#!/usr/bin/env node
/**
 * 唐用户典型微信话术 ITL 全链路离线模拟（无需 DB）
 */
import { classifyUserIntent } from '../intent-classifier.mjs';
import { handleWechatIntentTransaction } from '../wechat/handlers/intent-transaction.mjs';
import { handleWechatScheduledTaskIntent } from '../wechat/handlers/scheduled-task.mjs';
import { formatUnifiedTaskListReply } from '../task-unified-service.mjs';
import { formatQueryGuardReply } from '../intent-query-guard.mjs';

const TANG = { userId: 'a70ff537-8908-486e-9b6c-042e07cc25db' };
const env = {
  H5_INTENT_TRANSACTION_ENABLED: '1',
  H5_UNIFIED_TASKS_ENABLED: '1',
  H5_DEFAULT_TIMEZONE: 'Asia/Shanghai',
};

const MOCK_TASKS = [
  {
    type: 'automation',
    title: '每日新闻页',
    trigger: { repeat: 'daily', hour: 5, minute: 30 },
    nextRunAt: Date.now() + 3600000,
  },
  {
    type: 'automation',
    title: '每日天气预报',
    trigger: { repeat: 'daily', hour: 8, minute: 0 },
    nextRunAt: Date.now() + 7200000,
  },
];

function createDraftStore() {
  let pending = null;
  return {
    async getPendingDraft(userId) {
      return pending?.userId === userId ? pending : null;
    },
    async createDraft(payload) {
      pending = { id: 'draft-sim', status: 'draft', ...payload };
      return pending;
    },
    async cancelDraft() { pending = null; return { status: 'cancelled' }; },
    async markDraftCommitted(_id, _userId, committedRef) {
      pending = { ...pending, status: 'committed', committedRef };
      return pending;
    },
  };
}

function createServices() {
  const syncCalls = [];
  const scheduleCalls = [];
  return {
    syncCalls,
    scheduleCalls,
    taskUnifiedService: {
      async listUserTasks() { return MOCK_TASKS; },
      async syncFromCommit(payload) { syncCalls.push(payload.kind); return { id: 'u-1' }; },
    },
    scheduleService: {
      async createItem(payload) {
        scheduleCalls.push(['createItem', payload.title]);
        return { id: 'item-1', ...payload };
      },
      async createReminder(payload) {
        scheduleCalls.push(['createReminder']);
        return { id: 'rem-1', itemId: payload.itemId, remindAt: payload.remindAt, channel: 'wechat' };
      },
      buildTodoDigestText: async () => '今天有 1 条待办：跟进合同。',
    },
    scheduledTaskService: {
      async listTasks() {
        return MOCK_TASKS.map((task, index) => ({
          id: `task-${index}`,
          title: task.title,
          recurrence: 'daily',
          hour: task.trigger.hour,
          minute: task.trigger.minute,
          nextRunAt: task.nextRunAt,
          timezone: 'Asia/Shanghai',
        }));
      },
      async cancelTask() {
        return { id: 'task-news', title: '每日新闻页', status: 'cancelled' };
      },
    },
  };
}

async function simulate(text) {
  const classification = classifyUserIntent(text);
  const services = createServices();
  const drafts = createDraftStore();

  let handler = 'none';
  let reply = null;

  const itl = await handleWechatIntentTransaction({
    intent: { agentText: text, msgId: `sim-${text.slice(0, 8)}`, msgType: 'text' },
    user: TANG,
    intentDraftService: drafts,
    taskUnifiedService: services.taskUnifiedService,
    scheduleService: services.scheduleService,
    scheduledTaskService: services.scheduledTaskService,
    env,
  });
  if (itl) {
    handler = 'itl';
    reply = itl;
  } else {
    const schedTask = await handleWechatScheduledTaskIntent({
      intent: { agentText: text, msgId: 'sim-st' },
      user: TANG,
      scheduledTaskService: services.scheduledTaskService,
    });
    if (schedTask) {
      handler = 'scheduled_task';
      reply = schedTask;
    }
  }

  if (classification.layer === 'L0' && !reply) {
    reply = await formatQueryGuardReply(text, {
      scheduleService: services.scheduleService,
      scheduledTaskService: services.scheduledTaskService,
      taskUnifiedService: services.taskUnifiedService,
      userId: TANG.userId,
      timezone: 'Asia/Shanghai',
    });
    handler = 'query_guard';
  }

  return { text, classification, handler, replyPreview: String(reply ?? '').split('\n').slice(0, 4).join(' / ') };
}

const cases = [
  '有没有我的新闻定时任务',
  '下午2点半提醒我开项目计划例会',
  '确认',
  '取消每日新闻任务',
  '每天5点30帮我做今日新闻页面',
  '设置提醒',
];

async function main() {
  console.log('=== 唐用户 ITL 话术模拟 ===\n');
  const drafts = createDraftStore();
  const services = createServices();

  for (const text of cases.slice(0, 2)) {
    const row = await simulate(text);
    console.log(JSON.stringify(row, null, 2));
  }

  await handleWechatIntentTransaction({
    intent: { agentText: '下午2点半提醒我开项目计划例会', msgId: 'sim-card', msgType: 'text' },
    user: TANG,
    intentDraftService: drafts,
    taskUnifiedService: services.taskUnifiedService,
    scheduleService: services.scheduleService,
    scheduledTaskService: services.scheduledTaskService,
    env,
  });
  const confirm = await handleWechatIntentTransaction({
    intent: { agentText: '确认', msgId: 'sim-confirm', msgType: 'text' },
    user: TANG,
    intentDraftService: drafts,
    taskUnifiedService: services.taskUnifiedService,
    scheduleService: services.scheduleService,
    scheduledTaskService: services.scheduledTaskService,
    env,
  });
  console.log(JSON.stringify({
    text: '确认',
    handler: 'itl_confirm',
    replyPreview: String(confirm ?? '').split('\n').slice(0, 3).join(' / '),
    syncKinds: services.syncCalls,
    scheduleCalls: services.scheduleCalls,
  }, null, 2));

  console.log('\nunified list:', formatUnifiedTaskListReply(MOCK_TASKS).split('\n').join(' | '));
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});