// ==================== NPC系统 ====================

import { state, addLog } from '../engine/state.js';

// NPC定义
export const NPCS = {
  old_beggar: {
    id: 'old_beggar',
    name: '老乞丐',
    description: '一个衣衫褴褛的神秘老人',
    relation: { trust: 0, favor: 0 },
    // NPC事件线
    eventLine: [
      {
        day: 30,
        eventId: 'beggar_first_meet',
        condition: (s) => !s.worldFlags.met_old_beggar,
      },
      {
        day: 200,
        eventId: 'beggar_teach',
        condition: (s) => s.worldFlags.met_old_beggar && s.npcs.old_beggar?.favor > 20,
      },
      {
        day: 500,
        eventId: 'beggar_death',
        condition: (s) => s.worldFlags.met_old_beggar && s.age > 50,
      },
    ],
    // 互动选项
    interactions: [
      {
        id: 'give_food',
        text: '给食物',
        effect: (s) => {
          s.npcs.old_beggar.favor += 10;
          s.npcs.old_beggar.trust += 5;
          addLog('老乞丐感激地收下了食物。');
        }
      },
      {
        id: 'ask_story',
        text: '询问往事',
        requirement: (s) => s.npcs.old_beggar.trust > 10,
        effect: (s) => {
          addLog('老乞丐讲述了一个关于江湖的传说...');
          s.stats.wisdom += 0.2;
        }
      },
    ]
  },

  taoist_priest: {
    id: 'taoist_priest',
    name: '云游道士',
    description: '一位行踪不定的修行者',
    relation: { trust: 0, favor: 0 },
    eventLine: [
      {
        day: 100,
        eventId: 'taoist_first_meet',
        condition: (s) => !s.worldFlags.met_taoist && s.stats.wisdom >= 3,
      },
      {
        day: 300,
        eventId: 'taoist_test',
        condition: (s) => s.worldFlags.met_taoist && s.stats.wisdom >= 5,
      },
    ],
    interactions: [
      {
        id: 'ask_cultivation',
        text: '请教修炼',
        effect: (s) => {
          addLog('道士传授了你一些呼吸吐纳之法。');
          s.stats.wisdom += 0.3;
        }
      },
    ]
  },

  zhangsan: {
    id: 'zhangsan',
    name: '张三',
    description: '村里的普通村民',
    relation: { trust: 0, favor: 0 },
    eventLine: [
      {
        day: 50,
        eventId: 'zhangsan_marriage',
        condition: (s) => !s.worldFlags.zhangsan_married,
      },
      {
        day: 300,
        eventId: 'zhangsan_child',
        condition: (s) => s.worldFlags.zhangsan_married,
      },
      {
        day: 800,
        eventId: 'zhangsan_death',
        condition: (s) => s.worldFlags.zhangsan_married && s.age > 60,
      },
    ],
  },

  lisi: {
    id: 'lisi',
    name: '李四',
    description: '镇上的商人',
    relation: { trust: 0, favor: 0 },
    eventLine: [
      {
        day: 150,
        eventId: 'lisi_shop',
        condition: (s) => !s.worldFlags.met_lisi,
      },
    ],
    interactions: [
      {
        id: 'trade',
        text: '交易',
        effect: (s) => {
          addLog('和李四做了一笔生意。');
          s.stats.charm += 0.1;
        }
      },
      {
        id: 'ask_news',
        text: '打听消息',
        effect: (s) => {
          addLog('李四告诉你最近蛮族在边境活动频繁。');
          s.stats.wisdom += 0.1;
        }
      },
    ]
  },

  wangwu: {
    id: 'wangwu',
    name: '王五',
    description: '一个神秘的危险人物',
    relation: { trust: -20, favor: -20 },
    eventLine: [
      {
        day: 200,
        eventId: 'wangwu_ambush',
        condition: (s) => !s.worldFlags.met_wangwu && s.careers.hoodlum?.level >= 5,
      },
      {
        day: 600,
        eventId: 'wangwu_revenge',
        condition: (s) => s.worldFlags.wangwu_humiliated,
      },
    ],
  },
};

// NPC事件定义
export const NPC_EVENTS = [
  {
    id: 'beggar_first_meet',
    title: '偶遇',
    text: '你在街头遇到了一个衣衫褴褛的老乞丐。',
    isChoice: true,
    defaultChoice: 0,
    choices: [
      {
        text: '给些银钱',
        effect: (s) => {
          s.worldFlags.met_old_beggar = true;
          s.npcs.old_beggar = { favor: 10, trust: 5 };
          addLog('老乞丐感激地收下了。');
          return {};
        }
      },
      {
        text: '视而不见',
        effect: (s) => {
          s.worldFlags.met_old_beggar = true;
          s.npcs.old_beggar = { favor: -5, trust: 0 };
          return {};
        }
      }
    ]
  },
  {
    id: 'taoist_first_meet',
    title: '云游道士',
    text: '一位道士在山中与你相遇。',
    isChoice: true,
    defaultChoice: 0,
    choices: [
      {
        text: '请教修行',
        effect: (s) => {
          s.worldFlags.met_taoist = true;
          s.npcs.taoist_priest = { favor: 15, trust: 10 };
          addLog('道士对你颇有好感，传授了一些心法。');
          s.stats.wisdom += 0.5;
          return {};
        }
      },
      {
        text: '礼貌离开',
        effect: (s) => {
          s.worldFlags.met_taoist = true;
          s.npcs.taoist_priest = { favor: 0, trust: 0 };
          return {};
        }
      }
    ]
  },
  {
    id: 'zhangsan_marriage',
    title: '喜事',
    text: '张三今天娶了邻村的姑娘，村里举行了热闹的婚礼。',
    isChoice: false,
    effect: (s) => {
      s.worldFlags.zhangsan_married = true;
      addLog('张三结婚了！村里喜气洋洋。');
      return {};
    }
  },
  {
    id: 'wangwu_ambush',
    title: '埋伏',
    text: '王五带着人堵住了你的去路。',
    isChoice: true,
    defaultChoice: 0,
    choices: [
      {
        text: ' fight',
        requirement: (s) => s.stats.body >= 5,
        effect: (s) => {
          if (s.stats.body + s.stats.luck >= 7) {
            addLog('你打败了王五，他灰溜溜地逃走了。');
            s.worldFlags.wangwu_humiliated = true;
          } else {
            addLog('你被王五打伤了。');
            s.stats.body -= 2;
          }
          return {};
        }
      },
      {
        text: '逃跑',
        effect: (s) => {
          addLog('你趁乱逃走了。');
          return {};
        }
      }
    ]
  },
];

// 注册NPC事件
export function registerNPCEvents(eventEngine) {
  for (const ev of NPC_EVENTS) {
    eventEngine.register(ev);
  }
}

// 检查NPC事件线
export function checkNPCEvents() {
  for (const [npcId, npc] of Object.entries(NPCS)) {
    for (const eventNode of npc.eventLine || []) {
      if (eventNode.condition(state)) {
        // 事件条件满足，由事件引擎决定是否触发
      }
    }
  }
}