import type {Character, CharacterChatTurn, Encounter} from '../types';

export function buildOfflineNpcChatDialogue(encounter: Encounter, topic: string) {
  return [
    `你：${topic}。我想先听听你的看法。`,
    `${encounter.npcName}：你问得并不随意，看来是真想弄清这里的底细。`,
    '你：前面的局势我还没看透。你若知道什么，就别只说一半。',
    `${encounter.npcName}：我能告诉你的，是这里近来一直不太平。接下来多留神些。`,
  ].join('\n');
}

export function buildOfflineNpcRecruitDialogue(encounter: Encounter) {
  return [
    '你：这不是客套。我是真心希望你能加入队伍，和我一起走下去。',
    `${encounter.npcName}：你这番话够坦诚，我听得出你不是随口一提。`,
    '你：前路不会轻松，但我还是希望你能与我并肩同行。',
    `${encounter.npcName}：好，我答应你。从现在起，我便与你结伴同行。`,
  ].join('\n');
}

export function buildOfflineCharacterPanelChatReply(
  targetCharacter: Character,
  playerMessage: string,
  conversationSummary: string,
) {
  const personalityCue = targetCharacter.personality
    .split(/[，。！？,.!?]/u)
    .find(Boolean)?.trim() ?? '我会按自己的方式回答你';
  const focus = playerMessage.trim() || '我听见你刚才的话了。';

  return `${focus}${focus.endsWith('。') ? '' : '。'}${personalityCue}${personalityCue.endsWith('。') ? '' : '。'}${
    conversationSummary
      ? '我还记得我们之前谈过的那些事。'
      : '既然你愿意直接来问，我也会认真回答。'
  }前路不会轻松，但如果你还想继续说下去，我会陪着你。`;
}

export function buildOfflineCharacterPanelChatSuggestions(targetCharacter: Character) {
  return [
    '把你的意思再说清楚一些。',
    `${targetCharacter.name}，你真正担心的到底是什么？`,
    '先别管外面的局势，我想多了解你一点。',
  ];
}

export function buildOfflineCharacterPanelChatSummary(
  targetCharacter: Character,
  history: CharacterChatTurn[],
  previousSummary: string,
) {
  const latestTurns = history.slice(-4)
    .map(turn => `${turn.speaker === 'player' ? '玩家' : targetCharacter.name}：${turn.text}`)
    .join(' ');

  const currentSummary = latestTurns
    ? `${targetCharacter.name}在私下交谈中更愿意坦率回应。最近交流：${latestTurns}`
    : `${targetCharacter.name}愿意继续私下交谈，对玩家的态度也在逐渐变得更温和。`;

  if (!previousSummary) {
    return currentSummary.slice(0, 118);
  }

  return `${previousSummary} ${currentSummary}`.slice(0, 118);
}