refactor: repartition server-side and client-side code
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LIlGG
317
app/.server/service/message.ts
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317
app/.server/service/message.ts
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import type { Message } from '@prisma/client';
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import type { JsonArray } from '@prisma/client/runtime/library';
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import type { TextUIPart, UIMessagePart } from 'ai';
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import { prisma } from '~/.server/service/prisma';
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import type { SummaryAnnotation, UPageDataParts, UPageUIMessage } from '~/types/message';
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import { createScopedLogger } from '~/utils/logger';
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const logger = createScopedLogger('message.server');
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/**
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* 消息创建参数接口
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*/
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export interface MessageCreateParams {
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chatId: string;
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userId: string;
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role: string;
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content: string;
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revisionId?: string;
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annotations?: any[];
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version?: number;
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}
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/**
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* 消息更新参数接口
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*/
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export interface MessageUpdateParams {
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content?: string;
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revisionId?: string;
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annotations?: any[];
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version?: number;
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}
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/**
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* 消息创建或更新参数接口
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*/
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export interface MessageUpsertParams {
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id: string;
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chatId: string;
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userId: string;
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role: string;
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content: string;
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revisionId?: string;
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annotations?: any[];
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version?: number;
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}
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/**
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* 根据ID创建或更新消息（upsert操作）
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* @param params 消息创建或更新参数
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* @returns 创建或更新后的消息记录
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*/
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export async function upsertMessage(params: MessageUpsertParams) {
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const { id, chatId, userId, role, content, revisionId, annotations } = params;
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try {
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const message = await prisma.message.upsert({
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where: { id },
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update: {
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content,
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revisionId,
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annotations,
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},
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create: {
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id,
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chatId,
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userId,
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role,
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content,
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revisionId,
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annotations,
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},
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});
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logger.info(`[Message] 创建或更新了消息 ${id}`);
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return message;
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} catch (error) {
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logger.error(`[Message] 创建或更新消息 ${id} 失败:`, error);
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throw error;
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}
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}
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/**
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* 更新消息为遗弃消息。
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*
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* 此方法将会更新同一 {@param chatId} 下 startMessageId（不含）与 endMessageId 之间（不含）的所有消息为遗弃消息。
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*
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* @param chatId 聊天ID
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* @param startMessageId 开始消息ID
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* @param endMessageId 结束消息ID
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*/
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export async function updateDiscardedMessage(chatId: string, startMessageId: string) {
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try {
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const startMessage = await prisma.message.findUnique({
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where: { id: startMessageId },
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select: { createdAt: true },
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});
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if (!startMessage) {
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logger.error(`[Message] 找不到开始消息 ${startMessageId}`);
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return false;
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}
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// 更新 startMessageId 之后的所有消息为遗弃消息
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const result = await prisma.message.updateMany({
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where: {
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chatId,
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createdAt: {
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gt: startMessage?.createdAt,
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},
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},
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data: {
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isDiscarded: true,
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},
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});
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logger.info(`[Message] 已将聊天 ${chatId} 中 ${startMessageId} 之后的 ${result.count} 条消息标记为遗弃`);
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return true;
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} catch (error) {
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logger.error(`[Message] 更新遗弃消息失败:`, error);
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throw error;
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}
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}
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/**
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* 获取历史聊天消息接口参数
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*/
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export interface GetHistoryChatMessagesParams {
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chatId: string;
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rewindTo?: string;
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}
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/**
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* 获取从第一条消息到指定消息之间的所有历史消息
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* @param params 包含 chatId 和可选的 rewindTo 参数
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* @returns 消息记录列表
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*/
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export async function getHistoryChatMessages(params: GetHistoryChatMessagesParams): Promise<UPageUIMessage[]> {
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const { chatId, rewindTo } = params;
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try {
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// 如果指定了 rewindTo，则获取该消息的创建时间
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if (rewindTo) {
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const rewindToMessage = await prisma.message.findUnique({
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where: { id: rewindTo },
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select: { createdAt: true },
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});
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if (!rewindToMessage) {
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logger.warn(`[Message] 获取历史消息: 找不到指定的 rewindTo 消息 ${rewindTo}`);
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// 如果找不到指定消息，则返回所有消息
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return await getAllChatMessages(chatId);
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}
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// 获取所有在 rewindTo 消息创建时间之前（包括该消息）的消息
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const messages = await prisma.message.findMany({
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where: {
