661 lines
20 KiB
TypeScript
661 lines
20 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
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import { auth } from "@/app/(auth)/auth";
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import { db } from "@/lib/db";
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import {
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createMediaAssetRelation,
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getMediaAssetsByUserAndUrls,
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getSystemSetting,
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upsertMediaAsset,
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} from "@/lib/db/queries";
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import { generatedImage } from "@/lib/db/schema";
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import {
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ENHANCE_PRO_KREA_SETTING_KEY,
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normalizeEnhanceProKreaConfig,
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type EnhanceProKreaConfig,
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type EnhanceProKreaModel,
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type EnhanceProOutputFormat,
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type EnhanceProSubjectDetection,
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} from "@/lib/enhance-pro/config";
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import { uploadFile } from "@/lib/storage/service";
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const ENHANCE_PRO_CREATE_TIMEOUT_MS = 120_000;
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const ENHANCE_PRO_SYNC_WAIT_TIMEOUT_MS = 20_000;
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const ENHANCE_PRO_TASK_POLL_INTERVAL_MS = 1_500;
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const ENHANCE_PRO_MODEL_ID = "krea-topaz-generative";
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const ENHANCE_PRO_MAX_RESULT_IMAGES = 4;
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type EnhanceProRequestBody = {
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imageUrl?: string;
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image_base64?: string;
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mimeType?: string;
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prompt?: string;
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chatId?: string | null;
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messageId?: string | null;
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width?: number;
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height?: number;
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batchSize?: number;
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seed?: number;
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output_format?: EnhanceProOutputFormat;
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subject_detection?: EnhanceProSubjectDetection;
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face_enhancement?: boolean;
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face_enhancement_creativity?: number;
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face_enhancement_strength?: number;
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crop_to_fill?: boolean;
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model?: EnhanceProKreaModel;
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upscaling_activated?: boolean;
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image_scaling_factor?: number;
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creativity?: number;
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texture?: number;
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sharpen?: number;
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denoise?: number;
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detail?: number;
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};
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type FinalizedImageResult = {
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thumbnailUrl: string;
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originalUrl: string;
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width?: number;
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height?: number;
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};
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function clampNumber(value: unknown, min: number, max: number, fallback: number) {
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const parsed = Number(value);
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if (!Number.isFinite(parsed)) return fallback;
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return Math.min(max, Math.max(min, parsed));
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}
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function clampInteger(value: unknown, min: number, max: number, fallback: number) {
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return Math.round(clampNumber(value, min, max, fallback));
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}
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function normalizeBoolean(value: unknown, fallback = false) {
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if (typeof value === "boolean") return value;
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if (value === "true") return true;
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if (value === "false") return false;
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return fallback;
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}
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function normalizeJobStatus(value: unknown) {
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return String(value || "").trim().toLowerCase();
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}
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function buildEnhanceProTaskPendingResponse(taskId: string) {
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return NextResponse.json(
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{
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success: true,
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processing: true,
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status: "running",
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taskId,
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pollAfterMs: ENHANCE_PRO_TASK_POLL_INTERVAL_MS,
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},
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{ status: 202 }
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);
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}
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function normalizeBaseUrl(baseUrl: string) {
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return String(baseUrl || "").trim().replace(/\/+$/, "");
