49 lines
1.5 KiB
TypeScript
49 lines
1.5 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
|
||
import { auth } from "@/app/(auth)/auth";
|
||
import { callQwen3Vl } from "@/lib/ai/qwen3-vl";
|
||
import { createLogger } from "@/lib/observability/logger";
|
||
|
||
const logger = createLogger("canvas-auto-title");
|
||
|
||
export async function POST(request: NextRequest) {
|
||
logger.debug("request_received");
|
||
|
||
try {
|
||
const session = await auth();
|
||
if (!session?.user?.id) {
|
||
logger.warn("unauthorized");
|
||
return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
|
||
}
|
||
|
||
const { imageUrl } = await request.json();
|
||
|
||
if (!imageUrl) {
|
||
return NextResponse.json({ error: "Image URL is required" }, { status: 400 });
|
||
}
|
||
|
||
logger.debug("model_selected", { model: "qwen3-vl" });
|
||
|
||
// 构造 Prompt
|
||
const prompt = "请用2-4个字概括这张图片的主体内容，作为文件标题。直接返回标题，不要包含任何标点符号或其他文字。";
|
||
|
||
const { text, model } = await callQwen3Vl({
|
||
imageUrl,
|
||
prompt,
|
||
temperature: 0.2,
|
||
maxTokens: 50,
|
||
});
|
||
|
||
let title = (text || "").trim();
|
||
title = title.replace(/[\s\p{P}\p{S}]+/gu, "");
|
||
if (title.length > 4) title = title.slice(0, 4);
|
||
if (title.length < 2) title = "新画布";
|
||
logger.info("title_generated", { model, titleLength: title.length });
|
||
return NextResponse.json({ title });
|
||
|
||
} catch (error) {
|
||
logger.error("auto_title_failed", error);
|
||
// 失败时返回默认标题，不报错中断流程
|
||
return NextResponse.json({ title: "新画布" });
|
||
}
|
||
}
|