import axios from 'axios'
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import { getToken } from '@/utils/auth'
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import { getJavaApi } from '@/utils/java-api'
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import { resolveAttachmentUrl, validateAttachmentBlob } from '@/utils/attachment'
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export function reportFilename(value, extension) {
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const name = String(value || '报告').replace(/[\\/:*?"<>|\x00-\x1f]/g, '-').trim() || '报告'
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return name.replace(/\.(docx|pdf)$/i, '') + '.' + extension
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}
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// 只替换末尾扩展名，兼容目录名、报告编号中含小数点的历史文件。
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export function reportPdfPath(path) {
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return path.replace(/\.docx?$/i, '.pdf')
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}
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// 下单页沿用已有报告文件入口，鉴权信息只发送给本系统。
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export async function loadReportFile(path, signal) {
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const url = resolveAttachmentUrl(path, 2)
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const backend = new URL(getJavaApi(), window.location.origin)
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const target = new URL(url, window.location.origin)
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const isBackend = target.origin === backend.origin
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&& target.pathname.startsWith(backend.pathname.replace(/\/$/, '') + '/')
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const { data } = await axios.get(url, {
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responseType: 'blob', signal,
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headers: isBackend && getToken() ? { Authorization: 'Bearer ' + getToken() } : {}
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})
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return data
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}
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export async function validateReportPreview(blob, format) {
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if (!(blob instanceof Blob) || !blob.size) throw new Error('报告内容为空，请重试或联系管理员')
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await validateAttachmentBlob(blob, '报告.' + format)
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const header = new Uint8Array(await blob.slice(0, 5).arrayBuffer())
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const isPdf = String.fromCharCode(...header) === '%PDF-'
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const isDocx = header[0] === 0x50 && header[1] === 0x4b
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if (format === 'pdf' ? !isPdf : !isDocx) throw new Error('未获取到有效的报告文件，请重试或联系管理员')
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// 静态文件服务器可能返回 octet-stream，PDF 阅读器需要明确的 MIME 类型。
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return new Blob([blob], { type: format === 'pdf' ? 'application/pdf'
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: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document' })
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}
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