75 lines
2.5 KiB
TypeScript
75 lines
2.5 KiB
TypeScript
/**
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* 功能：配送合同 PDF 附件的上传、失败清理与鉴权预览客户端。
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* 版本：v1.0.0
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*/
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import { getToken } from '@/utils/auth';
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const gasApiBaseURL =
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import.meta.env.VITE_API_BASE_URL ||
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'http://localhost:12426/heqi/gas/v1';
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export type ContractAttachmentMetadata = {
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has_file: boolean;
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available: boolean;
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requires_reupload: boolean;
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display_name: string;
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version: string;
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};
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export type ContractAttachmentUploadReply = {
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receipt: string;
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cleanup_token: string;
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display_name: string;
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size: number;
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};
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type ApiEnvelope<T> = { code?: number; message?: string; details?: T };
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/** 返回当前登录凭证请求头。 */
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function authorizationHeaders(): Record<string, string> {
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const token = getToken();
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return token ? { Authorization: token } : {};
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}
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/** 上传经过前端预检的单个 PDF，服务端仍会验证真实内容。 */
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async function upload(file: File): Promise<ContractAttachmentUploadReply> {
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const form = new FormData();
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form.append('file', file);
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const response = await fetch(
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`${gasApiBaseURL}/gasorder_contract/attachment/upload`,
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{ method: 'POST', headers: authorizationHeaders(), body: form },
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);
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const payload = (await response.json()) as ApiEnvelope<ContractAttachmentUploadReply>;
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if (!response.ok || payload.code !== 0 || !payload.details) {
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throw new Error(payload.message || '合同附件上传失败');
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}
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return payload.details;
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}
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/** 使用受签名保护的清理凭证删除尚未绑定的临时文件。 */
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async function cleanup(cleanupToken: string): Promise<void> {
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const response = await fetch(
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`${gasApiBaseURL}/gasorder_contract/attachment/cleanup`,
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{
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method: 'POST',
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headers: { 'Content-Type': 'application/json', ...authorizationHeaders() },
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body: JSON.stringify({ cleanup_token: cleanupToken }),
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},
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);
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if (!response.ok) throw new Error('临时合同附件清理失败');
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const payload = (await response.json()) as ApiEnvelope<{ deleted: boolean }>;
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if (payload.code !== 0) throw new Error(payload.message || '临时合同附件清理失败');
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}
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/** 获取鉴权 PDF Blob；内部存储 URI 始终不会暴露给浏览器。 */
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async function load(identity: string): Promise<Blob> {
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const response = await fetch(
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`${gasApiBaseURL}/gasorder_contract/${encodeURIComponent(identity)}/attachment`,
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{ headers: authorizationHeaders() },
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);
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if (!response.ok) throw new Error('合同附件不可用，请重新上传');
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return response.blob();
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}
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export const contractAttachmentApi = { upload, cleanup, load };
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