feat(文件预览): 添加音频和视频文件预览功能

实现文件点击预览功能，支持音频和视频文件的播放
添加音频播放器和视频播放器组件
处理多种文件URL获取方式
优化文件列表项的交互样式

@@ -63,6 +63,7 @@
                                 :before-read="beforeRead"
                                 :after-read="afterRead"
                                 @delete="onDelete"
+                                @click-preview="onClickPreview"
                                 multiple
                                 :accept="getAcceptType()"
                                 result-type="file"
@@ -72,7 +73,7 @@
                             <!-- 文件列表显示 -->
                             <div v-if="fileList.length > 0" class="file-list">
                                 <div v-for="(item, index) in fileList" :key="index" class="file-item">
-                                    <div class="file-info">
+                                    <div class="file-info" @click="previewFile(item)">
                                         <van-icon :name="getFileIcon()" size="1rem" />
                                         <span class="file-name">{{ item.name || item.file?.name }}</span>
                                         <span class="file-status" :class="item.status">{{ item.message }}</span>
@@ -116,16 +117,79 @@
                 <van-loading vertical color="#FFFFFF">上传中...</van-loading>
             </div>
         </van-overlay>
+
+        <!-- 音频播放器弹窗 -->
+        <van-popup
+            v-model:show="audioShow"
+            position="bottom"
+            round
+            closeable
+            :style="{ height: '60%', width: '100%' }"
+        >
+            <div class="p-4">
+                <h3 class="text-lg font-medium mb-4 text-center">{{ audioTitle }}</h3>
+                <AudioPlayer
+                    v-if="audioShow && audioUrl"
+                    :songs="[{ title: audioTitle, url: audioUrl }]"
+                    class="w-full"
+                />
+            </div>
+        </van-popup>
+
+        <!-- 视频播放器弹窗 -->
+        <van-popup
+            v-model:show="videoShow"
+            position="center"
+            round
+            closeable
+            :style="{ width: '95%', maxHeight: '80vh' }"
+            @close="stopVideoPlay"
+        >
+            <div class="p-4">
+                <h3 class="text-lg font-medium mb-4 text-center">视频预览</h3>
+                <div class="relative w-full bg-black rounded-lg overflow-hidden" style="aspect-ratio: 16/9;">
+                    <!-- 视频封面 -->
+                    <div
+                        v-show="!isVideoPlaying"
+                        class="absolute inset-0 flex items-center justify-center cursor-pointer"
+                        @click="startVideoPlay"
+                    >
+                        <img :src="videoCover || 'https://cdn.ipadbiz.cn/mlaj/images/cover_video_2.png'"
+                            :alt="videoTitle" class="w-full h-full object-cover" />
+                        <div class="absolute inset-0 flex items-center justify-center bg-black/20">
+                            <div
+                                class="w-16 h-16 rounded-full bg-black/50 flex items-center justify-center hover:bg-black/70 transition-colors">
+                                <van-icon name="play-circle-o" class="text-white" size="40" />
+                            </div>
+                        </div>
+                    </div>
+                    <!-- 视频播放器 -->
+                    <VideoPlayer
+                        v-show="isVideoPlaying"
+                        ref="videoPlayerRef"
+                        :video-url="videoUrl"
+                        :video-id="videoTitle"
+                        :autoplay="false"
+                        class="w-full h-full"
+                        @play="handleVideoPlay"
+                        @pause="handleVideoPause"
+                    />
+                </div>
+            </div>
+        </van-popup>
     </div>
 </template>
 
 <script setup>
-import { ref, computed, onMounted } from 'vue'
+import { ref, computed, onMounted, nextTick } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { getTaskDetailAPI } from "@/api/checkin"
 import { getTeacherFindSettingsAPI } from '@/api/teacher'
 import { useTitle } from '@vueuse/core'
 import { useCheckin } from '@/composables/useCheckin'
+import AudioPlayer from '@/components/ui/AudioPlayer.vue'
+import VideoPlayer from '@/components/ui/VideoPlayer.vue'
+import { showToast } from 'vant'
 import dayjs from 'dayjs'
 
 const route = useRoute()
@@ -159,6 +223,17 @@ const attachmentTypeOptions = ref([])
 // 是否为编辑模式
 const isEditMode = computed(() => route.query.status === 'edit')
 
