import { getDb } from '../../utils/db'

export default defineEventHandler(async (event) => {
  const db = getDb()
  const query = getQuery(event)
  
  const type = query.type as string || 'short-term'
  const period = query.period as string || '24h'
  
  // 기간 계산
  let intervalClause = ''
  if (period.endsWith('h')) {
    const hours = parseInt(period)
    intervalClause = `'-${hours} hours'`
  } else if (period.endsWith('d')) {
    const days = parseInt(period)
    intervalClause = `'-${days} days'`
  } else {
    intervalClause = `'-24 hours'`
  }
  
  const logs = db.prepare(`
    SELECT id, target_id, server_name, detect_type, metric, level, 
           current_value, threshold_value, message, detected_at
    FROM anomaly_logs
    WHERE detect_type = ?
      AND detected_at >= datetime('now', ${intervalClause}, 'localtime')
    ORDER BY detected_at DESC
    LIMIT 100
  `).all(type) as any[]
  
  return {
    logs,
    type,
    period,
    timestamp: new Date().toISOString()
  }
})