fix: fallback ai detail plan on planner abort timeout
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153efc8f96
@ -9,7 +9,26 @@ import { isAiModelMultimodal } from "@/lib/db/ai-model-flags";
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import { getLanguageModelById } from "@/lib/ai/dynamic-provider";
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export const runtime = "nodejs";
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export const maxDuration = 60;
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export const maxDuration = 180;
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function isAbortError(error: unknown): boolean {
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const target = error as {
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name?: unknown;
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message?: unknown;
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code?: unknown;
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ABORT_ERR?: unknown;
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};
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const name = String(target?.name || "");
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const message = String(target?.message || "");
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const code = Number(target?.code);
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const abortCode = Number(target?.ABORT_ERR);
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return (
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name === "AbortError" ||
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code === 20 ||
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abortCode === 20 ||
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/aborted|abort/i.test(message)
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);
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}
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function supportsVisionPlanning(model: {
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supportsVision?: boolean | null;
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@ -1054,45 +1073,77 @@ export async function POST(request: Request) {
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? referenceImages.map((url) => ({ type: "image" as const, image: url }))
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: [];
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const { text } = await generateText({
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model,
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messages: [
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{
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role: "user",
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content: [
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{
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type: "text",
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text: userInput,
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let text = "";
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try {
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const result = await generateText({
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model,
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messages: [
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{
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role: "user",
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content: [
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{
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type: "text",
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text: userInput,
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},
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...imageInputs,
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],
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},
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],
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system:
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`你是资深电商视觉策划与提示词工程师。请为“AI详情生成”产出可直接用于生图的分镜提示词和文案。\n` +
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`硬性要求：\n` +
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`1) 输出严格 JSON，不要其他文本。\n` +
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`2) 保持同一产品一致性（结构、颜色、材质、Logo、比例）。\n` +
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`3) 所有分镜风格统一、构图统一、文案排版风格统一。主标题/副标题/正文的字体家族、字重、字号层级、行距必须全套统一。\n` +
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`4) 每屏尺寸固定 790x1300 像素，输出提示词必须显式包含该尺寸约束。\n` +
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`5) 结构遵循“黄金五屏原则”：屏1-2核心卖点，屏3-4差异强化，屏5证据背书；更多屏作为延展。\n` +
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`6) 每屏都要有 FABE 闭环（B利益/F特征/A优势/E证据），且文案符合电商转化表达。\n` +
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`7) 文案用词需贴近用户语言，不写空泛形容词，不泄露系统流程。\n` +
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`8) 对每屏输出 useModel 与 modelReason：useModel=true 表示该屏必须融入固定模特图人物；false 表示该屏禁止出现人物。\n` +
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`9) 对每屏输出 screenType（A/B/C）：A=技术公信，B=场景共鸣，C=细节佐证。\n` +
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`10) 主标题必须是卖点语义，不得出现“第1屏/Screen 1”等编号标识，建议4-10字。\n` +
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`11) 在 globalStyle.typography 中写明明确字号与字重（示例：主标题64px/700，副标题34px/600，正文24px/500），并在每屏 layoutNote 里落实排版层级。\n` +
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(hasModelImage
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? `12) 已提供模特图：涉及人物场景时必须复用同一模特（人脸、发型、体型、肤色与服装风格一致），不得替换其他人物。\n`
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: `12) 未提供模特图：所有分镜均设置 useModel=false。\n`) +
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(hasBundleImages
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? `13) 已提供搭配产品图：必须新增且仅新增1屏“场景化产品搭配展示”，该屏设定 bundleShowcase=true，并在 bundleReason 说明搭配策略；其余屏设为 bundleShowcase=false。\n`
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: `13) 未提供搭配产品图：所有分镜均设置 bundleShowcase=false。\n`) +
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`输出格式：\n` +
