262 lines
7.6 KiB
TypeScript
262 lines
7.6 KiB
TypeScript
/**
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* 智能模型路由器
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* 根据用户意图选择最佳AI模型
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*
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* 核心逻辑：图片编辑场景优先使用 alibaba-image (灵魂4.5)
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*/
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// 使用动态导入避免循环依赖
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// import { getEnabledAiModelsWithProvider } from "@/lib/db/queries";
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// 路由结果类型
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export interface RouteResult {
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id: string;
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displayName: string;
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providerType: string;
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modelId: string;
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reason: string;
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}
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// 意图到模型的映射配置
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// providerTypes 按优先级排序，第一个是首选
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const INTENT_MODEL_MAP: Record<
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string,
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{
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providerTypes: string[];
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requireVision?: boolean;
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requireImageGen?: boolean;
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description: string;
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}
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> = {
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// 图片编辑：优先 alibaba-image（灵魂4.5，支持提示词扩展）
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image_edit: {
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providerTypes: ["alibaba-image", "gemini"],
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requireVision: true,
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requireImageGen: true,
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description: "图片编辑",
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},
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// 视觉理解：优先千问3 VL（成本低效果好）
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vision: {
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providerTypes: ["alibaba", "gemini"],
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requireVision: true,
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description: "图片理解",
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},
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// 图片生成：优先灵魂4.5
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image_gen: {
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providerTypes: ["alibaba-image", "gemini", "volcano-vision"],
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requireImageGen: true,
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description: "图片生成",
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},
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// 视频生成
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video_gen: {
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providerTypes: ["volcano-video", "qianwen-video"],
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description: "视频生成",
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},
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// 普通对话：优先千问3
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chat: {
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providerTypes: ["alibaba", "openai", "local"],
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description: "对话",
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},
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};
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// 子意图的特殊路由配置（覆盖默认配置）
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const SUB_INTENT_OVERRIDES: Record<
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string,
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{
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providerTypes?: string[];
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reason?: string;
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}
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> = {
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// 抠图：alibaba-image 效果最好
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remove_background: {
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providerTypes: ["alibaba-image", "gemini"],
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reason: "抠图首选灵魂4.5",
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},
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// 换背景：alibaba-image 支持场景生成
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replace_background: {
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providerTypes: ["alibaba-image", "gemini"],
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reason: "换背景首选灵魂4.5",
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},
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// 图片增强
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enhance: {
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providerTypes: ["alibaba-image", "gemini", "volcano-vision"],
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reason: "增强首选灵魂4.5",
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},
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// 风格迁移：gemini 可能更有创意
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style_transfer: {
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providerTypes: ["gemini", "alibaba-image"],
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reason: "风格迁移优选Gemini",
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},
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};
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/**
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* 路由到最佳模型
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*/
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export async function routeToModel(params: {
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intent: string;
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subIntent?: string;
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hasImage: boolean;
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}): Promise<RouteResult> {
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const { intent, subIntent, hasImage } = params;
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console.log("[Model Router] Routing:", { intent, subIntent, hasImage });
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// 使用动态导入避免循环依赖
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const { getEnabledAiModelsWithProvider } = await import("@/lib/db/queries");
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const { db } = await import("@/lib/db");
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const { siteSettings } = await import("@/lib/db/schema");
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// 获取所有可用模型
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const allModels = await getEnabledAiModelsWithProvider();
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console.log("[Model Router] Available models:", allModels.length);
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// 🆕 检查是否有配置的默认生图模型
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const [settings] = await db.select().from(siteSettings).limit(1);
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const configuredDefaultModelId = settings?.canvasAutoModeDefaultModelId;
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if (configuredDefaultModelId) {
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// 如果配置了默认模型，直接使用该模型
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const configuredModel = allModels.find(
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(m) => m.model.id === configuredDefaultModelId && m.model.isEnabled && !m.model.isSubModel
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);
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if (configuredModel) {
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console.log("[Model Router] ✅ Using configured default model:", configuredModel.model.displayName);
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return {
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id: configuredModel.model.id,
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displayName: configuredModel.model.displayName,
