/**
 * 系统消息。
 */
"use strict";

let PLATFORMS = require('../include/commons').PLATFORM;

let BaseModel = require('./base.model');
let log = require("../util/log.js");
let modelUtil = require('../util/modelUtil');
let getui = require('getui');

let userRepo = require('../repository/doctor.repo.js');
let smRepo = require("../repository/system.msg.repo.js");
let nmRepo = require("../repository/notify.msg.repo.js");

class SystemMessage extends BaseModel{
    constructor() {
        super();
    }

    /**
     * 发送消息。
     *
     * @param message
     */
    send(message) {
        let self = this;
        userRepo.getUserStatus(message.to, function (err, rows) {
            if (err) {
                console.log("Lookup system message receiver failed: ", err);

                modelUtil.emitDbError(self.eventEmitter, "Lookup system message receiver failed.", err);
                return;
            }

            if (rows.length == 0) {
                modelUtil.emitDataNotFound(self.eventEmitter, "User not found: " + message.to);
                return;
            }

            let userStatus = rows[0];
            let isOnline = userStatus.is_online;
            let notifyMessage = JSON.stringify({type: 'system_msg', data: message.content});

            // 保存该条推送信息
            smRepo.save(message.to,
                message.contentType,
                message.title,
                message.summary,
                message.content,
                function (err, result) {
                    if (err) {
                        modelUtil.emitDbError(self.eventEmitter, "Save system notify message failed.", err);
                        return;
                    }

                    // 先通知外层操作已经完成，再处理后续操作。客户可先结束网络连接，减少客户端等待。
                    modelUtil.emitData(self.eventEmitter, {});

                    // 保存通知到数据库中
                    nmRepo.save(message.to,
                        message.contentType,
                        message.title,
                        message.summary,
                        notifyMessage,
                        isOnline,
                        function (err, result) {
                            if (err) {
                                modelUtil.logError("Save system notify message failed", err);
                                return;
                            }

                            if (!isOnline) return;

                            if (userStatus.platform === PLATFORMS.iOS) {
                                getui.pushAPN(message.to, userStatus.token, message.contentType, message.title, message.content, notifyMessage,
                                    function (err, result) {
                                        err != null ? console.log(err) : console.log(result);
                                    });
                            } else if (userStatus.platform === PLATFORMS.Android) {
                                getui.pushAndroid(userStatus.client_id, message.contentType, message.title, message.content, notifyMessage, userStatus.status,
                                    function (err, result) {
                                        err != null ? console.log(err) : console.log(result);
                                    });
                            }
                        });
                });
        });
    }
}

module.exports = SystemMessage;