GetDistFS() (fs.FS, error) {
+	return fs.Sub(distFS, "dist")
+}