import { resolveWechatAddressName } from '../user/display-name.mjs';
import { buildSubscribeMorningReminderPromptLines } from '../subscribe-morning-reminder.mjs';

export const DEFAULT_SUBSCRIBE_INTRO_URL =
  'https://m.tkmind.cn/MindSpace/a70ff537-8908-486e-9b6c-042e07cc25db/public/tkmind-deep-intro.html';

/** 103 生产默认绑定入口：{H5_PUBLIC_BASE_URL}/auth/wechat/authorize?intent=login */
export const DEFAULT_PRODUCTION_BIND_URL =
  'https://m.tkmind.cn/auth/wechat/authorize?intent=login';

export const DEFAULT_PLAZA_HOME_URL = 'https://plaza.tkmind.cn/plaza';

/** 关注欢迎语里推荐的 M发现精选入口（示例页/广场作品，便于长期维护）。 */
export const DEFAULT_SUBSCRIBE_PLAZA_PICKS = Object.freeze([
  {
    label: '✈️ 旅行攻略 · 路线/交通/美食预算一站看',
    url: 'https://m.tkmind.cn/MindSpace/a70ff537-8908-486e-9b6c-042e07cc25db/public/xinjiang-travel.html',
  },
  {
    label: '🍜 深夜食堂 · 城市探店、散步地图',
    url: 'https://plaza.tkmind.cn/plaza/p/a2767a6d-e314-49fe-885e-c5baa978e6fc',
  },
  {
    label: '🎨 创意海报页 · 活动页、品牌视觉',
    url: 'https://m.tkmind.cn/MindSpace/a70ff537-8908-486e-9b6c-042e07cc25db/public/tkmind-zhiqu-landing.html',
  },
]);

export function buildWechatTextLink(href, label) {
  const normalizedHref = String(href ?? '').trim();
  const normalizedLabel = String(label ?? '').trim();
  if (!normalizedHref) return normalizedLabel;
  if (!normalizedLabel) return normalizedHref;
  return `<a href="${normalizedHref}">${normalizedLabel}</a>`;
}

export function buildPlazaDiscoveryLines({
  plazaHomeUrl = DEFAULT_PLAZA_HOME_URL,
  plazaPicks = DEFAULT_SUBSCRIBE_PLAZA_PICKS,
} = {}) {
  const homeUrl = String(plazaHomeUrl ?? '').trim();
  if (!homeUrl) return [];
  const picks = Array.isArray(plazaPicks) ? plazaPicks : DEFAULT_SUBSCRIBE_PLAZA_PICKS;
  const lines = [
    '',
    '🎯 M发现 · 精选作品广场',
    '别人已经做好的精美页面，点开就能看；改改文字和图片，就是你的攻略/活动页：',
  ];
  for (const pick of picks) {
    const url = String(pick?.url ?? '').trim();
    const label = String(pick?.label ?? '').trim();
    if (!url || !label) continue;
    lines.push(`· ${buildWechatTextLink(url, label)}`);
  }
  lines.push('', `👉 ${buildWechatTextLink(homeUrl, '进入 M发现，逛热门作品')}`);
  return lines;
}

export function buildSubscribeWelcomeText({
  bindUrl,
  introUrl = DEFAULT_SUBSCRIBE_INTRO_URL,
  plazaHomeUrl = DEFAULT_PLAZA_HOME_URL,
  plazaPicks = DEFAULT_SUBSCRIBE_PLAZA_PICKS,
  morningReminderEnabled = true,
  morningReminderHour = 8,
  morningReminderMinute = 0,
} = {}) {
  const normalizedBindUrl = String(bindUrl ?? '').trim();
  const normalizedIntroUrl = String(introUrl ?? '').trim();
  const lines = [
    '欢迎关注 TKMind 智趣 👋',
    '',
    '在微信里直接发消息即可：',
    '· 问答、写作、翻译',
    '· 生成精美网页并给链接',
    '· 发图解读报告/截图',
    '· 设置定时提醒与每日推送',
    ...buildPlazaDiscoveryLines({ plazaHomeUrl, plazaPicks }),
  ];
  if (morningReminderEnabled) {
    lines.push(
      ...buildSubscribeMorningReminderPromptLines({
        hour: morningReminderHour,
        minute: morningReminderMinute,
      }),
    );
  }
  if (normalizedIntroUrl) {
    lines.push('', '📖 了解 TKMind 能做什么：', buildWechatTextLink(normalizedIntroUrl, '看功能介绍'));
  }
  if (normalizedBindUrl) {
    lines.push('', '👉 先完成绑定再开始对话：', buildWechatTextLink(normalizedBindUrl, '点我绑定'));
  }
  lines.push('', '绑定后回复「你好」，或试试：', '「帮我做一个苏州游玩攻略页面」');
  return lines.join('\n');
}

export function buildGreetingText(user) {
  const name = resolveWechatAddressName(user);
  return name ? `你好，${name}！我在呢，有什么需要？` : '你好！我在呢，有什么需要？';
}

export function buildStatusText(user, fallbackText) {
  const name = resolveWechatAddressName(user);
  if (!name) return fallbackText;
  return `我在这边，${name}。上一条如果还没完成，我会继续把结果发给你；你也可以直接补一句要求。`;
}

export function buildConnectivityTestReply(user) {
  const name = resolveWechatAddressName(user);
  return name
    ? `${name}，公众号消息通道正常，我收到你的测试了。`
    : '公众号消息通道正常，我收到你的测试了。';
}

/**
 * Resolve an immediate sync XML reply for lightweight intents.
 * @returns {string|null}
 */
export function resolveSyncReply(wechatIntent, user, { statusFallbackText = '' } = {}) {
  switch (wechatIntent?.kind) {
    case 'status.probe':
      return buildStatusText(user, statusFallbackText);
    case 'greeting':
      return buildGreetingText(user);
    case 'connectivity.test':
      return buildConnectivityTestReply(user);
    default:
      return null;
  }
}

/**
 * Whether this intent should be answered synchronously before agent dispatch.
 */
export function shouldHandleSyncReply(intent, wechatIntent) {
  const msgType = String(intent?.msgType ?? '').toLowerCase();
  if (wechatIntent?.kind === 'connectivity.test') {
    return msgType === 'text' || msgType === 'voice';
  }
  if (wechatIntent?.kind === 'status.probe' || wechatIntent?.kind === 'greeting') {
    return msgType === 'text';
  }
  return false;
}