'use strict';

const generateId = require('../../utils/generateId.util');
const plannerEvents = require('../emitter');
// const createAsyncQueueProcessor = require('../emitter/queueProcessor');
const { getConnection } = require('../../services/connections.service')
const { getAgentSession, createAgentSession, update: updateAgentSession } = require('../../services/agent_sessions.service');
// const { getOutboundMessage, upsertOutboundMessage } = require('../../services/outbound_messages.service');
const { isEmpty } = require('../../utils/commons.util');
const { logger, getUserLogger } = require('../../utils/logger.util');
const { callAgentRounds } = require('../vendor/bailian.aliyun');
const { sendMessage } = require('../handler/whatsappHandler');

const userMessageEventNames = ['user:message:received'];
const agentMessageEventNames = ['agent:message:received'];

// const AGENT_PHONE_NO = ['8613557032060'];
const AGENT_PHONE_NO = require('../../config').agentHosted.split(',');

/**
 * 接收客人的回复
 * - 发送给agent
 */
const setupUserMessageHandler = async () => {
  const messageListner = async ({ eventName, msgRow }) => {
    const { from, to, direction } = msgRow;
    const _whatsAppNo = to;
    const _contact = from;
    getUserLogger(_whatsAppNo).info({ eventName, msgRow });

    const hostedUser = await getConnection({ wa_id: _whatsAppNo, status: 'hosted' });
    if ((!AGENT_PHONE_NO.includes(_whatsAppNo) && isEmpty(hostedUser)) || direction !== 'inbound') {
      // logger.info({ eventName, msgRow }, 'ignore message');
      return false;
    }
    try {
      const agentSession = await getAgentSession({ hosted: _whatsAppNo, contact: _contact });

      // if (isEmpty(agentSession) || isEmpty(savedMsg?.text_body)) {
      // 只处理文本
      if (isEmpty(msgRow?.text_body)) {
        return false;
      }

      // contact -> agent
      const agentPost = {
        agent_session_id: agentSession?.agent_session_id || '',
        content: msgRow.text_body,
      };
      const agentRes = await callAgentRounds(agentPost);
      plannerEvents.emit('agent:message:received', { msgRow, agentSession, agentRes });
      // #
    } catch (error) {
      logger.error({ messageData: msgRow, error }, 'error call agent');
    }
  };

  userMessageEventNames.forEach(eventName => {
    plannerEvents.on(eventName, async msgRow => messageListner({ eventName, msgRow }));
  });
};

const setupAgentMessageHandler = async () => {
  const messageListner = async ({ eventName, payload }) => {
    const { msgRow, agentSession, agentRes } = payload;
    const { from, to, whatsAppNo, direction } = msgRow;
    const _whatsAppNo = whatsAppNo || to;
    const _contact = from;

    const { output: agentMsg } = agentRes;
    const { session_id: agentSessionId } = agentMsg;
    getUserLogger(_whatsAppNo).info({ eventName, agentRes });
    try {
      const now = new Date(new Date().getTime() + 60 * 60 * 1000).toISOString();
      // 号码直接托管
      // - todo: 按会话托管时另外处理
      if (isEmpty(agentSession)) {
        await createAgentSession({
          agent_session_id: agentSessionId,
          hosted: _whatsAppNo,
          contact: _contact,
          agent_id: agentRes.agent.id,
          agent_name: agentRes.agent.name,
          model_id: agentRes.usage.models[0].model_id,
        });
      } else {
        // 更新
        await updateAgentSession(
          {
            agent_session_id: agentSessionId,
            hosted: _whatsAppNo,
            contact: _contact,
            agent_id: agentRes.agent.id,
            agent_name: agentRes.agent.name,
            model_id: agentRes.usage.models[0].model_id,
          },
          {
            hosted: _whatsAppNo,
            contact: _contact,
          },
        );
      }
      // agent -> contact
      const msgReady = { from: _whatsAppNo, to: _contact, msgcontent: { body: agentMsg.text }, msgtype: 'text', actionId: `.${generateId()}.${agentSessionId}` };
      await sendMessage(msgReady);
      // #
    } catch (error) {
      logger.error({ msgRow, agentRes, error }, 'error call agent');
    }
  };
  agentMessageEventNames.forEach(eventName => {
    plannerEvents.on(eventName, async payload => messageListner({ eventName, payload }));
  });
};

async function startAgentSession(messageData) {
  // const now = new Date(new Date().getTime() + 60 * 60 * 1000).toISOString();

  // const { from, to, whatsAppNo, direction } = messageData;
  // const _whatsAppNo = whatsAppNo || to;
  // const _contact = from;

  // // -> agent
  // const agentRes = await callAgentFirst({
  //   // agent_session_id: agentSession.agent_session_id,
  //   content: messageData.text_body,
  // });
  // const { text: agentMsg, session_id: agentSessionId } = agentRes;
  // await createAgentSession({ agent_session_id: agentSessionId, hosted: _whatsAppNo, contact: _contact, created_at: now });
  // const msgReady = { from: _whatsAppNo, to: _contact, body: agentMsg, msgtype: 'text', actionId: `.${generateId()}` };
  // await sendMessage(msgReady);
  // //
}

function setupAgentHandler() {
  setupAgentMessageHandler();
  setupUserMessageHandler();
}

module.exports = { setupAgentHandler, startAgentSession };