275 lines
9.4 KiB
TypeScript
275 lines
9.4 KiB
TypeScript
import type { UseChatHelpers } from "@ai-sdk/react";
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import equal from "fast-deep-equal";
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import { ArrowDownIcon } from "lucide-react";
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import { memo, useEffect, useState, useRef } from "react";
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import useSWR from "swr";
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import { useMessages } from "@/hooks/use-messages";
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import type { Vote } from "@/lib/db/schema";
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import type { ChatMessage } from "@/lib/types";
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import { useDataStream } from "./data-stream-provider";
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import { GeminiImageLoading } from "./gemini-image-loading";
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import { QianwenVideoLoading } from "./qianwen-video-loading";
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import { VolcanoVisionLoading } from "./volcano-vision-loading";
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import { Greeting } from "./greeting";
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import { PreviewMessage, ThinkingMessage } from "./message";
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// 模型数据类型
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type DynamicModel = {
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id: string;
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providerType: string;
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modelId: string;
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displayName: string;
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};
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const fetcher = (url: string) => fetch(url).then((res) => res.json());
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type MessagesProps = {
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chatId: string;
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status: UseChatHelpers<ChatMessage>["status"];
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votes: Vote[] | undefined;
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messages: ChatMessage[];
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setMessages: UseChatHelpers<ChatMessage>["setMessages"];
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regenerate: UseChatHelpers<ChatMessage>["regenerate"];
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sendMessage: UseChatHelpers<ChatMessage>["sendMessage"];
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isReadonly: boolean;
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isArtifactVisible: boolean;
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selectedModelId: string;
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onImageEdit?: (imageUrl: string) => void;
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onDrawingComplete?: (annotatedImageUrl: string) => void;
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};
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function PureMessages({
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chatId,
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status,
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votes,
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messages,
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setMessages,
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regenerate,
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sendMessage,
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isReadonly,
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selectedModelId,
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onImageEdit,
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onDrawingComplete,
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}: MessagesProps) {
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const {
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containerRef: messagesContainerRef,
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endRef: messagesEndRef,
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isAtBottom,
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scrollToBottom,
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hasSentMessage,
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} = useMessages({
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status,
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});
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useDataStream();
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// 获取模型列表以判断当前模型类型
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const { data: modelsData } = useSWR<{ models: DynamicModel[] }>(
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"/api/models",
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fetcher
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);
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// 判断当前选中的模型类型
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const isGeminiModel = modelsData?.models?.some(
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(m: DynamicModel) => m.id === selectedModelId && m.providerType === "gemini"
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) ?? false;
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const isQianwenVideoModel = modelsData?.models?.some(
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(m: DynamicModel) => m.id === selectedModelId && m.providerType === "qianwen-video"
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) ?? false;
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const isVolcanoVisionModel = modelsData?.models?.some(
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(m: DynamicModel) => m.id === selectedModelId && m.providerType === "volcano-vision"
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) ?? false;
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// 判断是否是视频生成模型（通过 providerType 或模型名称）
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const isVideoModel = modelsData?.models?.some(
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(m: DynamicModel) =>
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m.id === selectedModelId &&
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(m.providerType === "volcano-video" ||
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m.modelId?.toLowerCase().includes("video") ||
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m.modelId?.toLowerCase().includes("sora") ||
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m.displayName?.includes("视频"))
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) ?? false;
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// 控制等待动画延迟消失（Gemini 图片模型延迟 4 秒，其他模型 6 秒）
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const [showThinkingWithDelay, setShowThinkingWithDelay] = useState(false);
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useEffect(() => {
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const lastMessage = messages.length > 0 ? messages[messages.length - 1] : null;
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// 对于视频模型，检查是否有真正的视频内容（包含 <video 标签或 [视频] 标记）
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const hasVideoContent = lastMessage?.parts && lastMessage.parts.some(
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(part: any) => part.type === "text" && part.text && (
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part.text.includes("[视频]") ||
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part.text.includes("<video") ||
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part.text.includes("视频生成完成")
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)
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);
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// 调试日志
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if (isVideoModel) {
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const firstPart = lastMessage?.parts?.[0];
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const messageText = firstPart && 'text' in firstPart ? firstPart.text?.substring(0, 100) : undefined;
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console.log("[占位图调试] 状态:", {
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status,
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isVideoModel,
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hasVideoContent,
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messageRole: lastMessage?.role,
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messageText
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});
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}
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// 对于图片模型，检查是否有图片内容（包含 ![thumb| 标记）
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const hasImageContent = lastMessage?.parts && lastMessage.parts.some(
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(part: any) => part.type === "text" && part.text && part.text.includes("![thumb|")
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);
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// 对于其他模型，检查是否有实际的文本内容
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const hasTextContent = lastMessage?.parts && lastMessage.parts.some(
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(part: any) => part.type === "text" && part.text && part.text.trim().length > 0
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);
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// 根据模型类型判断是否有有效内容
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let hasContent = false;
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if (isQianwenVideoModel || isVideoModel) {
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hasContent = hasVideoContent ?? false; // 视频模型：只有真正的视频才算有内容
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} else if (isGeminiModel || isVolcanoVisionModel) {