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}
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function sanitizeDimension(value: unknown, fallback: number) {
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return clampInteger(value, 1, 32000, fallback);
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}
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function clampDimensions(width: number, height: number, maxEdge: number) {
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const safeWidth = sanitizeDimension(width, 1024);
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const safeHeight = sanitizeDimension(height, 1024);
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const longestEdge = Math.max(safeWidth, safeHeight);
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if (longestEdge <= maxEdge) {
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return { width: safeWidth, height: safeHeight };
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}
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const scale = maxEdge / longestEdge;
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return {
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width: Math.max(1, Math.round(safeWidth * scale)),
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height: Math.max(1, Math.round(safeHeight * scale)),
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};
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}
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async function createThumbnail(buffer: Buffer): Promise<Buffer> {
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try {
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const sharp = await import("sharp");
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return await sharp.default(buffer)
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.resize(500, 500, {
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fit: "inside",
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withoutEnlargement: true,
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})
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.jpeg({ quality: 82 })
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.toBuffer();
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} catch (error) {
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console.error("[Enhance Pro] 生成缩略图失败，回退使用原图:", error);
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return buffer;
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}
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}
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async function uploadBufferPairToStorage(
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buffer: Buffer,
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mimeType = "image/jpeg",
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prefix = "enhance-pro",
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): Promise<{ thumbnail: string; original: string }> {
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const ext = mimeType.split("/")[1] || "jpg";
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const timestamp = Date.now();
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const randomStr = Math.random().toString(36).slice(2, 8);
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const originalFilename = `${prefix}-orig-${timestamp}-${randomStr}.${ext}`;
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const thumbnailFilename = `${prefix}-thumb-${timestamp}-${randomStr}.jpg`;
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const thumbnailBuffer = await createThumbnail(buffer);
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const [thumbnailResult, originalResult] = await Promise.all([
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uploadFile(
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thumbnailFilename,
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thumbnailBuffer.buffer.slice(
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thumbnailBuffer.byteOffset,
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thumbnailBuffer.byteOffset + thumbnailBuffer.byteLength,
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) as ArrayBuffer,
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),
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uploadFile(
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originalFilename,
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buffer.buffer.slice(buffer.byteOffset, buffer.byteOffset + buffer.byteLength) as ArrayBuffer,
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),
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]);
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return {
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thumbnail: thumbnailResult.url,
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original: originalResult.url,
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};
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}
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async function getImageDimensionsFromBuffer(buffer: Buffer) {
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try {
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const sharp = await import("sharp");
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const metadata = await sharp.default(buffer).metadata();
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return {
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width: metadata.width || 1024,
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height: metadata.height || 1024,
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};
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} catch (error) {
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console.error("[Enhance Pro] 获取图片尺寸失败，回退默认值:", error);
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return {
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width: 1024,
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height: 1024,
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};
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}
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}
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async function fetchBufferFromUrl(url: string) {
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const response = await fetch(url);
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if (!response.ok) {
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throw new Error(`无法下载图片资源: ${response.status} ${response.statusText}`);
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}
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const mimeType = response.headers.get("content-type") || "image/jpeg";
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const arrayBuffer = await response.arrayBuffer();
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return {
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buffer: Buffer.from(arrayBuffer),
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mimeType,
