fix: discovery.peers resource competition problem

frontend/bindings/mesh-drop/index.ts

@@ -2,5 +2,6 @@
 // This file is automatically generated. DO NOT EDIT
 
 export {
+    File,
     FilesDroppedEvent
 } from "./models.js";

frontend/bindings/mesh-drop/models.ts

@@ -5,8 +5,33 @@
 // @ts-ignore: Unused imports
 import { Create as $Create } from "@wailsio/runtime";
 
+export class File {
+    "name": string;
+    "path": string;
+
+    /** Creates a new File instance. */
+    constructor($$source: Partial<File> = {}) {
+        if (!("name" in $$source)) {
+            this["name"] = "";
+        }
+        if (!("path" in $$source)) {
+            this["path"] = "";
+        }
+
+        Object.assign(this, $$source);
+    }
+
+    /**
+     * Creates a new File instance from a string or object.
+     */
+    static createFrom($$source: any = {}): File {
+        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
+        return new File($$parsedSource as Partial<File>);
+    }
+}
+
 export class FilesDroppedEvent {
-    "files": string[];
+    "files": File[];
     "target": string;
 
     /** Creates a new FilesDroppedEvent instance. */
@@ -25,7 +50,7 @@ export class FilesDroppedEvent {
      * Creates a new FilesDroppedEvent instance from a string or object.
      */
     static createFrom($$source: any = {}): FilesDroppedEvent {
-        const $$createField0_0 = $$createType0;
+        const $$createField0_0 = $$createType1;
         let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
         if ("files" in $$parsedSource) {
             $$parsedSource["files"] = $$createField0_0($$parsedSource["files"]);
@@ -35,4 +60,5 @@ export class FilesDroppedEvent {
 }
 
 // Private type creation functions
-const $$createType0 = $Create.Array($Create.Any);
+const $$createType0 = File.createFrom;
+const $$createType1 = $Create.Array($$createType0);

frontend/src/components/MainLayout.vue

@@ -150,7 +150,18 @@ const handleCleanFinished = async () => {
       <v-container fluid class="pa-4">
         <!-- 发现视图 -->
         <div v-show="activeKey === 'discover'">
-          <div v-if="peers.length > 0" class="peer-grid">
+          <div v-if="peers.length > 0">
+            <v-alert
+              icon="mdi-information-outline"
+              density="compact"
+              variant="tonal"
+              color="primary"
+              class="mb-4 text-body-2"
+              closable
+            >
+              {{ t("discover.dragDropHint") }}
+            </v-alert>
+            <div class="peer-grid">
               <div v-for="peer in peers" :key="peer.id">
                 <PeerCard
                   :peer="peer"
@@ -158,6 +169,7 @@ const handleCleanFinished = async () => {
                 />
               </div>
             </div>
+          </div>
 
           <div
             v-else

frontend/src/components/PeerCard.vue

@@ -1,6 +1,6 @@
 <script setup lang="ts">
 // --- Vue 核心 ---
-import { computed, ref, watch, onMounted } from "vue";
+import { computed, ref, watch, onMounted, onUnmounted } from "vue";
 import { useI18n } from "vue-i18n";
 
 // --- 组件 ---
@@ -8,7 +8,7 @@ import FileSendModal from "./modals/FileSendModal.vue";
 import TextSendModal from "./modals/TextSendModal.vue";
 
 // --- Wails & 后端绑定 ---
-import { Dialogs, Clipboard } from "@wailsio/runtime";
+import { Dialogs, Clipboard, Events } from "@wailsio/runtime";
 import {
   SendFolder,
   SendText,
@@ -19,14 +19,24 @@ import {
   AddTrust,
   RemoveTrust,
 } from "../../bindings/mesh-drop/internal/config/config";
+import { File } from "bindings/mesh-drop/models";
 
 // --- 生命周期 ---
+const droppedFiles = ref<File[]>([]);
 onMounted(async () => {
   try {
     isTrusted.value = await IsTrusted(props.peer.id);
   } catch (err) {
     console.error("Failed to check trusted peer status:", err);
   }
+  Events.On("files-dropped", (event) => {
+    droppedFiles.value = event.data.files;
+    showFileModal.value = true;
+  });
+});
+
+onUnmounted(() => {
+  Events.Off("files-dropped");
 });
 