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chatId,
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isDiscarded: false,
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createdAt: {
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lte: rewindToMessage.createdAt,
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},
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},
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orderBy: {
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createdAt: 'asc',
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},
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});
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logger.info(`[Message] 获取了聊天 ${chatId} 中直到消息 ${rewindTo} 的 ${messages.length} 条历史消息`);
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return messages.map(convertToUIMessage);
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} else {
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// 如果没有指定 rewindTo，则获取所有消息
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return await getAllChatMessages(chatId);
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}
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} catch (error) {
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logger.error(`[Message] 获取聊天 ${chatId} 的历史消息失败:`, error);
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throw error;
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}
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}
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function convertToUIMessage(message: Message): UPageUIMessage {
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if (message.version === 2) {
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return {
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id: message.id,
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role: message.role as 'user' | 'assistant',
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parts: message.parts as any[],
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metadata: message.metadata as any,
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};
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}
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const parts: UIMessagePart<UPageDataParts, never>[] = [];
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if (message.role === 'user') {
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const content = JSON.parse(message.content) as TextUIPart;
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parts.push({
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type: 'text',
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text: content.text,
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});
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} else {
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parts.push({
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type: 'text',
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text: message.content,
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});
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}
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if (message.annotations) {
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const messageAnnotations = message.annotations as JsonArray;
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messageAnnotations.forEach((annotation) => {
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const { type } = annotation as { type: string };
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if (type === 'chatSummary') {
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parts.push({
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type: 'data-summary',
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data: annotation as unknown as SummaryAnnotation,
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});
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}
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});
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}
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return {
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id: message.id,
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role: message.role as 'user' | 'assistant',
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parts,
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metadata: message.metadata as any,
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};
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}
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/**
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* 获取聊天的所有消息（内部辅助方法）
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* @param chatId 聊天ID
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* @returns 消息记录列表
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*/
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async function getAllChatMessages(chatId: string): Promise<UPageUIMessage[]> {
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const messages = await prisma.message.findMany({
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where: {
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chatId,
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isDiscarded: false,
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},
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orderBy: {
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createdAt: 'asc',
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},
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});
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logger.info(`[Message] 获取了聊天 ${chatId} 的所有 ${messages.length} 条历史消息`);
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return messages.map(convertToUIMessage);
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}
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/**
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* 保存聊天消息列表到数据库
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* @param chatId 聊天ID
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* @param messages 消息列表（UPageUIMessage[]）
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* @returns 保存结果
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*/
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export async function saveChatMessages(chatId: string, messages: UPageUIMessage[]): Promise<number> {
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if (!messages || messages.length === 0) {
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logger.warn('[Message] 保存聊天消息: 没有提供消息数据');
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return 0;
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}
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try {
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// 获取聊天的用户ID
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const chat = await prisma.chat.findUnique({
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where: { id: chatId },
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select: { userId: true },
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});
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if (!chat) {
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logger.error(`[Message] 保存聊天消息: 找不到聊天 ${chatId}`);
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throw new Error(`找不到聊天 ${chatId}`);
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}
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const userId = chat.userId;
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let savedCount = 0;
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// 逐条保存消息
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for (const message of messages) {
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// 跳过没有ID的消息
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if (!message.id) {
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logger.warn('[Message] 保存聊天消息: 跳过没有ID的消息');
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continue;
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}
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// 提取消息的文本内容
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const textPart = message.parts.find((part) => part.type === 'text');
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const content = textPart?.text || '';
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// 创建或更新消息
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const updateData: any = {
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content,
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parts: message.parts,
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metadata: message.metadata,
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version: 2,
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};
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const createData: any = {
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id: message.id,
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chatId,
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userId,
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role: message.role,
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content,
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parts: message.parts,
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metadata: message.metadata,
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version: 2,
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};
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await prisma.message.upsert({
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where: { id: message.id },
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update: updateData,
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create: createData,
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});
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savedCount++;
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}
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logger.info(`[Message] 成功保存了聊天 ${chatId} 的 ${savedCount} 条消息`);
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return savedCount;
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} catch (error) {
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logger.error(`[Message] 保存聊天消息失败:`, error);
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throw error;
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}
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}
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