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};
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}
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async function resolveSourceInput(body: EnhanceProRequestBody) {
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const imageUrl = String(body.imageUrl || "").trim();
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const imageBase64 = String(body.image_base64 || "").trim();
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const requestedMimeType = String(body.mimeType || "").trim() || "image/jpeg";
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if (!imageUrl && !imageBase64) {
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throw new Error("缺少 imageUrl 或 image_base64 参数");
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}
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if (imageUrl) {
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const hasRequestedDimensions = Number.isFinite(Number(body.width)) && Number.isFinite(Number(body.height));
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if (hasRequestedDimensions) {
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return {
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sourceImageUrl: imageUrl,
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width: sanitizeDimension(body.width, 1024),
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height: sanitizeDimension(body.height, 1024),
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};
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}
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const downloaded = await fetchBufferFromUrl(imageUrl);
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const dimensions = await getImageDimensionsFromBuffer(downloaded.buffer);
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return {
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sourceImageUrl: imageUrl,
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width: dimensions.width,
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height: dimensions.height,
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};
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}
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const sourceBuffer = Buffer.from(imageBase64, "base64");
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const stored = await uploadBufferPairToStorage(sourceBuffer, requestedMimeType, "enhance-pro-source");
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const dimensions = await getImageDimensionsFromBuffer(sourceBuffer);
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return {
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sourceImageUrl: stored.original,
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width: dimensions.width,
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height: dimensions.height,
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};
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}
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async function createEnhanceProJob(params: {
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config: EnhanceProKreaConfig;
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requestBody: EnhanceProRequestBody;
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sourceImageUrl: string;
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width: number;
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height: number;
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}) {
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const apiUrl = normalizeBaseUrl(params.config.baseUrl);
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const requestPayload = {
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width: params.width,
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height: params.height,
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image_url: params.sourceImageUrl,
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batchSize: params.requestBody.batchSize,
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seed: params.requestBody.seed,
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prompt: String(params.requestBody.prompt || "").trim(),
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output_format: params.requestBody.output_format || params.config.defaultOutputFormat,
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subject_detection: params.requestBody.subject_detection || "All",
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face_enhancement: normalizeBoolean(params.requestBody.face_enhancement, false),
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face_enhancement_creativity: clampNumber(
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params.requestBody.face_enhancement_creativity,
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0,
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1,
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0.5,
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),
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face_enhancement_strength: clampNumber(
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params.requestBody.face_enhancement_strength,
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0,
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1,
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0.5,
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),
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crop_to_fill: normalizeBoolean(params.requestBody.crop_to_fill, false),
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model: params.requestBody.model || params.config.defaultModel,
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upscaling_activated: normalizeBoolean(params.requestBody.upscaling_activated, false),
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image_scaling_factor: clampNumber(params.requestBody.image_scaling_factor, 1, 32, 1),
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creativity: clampInteger(params.requestBody.creativity, 1, 6, 3),
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texture: clampInteger(params.requestBody.texture, 1, 5, 3),
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sharpen: clampNumber(params.requestBody.sharpen, 0, 1, 0.5),
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denoise: clampNumber(params.requestBody.denoise, 0, 1, 0.5),
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detail: clampNumber(params.requestBody.detail, 0, 1, 0.5),
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};
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const controller = new AbortController();
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const timeoutId = setTimeout(() => controller.abort(), ENHANCE_PRO_CREATE_TIMEOUT_MS);
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try {
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const response = await fetch(`${apiUrl}/generate/enhance/topaz/generative-enhance`, {
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method: "POST",