+// 预览相关变量
+const audioShow = ref(false)
+const audioTitle = ref('')
+const audioUrl = ref('')
+const videoShow = ref(false)
+const videoTitle = ref('')
+const videoUrl = ref('')
+const videoCover = ref('')
+const isVideoPlaying = ref(false)
+const videoPlayerRef = ref(null)
+
 /**
  * 返回上一页
  */
@@ -305,6 +380,247 @@ const getTaskDetail = async (month) => {
 }
 
 /**
+ * van-uploader点击预览事件处理
+ * @param {Object} file - 文件对象
+ * @param {Object} detail - 详细信息
+ */
+const onClickPreview = (file, detail) => {
+    console.log('onClickPreview - file:', file)
+    console.log('onClickPreview - detail:', detail)
+    console.log('file对象的所有属性:', Object.keys(file))
+
+    const fileName = file.name || file.file?.name || ''
+
+    // 尝试多种方式获取文件URL
+    let fileUrl = ''
+
+    // 方式1: 直接从file对象获取
+    if (file.url) {
+        fileUrl = file.url
+        console.log('从file.url获取URL:', fileUrl)
+    }
+    // 方式2: 从file.content获取
+    else if (file.content) {
+        fileUrl = file.content
+        console.log('从file.content获取URL:', fileUrl)
+    }
+    // 方式3: 从file.objectURL获取
+    else if (file.objectURL) {
+        fileUrl = file.objectURL
+        console.log('从file.objectURL获取URL:', fileUrl)
+    }
+    // 方式4: 从file.file获取
+    else if (file.file) {
+        if (file.file.url) {
+            fileUrl = file.file.url
+            console.log('从file.file.url获取URL:', fileUrl)
+        } else {
+            // 创建临时URL
+            try {
+                fileUrl = URL.createObjectURL(file.file)
+                console.log('通过URL.createObjectURL创建URL:', fileUrl)
+            } catch (error) {
+                console.error('创建ObjectURL失败:', error)
+            }
+        }
+    }
+    // 方式5: 检查是否有其他可能的URL字段
+    else {
+        const possibleUrlFields = ['src', 'path', 'value', 'href', 'link']
+        for (const field of possibleUrlFields) {
+            if (file[field]) {
+                fileUrl = file[field]
+                console.log(`从file.${field}获取URL:`, fileUrl)
+                break
+            }
+        }
+    }
+
+    console.log('最终提取的文件名:', fileName)
+    console.log('最终提取的文件URL:', fileUrl)
+
+    if (!fileUrl) {
+        console.warn('文件URL不存在，文件对象完整结构:', JSON.stringify(file, null, 2))
+        showToast('无法获取文件URL，请检查文件是否上传成功')
+        return
+    }
+
+    // 根据打卡类型或文件扩展名判断文件类型
+    if (activeType.value === 'audio' || isAudioFile(fileName)) {
+        console.log('准备播放音频:', fileName, fileUrl)
+        showAudio(fileName, fileUrl)
+    } else if (activeType.value === 'video' || isVideoFile(fileName)) {
+        console.log('准备播放视频:', fileName, fileUrl)
+        showVideo(fileName, fileUrl)
+    } else {
+        console.log('该文件类型不支持预览，文件名:', fileName, '打卡类型:', activeType.value)
+        showToast('该文件类型不支持预览')
+    }
+}
+
+/**
+ * 预览文件
+ * @param {Object} item - 文件项
+ */
+const previewFile = (item) => {
+    console.log('previewFile - item:', item)
+    console.log('previewFile - item对象的所有属性:', Object.keys(item))
+
+    const fileName = item.name || item.file?.name || ''
+
+    // 尝试多种方式获取文件URL
+    let fileUrl = ''
+
+    // 方式1: 直接从item对象获取
+    if (item.url) {
+        fileUrl = item.url
+        console.log('从item.url获取URL:', fileUrl)
+    }
+    // 方式2: 从item.value获取
+    else if (item.value) {
+        fileUrl = item.value
+        console.log('从item.value获取URL:', fileUrl)
+    }
+    // 方式3: 从item.content获取
+    else if (item.content) {
+        fileUrl = item.content
+        console.log('从item.content获取URL:', fileUrl)
+    }
+    // 方式4: 从item.objectURL获取
+    else if (item.objectURL) {
+        fileUrl = item.objectURL
+        console.log('从item.objectURL获取URL:', fileUrl)
+    }
+    // 方式5: 从item.file获取
