接口联调

frontend-web/src/open-canvas/api/writing-export.ts

@@ -0,0 +1,69 @@
+import { apiFetch } from "@/core/api/fetch-client";
+import { getBackendBaseURL } from "@/core/config";
+
+function filenameFromContentDisposition(header: string | null): string | null {
+  if (!header) return null;
+  const star = /filename\*=(?:UTF-8'')?([^;]+)/i.exec(header);
+  if (star) {
+    const raw = star[1].replace(/["']/g, "").trim();
+    try {
+      return decodeURIComponent(raw);
+    } catch {
+      return raw;
+    }
+  }
+  const plain = /filename="?([^";\n]+)"?/i.exec(header);
+  return plain ? plain[1].trim() : null;
+}
+
+function sanitizeFallbackFilename(title: string | undefined): string {
+  const base = (title?.trim() || "document").replace(/[<>:"/\\|?*\x00-\x1f]+/g, "_");
+  return base.toLowerCase().endsWith(".docx") ? base : `${base}.docx`;
+}
+
+async function downloadBlobResponse(response: Response, fallbackFilename: string) {
+  if (!response.ok) {
+    const error = await response
+      .json()
+      .catch(() => ({ detail: "导出 Word 失败" }));
+    const detail = error.detail;
+    if (typeof detail === "string") throw new Error(detail);
+    throw new Error("导出 Word 失败");
+  }
+
+  const blob = await response.blob();
+  const filename =
+    filenameFromContentDisposition(response.headers.get("Content-Disposition")) ??
+    fallbackFilename;
+  const url = URL.createObjectURL(blob);
+  const anchor = document.createElement("a");
+  anchor.href = url;
+  anchor.download = filename;
+  anchor.rel = "noopener";
+  document.body.appendChild(anchor);
+  anchor.click();
+  anchor.remove();
+  window.setTimeout(() => URL.revokeObjectURL(url), 30_000);
+}
+
+/** 调用后端导出 AI 写作草稿为 Word，仅传正文 markdown，不传目录/大纲。 */
+export async function downloadAIWritingDocx(options: {
+  title?: string;
+  draftMarkdown: string;
+}): Promise<void> {
+  const draftMarkdown = options.draftMarkdown.trim();
+  if (!draftMarkdown) {
+    throw new Error("文档内容为空");
+  }
+
+  const response = await apiFetch(`${getBackendBaseURL()}/api/ai-writing/export/docx`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      title: options.title?.trim() || undefined,
+      draft_markdown: draftMarkdown,
+    }),
+  });
+
+  await downloadBlobResponse(response, sanitizeFallbackFilename(options.title));
+}