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hasContent = hasImageContent ?? false; // 图片模型：只有图片才算有内容
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} else {
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hasContent = hasTextContent ?? false; // 其他模型：任何文本都算有内容
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}
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// 根据模型类型设置延迟时间（视频模型 60 秒，图片模型 4 秒，其他 6 秒）
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const delayTime = (isQianwenVideoModel || isVideoModel) ? 60000 : (isGeminiModel || isVolcanoVisionModel) ? 4000 : 6000;
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// 如果是 submitted 状态，立即显示
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if (status === "submitted") {
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setShowThinkingWithDelay(true);
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}
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// 如果是 streaming 状态且没有内容，显示
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else if (status === "streaming" && lastMessage?.role === "assistant" && !hasContent) {
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setShowThinkingWithDelay(true);
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}
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// 如果 AI 开始有内容了，延迟后隐藏
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else if (status === "streaming" && lastMessage?.role === "assistant" && hasContent) {
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const timer = setTimeout(() => {
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setShowThinkingWithDelay(false);
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}, delayTime);
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return () => clearTimeout(timer);
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}
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// 其他情况立即隐藏
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else {
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setShowThinkingWithDelay(false);
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}
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}, [status, messages, isGeminiModel, isQianwenVideoModel, isVolcanoVisionModel, isVideoModel]);
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// 🆕 监听新消息添加，当用户发送带图片的消息时，强制滚动到底部
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const prevMessagesLengthRef = useRef(messages.length);
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useEffect(() => {
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if (messages.length > prevMessagesLengthRef.current) {
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const lastMessage = messages[messages.length - 1];
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// 如果是新添加的用户消息且包含图片附件，强制滚动到底部
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if (lastMessage?.role === "user") {
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const hasImageAttachment = lastMessage.parts?.some(
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(part: any) => part.type === "file" && part.mediaType?.startsWith("image/")
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);
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if (hasImageAttachment) {
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// 延迟一小段时间确保DOM已更新
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setTimeout(() => scrollToBottom("smooth"), 100);
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}
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}
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}
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prevMessagesLengthRef.current = messages.length;
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}, [messages, scrollToBottom]);
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return (
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<div className="relative flex-1">
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<div
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className="absolute inset-0 touch-pan-y overflow-y-auto"
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ref={messagesContainerRef}
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>
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<div className="mx-auto flex min-w-0 max-w-4xl flex-col gap-4 px-2 py-4 md:gap-6 md:px-4">
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{messages.length === 0 && <Greeting />}
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{messages.map((message, index) => (
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<PreviewMessage
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chatId={chatId}
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isLoading={
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status === "streaming" && messages.length - 1 === index
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}
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isReadonly={isReadonly}
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key={message.id}
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message={message}
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regenerate={regenerate}
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sendMessage={sendMessage}
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requiresScrollPadding={
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hasSentMessage && index === messages.length - 1
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}
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setMessages={setMessages}
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vote={
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votes
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? votes.find((vote) => vote.messageId === message.id)
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: undefined
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}
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onImageEdit={onImageEdit}
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onDrawingComplete={onDrawingComplete}
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/>
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))}
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{/* 等待动画：根据模型类型显示不同的加载效果 */}
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{showThinkingWithDelay && (
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(isQianwenVideoModel || isVideoModel) ? <QianwenVideoLoading /> :
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isGeminiModel ? <GeminiImageLoading /> :
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isVolcanoVisionModel ? <VolcanoVisionLoading /> :
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<ThinkingMessage />
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)}
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<div
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className="min-h-[24px] min-w-[24px] shrink-0"
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ref={messagesEndRef}
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/>
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</div>
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</div>
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<button
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aria-label="滚动至底部"
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className={`-translate-x-1/2 absolute bottom-4 left-1/2 z-10 rounded-full border bg-background p-2 shadow-lg transition-all hover:bg-muted ${
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isAtBottom
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? "pointer-events-none scale-0 opacity-0"
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: "pointer-events-auto scale-100 opacity-100"
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}`}
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onClick={() => scrollToBottom("smooth")}
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type="button"
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>
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<ArrowDownIcon className="size-4" />
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</button>
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</div>
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);
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}
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export const Messages = memo(PureMessages, (prevProps: MessagesProps, nextProps: MessagesProps) => {
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if (prevProps.isArtifactVisible && nextProps.isArtifactVisible) {
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return true;
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}
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if (prevProps.status !== nextProps.status) {
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return false;
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}
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if (prevProps.selectedModelId !== nextProps.selectedModelId) {
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return false;
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}
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if (prevProps.messages.length !== nextProps.messages.length) {
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return false;
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}
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if (!equal(prevProps.messages, nextProps.messages)) {
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return false;
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}
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if (!equal(prevProps.votes, nextProps.votes)) {
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return false;
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}
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return false;
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});
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