 // --- 属性 & 事件 ---
@@ -171,7 +181,14 @@ const handleUntrust = () => {
 </script>
 
 <template>
-  <v-card hover link class="peer-card pa-2" :ripple="false">
+  <v-card
+    hover
+    link
+    class="peer-card pa-2"
+    :ripple="false"
+    data-file-drop-target
+    :id="`drop-zone-peer-${peer.id}`"
+  >
     <template #title>
       <div class="d-flex align-center">
         <v-icon :icon="osIcon" size="24" class="mr-2"></v-icon>
@@ -219,6 +236,16 @@ const handleUntrust = () => {
           {{ t("discover.noRoute") }}
         </v-chip>
       </div>
+
+      <!-- 拖放提示覆盖层 -->
+      <div class="drag-drop-overlay">
+        <v-icon
+          icon="mdi-file-upload-outline"
+          size="48"
+          color="primary"
+          style="opacity: 0.8"
+        ></v-icon>
+      </div>
     </template>
 
     <v-card-actions>
@@ -304,6 +331,7 @@ const handleUntrust = () => {
     v-model="showFileModal"
     :peer="peer"
     :selectedIp="selectedIp"
+    :files="droppedFiles"
     @transferStarted="emit('transferStarted')"
   />
 
@@ -314,3 +342,70 @@ const handleUntrust = () => {
     @transferStarted="emit('transferStarted')"
   />
 </template>
+
+<style scoped>
+.peer-card {
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+  position: relative;
+  overflow: hidden;
+}
+
+.peer-card::after {
+  content: "";
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background-color: rgb(var(--v-theme-primary));
+  opacity: 0;
+  transition: opacity 0.3s ease;
+  pointer-events: none;
+  z-index: 1;
+}
+
+.peer-card.file-drop-target-active {
+  transform: translateY(-4px);
+  box-shadow: 0 8px 24px -4px rgba(var(--v-theme-primary), 0.24) !important;
+  border-color: rgb(var(--v-theme-primary)) !important;
+}
+
+.peer-card.file-drop-target-active::after {
+  opacity: 0.12;
+}
+
+.drag-drop-overlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 2;
+  pointer-events: none;
+  opacity: 0;
+  transition: opacity 0.3s ease;
+  background: rgba(var(--v-theme-surface), 0.8);
+  backdrop-filter: blur(2px);
+}
+
+.peer-card.file-drop-target-active .drag-drop-overlay {
+  opacity: 1;
+}
+
+.drag-drop-content {
+  color: rgb(var(--v-theme-primary));
+  font-weight: 500;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  transform: translateY(10px);
+  transition: transform 0.3s ease;
+}
+
+.peer-card.file-drop-target-active .drag-drop-content {
+  transform: translateY(0);
+}
+</style>

frontend/src/components/modals/FileSendModal.vue

@@ -1,18 +1,22 @@
 <script setup lang="ts">
 // --- Vue 核心 ---
-import { computed, ref, watch } from "vue";
+import { computed, onMounted, ref, watch } from "vue";
 import { useI18n } from "vue-i18n";
 
 // --- Wails & 后端绑定 ---
-import { Events, Dialogs } from "@wailsio/runtime";
+import { Events, Dialogs, Window } from "@wailsio/runtime";
 import { SendFiles } from "../../../bindings/mesh-drop/internal/transfer/service";
 import { Peer } from "../../../bindings/mesh-drop/internal/discovery/models";
+import { File } from "bindings/mesh-drop/models";
+
+onMounted(() => {});
 
 // --- 属性 & 事件 ---
 const props = defineProps<{
   modelValue: boolean;
   peer: Peer;
   selectedIp: string;
+  files: File[];
 }>();
 
 const emit = defineEmits<{
@@ -22,7 +26,6 @@ const emit = defineEmits<{
 
 // --- 状态 ---
 const { t } = useI18n();
-const fileList = ref<{ name: string; path: string }[]>([]);
 
 // --- 计算属性 ---
 const show = computed({
@@ -34,19 +37,15 @@ const show = computed({
 watch(show, (newVal) => {
   if (newVal) {
     Events.On("files-dropped", (event) => {
-      const files: string[] = event.data.files || [];
+      const files: File[] = event.data.files || [];
       files.forEach((f) => {
-        if (!fileList.value.find((existing) => existing.path === f)) {
-          fileList.value.push({
-            name: f.split(/[\/]/).pop() || f,
-            path: f,
-          });
+        if (!props.files.find((existing) => existing.path === f.path)) {
+          props.files.push(f);
         }
       });
     });
   } else {
     Events.Off("files-dropped");
-    fileList.value = [];
   }
 });
 
