const fs = require('fs');
const path = require('path');

const content = `// server/utils/runtimeState.ts - 服务启动时间内存状态 + 问答记录 DB 读写
import { answerCache } from "~~/server/utils/cache";
import { prisma } from "~~/server/utils/db";
import { serverEnv } from "~~/server/utils/env";

const startTime = Date.now();
export const SERVICE_VERSION = "1.1.0";

export const formatLocalDateTime = (date: Date) => {
  const pad = (value: number) => value.toString().padStart(2, "0");
  return \`\${date.getFullYear()}-\${pad(date.getMonth() + 1)}-\${pad(date.getDate())} \${pad(date.getHours())}:\${pad(date.getMinutes())}:\${pad(date.getSeconds())}\`;
};

export const addQaRecord = async (record: {
  userId: string;
  question: string;
  type: string;
  options: string;
  answer: string;
}) => {
  await prisma.qaRecord.create({
    data: {
      userId: record.userId,
      question: record.question,
      type: record.type,
      options: record.options || null,
      answer: record.answer || null
    }
  });
};

export const getQaRecords = async (
  userId: string,
  options: { page: number; size: number }
) => {
  const { page, size } = options;
  const skip = (page - 1) * size;
  const [total, rows] = await Promise.all([
    prisma.qaRecord.count({ where: { userId } }),
    prisma.qaRecord.findMany({
      where: { userId },
      orderBy: { createdAt: "desc" },
      skip,
      take: size,
      select: { question: true, type: true, options: true, answer: true, createdAt: true }
    })
  ]);
  const records = rows.map((r) => ({
    time: formatLocalDateTime(r.createdAt),
    timestamp: r.createdAt.toISOString(),
    question: r.question,
    type: r.type,
    options: r.options ?? "",
    answer: r.answer ?? ""
  }));
  return { records, total };
};

export const getRuntimeStats = () => {
  return {
    version: SERVICE_VERSION,
    uptime: (Date.now() - startTime) / 1000,
    model: serverEnv.openAiModel,
    cache_enabled: serverEnv.enableCache,
    cache_size: answerCache?.size() ?? 0
  };
};
`;

fs.writeFileSync(path.join(__dirname, 'server', 'utils', 'runtimeState.ts'), content, 'utf8');
console.log('Written successfully');