458 lines
9.3 KiB
Vue
458 lines
9.3 KiB
Vue
<template>
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<div class="file-message">
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<div
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class="file-container"
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@click="handleFileClick"
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:class="{ 'clickable': isPreviewable }"
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>
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<div class="file-icon">
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<Icon :name="fileIcon" size="md" />
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</div>
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<div class="file-info">
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<div class="file-name">{{ file.original_name }}</div>
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<div class="file-meta">
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<span class="file-size">{{ formatFileSize(file.file_size) }}</span>
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<span class="file-type">{{ file.file_type }}</span>
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</div>
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<div v-if="isPreviewable" class="preview-hint">
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Click to preview
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</div>
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</div>
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<button
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@click.stop="downloadFile"
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class="download-button"
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title="Download"
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>
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<Icon name="download" size="sm" />
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</button>
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</div>
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<!-- File preview modal -->
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<teleport to="body">
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<div
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v-if="showPreview"
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class="file-modal"
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@click="showPreview = false"
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@keydown.escape="showPreview = false"
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>
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<div class="modal-content" @click.stop>
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<div class="modal-header">
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<h3>{{ file.original_name }}</h3>
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<button @click="showPreview = false" class="close-button">
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<Icon name="x" size="sm" />
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</button>
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</div>
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<div class="preview-container">
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<!-- Text preview -->
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<div v-if="isTextFile && previewContent" class="text-preview">
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<pre>{{ previewContent }}</pre>
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</div>
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<!-- PDF preview -->
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<iframe
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v-else-if="isPdfFile"
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:src="fileUrl"
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class="pdf-preview"
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></iframe>
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<!-- Generic file info -->
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<div v-else class="file-details">
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<Icon :name="fileIcon" size="xl" />
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<p>Cannot preview this file type</p>
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<button @click="downloadFile" class="download-file-button">
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<Icon name="download" size="sm" />
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Download File
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</button>
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</div>
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</div>
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</div>
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</div>
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</teleport>
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</div>
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</template>
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<script setup lang="ts">
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import { ref, computed } from 'vue'
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import { apiService } from '@/services/api'
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import Icon from '@/components/base/Icon.vue'
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import type { FileAttachment } from '@/types'
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interface Props {
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file: FileAttachment
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}
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const props = defineProps<Props>()
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const showPreview = ref(false)
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const previewContent = ref<string>('')
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const loading = ref(false)
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const fileUrl = computed(() => apiService.getFileUrl(props.file.file_path))
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const fileExtension = computed(() => {
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return props.file.original_name.split('.').pop()?.toLowerCase() || ''
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})
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const fileIcon = computed(() => {
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const ext = fileExtension.value
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if (['pdf'].includes(ext)) {
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return 'file-text'
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} else if (['doc', 'docx'].includes(ext)) {
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return 'file-text'
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} else if (['xls', 'xlsx'].includes(ext)) {
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return 'table'
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} else if (['zip', 'rar', '7z'].includes(ext)) {
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return 'archive'
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} else if (['txt', 'md', 'json', 'xml', 'csv'].includes(ext)) {
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return 'file-text'
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} else {
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return 'file'
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}
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})
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const isTextFile = computed(() => {
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const textExtensions = ['txt', 'md', 'json', 'xml', 'csv', 'log', 'js', 'ts', 'css', 'html']
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return textExtensions.includes(fileExtension.value)
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})
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const isPdfFile = computed(() => {
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return fileExtension.value === 'pdf'
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})
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const isPreviewable = computed(() => {
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return isTextFile.value || isPdfFile.value
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})
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const handleFileClick = async () => {
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if (!isPreviewable.value) {
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downloadFile()
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return
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}
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if (isTextFile.value && !previewContent.value) {
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await loadTextPreview()
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}
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showPreview.value = true
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}
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const loadTextPreview = async () => {
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try {
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loading.value = true
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const response = await fetch(fileUrl.value)
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const text = await response.text()
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// Limit preview size to prevent UI issues
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if (text.length > 50000) {
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previewContent.value = text.slice(0, 50000) + '\n\n... (file truncated for preview)'
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} else {
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previewContent.value = text
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}
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} catch (error) {
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console.error('Failed to load file preview:', error)
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previewContent.value = 'Error loading file preview'
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} finally {
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loading.value = false
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}
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}
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const downloadFile = async () => {
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try {
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const response = await fetch(fileUrl.value)
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const blob = await response.blob()
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const blobUrl = URL.createObjectURL(blob)
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const link = document.createElement('a')
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link.href = blobUrl
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link.download = props.file.original_name
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link.click()
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// Clean up the blob URL after download
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setTimeout(() => URL.revokeObjectURL(blobUrl), 100)
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} catch (error) {
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console.error('Failed to download file:', error)
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// Fallback to direct link
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const link = document.createElement('a')
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link.href = fileUrl.value
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link.download = props.file.original_name
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link.target = '_blank'
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link.click()
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}
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}
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const formatFileSize = (bytes: number): string => {
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if (bytes === 0) return '0 B'
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const k = 1024
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const sizes = ['B', 'KB', 'MB', 'GB']
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const i = Math.floor(Math.log(bytes) / Math.log(k))
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return parseFloat((bytes / Math.pow(k, i)).toFixed(1)) + ' ' + sizes[i]
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}
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</script>
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<style scoped>
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.file-message {
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margin: 0.5rem 0;
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max-width: 400px;
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}
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.file-container {
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display: flex;
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align-items: center;
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gap: 0.75rem;
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background: #f3f4f6;
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border: 1px solid #d1d5db;