@@ -60,17 +59,17 @@ const openFileDialog = async () => {
   if (files) {
     if (Array.isArray(files)) {
       files.forEach((f) => {
-        if (!fileList.value.find((existing) => existing.path === f)) {
-          fileList.value.push({
-            name: f.split(/[\\/]/).pop() || f,
+        if (!props.files.find((existing) => existing.path === f)) {
+          props.files.push({
+            name: f.split(/[\/]/).pop() || f,
             path: f,
           });
         }
       });
     } else {
       const f = files as string;
-      if (!fileList.value.find((existing) => existing.path === f)) {
-        fileList.value.push({
+      if (!props.files.find((existing) => existing.path === f)) {
+        props.files.push({
           name: f.split(/[\\/]/).pop() || f,
           path: f,
         });
@@ -80,12 +79,12 @@ const openFileDialog = async () => {
 };
 
 const handleRemoveFile = (index: number) => {
-  fileList.value.splice(index, 1);
+  props.files.splice(index, 1);
 };
 
 const handleSendFiles = async () => {
-  if (fileList.value.length === 0 || !props.selectedIp) return;
-  const paths = fileList.value.map((f) => f.path);
+  if (props.files.length === 0 || !props.selectedIp) return;
+  const paths = props.files.map((f) => f.path);
 
   try {
     await SendFiles(props.peer, props.selectedIp, paths);
@@ -103,10 +102,11 @@ const handleSendFiles = async () => {
     <v-card :title="$t('modal.fileSend.title')">
       <v-card-text>
         <div
-          v-if="fileList.length === 0"
-          class="drop-zone pa-10 text-center rounded-lg border-dashed"
+          v-if="props.files.length === 0"
+          class="drop-zone pa-10 text-center rounded-lg"
           @click="openFileDialog"
           data-file-drop-target
+          id="drop-zone-area"
         >
           <v-icon
             icon="mdi-cloud-upload"
@@ -127,9 +127,10 @@ const handleSendFiles = async () => {
             max-height="400"
             style="overflow-y: auto"
             data-file-drop-target
+            id="drop-zone-list"
           >
             <v-list-item
-              v-for="(file, index) in fileList"
+              v-for="(file, index) in props.files"
               :key="file.path"
               :title="file.name"
               :subtitle="file.path"
@@ -149,8 +150,7 @@ const handleSendFiles = async () => {
 
           <v-btn
             block
-            variant="outlined"
-            style="border-style: dashed"
+            variant="tonal"
             prepend-icon="mdi-plus"
             @click="openFileDialog"
             class="mt-2"
@@ -168,10 +168,10 @@ const handleSendFiles = async () => {
         <v-btn
           color="primary"
           @click="handleSendFiles"
-          :disabled="fileList.length === 0"
+          :disabled="props.files.length === 0"
         >
           {{ $t("modal.fileSend.sendSrc") }}
-          {{ fileList.length > 0 ? `(${fileList.length})` : "" }}
+          {{ props.files.length > 0 ? `(${props.files.length})` : "" }}
         </v-btn>
       </v-card-actions>
     </v-card>
@@ -180,17 +180,32 @@ const handleSendFiles = async () => {
 
 <style scoped>
 .drop-zone {
-  border: 2px dashed #666; /* Use a darker color or theme var */
+  border: 2px solid transparent;
+  border-radius: 12px;
+  background-color: rgba(var(--v-theme-on-surface), 0.04);
   cursor: pointer;
-  transition: all 0.3s;
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+  position: relative;
+  overflow: hidden;
 }
+
 .drop-zone:hover {
-  border-color: #38bdf8;
-  background-color: rgba(56, 189, 248, 0.05);
+  background-color: rgba(var(--v-theme-primary), 0.08);
 }
 
 .drop-zone.file-drop-target-active {
-  border-color: #38bdf8;
-  background-color: rgba(56, 189, 248, 0.1);
+  border-color: rgb(var(--v-theme-primary));
+  background-color: rgba(var(--v-theme-primary), 0.12);
+  transform: scale(1.01);
+  box-shadow: 0 4px 12px rgba(var(--v-theme-primary), 0.15);
+}
+
+#drop-zone-list {
+  transition: all 0.3s ease;
+}
+
+#drop-zone-list.file-drop-target-active {
+  box-shadow: inset 0 0 0 2px rgb(var(--v-theme-primary));
+  background-color: rgba(var(--v-theme-primary), 0.04);
 }
 </style>