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headers: {
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"Content-Type": "application/json",
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Authorization: `Bearer ${params.config.apiKey}`,
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},
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body: JSON.stringify(requestPayload),
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signal: controller.signal,
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});
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if (!response.ok) {
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const detail = await response.text();
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throw new Error(`创建任务失败: ${response.status} ${detail || response.statusText}`);
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}
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return await response.json();
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} finally {
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clearTimeout(timeoutId);
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}
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}
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async function pollEnhanceProJob(
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config: EnhanceProKreaConfig,
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jobId: string,
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delay = ENHANCE_PRO_TASK_POLL_INTERVAL_MS,
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timeout = ENHANCE_PRO_SYNC_WAIT_TIMEOUT_MS,
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): Promise<any> {
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const apiUrl = normalizeBaseUrl(config.baseUrl);
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const response = await fetch(`${apiUrl}/jobs/${jobId}`, {
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method: "GET",
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headers: {
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Authorization: `Bearer ${config.apiKey}`,
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},
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cache: "no-store",
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});
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if (!response.ok) {
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const detail = await response.text();
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throw new Error(`查询任务状态失败: ${response.status} ${detail || response.statusText}`);
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}
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const payload = await response.json();
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const status = normalizeJobStatus(payload?.status);
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if (status === "completed") {
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return payload;
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}
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if (status === "failed" || status === "cancelled") {
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throw new Error(`Krea 任务${status === "failed" ? "失败" : "已取消"}`);
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}
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if (timeout <= 0) {
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throw new Error("轮询超时");
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}
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await new Promise((resolve) => setTimeout(resolve, delay));
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return pollEnhanceProJob(config, jobId, delay, timeout - delay);
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}
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function isEnhanceProTaskStillProcessing(error: unknown) {
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return error instanceof Error && /轮询超时/i.test(error.message || "");
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}
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async function saveGeneratedImageRecord(params: {
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userId: string;
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chatId?: string | null;
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messageId?: string | null;
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prompt: string;
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originalUrl: string;
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thumbnailUrl: string;
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imageSize: string;
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}) {
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const [savedImage] = await db
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.insert(generatedImage)
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.values({
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userId: params.userId,
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chatId: params.chatId || null,
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messageId: params.messageId || null,
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thumbnailUrl: params.thumbnailUrl,
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originalUrl: params.originalUrl,
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imageSize: params.imageSize,
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prompt: params.prompt,
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modelId: ENHANCE_PRO_MODEL_ID,
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})
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.returning();
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return savedImage;
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}
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async function finalizeEnhanceProTaskResult(params: {
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userId: string;
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taskResult: any;
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prompt?: string;
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chatId?: string | null;
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messageId?: string | null;
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startedAt?: number;
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sourceImageUrls?: string[];
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width: number;
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height: number;
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}) {
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const resultUrls = Array.isArray(params.taskResult?.result?.urls)
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? params.taskResult.result.urls.filter((url: unknown) => typeof url === "string" && url)
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: [];
