export function getReactionPrompt(params: {
  eventType: string
  pointTitle?: string
  city: string
  lang: string
  companions: string
  pace: string
}): string {
  const langInstruction = params.lang === 'ru'
    ? 'Write the reaction in Russian.'
    : 'Write the reaction in English.'

  const eventDescriptions: Record<string, string> = {
    arrived: `The traveler has arrived at "${params.pointTitle}" in ${params.city}.`,
    skipped: `The traveler decided to skip "${params.pointTitle}".`,
    finished_today: `The traveler decided to finish for today in ${params.city}.`,
    point_completed: `The traveler has finished exploring "${params.pointTitle}" and is ready for the next step.`,
    day_completed: `The traveler has completed all points for today in ${params.city}.`,
    quest_completed: `The traveler has completed the entire quest in ${params.city}!`,
  }

  return `${eventDescriptions[params.eventType] || 'The traveler performed an action.'}

Companions: ${params.companions}, Pace: ${params.pace}

${langInstruction}

Generate a short, atmospheric reaction message (2-3 sentences max).
- Keep the adventurous guide tone
- Be encouraging and warm
- If they skipped, be understanding
- If they completed, celebrate
- Make it personal and contextual

Write only the message text, no formatting, no JSON.`
}