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`{"summary":"简述","globalStyle":{"designLanguage":"一句话风格方向","typography":{"fontFamily":"字体家族","title":"主标题规范","subtitle":"副标题规范","body":"正文规范"},"layout":{"grid":"栅格","safeArea":"安全区","rhythm":"留白节奏"},"palette":"配色规范"},"screens":[{"index":1,"screenType":"B","objective":"本屏目标","title":"4-8字标题","subtitle":"一句副标题","copy":"正文文案","layoutNote":"排版说明","useModel":false,"modelReason":"是否需要人物及原因","bundleShowcase":false,"bundleReason":"是否为搭配展示页及原因","fabe":{"b":"利益","f":"特征","a":"优势","e":"证据"},"visualPrompt":"用于生图的完整提示词，必须包含790x1300与统一字体排版"}]}`,
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temperature: 0.25,
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maxTokens: 1800,
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} as any);
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text = String(result?.text || "");
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} catch (error) {
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if (isAbortError(error)) {
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console.error("[Canvas Detail Plan] Primary planning aborted, fallback applied:", error);
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return NextResponse.json({
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success: true,
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data: {
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...fallback,
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summary: `${fallback.summary}\n规划模型超时，已回退到稳定分镜模板。`,
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qualityChecks: {
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passed: false,
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issues: ["规划模型调用超时，已自动回退到稳定分镜模板。"],
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},
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...imageInputs,
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],
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},
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],
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system:
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`你是资深电商视觉策划与提示词工程师。请为“AI详情生成”产出可直接用于生图的分镜提示词和文案。\n` +
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`硬性要求：\n` +
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`1) 输出严格 JSON，不要其他文本。\n` +
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`2) 保持同一产品一致性（结构、颜色、材质、Logo、比例）。\n` +
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`3) 所有分镜风格统一、构图统一、文案排版风格统一。主标题/副标题/正文的字体家族、字重、字号层级、行距必须全套统一。\n` +
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`4) 每屏尺寸固定 790x1300 像素，输出提示词必须显式包含该尺寸约束。\n` +
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`5) 结构遵循“黄金五屏原则”：屏1-2核心卖点，屏3-4差异强化，屏5证据背书；更多屏作为延展。\n` +
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`6) 每屏都要有 FABE 闭环（B利益/F特征/A优势/E证据），且文案符合电商转化表达。\n` +
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`7) 文案用词需贴近用户语言，不写空泛形容词，不泄露系统流程。\n` +
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`8) 对每屏输出 useModel 与 modelReason：useModel=true 表示该屏必须融入固定模特图人物；false 表示该屏禁止出现人物。\n` +
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`9) 对每屏输出 screenType（A/B/C）：A=技术公信，B=场景共鸣，C=细节佐证。\n` +
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`10) 主标题必须是卖点语义，不得出现“第1屏/Screen 1”等编号标识，建议4-10字。\n` +
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`11) 在 globalStyle.typography 中写明明确字号与字重（示例：主标题64px/700，副标题34px/600，正文24px/500），并在每屏 layoutNote 里落实排版层级。\n` +
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(hasModelImage
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? `12) 已提供模特图：涉及人物场景时必须复用同一模特（人脸、发型、体型、肤色与服装风格一致），不得替换其他人物。\n`
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: `12) 未提供模特图：所有分镜均设置 useModel=false。\n`) +
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(hasBundleImages
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? `13) 已提供搭配产品图：必须新增且仅新增1屏“场景化产品搭配展示”，该屏设定 bundleShowcase=true，并在 bundleReason 说明搭配策略；其余屏设为 bundleShowcase=false。\n`
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: `13) 未提供搭配产品图：所有分镜均设置 bundleShowcase=false。\n`) +
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`输出格式：\n` +
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`{"summary":"简述","globalStyle":{"designLanguage":"一句话风格方向","typography":{"fontFamily":"字体家族","title":"主标题规范","subtitle":"副标题规范","body":"正文规范"},"layout":{"grid":"栅格","safeArea":"安全区","rhythm":"留白节奏"},"palette":"配色规范"},"screens":[{"index":1,"screenType":"B","objective":"本屏目标","title":"4-8字标题","subtitle":"一句副标题","copy":"正文文案","layoutNote":"排版说明","useModel":false,"modelReason":"是否需要人物及原因","bundleShowcase":false,"bundleReason":"是否为搭配展示页及原因","fabe":{"b":"利益","f":"特征","a":"优势","e":"证据"},"visualPrompt":"用于生图的完整提示词，必须包含790x1300与统一字体排版"}]}`,
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temperature: 0.25,
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maxTokens: 1800,
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} as any);
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model: {
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id: plannerConfig.model.id,
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displayName: plannerConfig.model.displayName,
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providerType: plannerConfig.provider.type,
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},
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preflight: {
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passed: false,
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designDirectorScore: 0,
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marketingDirectorScore: 0,
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issues: ["规划阶段超时，已启用稳定模板回退。"],
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rewriteApplied: false,
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},
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},
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});
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}
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throw error;
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}
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const parsed = extractJsonBlock<{ summary?: unknown; globalStyle?: unknown; screens?: unknown }>(text || "");
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const globalStyleInitial = sanitizeGlobalStyle(parsed?.globalStyle, fallback.globalStyle);
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