+    else if (item.file) {
+        if (item.file.url) {
+            fileUrl = item.file.url
+            console.log('从item.file.url获取URL:', fileUrl)
+        } else {
+            // 创建临时URL
+            try {
+                fileUrl = URL.createObjectURL(item.file)
+                console.log('通过URL.createObjectURL创建URL:', fileUrl)
+            } catch (error) {
+                console.error('创建ObjectURL失败:', error)
+            }
+        }
+    }
+    // 方式6: 检查是否有其他可能的URL字段
+    else {
+        const possibleUrlFields = ['src', 'path', 'href', 'link', 'downloadUrl', 'previewUrl']
+        for (const field of possibleUrlFields) {
+            if (item[field]) {
+                fileUrl = item[field]
+                console.log(`从item.${field}获取URL:`, fileUrl)
+                break
+            }
+        }
+    }
+
+    console.log('最终提取的文件名:', fileName)
+    console.log('最终提取的文件URL:', fileUrl)
+
+    if (!fileUrl) {
+        console.warn('文件URL不存在，文件对象完整结构:', JSON.stringify(item, null, 2))
+        showToast('无法获取文件URL，请检查文件是否上传成功')
+        return
+    }
+
+    // 根据打卡类型或文件扩展名判断文件类型
+    if (activeType.value === 'audio' || isAudioFile(fileName)) {
+        console.log('准备播放音频:', fileName, fileUrl)
+        showAudio(fileName, fileUrl)
+    } else if (activeType.value === 'video' || isVideoFile(fileName)) {
+        console.log('准备播放视频:', fileName, fileUrl)
+        showVideo(fileName, fileUrl)
+    } else {
+        console.log('该文件类型不支持预览，文件名:', fileName, '打卡类型:', activeType.value)
+        showToast('该文件类型不支持预览')
+    }
+}
+
+/**
+ * 判断是否为音频文件
+ * @param {string} fileName - 文件名
+ * @returns {boolean}
+ */
+const isAudioFile = (fileName) => {
+    const audioExtensions = ['.mp3', '.wav', '.ogg', '.aac', '.m4a', '.flac']
+    return audioExtensions.some(ext => fileName.toLowerCase().includes(ext))
+}
+
+/**
+ * 判断是否为视频文件
+ * @param {string} fileName - 文件名
+ * @returns {boolean}
+ */
+const isVideoFile = (fileName) => {
+    const videoExtensions = ['.mp4', '.avi', '.mov', '.wmv', '.flv', '.webm', '.mkv']
+    return videoExtensions.some(ext => fileName.toLowerCase().includes(ext))
+}
+
+/**
+ * 显示音频播放器
+ * @param {string} title - 音频标题
+ * @param {string} url - 音频URL
+ */
+const showAudio = (title, url) => {
+    audioTitle.value = title
+    audioUrl.value = url
+    audioShow.value = true
+}
+
+/**
+ * 显示视频播放器
+ * @param {string} title - 视频标题
+ * @param {string} url - 视频URL
+ * @param {string} cover - 视频封面URL（可选）
+ */
+const showVideo = (title, url, cover = '') => {
+    videoTitle.value = title
+    videoUrl.value = url
+    videoCover.value = cover
+    videoShow.value = true
+    isVideoPlaying.value = false // 重置播放状态
+}
+
+/**
+ * 开始播放视频
+ */
+const startVideoPlay = async () => {
+    isVideoPlaying.value = true
+    await nextTick()
+    if (videoPlayerRef.value) {
+        videoPlayerRef.value.play()
+    }
+}
+
+/**
+ * 处理视频播放事件
+ */
+const handleVideoPlay = () => {
+    isVideoPlaying.value = true
+}
+
+/**
+ * 处理视频暂停事件
+ */
+const handleVideoPause = () => {
+    // 保持视频播放器可见，只在初始状态显示封面
+}
+
+/**
+ * 停止视频播放
+ */
+const stopVideoPlay = () => {
+    if (videoPlayerRef.value && typeof videoPlayerRef.value.pause === 'function') {
+        videoPlayerRef.value.pause()
+    }
+    isVideoPlaying.value = false
+}
+
+/**
  * 页面挂载时的初始化逻辑
  */
 onMounted(async () => {
@@ -597,6 +913,14 @@ onMounted(async () => {
         align-items: center;
         flex: 1;
         gap: 0.5rem;
+        cursor: pointer;
+        padding: 0.5rem;
+        border-radius: 0.5rem;
+        transition: background-color 0.2s;
+
+        &:hover {
+            background-color: #f5f5f5;
+        }
     }
 
     .file-name {