/**
 * 搜索接口。
 *
 * author: Sand
 * since: 12/15/2016
 */
"use strict";

let express = require('express');
let router = express.Router();

let ControllerUtil = require("../../util/controller.util.js");
let ObjectSearcher = require('../../models/search/object.searcher');

const APIv2 = require('../../include/endpoints').APIv2;

/**
 * 搜索。
 *
 * 参数：
 *  user_id: 用户ID
 *  target_role: 目标角色，patient为患者相关，doctor为医生相关
 *  entity_type: 实体类型，user为用户,session为会话,message为消息，all为全部都搜索
 *  keyword: 关键字
 *  exclude_topic_ended_sessions: 排除议题已结束的会话
 *  page: 第几页，从1开始，当target为all时无效
 *  size: 页大小，当target为all时无效
 *
 * URL:
 *  /search?user_id=e51ac&target_role=doctor&entity_type=all&keyword=张&exclude_topic_ended_sessions=true&page=1&size=3
 */
router.get('/', function (req, res) {
    ControllerUtil.checkRequestQueryParams(req, ['user_id', 'target_role', 'entity_type', 'keyword']);

    let userId = req.query.user_id;
    let targetRole = req.query.target_role;
    let entityType = req.query.entity_type;
    let keyword = req.query.keyword;
    let excludeTopicEndedSessions = req.query.exclude_topic_ended_sessions === 'true';
    let page = req.query.page;
    let size = req.query.size;

    page = page ? parseInt(page) - 1 : 0;
    size = size ? parseInt(size) : 10;

    let searcher = new ObjectSearcher();
    ControllerUtil.regModelEventHandler(searcher, res);

    searcher.search(userId, keyword, targetRole, entityType, excludeTopicEndedSessions, page, size);
});

module.exports = router;