import { formatCurrency } from './runtimeEconomyPrimitives.js';

type TreasureRewardItem = {
  name: string;
};

type TreasureRewardLike = {
  items: TreasureRewardItem[];
  hp: number;
  mana: number;
  currency: number;
  storyHint?: string;
};

type TreasureEncounterLike = {
  npcName: string;
};

type TreasureInteractionAction = 'inspect' | 'leave' | 'secure';

export function buildTreasureResultText(
  encounter: TreasureEncounterLike,
  action: TreasureInteractionAction,
  reward?: TreasureRewardLike,
  worldType?: string | null,
) {
  if (action === 'leave') {
    return `你暂时没有触碰 ${encounter.npcName}，只是把它的异常位置和痕迹牢牢记下。`;
  }

  const itemText =
    reward?.items.length ? reward.items.map((item) => item.name).join('、') : '零散战利品';
  const restoreParts = [
    (reward?.hp ?? 0) > 0 ? `气血 +${reward?.hp ?? 0}` : null,
    (reward?.mana ?? 0) > 0 ? `灵力 +${reward?.mana ?? 0}` : null,
  ].filter(Boolean);
  const restoreText =
    restoreParts.length > 0 ? `，并恢复 ${restoreParts.join('、')}` : '';
  const currencyText = reward
    ? `，另得 ${formatCurrency(reward.currency, worldType ?? null)}`
    : '';
  const storyHint = reward?.storyHint ? ` ${reward.storyHint}` : '';

  if (action === 'inspect') {
    return `你仔细检查了 ${encounter.npcName}，顺着现场痕迹拆开机关与伪装，最终收回 ${itemText}${currencyText}${restoreText}。${storyHint}`;
  }

  return `你迅速收下了 ${encounter.npcName} 中最关键的收获：${itemText}${currencyText}。${storyHint}`;
}