// GET /api/status-history — 状态变更列表
import { NextRequest, NextResponse } from 'next/server'
import { dbQuery } from '@/lib/db'

export async function GET(request: NextRequest) {
  const { searchParams } = new URL(request.url)
  const page = Number(searchParams.get('page')) || 1
  const limit = 20
  const offset = (page - 1) * limit
  const serviceId = searchParams.get('service_id')

  let where = ''
  if (serviceId) where = ` WHERE service_id = ${Number(serviceId)}`

  const events = dbQuery(`SELECT sh.*, s.name as service_name FROM status_history sh JOIN services s ON sh.service_id = s.id ${where} ORDER BY sh.started_at DESC LIMIT ${limit} OFFSET ${offset}`)
  return NextResponse.json(events)
}