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if (resultUrls.length === 0) {
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throw new Error("Krea 任务未返回结果图片");
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}
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const limitedUrls = resultUrls.slice(0, ENHANCE_PRO_MAX_RESULT_IMAGES);
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const finalPrompt = String(params.prompt || "").trim() || "图像增强 Pro";
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const imageSize = `${params.width}x${params.height}`;
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const sourceAssets =
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Array.isArray(params.sourceImageUrls) && params.sourceImageUrls.length > 0
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? await getMediaAssetsByUserAndUrls({
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userId: params.userId,
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urls: params.sourceImageUrls,
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})
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: [];
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const finalizedImages: FinalizedImageResult[] = [];
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for (const url of limitedUrls) {
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const downloaded = await fetchBufferFromUrl(url);
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const uploaded = await uploadBufferPairToStorage(downloaded.buffer, downloaded.mimeType, "enhance-pro");
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const savedImage = await saveGeneratedImageRecord({
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userId: params.userId,
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chatId: params.chatId,
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messageId: params.messageId,
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prompt: finalPrompt,
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originalUrl: uploaded.original,
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thumbnailUrl: uploaded.thumbnail,
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imageSize,
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});
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try {
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const media = await upsertMediaAsset({
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userId: params.userId,
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chatId: params.chatId || null,
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mediaType: "image",
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sourceType: "edited",
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status: "ready",
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originalUrl: uploaded.original,
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previewUrl: uploaded.original,
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thumbnailUrl: uploaded.thumbnail,
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displayName: finalPrompt.slice(0, 80),
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prompt: finalPrompt,
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modelId: ENHANCE_PRO_MODEL_ID,
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sourceMessageId: params.messageId || null,
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sourceTable: "GeneratedImage",
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sourceRowId: savedImage.id,
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primaryParentAssetId: sourceAssets[0]?.id ?? null,
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metadata: {
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imageSize,
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provider: "krea-topaz-generative",
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},
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});
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if (media) {
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for (const sourceAsset of sourceAssets) {
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await createMediaAssetRelation({
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userId: params.userId,
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chatId: params.chatId || null,
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fromAssetId: sourceAsset.id,
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toAssetId: media.id,
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relationType: "edited_from",
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sourceMessageId: params.messageId || null,
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metadata: {
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prompt: finalPrompt,
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},
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});
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}
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}
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} catch (assetError) {
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console.error("[Enhance Pro] MediaAsset 注册失败:", assetError);
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}
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finalizedImages.push({
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thumbnailUrl: uploaded.thumbnail,
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originalUrl: uploaded.original,
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width: params.width,
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height: params.height,
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});
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}
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const processingTime =
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typeof params.startedAt === "number" ? (Date.now() - params.startedAt) / 1000 : undefined;
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return {
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success: true,
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images: finalizedImages.map((image, index) => ({
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index,
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thumbnail_url: image.thumbnailUrl,
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original_url: image.originalUrl,
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width: image.width,
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height: image.height,
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})),
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thumbnail_url: finalizedImages[0]?.thumbnailUrl || null,
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original_url: finalizedImages[0]?.originalUrl || null,
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processing_time: processingTime,
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model_id: ENHANCE_PRO_MODEL_ID,