frontend/src/locales/en.json

@@ -33,7 +33,8 @@
         "trustPeer": "Trust Peer",
         "untrustPeer": "Untrust Peer",
         "sendFolderFailed": "Failed to send folder: {error}",
-        "sendClipboardFailed": "Failed to send clipboard: {error}"
+        "sendClipboardFailed": "Failed to send clipboard: {error}",
+        "dragDropHint": "Drag and drop files here to send"
     },
     "transfers": {
         "noTransfers": "No transfers yet",

frontend/src/locales/zh-Hans.json

@@ -33,7 +33,8 @@
         "trustPeer": "信任设备",
         "untrustPeer": "取消信任",
         "sendFolderFailed": "发送文件夹失败: {error}",
-        "sendClipboardFailed": "发送剪贴板失败: {error}"
+        "sendClipboardFailed": "发送剪贴板失败: {error}",
+        "dragDropHint": "拖放文件到此处快速发送"
     },
     "transfers": {
         "noTransfers": "暂无传输记录",

internal/discovery/model.go

@@ -61,3 +61,20 @@ func (p *PresencePacket) SignPayload() []byte {
 	// 格式: id|name|port|os|pk
 	return fmt.Appendf(nil, "%s|%s|%d|%s|%s", p.ID, p.Name, p.Port, p.OS, p.PublicKey)
 }
+
+// DeepCopy 返回 Peer 的深拷贝
+func (p Peer) DeepCopy() *Peer {
+	newPeer := p // 结构体浅拷贝 (值类型字段已复制)
+
+	// 手动深拷贝引用类型字段 (Routes)
+	if p.Routes != nil {
+		newPeer.Routes = make(map[string]*RouteState, len(p.Routes))
+		for k, v := range p.Routes {
+			// RouteState 只有值类型字段，但它是指针，所以需要新建对象并解引用赋值
+			stateCopy := *v
+			newPeer.Routes[k] = &stateCopy
+		}
+	}
+
+	return &newPeer
+}

internal/discovery/service.go

@@ -337,7 +337,7 @@ func (s *Service) GetPeerByIP(ip string) (*Peer, bool) {
 
 	for _, p := range s.peers {
 		if p.Routes[ip] != nil {
-			return p, true
+			return p.DeepCopy(), true
 		}
 	}
 	return nil, false
@@ -348,7 +348,10 @@ func (s *Service) GetPeerByID(id string) (*Peer, bool) {
 	defer s.peersMutex.RUnlock()
 
 	peer, ok := s.peers[id]
-	return peer, ok
+	if !ok {
+		return nil, false
+	}
+	return peer.DeepCopy(), true
 }
 
 func (s *Service) GetPeers() []Peer {
@@ -357,7 +360,7 @@ func (s *Service) GetPeers() []Peer {
 
 	list := make([]Peer, 0)
 	for _, p := range s.peers {
-		list = append(list, *p)
+		list = append(list, *p.DeepCopy())
 	}
 	sort.Slice(list, func(i, j int) bool {
 		return list[i].Name < list[j].Name

main.go

@@ -7,6 +7,7 @@ import (
 	"mesh-drop/internal/discovery"
 	"mesh-drop/internal/transfer"
 	"os"
+	"path/filepath"
 
 	"github.com/wailsapp/wails/v3/pkg/application"
 	"github.com/wailsapp/wails/v3/pkg/events"
@@ -19,8 +20,13 @@ var assets embed.FS
 //go:embed build/appicon.png
 var icon []byte
 
+type File struct {
+	Name string `json:"name"`
+	Path string `json:"path"`
+}
+
 type FilesDroppedEvent struct {
-	Files  []string `json:"files"`
+	Files  []File `json:"files"`
 	Target string `json:"target"`
 }
 
@@ -132,7 +138,13 @@ func (a *App) registerCustomEvents() {
 func (a *App) setupEvents() {
 	// 窗口文件拖拽事件
 	a.mainWindows.OnWindowEvent(events.Common.WindowFilesDropped, func(event *application.WindowEvent) {
-		files := event.Context().DroppedFiles()
+		files := make([]File, 0)
+		for _, file := range event.Context().DroppedFiles() {
+			files = append(files, File{
+				Name: filepath.Base(file),
+				Path: file,
+			})
+		}
 		details := event.Context().DropTargetDetails()
 		a.app.Event.Emit("files-dropped", FilesDroppedEvent{
 			Files:  files,