// ==================== 死亡与结算 ====================

import { state, addLog, resetStateForRebirth } from './state.js';
import { CAREERS } from './expSystem.js';
import { checkNewEntries as checkNewEntriesFromTalents } from '../content/talents.js';

// 检查是否死亡
export function checkDeath() {
  if (!state.alive) return true;

  // 年龄死亡
  if (state.age >= 100) {
    die('寿终正寝');
    return true;
  }

  if (state.age >= 50) {
    const deathChance = getAgeDeathChance(state.age);
    if (Math.random() < deathChance) {
      die('寿终正寝');
      return true;
    }
  }

  // 外敌死亡
  for (const [type, progress] of Object.entries(state.enemyProgress)) {
    if (progress >= 100 && Math.random() < 0.4) {
      const names = { military: '死于蛮族入侵', spiritual: '被天魔吞噬', political: '王朝覆灭，死于战乱' };
      die(names[type] || '死于外敌');
      return true;
    }
  }

  // 体质死亡
  if (state.stats.body <= 0) {
    die('体弱身亡');
    return true;
  }

  // 危机感死亡（极端情况）
  if (state.crisisLevel >= 100 && Math.random() < 0.3) {
    die('在极度恐惧中精神崩溃');
    return true;
  }

  return false;
}

function getAgeDeathChance(age) {
  if (age < 50) return 0;
  if (age < 60) return 0.02;
  if (age < 70) return 0.08;
  if (age < 80) return 0.20;
  if (age < 90) return 0.45;
  if (age < 100) return 0.80;
  return 1.0;
}

// 死亡结算
function die(reason) {
  if (!state.alive) return;
  state.alive = false;
  addLog(`你死了。原因：${reason}`, 'death');

  // 结算元经验
  const metaGains = {};
  for (const [id, career] of Object.entries(state.careers)) {
    const config = CAREERS[id];
    if (!config) continue;

    let totalExp = career.exp;
    for (let i = 0; i < career.level; i++) {
      totalExp += Math.floor(config.baseExp * Math.pow(config.expCurve, i));
    }

    const gain = Math.floor(totalExp * 0.1);
    state.metaExp[id] = (state.metaExp[id] || 0) + gain;
    metaGains[id] = gain;
  }

  // 解锁新词条
  const newEntries = checkNewEntriesFromTalents(state);
  for (const entry of newEntries) {
    state.unlockedEntries.add(entry.id);
  }

  // 外敌进度跨轮继承（保留30%）
  for (const key of Object.keys(state.enemyProgress)) {
    state.enemyProgress[key] = Math.min(100, state.enemyProgress[key] * 0.3 + 5);
  }

  // 触发死亡结算界面
  if (typeof window !== 'undefined' && window.onDeath) {
    window.onDeath({
      reason,
      age: state.age,
      day: state.day,
      careers: Object.fromEntries(
        Object.entries(state.careers).map(([k, v]) => [k, { level: v.level, name: CAREERS[k]?.name }])
      ),
      metaGains,
      newEntries,
      history: getHistoryComparison(),
    });
  }
}

// 历史对比
function getHistoryComparison() {
  if (state.history.length === 0) return null;

  const lastLife = state.history[state.history.length - 1];
  const bestLife = state.history.reduce((best, current) =>
    (current.age > best.age) ? current : best
  , state.history[0]);

  return {
    vsLast: {
      ageDiff: state.age - lastLife.age,
      levelDiff: compareLevels(state.careers, lastLife.careers),
    },
    vsBest: {
      ageDiff: state.age - bestLife.age,
      levelDiff: compareLevels(state.careers, bestLife.careers),
    },
  };
}

function compareLevels(current, previous) {
  const result = {};
  const allIds = new Set([...Object.keys(current), ...Object.keys(previous)]);
  for (const id of allIds) {
    const curr = current[id]?.level || 0;
    const prev = previous[id]?.level || 0;
    result[id] = curr - prev;
  }
  return result;
}

// 重生
export function rebirth() {
  resetStateForRebirth();

  // 随机出身
  state.family = Math.floor(Math.random() * 4) - 1; // -1 ~ 2
  state.stats = {
    body: Math.floor(Math.random() * 5) + 2,  // 2~6，避免刚出生就死
    wisdom: Math.floor(Math.random() * 5) + 2,
    charm: Math.floor(Math.random() * 5) + 2,
    luck: Math.floor(Math.random() * 5) + 2,
  };

  // 应用记忆效果
  if (state.memories.includes('wisdom_boost')) state.stats.wisdom += 1;
  if (state.memories.includes('body_boost')) state.stats.body += 1;

  // 从已解锁词条池中随机抽取
  const pool = Array.from(state.unlockedEntries);
  state.talents = [];
  const count = Math.min(3 + Math.floor(state.reincarnation / 10), 5);
  for (let i = 0; i < count && pool.length > 0; i++) {
    const idx = Math.floor(Math.random() * pool.length);
    state.talents.push({ id: pool[idx] });
    pool.splice(idx, 1);
  }

  addLog(`第${state.reincarnation}世开始。出身: ${state.family > 0 ? '富贵' : state.family < 0 ? '贫寒' : '普通'}人家。`);

  // 触发重生事件
  if (typeof window !== 'undefined' && window.onRebirth) {
    window.onRebirth();
  }
}