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providerType: configuredModel.provider.type,
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modelId: configuredModel.model.modelId,
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reason: `管理员配置的默认模型 → ${configuredModel.model.displayName}`,
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};
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} else {
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console.log("[Model Router] ⚠️ Configured default model not found or disabled, falling back to intent routing");
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}
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}
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// 获取意图对应的配置
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let config = INTENT_MODEL_MAP[intent] || INTENT_MODEL_MAP["chat"];
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// 检查是否有子意图的特殊配置
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if (subIntent && SUB_INTENT_OVERRIDES[subIntent]) {
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const override = SUB_INTENT_OVERRIDES[subIntent];
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if (override.providerTypes) {
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config = { ...config, providerTypes: override.providerTypes };
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}
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}
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// 按优先级查找匹配的模型
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for (const providerType of config.providerTypes) {
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const candidates = allModels.filter((m) => {
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// 匹配 provider 类型
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if (m.provider.type !== providerType) return false;
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// 检查能力要求
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if (config.requireVision && !m.model.supportsVision) return false;
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if (config.requireImageGen && !m.model.supportsImageGen) return false;
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// 排除子模型（只选主模型）
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if (m.model.isSubModel) return false;
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// 必须启用
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if (!m.model.isEnabled) return false;
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return true;
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});
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if (candidates.length > 0) {
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// 优先选择默认模型
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const defaultModel = candidates.find((c) => c.model.isDefault);
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const selected = defaultModel || candidates[0];
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const result: RouteResult = {
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id: selected.model.id,
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displayName: selected.model.displayName,
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providerType: selected.provider.type,
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modelId: selected.model.modelId,
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reason: subIntent
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? `${config.description}/${subIntent} → ${selected.model.displayName}`
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: `${config.description} → ${selected.model.displayName}`,
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};
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console.log("[Model Router] ✅ Selected:", result);
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return result;
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}
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}
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// 兜底逻辑：返回任意可用的图片编辑模型
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const fallbackCandidates = allModels.filter(
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(m) =>
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!m.model.isSubModel &&
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m.model.isEnabled &&
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(m.model.supportsImageGen || m.model.supportsVision)
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);
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if (fallbackCandidates.length > 0) {
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const fallback = fallbackCandidates[0];
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console.log("[Model Router] Using fallback (with image capability):", fallback.model.displayName);
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return {
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id: fallback.model.id,
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displayName: fallback.model.displayName,
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providerType: fallback.provider.type,
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modelId: fallback.model.modelId,
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reason: `fallback (${config.description})`,
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};
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}
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// 最终兜底：返回任意可用模型
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const anyModel = allModels.find((m) => !m.model.isSubModel && m.model.isEnabled);
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if (anyModel) {
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console.log("[Model Router] Using any available model:", anyModel.model.displayName);
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return {
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id: anyModel.model.id,
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displayName: anyModel.model.displayName,
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providerType: anyModel.provider.type,
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modelId: anyModel.model.modelId,
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reason: "fallback (any)",
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};
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}
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// 如果没有任何模型，抛出错误
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throw new Error("No available models for routing");
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}
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/**
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* 获取意图的推荐模型列表（用于 UI 展示）
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*/
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export function getRecommendedModelsForIntent(intent: string): string[] {
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const config = INTENT_MODEL_MAP[intent];
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return config ? config.providerTypes : INTENT_MODEL_MAP["chat"].providerTypes;
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}
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/**
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* 检查模型是否适合指定意图
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*/
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export function isModelSuitableForIntent(
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providerType: string,
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intent: string,
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supportsVision: boolean,
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supportsImageGen: boolean
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): boolean {
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const config = INTENT_MODEL_MAP[intent];
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if (!config) return true; // 未知意图，允许任何模型
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// 检查 provider 类型是否匹配
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if (!config.providerTypes.includes(providerType)) {
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return false;
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}
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// 检查能力要求
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if (config.requireVision && !supportsVision) return false;
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if (config.requireImageGen && !supportsImageGen) return false;
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return true;
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}
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