Upload files to "/"

storage.js

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+// 本地部署版本的存储封装：通过 fetch 调用本机 Express 服务的 API，
+// 数据最终落盘到 server/data.json。接口形态与 Claude artifacts 的
+// window.storage 保持一致（get 返回 {key, value}，不存在时 reject），
+// 这样上层业务代码（App.jsx）几乎不需要改动。
+
+const API_BASE = '/api/storage';
+
+export async function storageGet(key) {
+  const res = await fetch(`${API_BASE}/${encodeURIComponent(key)}`);
+  if (res.status === 404) {
+    throw new Error(`key not found: ${key}`);
+  }
+  if (!res.ok) {
+    throw new Error(`storage get failed: ${res.status}`);
+  }
+  const data = await res.json();
+  return { key, value: data.value };
+}
+
+export async function storageSet(key, value) {
+  const res = await fetch(`${API_BASE}/${encodeURIComponent(key)}`, {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ value }),
+  });
+  if (!res.ok) {
+    throw new Error(`storage set failed: ${res.status}`);
+  }
+  return res.json();
+}
+
+// 上传一个与客户相关的沟通附件（文件本身存到磁盘，元数据由调用方存进客户记录）
+export async function uploadFile(customerId, file) {
+  const fd = new FormData();
+  fd.append('file', file);
+  const res = await fetch(`/api/uploads/${encodeURIComponent(customerId)}`, {
+    method: 'POST',
+    body: fd,
+  });
+  if (!res.ok) {
+    throw new Error(`upload failed: ${res.status}`);
+  }
+  return res.json();
+}
+
+export async function deleteFile(customerId, fileName) {
+  const res = await fetch(`/api/uploads/${encodeURIComponent(customerId)}/${encodeURIComponent(fileName)}`, {
+    method: 'DELETE',
+  });
+  if (!res.ok) {
+    throw new Error(`delete failed: ${res.status}`);
+  }
+  return res.json();
+}
+
+export async function authCheck() {
+  const res = await fetch('/api/auth/check');
+  return res.json();
+}
+
+export async function authLogin(username, password) {
+  const res = await fetch('/api/auth/login', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ username, password }),
+  });
+  const data = await res.json().catch(() => ({}));
+  if (!res.ok) throw new Error(data.error || 'login failed');
+  return data;
+}
+
+export async function authLogout() {
+  const res = await fetch('/api/auth/logout', { method: 'POST' });
+  return res.json().catch(() => ({}));
+}
+
+export async function authChangePassword(currentPassword, newPassword) {
+  const res = await fetch('/api/auth/change-password', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ currentPassword, newPassword }),
+  });
+  const data = await res.json().catch(() => ({}));
+  if (!res.ok) throw new Error(data.error || 'change password failed');
+  return data;
+}
+
+export async function getAiConfig() {
+  const res = await fetch('/api/ai-config');
+  return res.json().catch(() => ({ hasKey: false }));
+}
+
+export async function saveAiConfig(apiKey) {
+  const res = await fetch('/api/ai-config', {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ apiKey }),
+  });
+  const data = await res.json().catch(() => ({}));
+  if (!res.ok) throw new Error(data.error || 'save failed');
+  return data;
+}
+
+export async function deleteAiConfig() {
+  const res = await fetch('/api/ai-config', { method: 'DELETE' });
+  return res.json().catch(() => ({}));
+}
+
+export async function testAiConfig() {
+  const res = await fetch('/api/ai-config/test', { method: 'POST' });
+  const data = await res.json().catch(() => ({}));
+  if (!res.ok) throw new Error(data.error || 'test failed');
+  return data;
+}
+
+export async function generateAiDraft(customerId, channel) {
+  const res = await fetch('/api/ai/draft', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ customerId, channel }),
+  });
+  const data = await res.json().catch(() => ({}));
+  if (!res.ok) throw new Error(data.error || 'generate failed');
+  return data;
+}
+
+// 批量上传PDF/图片形式的产品目录，后端OCR识别+DeepSeek解析后返回结构化的产品数组
+export async function parseCatalogFiles(files) {
+  const fd = new FormData();
+  Array.from(files).forEach((f) => fd.append('files', f));
+  const res = await fetch('/api/ai/parse-catalog', {
+    method: 'POST',
+    body: fd,
+  });
+  const data = await res.json().catch(() => ({}));
+  if (!res.ok) throw new Error(data.error || 'parse failed');
+  return data; // { products, ocrTextLength }
+}
+
+// 把一批中文词汇翻译成目标语言（en/fr/ru/es/ar），返回 {原词: 译文} 的映射。
+// 词条缓存由调用方（App.jsx）自己管理，这里只负责翻译本身。
+export async function translateTerms(terms, targetLang) {
+  const res = await fetch('/api/ai/translate-terms', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ terms, targetLang }),
+  });
+  const data = await res.json().catch(() => ({}));
+  if (!res.ok) throw new Error(data.error || 'translate failed');
+  return data.translations;
+}