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};
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}
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async function loadEnhanceProConfig() {
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const setting = await getSystemSetting({ key: ENHANCE_PRO_KREA_SETTING_KEY });
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const existingValue =
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setting?.value && typeof setting.value === "object"
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? (setting.value as Record<string, unknown>)
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: {};
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return normalizeEnhanceProKreaConfig(setting?.value, String(existingValue.apiKey || ""));
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}
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export const maxDuration = 180;
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export async function GET(request: NextRequest) {
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try {
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const session = await auth();
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if (!session?.user?.id) {
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return NextResponse.json({ error: "未授权，请先登录" }, { status: 401 });
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}
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const { searchParams } = new URL(request.url);
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const taskId = String(searchParams.get("taskId") || "").trim();
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if (!taskId) {
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return NextResponse.json({ error: "缺少 taskId 参数" }, { status: 400 });
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}
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const config = await loadEnhanceProConfig();
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if (!config.enabled) {
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return NextResponse.json({ error: "图像增强 Pro 功能未开启" }, { status: 403 });
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}
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if (!config.apiKey || !config.baseUrl) {
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return NextResponse.json({ error: "图像增强 Pro API 尚未配置" }, { status: 400 });
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}
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let taskResult: any;
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try {
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taskResult = await pollEnhanceProJob(config, taskId);
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} catch (pollError) {
|
|
if (isEnhanceProTaskStillProcessing(pollError)) {
|
|
return buildEnhanceProTaskPendingResponse(taskId);
|
|
}
|
|
return NextResponse.json(
|
|
{
|
|
error: "图像增强 Pro 处理失败",
|
|
detail: pollError instanceof Error ? pollError.message : "轮询失败",
|
|
},
|
|
{ status: 500 },
|
|
);
|
|
}
|
|
|
|
const width = sanitizeDimension(searchParams.get("width"), 1024);
|
|
const height = sanitizeDimension(searchParams.get("height"), 1024);
|
|
const responsePayload = await finalizeEnhanceProTaskResult({
|
|
userId: session.user.id,
|
|
taskResult,
|
|
prompt: searchParams.get("prompt") || "图像增强 Pro",
|
|
chatId: searchParams.get("chatId"),
|
|
messageId: searchParams.get("messageId"),
|
|
sourceImageUrls: searchParams.get("sourceImageUrl")
|
|
? [String(searchParams.get("sourceImageUrl"))]
|
|
: undefined,
|
|
width,
|
|
height,
|
|
});
|
|
|
|
return NextResponse.json(responsePayload);
|
|
} catch (error) {
|
|
console.error("[Enhance Pro API][TaskStatus] 错误:", error);
|
|
return NextResponse.json(
|
|
{ error: "服务器内部错误", detail: error instanceof Error ? error.message : "未知错误" },
|
|
{ status: 500 },
|
|
);
|
|
}
|
|
}
|
|
|
|
export async function POST(request: NextRequest) {
|
|
try {
|
|
const session = await auth();
|
|
if (!session?.user?.id) {
|
|
return NextResponse.json({ error: "未授权，请先登录" }, { status: 401 });
|
|
}
|
|
|
|
const config = await loadEnhanceProConfig();
|
|
if (!config.enabled) {
|
|
return NextResponse.json({ error: "图像增强 Pro 功能未开启" }, { status: 403 });
|
|
}
|
|
if (!config.apiKey || !config.baseUrl) {
|
|
return NextResponse.json({ error: "图像增强 Pro API 尚未配置" }, { status: 400 });
|
|
}
|
|
|
|
const body = (await request.json()) as EnhanceProRequestBody;
|
|
const prompt = String(body.prompt || "").trim();
|
|
const chatId = body.chatId || null;
|
|
const messageId = body.messageId || null;
|
|
const sourceInput = await resolveSourceInput(body);
|
|
|
|
const requestedWidth = sanitizeDimension(body.width, sourceInput.width);
|
|
const requestedHeight = sanitizeDimension(body.height, sourceInput.height);
|
|
const clampedDimensions = clampDimensions(
|
|
requestedWidth,
|
|
requestedHeight,
|
|
config.maxOutputEdge,
|
|
);
|
|
|
|
const batchSize = config.allowBatchSize
|
|
? clampInteger(body.batchSize, 1, config.maxBatchSize, 1)
|
|
: 1;
|
|
|
|
const startTime = Date.now();
|
|
const createdJob = await createEnhanceProJob({
|
|
config,
|
|
requestBody: {
|
|
...body,
|
|
batchSize,
|
|
},
|
|
sourceImageUrl: sourceInput.sourceImageUrl,
|
|
width: clampedDimensions.width,
|
|
height: clampedDimensions.height,
|
|
});
|
|
|
|
const createdStatus = normalizeJobStatus(createdJob?.status);
|
|
const taskId = String(createdJob?.job_id || "").trim();
|
|
if (!taskId) {
|
|
return NextResponse.json(
|
|
{ error: "创建图像增强 Pro 任务失败", detail: "Krea 未返回 job_id" },
|
|
{ status: 500 },
|
|
);
|
|
}
|
|
|
|
if (createdStatus === "completed") {
|
|
const responsePayload = await finalizeEnhanceProTaskResult({
|
|
userId: session.user.id,
|
|
taskResult: createdJob,
|
|
prompt,
|
|
chatId,
|
|
messageId,
|
|
startedAt: startTime,
|
|
sourceImageUrls: [sourceInput.sourceImageUrl],
|
|
width: clampedDimensions.width,
|
|
height: clampedDimensions.height,
|
|
});
|
|
return NextResponse.json(responsePayload);
|
|
}
|
|
|
|
try {
|
|
const taskResult = await pollEnhanceProJob(config, taskId);
|
|
const responsePayload = await finalizeEnhanceProTaskResult({
|
|
userId: session.user.id,
|
|
taskResult,
|
|
prompt,
|
|
chatId,
|
|
messageId,
|
|
startedAt: startTime,
|
|
sourceImageUrls: [sourceInput.sourceImageUrl],
|
|
width: clampedDimensions.width,
|
|
height: clampedDimensions.height,
|
|
});
|
|
return NextResponse.json(responsePayload);
|
|
} catch (pollError) {
|
|
if (isEnhanceProTaskStillProcessing(pollError)) {
|
|
return buildEnhanceProTaskPendingResponse(taskId);
|
|
}
|
|
|
|
return NextResponse.json(
|
|
{
|
|
error: "图像增强 Pro 处理失败",
|
|
detail: pollError instanceof Error ? pollError.message : "轮询失败",
|
|
},
|
|
{ status: 500 },
|
|
);
|
|
}
|
|
} catch (error) {
|
|
console.error("[Enhance Pro API] 错误:", error);
|
|
return NextResponse.json(
|
|
{ error: "服务器内部错误", detail: error instanceof Error ? error.message : "未知错误" },
|
|
{ status: 500 },
|
|
);
|
|
}
|
|
}
|