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border-radius: 8px;
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padding: 0.75rem;
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transition: all 0.2s ease;
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}
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.file-container.clickable {
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cursor: pointer;
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}
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.file-container.clickable:hover {
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background: #e5e7eb;
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border-color: #3b82f6;
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transform: translateY(-1px);
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}
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.file-icon {
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display: flex;
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align-items: center;
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justify-content: center;
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width: 48px;
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height: 48px;
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background: #3b82f6;
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color: white;
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border-radius: 8px;
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flex-shrink: 0;
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}
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.file-info {
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flex: 1;
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min-width: 0;
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}
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.file-name {
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font-weight: 500;
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color: #374151;
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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margin-bottom: 0.25rem;
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}
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.file-meta {
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display: flex;
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gap: 0.5rem;
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font-size: 0.75rem;
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color: #6b7280;
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}
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.preview-hint {
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font-size: 0.75rem;
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color: #3b82f6;
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margin-top: 0.25rem;
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}
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.download-button {
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display: flex;
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align-items: center;
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justify-content: center;
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width: 36px;
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height: 36px;
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background: transparent;
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color: #6b7280;
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border: 1px solid #d1d5db;
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border-radius: 6px;
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cursor: pointer;
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transition: all 0.2s ease;
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flex-shrink: 0;
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}
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.download-button:hover {
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background: #f9fafb;
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color: #374151;
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border-color: #9ca3af;
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}
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/* Modal styles */
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.file-modal {
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position: fixed;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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background: rgba(0, 0, 0, 0.7);
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display: flex;
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align-items: center;
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justify-content: center;
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z-index: 1000;
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cursor: pointer;
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}
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.modal-content {
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background: white;
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border-radius: 12px;
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max-width: 90vw;
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max-height: 90vh;
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display: flex;
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flex-direction: column;
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cursor: default;
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}
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.modal-header {
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display: flex;
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justify-content: space-between;
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align-items: center;
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padding: 1rem;
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border-bottom: 1px solid #e5e7eb;
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}
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.modal-header h3 {
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margin: 0;
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font-size: 1.125rem;
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font-weight: 600;
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color: #374151;
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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}
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.close-button {
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background: transparent;
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border: none;
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cursor: pointer;
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padding: 0.25rem;
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color: #6b7280;
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}
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.close-button:hover {
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color: #374151;
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}
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.preview-container {
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flex: 1;
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overflow: auto;
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padding: 1rem;
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}
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.text-preview {
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max-height: 70vh;
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overflow: auto;
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}
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.text-preview pre {
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white-space: pre-wrap;
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word-wrap: break-word;
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font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
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font-size: 0.875rem;
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line-height: 1.4;
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color: #374151;
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margin: 0;
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}
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.pdf-preview {
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width: 100%;
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height: 70vh;
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border: none;
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}
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.file-details {
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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padding: 2rem;
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text-align: center;
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color: #6b7280;
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}
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.download-file-button {
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display: flex;
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align-items: center;
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gap: 0.5rem;
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background: #3b82f6;
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color: white;
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border: none;
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border-radius: 6px;
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padding: 0.75rem 1.5rem;
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cursor: pointer;
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margin-top: 1rem;
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transition: background 0.2s ease;
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}
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.download-file-button:hover {
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background: #2563eb;
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}
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/* Dark mode */
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@media (prefers-color-scheme: dark) {
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.file-container {
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background: #374151;
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border-color: #4b5563;
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}
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.file-container.clickable:hover {
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background: #4b5563;
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border-color: #60a5fa;
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}
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.file-name {
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color: rgba(255, 255, 255, 0.87);
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}
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.file-meta {
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color: rgba(255, 255, 255, 0.6);
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}
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.preview-hint {
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color: #60a5fa;
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}
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.download-button {
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color: rgba(255, 255, 255, 0.6);
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border-color: #4b5563;
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}
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.download-button:hover {
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background: #4b5563;
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color: rgba(255, 255, 255, 0.87);
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border-color: #6b7280;
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}
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.modal-content {
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background: #1f2937;
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}
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.modal-header {
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border-bottom-color: #374151;
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}
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.modal-header h3 {
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color: rgba(255, 255, 255, 0.87);
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}
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.close-button {
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color: rgba(255, 255, 255, 0.6);
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}
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.close-button:hover {
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color: rgba(255, 255, 255, 0.87);
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}
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.text-preview pre {
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color: rgba(255, 255, 255, 0.87);
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}
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.file-details {
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color: rgba(255, 255, 255, 0.6);
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}
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}
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</style> |